//Initialize the clock
void clock_init(void)
{
GlobalInterruptDisable();
INTC_RegisterGroupHandler(INTC_IRQ_GROUP(AVR32_TC_IRQ0), AVR32_INTC_INT0, tc_irq);
GlobalInterruptEnable();
// Initialize the timer/counter.
tc_init_waveform(tc, &WAVEFORM_OPT); // Initialize the timer/counter waveform.
// Set the compare triggers.
// Remember TC counter is 16-bits, so counting second is not possible with fPBA = 12 MHz.
// We configure it to count ms.
// We want: (1/(fPBA/8)) * RC = 0.001 s, hence RC = (fPBA/8) / 1000 = 1500 to get an interrupt every 1 ms.
tc_write_rc(tc, TC_CHANNEL, (F_PBA_SPEED / 8) / 1000); // Set RC value.
//tc_write_ra(tc, TC_CHANNEL, 0); // Set RA value.
//tc_write_rb(tc, TC_CHANNEL, 1900); // Set RB value.
//gpio_enable_module_pin(AVR32_TC_A0_0_1_PIN, AVR32_TC_A0_0_1_FUNCTION);
//gpio_enable_module_pin(AVR32_TC_B0_0_1_PIN, AVR32_TC_B0_0_1_FUNCTION);
tc_configure_interrupts(tc, TC_CHANNEL, &TC_INTERRUPT);
// Start the timer/counter.
tc_start(tc, TC_CHANNEL); // And start the timer/counter.
}
void tc_init(void)
{
// The timer/counter instance and channel number are used in several functions.
// It's defined as local variable for ease-of-use causes and readability.
volatile avr32_tc_t *tc = WIFI_TC;
// Options for waveform genration.
tc_waveform_opt_t waveform_opt =
{
.channel = WIFI_TC_CHANNEL_ID, // Channel selection.
.bswtrg = TC_EVT_EFFECT_NOOP, // Software trigger effect on TIOB.
.beevt = TC_EVT_EFFECT_NOOP, // External event effect on TIOB.
.bcpc = TC_EVT_EFFECT_NOOP, // RC compare effect on TIOB.
.bcpb = TC_EVT_EFFECT_NOOP, // RB compare effect on TIOB.
.aswtrg = TC_EVT_EFFECT_NOOP, // Software trigger effect on TIOA.
.aeevt = TC_EVT_EFFECT_NOOP, // External event effect on TIOA.
.acpc = TC_EVT_EFFECT_TOGGLE, // RC compare effect on TIOA: toggle.
.acpa = TC_EVT_EFFECT_TOGGLE, // RA compare effect on TIOA: toggle (other possibilities are none, set and clear).
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,// Waveform selection: Up mode with automatic trigger(reset) on RC compare.
.enetrg = FALSE, // External event trigger enable.
.eevt = TC_EXT_EVENT_SEL_TIOB_INPUT, // External event selection.
.eevtedg = TC_SEL_NO_EDGE, // External event edge selection.
.cpcdis = FALSE, // Counter disable when RC compare.
.cpcstop = FALSE, // Counter clock stopped with RC compare.
.burst = TC_BURST_NOT_GATED, // Burst signal selection.
.clki = TC_CLOCK_RISING_EDGE, // Clock inversion.
.tcclks = TC_CLOCK_SOURCE_TC2 // Internal source clock 3, connected to fPBA / 2.
};
// Assign I/O to timer/counter channel pin & function.
gpio_enable_module_pin(WIFI_TC_CHANNEL_PIN, WIFI_TC_CHANNEL_FUNCTION);
// Initialize the timer/counter.
tc_init_waveform(tc, &waveform_opt); // Initialize the timer/counter waveform.
// Set the compare triggers.
tc_write_ra(tc, WIFI_TC_CHANNEL_ID, 0x01A4); // Set RA value.
tc_write_rc(tc, WIFI_TC_CHANNEL_ID, 0x0348); // Set RC value.
// Start the timer/counter.
tc_start(tc, WIFI_TC_CHANNEL_ID);
}
/**
* \brief TC Initialization
*
* Initializes and start the TC module with the following:
* - Counter in Up mode with automatic reset on RC compare match.
* - fPBA/8 is used as clock source for TC
* - Enables RC compare match interrupt
* \param tc Base address of the TC module
*/
static void tc_init(volatile avr32_tc_t *tc)
{
// Options for waveform generation.
static const tc_waveform_opt_t waveform_opt = {
// Channel selection.
.channel = EXAMPLE_TC_CHANNEL,
// Software trigger effect on TIOB.
.bswtrg = TC_EVT_EFFECT_NOOP,
// External event effect on TIOB.
.beevt = TC_EVT_EFFECT_NOOP,
// RC compare effect on TIOB.
.bcpc = TC_EVT_EFFECT_NOOP,
// RB compare effect on TIOB.
.bcpb = TC_EVT_EFFECT_NOOP,
// Software trigger effect on TIOA.
.aswtrg = TC_EVT_EFFECT_NOOP,
// External event effect on TIOA.
.aeevt = TC_EVT_EFFECT_NOOP,
// RC compare effect on TIOA.
.acpc = TC_EVT_EFFECT_NOOP,
/*
* RA compare effect on TIOA.
* (other possibilities are none, set and clear).
*/
.acpa = TC_EVT_EFFECT_NOOP,
/*
* Waveform selection: Up mode with automatic trigger(reset)
* on RC compare.
*/
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,
// External event trigger enable.
.enetrg = false,
// External event selection.
.eevt = 0,
// External event edge selection.
.eevtedg = TC_SEL_NO_EDGE,
// Counter disable when RC compare.
.cpcdis = false,
// Counter clock stopped with RC compare.
.cpcstop = false,
// Burst signal selection.
.burst = false,
// Clock inversion.
.clki = false,
// Internal source clock 3, connected to fPBA / 8.
.tcclks = TC_CLOCK_SOURCE_TC3
};
// Options for enabling TC interrupts
static const tc_interrupt_t tc_interrupt = {
.etrgs = 0,
.ldrbs = 0,
.ldras = 0,
.cpcs = 1, // Enable interrupt on RC compare alone
.cpbs = 0,
.cpas = 0,
.lovrs = 0,
.covfs = 0
};
// Initialize the timer/counter.
tc_init_waveform(tc, &waveform_opt);
/*
* Set the compare triggers.
* We configure it to count every 1 milliseconds.
* We want: (1 / (fPBA / 8)) * RC = 1 ms, hence RC = (fPBA / 8) / 1000
* to get an interrupt every 10 ms.
*/
tc_write_rc(tc, EXAMPLE_TC_CHANNEL, (sysclk_get_pba_hz() / 8 / 1000));
// configure the timer interrupt
tc_configure_interrupts(tc, EXAMPLE_TC_CHANNEL, &tc_interrupt);
// Start the timer/counter.
tc_start(tc, EXAMPLE_TC_CHANNEL);
}
/*! \brief Main function:
* - Configure the CPU to run at 12MHz
* - Configure the USART
* - Register the TC interrupt (GCC only)
* - Configure, enable the CPCS (RC compare match) interrupt, and start a
* TC channel in waveform mode
* - In an infinite loop, update the USART message every second.
*/
int main(void)
{
volatile avr32_tc_t *tc = EXAMPLE_TC;
uint32_t timer = 0;
/**
* \note the call to sysclk_init() will disable all non-vital
* peripheral clocks, except for the peripheral clocks explicitly
* enabled in conf_clock.h.
*/
sysclk_init();
// Enable the clock to the selected example Timer/counter peripheral module.
sysclk_enable_peripheral_clock(EXAMPLE_TC);
// Initialize the USART module for trace messages
init_dbg_rs232(sysclk_get_pba_hz());
// Disable the interrupts
cpu_irq_disable();
#if defined (__GNUC__)
// Initialize interrupt vectors.
INTC_init_interrupts();
// Register the RTC interrupt handler to the interrupt controller.
INTC_register_interrupt(&tc_irq, EXAMPLE_TC_IRQ, EXAMPLE_TC_IRQ_PRIORITY);
#endif
// Enable the interrupts
cpu_irq_enable();
// Initialize the timer module
tc_init(tc);
while (1) {
// Update the display on USART every second.
if ((update_timer) && (!(tc_tick%1000))) {
timer++;
// Set cursor to the position (1; 5)
print_dbg("\x1B[5;1H");
// Print the timer value
print_dbg("ATMEL AVR UC3 - Timer/Counter Example 3\n\rTimer: ");
print_dbg_ulong(timer);
print_dbg(" s");
// Reset the timer update flag to wait till next timer interrupt
update_timer = false;
}
}
}
/*! \brief Configure timer ISR to fire regularly.
*/
void
init_timer (void)
{
volatile avr32_tc_t *tc = EXAMPLE_TC;
/* options for waveform generation. */
static const tc_waveform_opt_t WAVEFORM_OPT = {
.channel = EXAMPLE_TC_CHANNEL, /* Channel selection. */
.bswtrg = TC_EVT_EFFECT_NOOP, /* Software trigger effect on TIOB. */
.beevt = TC_EVT_EFFECT_NOOP, /* External event effect on TIOB. */
.bcpc = TC_EVT_EFFECT_NOOP, /* RC compare effect on TIOB. */
.bcpb = TC_EVT_EFFECT_NOOP, /* RB compare effect on TIOB. */
.aswtrg = TC_EVT_EFFECT_NOOP, /* Software trigger effect on TIOA. */
.aeevt = TC_EVT_EFFECT_NOOP, /* External event effect on TIOA. */
.acpc = TC_EVT_EFFECT_NOOP, /* RC compare effect on TIOA: toggle. */
.acpa = TC_EVT_EFFECT_NOOP, /* RA compare effect on TIOA: toggle (other possibilities are none, set and clear). */
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER, /* Waveform selection: Up mode with automatic trigger(reset) on RC compare. */
.enetrg = 0u, /* External event trigger enable. */
.eevt = 0u, /* External event selection. */
.eevtedg = TC_SEL_NO_EDGE, /* External event edge selection. */
.cpcdis = 0u, /* Counter disable when RC compare. */
.cpcstop = 0u, /* Counter clock stopped with RC compare. */
.burst = 0u, /* Burst signal selection. */
.clki = 0u, /* Clock inversion. */
.tcclks = TC_CLOCK_SOURCE_TC3 /* Internal source clock 3, connected to fPBA / 8. */
};
static const tc_interrupt_t TC_INTERRUPT = {
.etrgs = 0u,
.ldrbs = 0u,
.ldras = 0u,
.cpcs = 1u,
.cpbs = 0u,
.cpas = 0u,
.lovrs = 0u,
.covfs = 0u
};
/* initialize the timer/counter. */
tc_init_waveform (tc, &WAVEFORM_OPT);
/* set the compare triggers. */
tc_write_rc (tc, EXAMPLE_TC_CHANNEL, EXAMPLE_RC_VALUE);
/* configure Timer interrupt. */
tc_configure_interrupts (tc, EXAMPLE_TC_CHANNEL, &TC_INTERRUPT);
/* start the timer/counter. */
tc_start (tc, EXAMPLE_TC_CHANNEL);
}
/*! \brief Timer compare ISR.
*/
#if (defined __GNUC__)
__attribute__ ((__interrupt__))
#elif (defined __ICCAVR32__)
__interrupt
#endif
static void
tc_irq (void)
{
/* update the current time */
current_time_ms_touch++;
/* every 25th ms */
if ((current_time_ms_touch % measurement_period_ms) == 0u)
{
/* set flag: it's time to measure touch */
time_to_measure_touch = 1u;
}
/* clear the interrupt flag. This is a side effect of reading the TC SR. */
tc_read_sr (EXAMPLE_TC, EXAMPLE_TC_CHANNEL);
}
/**
* \brief Initializes the TC subsystem ready to generate a LED PWM wave.
*
* Initializes the on-chip TC module in PWM generation mode, and configures the
* board LED as an output so that the LED brightness can be adjusted.
*/
static void pwm_timer_init(void)
{
// Assign output pin to timer/counter 0 channel B
gpio_enable_module_pin(AVR32_TC0_B0_0_0_PIN,
AVR32_TC0_B0_0_0_FUNCTION);
// Timer waveform options
const tc_waveform_opt_t waveform_options = {
//! Channel selection.
.channel = 0,
//! Software trigger effect on TIOB.
.bswtrg = TC_EVT_EFFECT_NOOP,
//! External event effect on TIOB.
.beevt = TC_EVT_EFFECT_NOOP,
//! RC compare effect on TIOB.
.bcpc = TC_EVT_EFFECT_CLEAR,
//! RB compare effect on TIOB.
.bcpb = TC_EVT_EFFECT_SET,
//! Software trigger effect on TIOA.
.aswtrg = TC_EVT_EFFECT_NOOP,
//! External event effect on TIOA.
.aeevt = TC_EVT_EFFECT_NOOP,
//! RC compare effect on TIOA.
.acpc = TC_EVT_EFFECT_NOOP,
//! RA compare effect on TIOA.
.acpa = TC_EVT_EFFECT_NOOP,
//! Waveform selection
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,
//! External event trigger enable.
.enetrg = false,
//! External event selection (non-zero for Channel B to work)
.eevt = !0,
//! External event edge selection.
.eevtedg = TC_SEL_NO_EDGE,
//! Counter disable when RC compare.
.cpcdis = false,
//! Counter clock stopped with RC compare.
.cpcstop = false,
//! Burst signal selection.
.burst = false,
//! Clock inversion selection.
.clki = false,
//! Internal source clock 5, fPBA/128.
.tcclks = TC_CLOCK_SOURCE_TC5,
};
// Setup timer/counter waveform mode
sysclk_enable_peripheral_clock(&AVR32_TC0);
tc_init_waveform(&AVR32_TC0, &waveform_options);
// Write the TOP (RC) and COMPARE (RB) values
tc_write_rb(&AVR32_TC0, 0, 1); // Set RB value.
tc_write_rc(&AVR32_TC0, 0, 255); // Set RC value.
// Start the timer PWM channel
tc_start(&AVR32_TC0, 0);
}
/**
* \brief Application main routine
*/
int main(void)
{
board_init();
sysclk_init();
irq_initialize_vectors();
cpu_irq_enable();
pwm_timer_init();
touch_init();
while (true) {
touch_handler();
}
}
/**
* \name PWM functions
* @{
*/
void ui_pwm_led_init(uint8_t lednum)
{
/* Timer waveform options */
static tc_waveform_opt_t waveform_options = {
/* Channel selection. */
.channel = 1,
.bswtrg = TC_EVT_EFFECT_NOOP,
.beevt = TC_EVT_EFFECT_NOOP,
.bcpc = TC_EVT_EFFECT_NOOP,
.bcpb = TC_EVT_EFFECT_NOOP,
.aswtrg = TC_EVT_EFFECT_NOOP,
.aeevt = TC_EVT_EFFECT_NOOP,
.acpc = TC_EVT_EFFECT_NOOP,
.acpa = TC_EVT_EFFECT_NOOP,
/* Waveform selection */
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,
/* External event trigger enable. */
.enetrg = false,
/* External event selection (non-zero for Channel B to work) */
.eevt = !0,
/* External event edge selection. */
.eevtedg = TC_SEL_NO_EDGE,
.cpcdis = false,
.cpcstop = false,
.burst = false,
.clki = false,
/* Internal source clock 5, fPBA/128. */
.tcclks = TC_CLOCK_SOURCE_TC5,
};
switch (lednum) {
case LED0:
/* Assign output pin to timer/counter 0 channel A */
/* Channel selection. */
waveform_options.channel = 1;
waveform_options.bcpc = TC_EVT_EFFECT_NOOP;
waveform_options.bcpb = TC_EVT_EFFECT_NOOP;
/* RC compare effect on TIOA. */
waveform_options.acpc = TC_EVT_EFFECT_CLEAR;
/* RA compare effect on TIOA. */
waveform_options.acpa = TC_EVT_EFFECT_SET;
/* Setup timer/counter waveform mode */
sysclk_enable_peripheral_clock(&AVR32_TC0);
tc_init_waveform(&AVR32_TC0, &waveform_options);
/* Write the TOP (RC) and COMPARE (RA) values */
tc_write_ra(&AVR32_TC0, 1, 1); /* Set RA value. */
tc_write_rc(&AVR32_TC0, 1, 255); /* Set RC value. */
/* Start the timer PWM channel */
tc_start(&AVR32_TC0, 1);
break;
case LED1:
/* Assign output pin to timer/counter 1 channel B */
/* Channel selection. */
waveform_options.channel = 2;
waveform_options.acpc = TC_EVT_EFFECT_NOOP;
waveform_options.acpa = TC_EVT_EFFECT_NOOP;
/* RC compare effect on TIOB. */
waveform_options.bcpc = TC_EVT_EFFECT_CLEAR;
/* RB compare effect on TIOB. */
waveform_options.bcpb = TC_EVT_EFFECT_SET;
/* Setup timer/counter waveform mode */
sysclk_enable_peripheral_clock(&AVR32_TC1);
tc_init_waveform(&AVR32_TC1, &waveform_options);
/* Write the TOP (RC) and COMPARE (RB) values */
tc_write_rb(&AVR32_TC1, 2, 1); /* Set RB value. */
tc_write_rc(&AVR32_TC1, 2, 255); /* Set RC value. */
/* Start the timer PWM channel */
tc_start(&AVR32_TC1, 2);
break;
default:
break;
}
}
void ui_pwm_update(uint8_t channum, uint8_t brightness)
{
switch (channum) {
case LED0:
if (brightness != 0) {
gpio_enable_module_pin(AVR32_TC0_A1_0_1_PIN,
AVR32_TC0_A1_0_1_FUNCTION);
tc_start(&AVR32_TC0, 1);
tc_write_ra(&AVR32_TC0, 1, brightness);
} else {
tc_stop(&AVR32_TC0, 1);
LED_Off(LED0);
}
break;
case LED1:
if (brightness != 0) {
gpio_enable_module_pin(AVR32_TC1_B2_0_PIN,
AVR32_TC1_B2_0_FUNCTION);
tc_start(&AVR32_TC1, 2);
tc_write_rb(&AVR32_TC1, 2, brightness);
} else {
tc_stop(&AVR32_TC1, 2);
LED_Off(LED0);
}
break;
default:
break;
}
}
/* End of PWM */
/** @} */
/**
* \name Display functions
* @{
*/
static void ui_display_enable(void)
{
delay_init(sysclk_get_cpu_hz());
et024006_Init( sysclk_get_cpu_hz(), sysclk_get_hsb_hz());
/* Clear the display i.e. make it black */
et024006_DrawFilledRect(0, 0, ET024006_WIDTH, ET024006_HEIGHT, BLACK );
/* Set the backlight. */
gpio_set_gpio_pin(ET024006DHU_BL_PIN);
ui_display_init_rtc();
ui_display_welcome_msg();
}
/**
* \brief TC Initialization
*
* Initializes and start the TC module with the following:
* - Counter in Up mode with automatic reset on RC compare match.
* - fPBA/8 is used as clock source for TC
* - Enables RC compare match interrupt
* \param tc Base address of the TC module
*/
static void tc_init(volatile avr32_tc_t *tc)
{
// Options for waveform generation.
static const tc_waveform_opt_t waveform_opt = {
// Channel selection.
.channel = EXAMPLE_TC_CHANNEL,
// Software trigger effect on TIOB.
.bswtrg = TC_EVT_EFFECT_NOOP,
// External event effect on TIOB.
.beevt = TC_EVT_EFFECT_NOOP,
// RC compare effect on TIOB.
.bcpc = TC_EVT_EFFECT_NOOP,
// RB compare effect on TIOB.
.bcpb = TC_EVT_EFFECT_NOOP,
// Software trigger effect on TIOA.
.aswtrg = TC_EVT_EFFECT_NOOP,
// External event effect on TIOA.
.aeevt = TC_EVT_EFFECT_NOOP,
// RC compare effect on TIOA.
.acpc = TC_EVT_EFFECT_NOOP,
/* RA compare effect on TIOA.
* (other possibilities are none, set and clear).
*/
.acpa = TC_EVT_EFFECT_NOOP,
/* Waveform selection: Up mode with automatic trigger(reset)
* on RC compare.
*/
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,
// External event trigger enable.
.enetrg = false,
// External event selection.
.eevt = 0,
// External event edge selection.
.eevtedg = TC_SEL_NO_EDGE,
// Counter disable when RC compare.
.cpcdis = false,
// Counter clock stopped with RC compare.
.cpcstop = false,
// Burst signal selection.
.burst = false,
// Clock inversion.
.clki = false,
// Internal source clock 3, connected to fPBA / 8.
.tcclks = TC_CLOCK_SOURCE_TC3
};
// Options for enabling TC interrupts
static const tc_interrupt_t tc_interrupt = {
.etrgs = 0,
.ldrbs = 0,
.ldras = 0,
.cpcs = 1, // Enable interrupt on RC compare alone
.cpbs = 0,
.cpas = 0,
.lovrs = 0,
.covfs = 0
};
// Initialize the timer/counter.
tc_init_waveform(tc, &waveform_opt);
/*
* Set the compare triggers.
* We configure it to count every 10 milliseconds.
* We want: (1 / (fPBA / 8)) * RC = 10 ms, hence RC = (fPBA / 8) / 100
* to get an interrupt every 10 ms.
*/
tc_write_rc(tc, EXAMPLE_TC_CHANNEL, (sysclk_get_pba_hz() / 8 / 100));
// configure the timer interrupt
tc_configure_interrupts(tc, EXAMPLE_TC_CHANNEL, &tc_interrupt);
// Start the timer/counter.
tc_start(tc, EXAMPLE_TC_CHANNEL);
}
/**
* \brief Main function
*
* Main function performs the following:
* - Configure the TC Module
* - Register the TC interrupt
* - Configure, enable the CPCS (RC compare match) interrupt,
* - and start a TC channel in waveform mode
*/
int main(void)
{
volatile avr32_tc_t *tc = EXAMPLE_TC;
uint32_t timer = 0;
/**
* \note the call to sysclk_init() will disable all non-vital
* peripheral clocks, except for the peripheral clocks explicitly
* enabled in conf_clock.h.
*/
sysclk_init();
// Enable the clock to the selected example Timer/counter peripheral module.
sysclk_enable_peripheral_clock(EXAMPLE_TC);
// Disable the interrupts
cpu_irq_disable();
// Initialize interrupt vectors.
INTC_init_interrupts();
// Register the RTC interrupt handler to the interrupt controller.
INTC_register_interrupt(&tc_irq, EXAMPLE_TC_IRQ, EXAMPLE_TC_IRQ_PRIORITY);
// Enable the interrupts
cpu_irq_enable();
// Initialize the timer module
tc_init(tc);
while(1) {
// Update the timer every 10 milli second.
if ((update_timer)) {
timer++;
/*
* TODO: Place a breakpoint here and watch the update of timer
* variable in the Watch Window.
*/
// Reset the timer update flag to wait till next timer interrupt
update_timer = false;
}
}
}
// initialize application timer
extern void init_tc (volatile avr32_tc_t *tc) {
// waveform options
static const tc_waveform_opt_t waveform_opt = {
.channel = APP_TC_CHANNEL, // channel
.bswtrg = TC_EVT_EFFECT_NOOP, // software trigger action on TIOB
.beevt = TC_EVT_EFFECT_NOOP, // external event action
.bcpc = TC_EVT_EFFECT_NOOP, // rc compare action
.bcpb = TC_EVT_EFFECT_NOOP, // rb compare
.aswtrg = TC_EVT_EFFECT_NOOP, // soft trig on TIOA
.aeevt = TC_EVT_EFFECT_NOOP, // etc
.acpc = TC_EVT_EFFECT_NOOP,
.acpa = TC_EVT_EFFECT_NOOP,
// Waveform selection: Up mode with automatic trigger(reset) on RC compare.
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,
.enetrg = false, // external event trig
.eevt = 0, // extern event select
.eevtedg = TC_SEL_NO_EDGE, // extern event edge
.cpcdis = false, // counter disable when rc compare
.cpcstop = false, // counter stopped when rc compare
.burst = false,
.clki = false,
// Internal source clock 5, connected to fPBA / 128.
.tcclks = TC_CLOCK_SOURCE_TC5
};
// Options for enabling TC interrupts
static const tc_interrupt_t tc_interrupt = {
.etrgs = 0,
.ldrbs = 0,
.ldras = 0,
.cpcs = 1, // Enable interrupt on RC compare alone
.cpbs = 0,
.cpas = 0,
.lovrs = 0,
.covfs = 0
};
// Initialize the timer/counter.
tc_init_waveform(tc, &waveform_opt);
// set timer compare trigger.
// we want it to overflow and generate an interrupt every 1 ms
// so (1 / fPBA / 128) * RC = 0.001
// so RC = fPBA / 128 / 1000
tc_write_rc(tc, APP_TC_CHANNEL, (FPBA_HZ / 128 / 1000));
// configure the timer interrupt
tc_configure_interrupts(tc, APP_TC_CHANNEL, &tc_interrupt);
// Start the timer/counter.
tc_start(tc, APP_TC_CHANNEL);
}
// initialize usb USARTy
void init_ftdi_usart (void) {
// GPIO map for USART.
static const gpio_map_t FTDI_USART_GPIO_MAP = {
{ FTDI_USART_RX_PIN, FTDI_USART_RX_FUNCTION },
{ FTDI_USART_TX_PIN, FTDI_USART_TX_FUNCTION }
};
// Options for USART.
static const usart_options_t FTDI_USART_OPTIONS = {
.baudrate = FTDI_USART_BAUDRATE,
.charlength = 8,
.paritytype = USART_NO_PARITY,
.stopbits = USART_1_STOPBIT,
.channelmode = USART_NORMAL_CHMODE
};
// Set up GPIO for FTDI_USART
gpio_enable_module(FTDI_USART_GPIO_MAP,
sizeof(FTDI_USART_GPIO_MAP) / sizeof(FTDI_USART_GPIO_MAP[0]));
// Initialize in RS232 mode.
usart_init_rs232(FTDI_USART, &FTDI_USART_OPTIONS, FPBA_HZ);
}
// initialize spi1: OLED, ADC, SD/MMC
extern void init_spi1 (void) {
static const gpio_map_t OLED_SPI_GPIO_MAP = {
{OLED_SPI_SCK_PIN, OLED_SPI_SCK_FUNCTION },
{OLED_SPI_MISO_PIN, OLED_SPI_MISO_FUNCTION},
{OLED_SPI_MOSI_PIN, OLED_SPI_MOSI_FUNCTION},
{OLED_SPI_NPCS0_PIN, OLED_SPI_NPCS0_FUNCTION },
{OLED_SPI_NPCS1_PIN, OLED_SPI_NPCS1_FUNCTION },
{OLED_SPI_NPCS2_PIN, OLED_SPI_NPCS2_FUNCTION },
};
// SPI options for OLED
spi_options_t spiOptions = {
.reg = OLED_SPI_NPCS,
.baudrate = 40000000,
.bits = 8,
.trans_delay = 0,
.spck_delay = 0,
.stay_act = 1,
.spi_mode = 3,
.modfdis = 1
};
// Assign GPIO to SPI.
gpio_enable_module(OLED_SPI_GPIO_MAP,
sizeof(OLED_SPI_GPIO_MAP) / sizeof(OLED_SPI_GPIO_MAP[0]));
// Initialize as master.
spi_initMaster(OLED_SPI, &spiOptions);
// Set SPI selection mode: variable_ps, pcs_decode, delay.
spi_selectionMode(OLED_SPI, 0, 0, 0);
// Enable SPI module.
spi_enable(OLED_SPI);
// setup chip register for OLED
spi_setupChipReg( OLED_SPI, &spiOptions, FPBA_HZ );
// add ADC chip register
spiOptions.reg = ADC_SPI_NPCS;
spiOptions.baudrate = 20000000;
spiOptions.bits = 16;
spiOptions.spi_mode = 2;
spiOptions.spck_delay = 0;
spiOptions.trans_delay = 5;
spiOptions.stay_act = 0;
spiOptions.modfdis = 0;
spi_setupChipReg( ADC_SPI, &spiOptions, FPBA_HZ );
// add SD/MMC chip register
spiOptions.reg = SD_MMC_SPI_NPCS;
spiOptions.baudrate = SD_MMC_SPI_MASTER_SPEED; // Defined in conf_sd_mmc_spi.h;
spiOptions.bits = SD_MMC_SPI_BITS; // Defined in conf_sd_mmc_spi.h;
spiOptions.spck_delay = 0;
spiOptions.trans_delay = 0;
spiOptions.stay_act = 1;
spiOptions.spi_mode = 0;
spiOptions.modfdis = 1;
// Initialize SD/MMC driver with SPI clock (PBA).
sd_mmc_spi_init(spiOptions, FPBA_HZ);
}
// init PDCA (Peripheral DMA Controller A) resources for the SPI transfer and start a dummy transfer
void init_local_pdca(void)
{
// PDCA channel for SPI RX
pdca_channel_options_t pdca_options_SPI_RX ={ // pdca channel options
.addr = (void *)&pdcaRxBuf,
.size = FS_BUF_SIZE, // transfer size
.r_addr = NULL, // next memory address after 1st transfer complete
.r_size = 0, // next transfer counter not used here
.pid = AVR32_PDCA_CHANNEL_USED_RX, // select peripheral ID - SPI1 RX
.transfer_size = PDCA_TRANSFER_SIZE_BYTE // select size of the transfer: 8,16,32 bits
};
// PDCA channel for SPI TX
pdca_channel_options_t pdca_options_SPI_TX ={ // pdca channel options
.addr = (void *)&pdcaTxBuf, // memory address.
.size = FS_BUF_SIZE, // transfer size
.r_addr = NULL, // next memory address after 1st transfer complete
.r_size = 0, // next transfer counter not used here
.pid = AVR32_PDCA_CHANNEL_USED_TX, // select peripheral ID - SPI1 TX
.transfer_size = PDCA_TRANSFER_SIZE_BYTE // select size of the transfer: 8,16,32 bits
};
// Init PDCA transmission channel
pdca_init_channel(AVR32_PDCA_CHANNEL_SPI_TX, &pdca_options_SPI_TX);
// Init PDCA Reception channel
pdca_init_channel(AVR32_PDCA_CHANNEL_SPI_RX, &pdca_options_SPI_RX);
}
// intialize resources for bf533 communication: SPI, GPIO
void init_bfin_resources(void) {
static const gpio_map_t BFIN_SPI_GPIO_MAP = {
{ BFIN_SPI_SCK_PIN, BFIN_SPI_SCK_FUNCTION },
{ BFIN_SPI_MISO_PIN, BFIN_SPI_MISO_FUNCTION },
{ BFIN_SPI_MOSI_PIN, BFIN_SPI_MOSI_FUNCTION },
{ BFIN_SPI_NPCS0_PIN, BFIN_SPI_NPCS0_FUNCTION },
};
spi_options_t spiOptions = {
.reg = BFIN_SPI_NPCS,
//// FIXME:
//// would prefer fast baudrate / lower trans delay during boot,
//// but need multiple registers for boot (fast) and run (slow)
//// investigate if this is possible...
// .baudrate = 20000000,
// .baudrate = 10000000,
// .baudrate = 5000000,
.baudrate = 20000000,
.bits = 8,
.spck_delay = 0,
// .trans_delay = 0,
.trans_delay = 20,
.stay_act = 1,
.spi_mode = 1,
.modfdis = 1
};
// assign pins to SPI.
gpio_enable_module(BFIN_SPI_GPIO_MAP,
sizeof(BFIN_SPI_GPIO_MAP) / sizeof(BFIN_SPI_GPIO_MAP[0]));
// intialize as master
spi_initMaster(BFIN_SPI, &spiOptions);
// set selection mode: variable_ps, pcs_decode, delay.
spi_selectionMode(BFIN_SPI, 0, 0, 0);
// enable SPI.
spi_enable(BFIN_SPI);
// intialize the chip register
spi_setupChipReg(BFIN_SPI, &spiOptions, FPBA_HZ);
// enable pulldown on bfin HWAIT line
//// shit! not implemented...
// gpio_enable_pin_pull_down(BFIN_HWAIT_PIN);
// enable pullup on bfin RESET line
gpio_enable_pin_pull_up(BFIN_RESET_PIN);
}
// intialize two-wire interface
void init_twi(void) {
// TWI/I2C GPIO map
static const gpio_map_t TWI_GPIO_MAP = {
{ TWI_DATA_PIN, TWI_DATA_FUNCTION },
{ TWI_CLOCK_PIN, TWI_CLOCK_FUNCTION }
};
gpio_enable_module(TWI_GPIO_MAP, sizeof(TWI_GPIO_MAP) / sizeof(TWI_GPIO_MAP[0]));
}
// initialize USB host stack
void init_usb_host (void) {
// pm_configure_usb_clock();
uhc_start();
}
static void tc_init_fast(volatile avr32_tc_t *tc)
{
// Options for waveform generation.
static const tc_waveform_opt_t waveform_opt_1 = {
.channel = FAST_TC_CHANNEL, // Channel selection.
.bswtrg = TC_EVT_EFFECT_NOOP, // Software trigger effect on TIOB.
.beevt = TC_EVT_EFFECT_NOOP, // External event effect on TIOB.
.bcpc = TC_EVT_EFFECT_NOOP, // RC compare effect on TIOB.
.bcpb = TC_EVT_EFFECT_NOOP, // RB compare effect on TIOB.
.aswtrg = TC_EVT_EFFECT_NOOP, // Software trigger effect on TIOA.
.aeevt = TC_EVT_EFFECT_NOOP, // External event effect on TIOA.
.acpc = TC_EVT_EFFECT_NOOP, // RC compare effect on TIOA.
.acpa = TC_EVT_EFFECT_NOOP, //RA compare effect on TIOA.
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER, //Waveform selection: Up mode with automatic trigger(reset)
.enetrg = false, //// External event trigger enable.
.eevt = 0, //// External event selection.
.eevtedg = TC_SEL_NO_EDGE, //// External event edge selection.
.cpcdis = false, // Counter disable when RC compare.
.cpcstop = false, // Counter clock stopped with RC compare.
.burst = false, // Burst signal selection
.clki = false, // Clock inversion.
.tcclks = TC_CLOCK_SOURCE_TC3 // Internal source clock 3, connected to fPBA / 8.
};
// Options for enabling TC interrupts
static const tc_interrupt_t tc_interrupt = {
.etrgs = 0,
.ldrbs = 0,
.ldras = 0,
.cpcs = 1, // Enable interrupt on RC compare alone
.cpbs = 0,
.cpas = 0,
.lovrs = 0,
.covfs = 0
};
// Initialize the timer/counter.
tc_init_waveform(tc, &waveform_opt_1);
tc_write_rc(tc, FAST_TC_CHANNEL, 10);
// configure the timer interrupt
tc_configure_interrupts(tc, FAST_TC_CHANNEL, &tc_interrupt);
}
static void tc_init_slow(volatile avr32_tc_t *tc)
{
// Options for waveform generation.
static const tc_waveform_opt_t waveform_opt_2 = {
.channel = SLOW_TC_fast_CHANNEL, // Channel selection.
.bswtrg = TC_EVT_EFFECT_NOOP, // Software trigger effect on TIOB.
.beevt = TC_EVT_EFFECT_NOOP, // External event effect on TIOB.
.bcpc = TC_EVT_EFFECT_NOOP, // RC compare effect on TIOB.
.bcpb = TC_EVT_EFFECT_NOOP, // RB compare effect on TIOB.
.aswtrg = TC_EVT_EFFECT_NOOP, // Software trigger effect on TIOA.
.aeevt = TC_EVT_EFFECT_NOOP, // External event effect on TIOA.
.acpc = TC_EVT_EFFECT_CLEAR, // RC compare effect on TIOA.
.acpa = TC_EVT_EFFECT_SET, // RA compare effect on TIOA.
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER, //Waveform selection: Up mode with automatic trigger(reset)
.enetrg = false, // External event trigger enable.
.eevt = 0, // External event selection.
.eevtedg = TC_SEL_NO_EDGE, // External event edge selection.
.cpcdis = false, // Counter disable when RC compare.
.cpcstop = false, // Counter clock stopped with RC compare.
.burst = false, // Burst signal selection.
.clki = false, // Clock inversion.
.tcclks = TC_CLOCK_SOURCE_TC3 // Internal source clock 3, connected to fPBA / 8.
};
// Initialize the timer/counter.
tc_init_waveform(tc, &waveform_opt_2);
tc_write_rc(tc, SLOW_TC_fast_CHANNEL, 7500); //counter will count milliseconds
tc_write_ra(tc, SLOW_TC_fast_CHANNEL, 3500); //configure ra so that TIOA0 is toggled
static const tc_waveform_opt_t waveform_opt_3 = {
.channel = SLOW_TC_slow_CHANNEL, // Channel selection.
.bswtrg = TC_EVT_EFFECT_NOOP, // Software trigger effect on TIOB.
.beevt = TC_EVT_EFFECT_NOOP, // External event effect on TIOB.
.bcpc = TC_EVT_EFFECT_NOOP, // RC compare effect on TIOB.
.bcpb = TC_EVT_EFFECT_NOOP, // RB compare effect on TIOB.
.aswtrg = TC_EVT_EFFECT_NOOP, // Software trigger effect on TIOA.
.aeevt = TC_EVT_EFFECT_NOOP, // External event effect on TIOA.
.acpc = TC_EVT_EFFECT_NOOP, // RC compare effect on TIOA.
.acpa = TC_EVT_EFFECT_NOOP, //RA compare effect on TIOA.
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER, //Waveform selection: Up mode with automatic trigger(reset)
.enetrg = false, //// External event trigger enable.
.eevt = 0, //// External event selection.
.eevtedg = TC_SEL_NO_EDGE, //// External event edge selection.
.cpcdis = false, // Counter disable when RC compare.
.cpcstop = false, // Counter clock stopped with RC compare.
.burst = false, // Burst signal selection.
.clki = false, // Clock inversion.
.tcclks = TC_CLOCK_SOURCE_XC0 // Use XC1 as clock source. Must configure TIOA0 to be XC1
};
tc_init_waveform(tc, &waveform_opt_3);
tc_write_rc(tc, SLOW_TC_slow_CHANNEL, 100); //
tc_select_external_clock(tc,SLOW_TC_slow_CHANNEL,AVR32_TC_BMR_TC0XC0S_TIOA1); //use TIOA1 as XC0
}
static void configure_hmatrix(uint32_t mode)
{
// Configure all Slave in Last Default Master
#if (defined AVR32_HMATRIX)
for(uint32_t i = 0; i < AVR32_HMATRIX_SLAVE_NUM; i++) {
AVR32_HMATRIX.SCFG[i].defmstr_type = mode;
}
#endif
#if (defined AVR32_HMATRIXB)
for(uint32_t i = 0;i < AVR32_HMATRIXB_SLAVE_NUM; i++) {
AVR32_HMATRIXB.SCFG[i].defmstr_type = mode;
}
#endif
}
void board_init(void)
{
/* This function is meant to contain board-specific initialization code
* for, e.g., the I/O pins. The initialization can rely on application-
* specific board configuration, found in conf_board.h.
*/
gpio_local_init();
static pcl_freq_param_t pcl_freq_param =
{
.cpu_f = CPU_SPEED,
.pba_f = PBA_SPEED,
.osc0_f = FOSC0,
.osc0_startup = OSC0_STARTUP
};
if (pcl_configure_clocks(&pcl_freq_param) != PASS)
while (true);
configure_hmatrix(AVR32_HMATRIXB_DEFMSTR_TYPE_NO_DEFAULT);
AVR32_LowLevelInit();
//configure all GPIO
gpio_local_enable_pin_output_driver(ADC_CONV_pin);
gpio_local_clr_gpio_pin(ADC_CONV_pin);
gpio_local_enable_pin_output_driver(DDS_IOUD_pin);
gpio_local_clr_gpio_pin(DDS_IOUD_pin);
gpio_local_enable_pin_output_driver(DDS_RESET_pin);
gpio_local_clr_gpio_pin(DDS_RESET_pin);
gpio_local_enable_pin_output_driver(DDS_PDN_pin);
gpio_local_set_gpio_pin(DDS_PDN_pin);
gpio_local_enable_pin_output_driver(DDS_P0_pin);
gpio_local_clr_gpio_pin(DDS_P0_pin);
gpio_local_enable_pin_output_driver(DDS_P1_pin);
gpio_local_clr_gpio_pin(DDS_P1_pin);
gpio_local_enable_pin_output_driver(DDS_P2_pin);
gpio_local_clr_gpio_pin(DDS_P2_pin);
gpio_local_enable_pin_output_driver(DDS_P3_pin);
gpio_local_clr_gpio_pin(DDS_P3_pin);
gpio_local_enable_pin_output_driver(RXSW_pin);
gpio_local_clr_gpio_pin(RXSW_pin);
gpio_local_enable_pin_output_driver(TXSW_pin);
gpio_local_clr_gpio_pin(TXSW_pin);
gpio_local_enable_pin_output_driver(TPAbias_pin);
gpio_local_clr_gpio_pin(TPAbias_pin);
gpio_local_enable_pin_output_driver(GEN1_pin);
gpio_local_clr_gpio_pin(GEN1_pin);
gpio_local_enable_pin_output_driver(GEN2_pin);
gpio_local_clr_gpio_pin(GEN2_pin);
gpio_local_enable_pin_output_driver(PWM0_pin);
gpio_local_clr_gpio_pin(PWM0_pin);
gpio_local_disable_pin_output_driver(SD_detect_pin);
//configure all peripheral IO
static const gpio_map_t GCLK_GPIO_MAP =
{
{AVR32_SCIF_GCLK_0_1_PIN, AVR32_SCIF_GCLK_0_1_FUNCTION}
};
gpio_enable_module(GCLK_GPIO_MAP,
sizeof(GCLK_GPIO_MAP) / sizeof(GCLK_GPIO_MAP[0]));
genclk_enable_config(9, GENCLK_SRC_CLK_CPU, 2);
static const gpio_map_t SPI_GPIO_MAP =
{
{SPI1_SCK_PIN, SPI1_SCK_FUNCTION},
{SPI1_MOSI_PIN, SPI1_MOSI_FUNCTION},
{SPI1_MISO_PIN, SPI1_MISO_FUNCTION},
{SPI1_NPCS2_PIN, SPI1_NPCS2_FUNCTION}
};
gpio_enable_module(SPI_GPIO_MAP,
sizeof(SPI_GPIO_MAP) / sizeof(SPI_GPIO_MAP[0]));
spi_options_t SPI1_OPTIONS_0 =
{
.reg = 0, //! The SPI channel to set up.
.baudrate = 30000000, //! Preferred baudrate for the SPI.
.bits =16, //! Number of bits in each character (8 to 16).
.spck_delay =0, //! Delay before first clock pulse after selecting slave (in PBA clock periods).
.trans_delay =0, //! Delay between each transfer/character (in PBA clock periods).
.stay_act =0, //! Sets this chip to stay active after last transfer to it.
.spi_mode =1, //! Which SPI mode to use when transmitting.
.modfdis =1 //! Disables the mode fault detection.
};
spi_options_t SPI1_OPTIONS_3 =
{
.reg = 3, //! The SPI channel to set up.
.baudrate = 30000000, //! Preferred baudrate for the SPI.
.bits =8, //! Number of bits in each character (8 to 16).
.spck_delay =0, //! Delay before first clock pulse after selecting slave (in PBA clock periods).
.trans_delay =0, //! Delay between each transfer/character (in PBA clock periods).
.stay_act =1, //! Sets this chip to stay active after last transfer to it.
.spi_mode =0, //! Which SPI mode to use when transmitting.
.modfdis =1 //! Disables the mode fault detection.
};
spi_initMaster(SPI1, &SPI1_OPTIONS_0);
spi_selectionMode(SPI1,1,0,0);
spi_enable(SPI1);
spi_setupChipReg(SPI1,&SPI1_OPTIONS_0,PBA_SPEED);
spi_setupChipReg(SPI1,&SPI1_OPTIONS_3,PBA_SPEED);
spi_selectChip(SPI1, 3);
static const gpio_map_t USB_USART_GPIO_MAP =
{
{USB_USART_RX_PIN, USB_USART_RX_FUNCTION},
{USB_USART_TX_PIN, USB_USART_TX_FUNCTION},
{USB_USART_RTS_PIN, USB_USART_RTS_FUNCTION},
{USB_USART_CTS_PIN, USB_USART_CTS_FUNCTION}
};
gpio_enable_module(USB_USART_GPIO_MAP,
sizeof(USB_USART_GPIO_MAP) / sizeof(USB_USART_GPIO_MAP[0]));
static const usart_options_t USB_USART_OPTIONS =
{
.baudrate = 3000000,
.charlength = 8,
.paritytype = USART_NO_PARITY,
.stopbits = USART_1_STOPBIT,
.channelmode = USART_NORMAL_CHMODE
};
usart_init_hw_handshaking(USB_USART, &USB_USART_OPTIONS, PBA_SPEED);
static const gpio_map_t LCD_USART_GPIO_MAP =
{
{LCD_USART_RX_PIN, LCD_USART_RX_FUNCTION},
{LCD_USART_TX_PIN, LCD_USART_TX_FUNCTION}
};
gpio_enable_module(LCD_USART_GPIO_MAP,
sizeof(LCD_USART_GPIO_MAP) / sizeof(LCD_USART_GPIO_MAP[0]));
static const usart_options_t LCD_USART_OPTIONS =
{
.baudrate = 115200,
.charlength = 8,
.paritytype = USART_NO_PARITY,
.stopbits = USART_1_STOPBIT,
.channelmode = USART_NORMAL_CHMODE
};
usart_init_rs232(LCD_USART, &LCD_USART_OPTIONS, PBA_SPEED);
LCD_USART->cr|=AVR32_USART_CR_STTTO_MASK; //set timeout to stop until new character is received
LCD_USART->rtor=230; //set to timeout in 2ms
my_pdca_init_channel(LCD_USART_RX_PDCA_CHANNEL, (uint32_t)(&LCD_USART_buffer),(uint32_t)(sizeof(LCD_USART_buffer)),LCD_USART_RX_PDCA_PID,0,0, PDCA_TRANSFER_SIZE_BYTE);
pdca_disable(LCD_USART_RX_PDCA_CHANNEL);
my_pdca_init_channel(USB_USART_RX_PDCA_CHANNEL, (uint32_t)(&host_USART_buffer),(uint32_t)(sizeof(host_USART_buffer)),USB_USART_RX_PDCA_PID,0,0, PDCA_TRANSFER_SIZE_BYTE);
pdca_disable(USB_USART_RX_PDCA_CHANNEL);
USB_USART->cr|=AVR32_USART_CR_STTTO_MASK; //set timeout to stop until new character is received
USB_USART->rtor=15000; //set to timeout in 1ms
// GPIO pins used for SD/MMC interface
static const gpio_map_t SD_MMC_SPI_GPIO_MAP =
{
{SPI0_SCK_PIN, SPI0_SCK_FUNCTION }, // SPI Clock.
{SPI0_MISO_PIN, SPI0_MISO_FUNCTION}, // MISO.
{SPI0_MOSI_PIN, SPI0_MOSI_FUNCTION}, // MOSI.
{SPI0_NPCS0_PIN, SPI0_NPCS0_FUNCTION} // Chip Select NPCS.
};
//SPI options.
spi_options_t SD_spiOptions =
{
.reg = SD_MMC_SPI_NPCS,
.baudrate = SD_SPI_SPEED, // Defined in conf_sd_mmc_spi.h.
.bits = 8, // Defined in conf_sd_mmc_spi.h.
.spck_delay = 0,
.trans_delay = 0,
.stay_act = 1,
.spi_mode = 0,
.modfdis = 1
};
// Assign I/Os to SPI.
gpio_enable_module(SD_MMC_SPI_GPIO_MAP,sizeof(SD_MMC_SPI_GPIO_MAP) / sizeof(SD_MMC_SPI_GPIO_MAP[0]));
// Initialize as master.
spi_initMaster(SPI0, &SD_spiOptions);
// Set SPI selection mode: variable_ps, pcs_decode, delay.
spi_selectionMode(SPI0, 0, 0, 0);
// Enable SPI module.
spi_enable(SPI0);
// Initialize SD/MMC driver with SPI clock (PBA).
sd_mmc_spi_init(SD_spiOptions, PBA_SPEED);
tc_init_fast(FAST_TC);
tc_init_slow(SLOW_TC);
static const gpio_map_t DACIFB_GPIO_MAP =
{
{AVR32_DACREF_PIN,AVR32_DACREF_FUNCTION},
{AVR32_ADCREFP_PIN,AVR32_ADCREFP_FUNCTION},
{AVR32_ADCREFN_PIN,AVR32_ADCREFN_FUNCTION},
{DAC0A_pin, DAC0A_FUNCTION},
{DAC1A_pin, DAC1A_FUNCTION}
};
gpio_enable_module(DACIFB_GPIO_MAP, sizeof(DACIFB_GPIO_MAP) / sizeof(DACIFB_GPIO_MAP[0]));
dacifb_opt_t dacifb_opt = {
.reference = DACIFB_REFERENCE_EXT , // VDDANA Reference
.channel_selection = DACIFB_CHANNEL_SELECTION_A, // Selection Channels A&B
.low_power = false, // Low Power Mode
.dual = false, // Dual Mode
.prescaler_clock_hz = DAC_PRESCALER_CLK // Prescaler Clock (Should be 500Khz)
};
// DAC Channel Configuration
dacifb_channel_opt_t dacifb_channel_opt = {
.auto_refresh_mode = true, // Auto Refresh Mode
.trigger_mode = DACIFB_TRIGGER_MODE_MANUAL, // Trigger selection
.left_adjustment = false, // Right Adjustment
.data_shift = 0, // Number of Data Shift
.data_round_enable = false // Data Rouding Mode };
};
volatile avr32_dacifb_t *dacifb0 = &AVR32_DACIFB0; // DACIFB IP registers address
volatile avr32_dacifb_t *dacifb1 = &AVR32_DACIFB1; // DACIFB IP registers address
//The factory calibration for DADIFB is broken, so use manual calibration
//dacifb_get_calibration_data(DAC0,&dacifb_opt,0);
dacifb_opt.gain_calibration_value=0x0090;
dacifb_opt.offset_calibration_value=0x0153;
// configure DACIFB0
dacifb_configure(DAC0,&dacifb_opt,PBA_SPEED);
dacifb_configure_channel(DAC0,DACIFB_CHANNEL_SELECTION_A,&dacifb_channel_opt,DAC_PRESCALER_CLK);
dacifb_start_channel(DAC0,DACIFB_CHANNEL_SELECTION_A,PBA_SPEED);
//The factory calibration for DADIFB is broken, so use manual calibration
dacifb_set_value(DAC0,DACIFB_CHANNEL_SELECTION_A,false,1024);
//dacifb_get_calibration_data(DAC1, &dacifb_opt,1);
dacifb_opt.gain_calibration_value=0x0084;
dacifb_opt.offset_calibration_value=0x0102;
// configure DACIFB1
dacifb_configure(DAC1,&dacifb_opt,PBA_SPEED);
dacifb_configure_channel(DAC1,DACIFB_CHANNEL_SELECTION_A,&dacifb_channel_opt,DAC_PRESCALER_CLK);
dacifb_start_channel(DAC1,DACIFB_CHANNEL_SELECTION_A,PBA_SPEED);
dacifb_set_value(DAC1,DACIFB_CHANNEL_SELECTION_A,false,1024);
DAC0->dr0=2048;
DAC1->dr0=4095;
}
void setup_timer_controller(__int_handler handler)
{
// Options for waveform generation.
static const tc_waveform_opt_t waveform_opt = {
// Channel selection.
.channel = EXAMPLE_TC_CHANNEL,
// Software trigger effect on TIOB.
.bswtrg = TC_EVT_EFFECT_NOOP,
// External event effect on TIOB.
.beevt = TC_EVT_EFFECT_NOOP,
// RC compare effect on TIOB.
.bcpc = TC_EVT_EFFECT_NOOP,
// RB compare effect on TIOB.
.bcpb = TC_EVT_EFFECT_NOOP,
// Software trigger effect on TIOA.
.aswtrg = TC_EVT_EFFECT_NOOP,
// External event effect on TIOA.
.aeevt = TC_EVT_EFFECT_NOOP,
// RC compare effect on TIOA.
.acpc = TC_EVT_EFFECT_NOOP,
/*
* RA compare effect on TIOA.
* (other possibilities are none, set and clear).
*/
.acpa = TC_EVT_EFFECT_NOOP,
/*
* Waveform selection: Up mode with automatic trigger(reset)
* on RC compare.
*/
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,
// External event trigger enable.
.enetrg = false,
// External event selection.
.eevt = 0,
// External event edge selection.
.eevtedg = TC_SEL_NO_EDGE,
// Counter disable when RC compare.
.cpcdis = false,
// Counter clock stopped with RC compare.
.cpcstop = false,
// Burst signal selection.
.burst = false,
// Clock inversion.
.clki = false,
// Internal source clock 3, connected to fPBA / 8.
.tcclks = TC_CLOCK_SOURCE_TC3
};
// Options for enabling TC interrupts
static const tc_interrupt_t tc_interrupt = {
.etrgs = 0,
.ldrbs = 0,
.ldras = 0,
.cpcs = 1, // Enable interrupt on RC compare alone
.cpbs = 0,
.cpas = 0,
.lovrs = 0,
.covfs = 0
};
sysclk_enable_peripheral_clock((&AVR32_TC));
cpu_irq_disable();
INTC_init_interrupts();
INTC_register_interrupt(handler, EXAMPLE_TC_IRQ, EXAMPLE_TC_IRQ_PRIORITY);
cpu_irq_enable();
// Initialize the timer/counter.
tc_init_waveform((&AVR32_TC), &waveform_opt);
/*
* Set the compare triggers.
* We configure it to count every 1 milliseconds.
* We want: (1 / (fPBA / 8)) * RC = 1 ms, hence RC = (fPBA / 8) / 1000
* to get an interrupt every 10 ms.
*/
// tc_write_rc((&AVR32_TC), EXAMPLE_TC_CHANNEL, (sysclk_get_pba_hz() / 8 / 1000));
// tc_write_rc((&AVR32_TC), EXAMPLE_TC_CHANNEL, (sysclk_get_pba_hz() / 8 / 2000));
tc_write_rc((&AVR32_TC), EXAMPLE_TC_CHANNEL, (12 * MHz / 8 / 325));
// configure the timer interrupt
tc_configure_interrupts((&AVR32_TC), EXAMPLE_TC_CHANNEL, &tc_interrupt);
// Start the timer/counter.
tc_start((&AVR32_TC), EXAMPLE_TC_CHANNEL);
}
/**
* \brief Function to initialize the Timer/Counter module in Waveform mode.
* It fires the ISR at regular intervals to start QTouch Acquisition.
*/
void init_timer_isr( void )
{
// Configure the timer isr to fire regularly
volatile avr32_tc_t *tc = &AVR32_TC;
// Waveform Mode Options for TC
static const tc_waveform_opt_t WAVEFORM_OPT = {
// Channel selection : channel 0.
.channel = TC_CHANNEL,
// Software trigger effect on TIOB : none.
.bswtrg = TC_EVT_EFFECT_NOOP,
// External event effect on TIOB : none.
.beevt = TC_EVT_EFFECT_NOOP,
// RC compare effect on TIOB : none.
.bcpc = TC_EVT_EFFECT_NOOP,
// RB compare effect on TIOB : none.
.bcpb = TC_EVT_EFFECT_NOOP,
// Software trigger effect on TIOA : none.
.aswtrg = TC_EVT_EFFECT_NOOP,
// External event effect on TIOA : none.
.aeevt = TC_EVT_EFFECT_NOOP,
// RC compare effect on TIOA: None
.acpc = TC_EVT_EFFECT_NOOP,
// RA compare effect on TIOA: none
.acpa = TC_EVT_EFFECT_NOOP,
// Waveform selection: Up mode with automatic trigger(reset) on RC compare.
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,
// External event trigger enable : no effect.
.enetrg = false,
// External event selection : .
.eevt = 0u,
// External event edge selection : none.
.eevtedg = TC_SEL_NO_EDGE,
// Counter disable when RC compare.
.cpcdis = false,
// Counter clock stopped with RC compare.
.cpcstop = false,
// Burst signal selection.
.burst = false,
// Clock inversion.
.clki = false,
// Internal source clock 3
.tcclks = TC_CLOCK
};
// Configure the interrupts
static const tc_interrupt_t TC_INTERRUPT = {
.etrgs = 0u,
.ldrbs = 0u,
.ldras = 0u,
// Interrupt is enabled for RC compare match
.cpcs = 1u,
.cpbs = 0u,
.cpas = 0u,
.lovrs = 0u,
.covfs = 0u
};
// Initialize the timer/counter waveform.
tc_init_waveform(tc, &WAVEFORM_OPT);
/*
* Set the compare triggers.
* We configure it to count every 1 milliseconds.
* We want: (1 / (fPBA / 8)) * RC = 1 ms, hence RC = (fPBA / 8) / 1000
* to get an interrupt every 10 ms.
*/
tc_write_rc(tc, TC_CHANNEL, (sysclk_get_pba_hz() / 8 / 1000));
// Configure the interrupts for channel 0
tc_configure_interrupts(tc, TC_CHANNEL, &TC_INTERRUPT);
// Initialize interrupt vectors.
irq_initialize_vectors();
// Register the timer interrupt handler to the interrupt controller
irq_register_handler(&tc_irq, TC_IRQ, AVR32_INTC_INT0);
// Start the timer/counter.
tc_start(tc, TC_CHANNEL);
} // end of init_timer_isr
// initialize application timer
extern void init_tc (void) {
volatile avr32_tc_t *tc = APP_TC;
// waveform options
static const tc_waveform_opt_t waveform_opt = {
.channel = APP_TC_CHANNEL, // channel
.bswtrg = TC_EVT_EFFECT_NOOP, // software trigger action on TIOB
.beevt = TC_EVT_EFFECT_NOOP, // external event action
.bcpc = TC_EVT_EFFECT_NOOP, // rc compare action
.bcpb = TC_EVT_EFFECT_NOOP, // rb compare
.aswtrg = TC_EVT_EFFECT_NOOP, // soft trig on TIOA
.aeevt = TC_EVT_EFFECT_NOOP, // etc
.acpc = TC_EVT_EFFECT_NOOP,
.acpa = TC_EVT_EFFECT_NOOP,
// Waveform selection: Up mode with automatic trigger(reset) on RC compare.
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,
.enetrg = false, // external event trig
.eevt = 0, // extern event select
.eevtedg = TC_SEL_NO_EDGE, // extern event edge
.cpcdis = false, // counter disable when rc compare
.cpcstop = false, // counter stopped when rc compare
.burst = false,
.clki = false,
// Internal source clock 5, connected to fPBA / 128.
.tcclks = TC_CLOCK_SOURCE_TC5
};
// Options for enabling TC interrupts
static const tc_interrupt_t tc_interrupt = {
.etrgs = 0,
.ldrbs = 0,
.ldras = 0,
.cpcs = 1, // Enable interrupt on RC compare alone
.cpbs = 0,
.cpas = 0,
.lovrs = 0,
.covfs = 0
};
// Initialize the timer/counter.
tc_init_waveform(tc, &waveform_opt);
// set timer compare trigger.
// we want it to overflow and generate an interrupt every 1 ms
// so (1 / fPBA / 128) * RC = 0.001
// so RC = fPBA / 128 / 1000
// tc_write_rc(tc, APP_TC_CHANNEL, (FPBA_HZ / 128000));
tc_write_rc(tc, APP_TC_CHANNEL, (FPBA_HZ / 128000));
// configure the timer interrupt
tc_configure_interrupts(tc, APP_TC_CHANNEL, &tc_interrupt);
// Start the timer/counter.
tc_start(tc, APP_TC_CHANNEL);
}
extern void init_spi (void) {
sysclk_enable_pba_module(SYSCLK_SPI);
static const gpio_map_t SPI_GPIO_MAP = {
{SPI_SCK_PIN, SPI_SCK_FUNCTION },
{SPI_MISO_PIN, SPI_MISO_FUNCTION},
{SPI_MOSI_PIN, SPI_MOSI_FUNCTION},
{SPI_NPCS0_PIN, SPI_NPCS0_FUNCTION },
{SPI_NPCS1_PIN, SPI_NPCS1_FUNCTION },
{SPI_NPCS2_PIN, SPI_NPCS2_FUNCTION },
};
// Assign GPIO to SPI.
gpio_enable_module(SPI_GPIO_MAP, sizeof(SPI_GPIO_MAP) / sizeof(SPI_GPIO_MAP[0]));
spi_options_t spiOptions = {
.reg = DAC_SPI,
.baudrate = 2000000,
.bits = 8,
.trans_delay = 0,
.spck_delay = 0,
.stay_act = 1,
.spi_mode = 1,
.modfdis = 1
};
// Initialize as master.
spi_initMaster(SPI, &spiOptions);
// Set SPI selection mode: variable_ps, pcs_decode, delay.
spi_selectionMode(SPI, 0, 0, 0);
// Enable SPI module.
spi_enable(SPI);
// spi_setupChipReg( SPI, &spiOptions, FPBA_HZ );
spi_setupChipReg(SPI, &spiOptions, sysclk_get_pba_hz() );
// add ADC chip register
spiOptions.reg = ADC_SPI;
spiOptions.baudrate = 20000000;
spiOptions.bits = 16;
spiOptions.spi_mode = 2;
spiOptions.spck_delay = 0;
spiOptions.trans_delay = 5;
spiOptions.stay_act = 0;
spiOptions.modfdis = 0;
spi_setupChipReg( SPI, &spiOptions, FPBA_HZ );
// add OLED chip register
spiOptions.reg = OLED_SPI;
spiOptions.baudrate = 40000000;
spiOptions.bits = 8;
spiOptions.spi_mode = 3;
spiOptions.spck_delay = 0;
spiOptions.trans_delay = 0;
spiOptions.stay_act = 1;
spiOptions.modfdis = 1;
spi_setupChipReg( SPI, &spiOptions, FPBA_HZ );
}
// initialize USB host stack
void init_usb_host (void) {
uhc_start();
}
// initialize i2c
void init_i2c_master(void) {
twi_options_t opt;
int status;
static const gpio_map_t TWI_GPIO_MAP = {
{AVR32_TWI_SDA_0_0_PIN, AVR32_TWI_SDA_0_0_FUNCTION},
{AVR32_TWI_SCL_0_0_PIN, AVR32_TWI_SCL_0_0_FUNCTION}
};
gpio_enable_module(TWI_GPIO_MAP, sizeof(TWI_GPIO_MAP) / sizeof(TWI_GPIO_MAP[0]));
// options settings
opt.pba_hz = FOSC0;
opt.speed = TWI_SPEED;
opt.chip = 0x50;
// initialize TWI driver with options
// status = twi_master_init(&AVR32_TWI, &opt);
status = twi_master_init(TWI, &opt);
/* // check init result
if (status == TWI_SUCCESS)
print_dbg("\r\ni2c init");
else
print_dbg("\r\ni2c init FAIL");
*/
}
void init_i2c_slave(void) {
twi_options_t opt;
twi_slave_fct_t twi_slave_fct;
int status;
static const gpio_map_t TWI_GPIO_MAP = {
{AVR32_TWI_SDA_0_0_PIN, AVR32_TWI_SDA_0_0_FUNCTION},
{AVR32_TWI_SCL_0_0_PIN, AVR32_TWI_SCL_0_0_FUNCTION}
};
gpio_enable_module(TWI_GPIO_MAP, sizeof(TWI_GPIO_MAP) / sizeof(TWI_GPIO_MAP[0]));
// options settings
opt.pba_hz = FOSC0;
opt.speed = TWI_SPEED;
opt.chip = 0x50;
// initialize TWI driver with options
twi_slave_fct.rx = &twi_slave_rx;
twi_slave_fct.tx = &twi_slave_tx;
twi_slave_fct.stop = &twi_slave_stop;
status = twi_slave_init(&AVR32_TWI, &opt, &twi_slave_fct );
/*
// check init result
if (status == TWI_SUCCESS)
print_dbg("\r\ni2c init");
else
print_dbg("\r\ni2c init FAIL");
*/
}
/**
* \brief Initializes the touch measurement timer.
*
* We need a timer that triggers approx. every millisecond.
* The touch library seems to need this as time-base.
*/
static void init_timer(void)
{
volatile avr32_tc_t *tc = TOUCH_MEASUREMENT_TC;
const tc_waveform_opt_t waveform_options = {
.channel = TOUCH_MEASUREMENT_TC_CHANNEL,
//! Software trigger effect on TIOB.
.bswtrg = TC_EVT_EFFECT_NOOP,
//! External event effect on TIOB.
.beevt = TC_EVT_EFFECT_NOOP,
//! RC compare effect on TIOB.
.bcpc = TC_EVT_EFFECT_NOOP,
//! RB compare effect on TIOB.
.bcpb = TC_EVT_EFFECT_NOOP,
//! Software trigger effect on TIOA.
.aswtrg = TC_EVT_EFFECT_NOOP,
//! External event effect on TIOA.
.aeevt = TC_EVT_EFFECT_NOOP,
//! RC compare effect on TIOA: toggle.
.acpc = TC_EVT_EFFECT_NOOP,
//! RA compare effect on TIOA: toggle.
.acpa = TC_EVT_EFFECT_NOOP,
//! Waveform selection
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,
//! External event trigger enable.
.enetrg = 0,
//! External event selection.
.eevt = 0,
//! External event edge selection.
.eevtedg = TC_SEL_NO_EDGE,
//! Counter disable when RC compare.
.cpcdis = 0,
//! Counter clock stopped with RC compare.
.cpcstop = 0,
//! Burst signal selection.
.burst = 0,
//! Clock inversion selection.
.clki = 0,
//! Internal source clock 3 (fPBA / 8).
.tcclks = TC_CLOCK_SOURCE_TC3
};
const tc_interrupt_t tc_interrupt = {
.etrgs = 0,
.ldrbs = 0,
.ldras = 0,
.cpcs = 1,
.cpbs = 0,
.cpas = 0,
.lovrs = 0,
.covfs = 0,
};
#if (defined __GNUC__)
Disable_global_interrupt();
INTC_register_interrupt(&tc_irq, TOUCH_MEASUREMENT_TC_IRQ,
AVR32_INTC_INT0);
Enable_global_interrupt();
#endif
/* initialize the timer/counter. */
sysclk_enable_peripheral_clock(&AVR32_TC1);
tc_init_waveform(tc, &waveform_options);
/* set the compare triggers. */
tc_write_rc(tc, TOUCH_MEASUREMENT_TC_CHANNEL,
(sysclk_get_pba_hz() / 8) / 1000);
tc_configure_interrupts(tc, TOUCH_MEASUREMENT_TC_CHANNEL,
&tc_interrupt);
tc_start(tc, TOUCH_MEASUREMENT_TC_CHANNEL);
}
/**
* \brief Initializes the touch library configuration.
*
* Sets the correct configuration for the QTouch library.
*/
static void qt_set_parameters(void)
{
/* This will be modified by the user to different values. */
qt_config_data.qt_di = DEF_QT_DI;
qt_config_data.qt_neg_drift_rate = DEF_QT_NEG_DRIFT_RATE;
qt_config_data.qt_pos_drift_rate = DEF_QT_POS_DRIFT_RATE;
qt_config_data.qt_max_on_duration = DEF_QT_MAX_ON_DURATION;
qt_config_data.qt_drift_hold_time = DEF_QT_DRIFT_HOLD_TIME;
qt_config_data.qt_recal_threshold = DEF_QT_RECAL_THRESHOLD;
qt_config_data.qt_pos_recal_delay = DEF_QT_POS_RECAL_DELAY;
/*
* This function is called after the library has made capacitive
* measurements, but before it has processed them. The user can use
* this hook to apply filter functions to the measured signal
* values. (Possibly to fix sensor layout faults).
*/
qt_filter_callback = NULL;
}
/**
* \brief Initialize touch sensors
*
* The touch channels are connected on the GPIO controller 4 which is a part of
* port X
*
* Touch Button:
* GPIO
* 98 SNSK1 CHANNEL1_SNS
* 99 SNS1 CHANNEL1_SNSK
*
* Touch Slider:
* 100 SNS0 CHANNEL2_SNS
* 101 SNSK0 CHANNEL2_SNSK
* 102 SNS1 CHANNEL3_SNS
* 103 SNSK1 CHANNEL3_SNSK
* 104 SNS2 CHANNEL4_SNS
* 105 SNSK2 CHANNEL4_SNSK
*/
void touch_init(void)
{
/*
* Reset sensing is only needed when doing re-initialization during
* run-time
*/
// qt_reset_sensing();
qt_enable_key(CHANNEL_1, NO_AKS_GROUP, 30u, HYST_12_5);
/*
* Position hysteresis is not used in QTouch slider so this value will
* be ignored
*/
qt_enable_slider(CHANNEL_2, CHANNEL_4, NO_AKS_GROUP, 20u, HYST_12_5,
RES_8_BIT, 0);
qt_init_sensing();
qt_set_parameters();
#ifdef _DEBUG_INTERFACE_
sysclk_enable_peripheral_clock(&AVR32_SPI0);
/* Initialize debug protocol */
QDebug_Init();
/* Process commands from PC */
QDebug_ProcessCommands();
#endif
init_timer();
}
void PWM_timer_init(void)
{
//MUST CHANGE BACK!!!!!
collective = 100;
yaw = 0;
pitch = 0;
roll = 0;
t_a = 0;
t_b = 0;
t_c = 0;
t_r = 0;
//Set up the GPIO pins for output of the timers
gpio_enable_module_pin(AVR32_TC1_A2_0_PIN, AVR32_TC1_A2_0_FUNCTION);
gpio_enable_module_pin(AVR32_TC1_B0_0_PIN, AVR32_TC1_B0_0_FUNCTION);
gpio_enable_module_pin(AVR32_TC1_B1_0_PIN, AVR32_TC1_B1_0_FUNCTION);
gpio_enable_module_pin(AVR32_TC0_B2_0_PIN, AVR32_TC0_B2_0_FUNCTION);
gpio_enable_module_pin(AVR32_TC0_B0_0_0_PIN, AVR32_TC0_B0_0_0_FUNCTION);
// Timer waveform options
const tc_waveform_opt_t waveform_options_b0_1 = {
//! Channel selection.
.channel = 0,
//! Software trigger effect on TIOB.
.bswtrg = TC_EVT_EFFECT_NOOP,
//! External event effect on TIOB.
.beevt = TC_EVT_EFFECT_NOOP,
//! RC compare effect on TIOB.
.bcpc = TC_EVT_EFFECT_CLEAR,
//! RB compare effect on TIOB.
.bcpb = TC_EVT_EFFECT_SET,
//! Software trigger effect on TIOA.
.aswtrg = TC_EVT_EFFECT_NOOP,
//! External event effect on TIOA.
.aeevt = TC_EVT_EFFECT_NOOP,
//! RC compare effect on TIOA.
.acpc = TC_EVT_EFFECT_NOOP,
//! RA compare effect on TIOA.
.acpa = TC_EVT_EFFECT_NOOP,
//! Waveform selection
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,
//! External event trigger enable.
.enetrg = false,
//! External event selection (non-zero for Channel B to work)
.eevt = !0,
//! External event edge selection.
.eevtedg = TC_SEL_NO_EDGE,
//! Counter disable when RC compare.
.cpcdis = false,
//! Counter clock stopped with RC compare.
.cpcstop = false,
//! Burst signal selection.
.burst = false,
//! Clock inversion selection.
.clki = false,
//! Internal source clock 5, fPBA/128.
.tcclks = TC_CLOCK_SOURCE_TC4,
};
const tc_waveform_opt_t waveform_options_b0_0 = {
//! Channel selection.
.channel = 0,
//! Software trigger effect on TIOB.
.bswtrg = TC_EVT_EFFECT_NOOP,
//! External event effect on TIOB.
.beevt = TC_EVT_EFFECT_NOOP,
//! RC compare effect on TIOB.
.bcpc = TC_EVT_EFFECT_CLEAR,
//! RB compare effect on TIOB.
.bcpb = TC_EVT_EFFECT_SET,
//! Software trigger effect on TIOA.
.aswtrg = TC_EVT_EFFECT_NOOP,
//! External event effect on TIOA.
.aeevt = TC_EVT_EFFECT_NOOP,
//! RC compare effect on TIOA.
.acpc = TC_EVT_EFFECT_NOOP,
//! RA compare effect on TIOA.
.acpa = TC_EVT_EFFECT_NOOP,
//! Waveform selection
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,
//! External event trigger enable.
.enetrg = false,
//! External event selection (non-zero for Channel B to work)
.eevt = !0,
//! External event edge selection.
.eevtedg = TC_SEL_NO_EDGE,
//! Counter disable when RC compare.
.cpcdis = false,
//! Counter clock stopped with RC compare.
.cpcstop = false,
//! Burst signal selection.
.burst = false,
//! Clock inversion selection.
.clki = false,
//! Internal source clock 5, fPBA/128.
.tcclks = TC_CLOCK_SOURCE_TC4,
};
const tc_waveform_opt_t waveform_options_b1 = {
//! Channel selection.
.channel = 1,
//! Software trigger effect on TIOB.
.bswtrg = TC_EVT_EFFECT_NOOP,
//! External event effect on TIOB.
.beevt = TC_EVT_EFFECT_NOOP,
//! RC compare effect on TIOB.
.bcpc = TC_EVT_EFFECT_CLEAR,
//! RB compare effect on TIOB.
.bcpb = TC_EVT_EFFECT_SET,
//! Software trigger effect on TIOA.
.aswtrg = TC_EVT_EFFECT_NOOP,
//! External event effect on TIOA.
.aeevt = TC_EVT_EFFECT_NOOP,
//! RC compare effect on TIOA.
.acpc = TC_EVT_EFFECT_NOOP,
//! RA compare effect on TIOA.
.acpa = TC_EVT_EFFECT_NOOP,
//! Waveform selection
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,
//! External event trigger enable.
.enetrg = false,
//! External event selection (non-zero for Channel B to work)
.eevt = !0,
//! External event edge selection.
.eevtedg = TC_SEL_NO_EDGE,
//! Counter disable when RC compare.
.cpcdis = false,
//! Counter clock stopped with RC compare.
.cpcstop = false,
//! Burst signal selection.
.burst = false,
//! Clock inversion selection.
.clki = false,
//! Internal source clock 5, fPBA/128.
.tcclks = TC_CLOCK_SOURCE_TC4,
};
const tc_waveform_opt_t waveform_options_b2 = {
//! Channel selection.
.channel = 2,
//! Software trigger effect on TIOB.
.bswtrg = TC_EVT_EFFECT_NOOP,
//! External event effect on TIOB.
.beevt = TC_EVT_EFFECT_NOOP,
//! RC compare effect on TIOB.
.bcpc = TC_EVT_EFFECT_CLEAR,
//! RB compare effect on TIOB.
.bcpb = TC_EVT_EFFECT_SET,
//! Software trigger effect on TIOA.
.aswtrg = TC_EVT_EFFECT_NOOP,
//! External event effect on TIOA.
.aeevt = TC_EVT_EFFECT_NOOP,
//! RC compare effect on TIOA.
.acpc = TC_EVT_EFFECT_CLEAR,
//! RA compare effect on TIOA.
.acpa = TC_EVT_EFFECT_SET,
//! Waveform selection
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,
//! External event trigger enable.
.enetrg = false,
//! External event selection (non-zero for Channel B to work)
.eevt = !0,
//! External event edge selection.
.eevtedg = TC_SEL_NO_EDGE,
//! Counter disable when RC compare.
.cpcdis = false,
//! Counter clock stopped with RC compare.
.cpcstop = false,
//! Burst signal selection.
.burst = false,
//! Clock inversion selection.
.clki = false,
//! Internal source clock 5, fPBA/128.
.tcclks = TC_CLOCK_SOURCE_TC4,
};
const tc_waveform_opt_t waveform_options_a2 = {
//! Channel selection.
.channel = 2,
//! Software trigger effect on TIOB.
.bswtrg = TC_EVT_EFFECT_NOOP,
//! External event effect on TIOB.
.beevt = TC_EVT_EFFECT_NOOP,
//! RC compare effect on TIOB.
.bcpc = TC_EVT_EFFECT_NOOP,
//! RB compare effect on TIOB.
.bcpb = TC_EVT_EFFECT_NOOP,
//! Software trigger effect on TIOA.
.aswtrg = TC_EVT_EFFECT_NOOP,
//! External event effect on TIOA.
.aeevt = TC_EVT_EFFECT_NOOP,
//! RC compare effect on TIOA.
.acpc = TC_EVT_EFFECT_CLEAR,
//! RA compare effect on TIOA.
.acpa = TC_EVT_EFFECT_SET,
//! Waveform selection
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,
//! External event trigger enable.
.enetrg = false,
//! External event selection (non-zero for Channel B to work)
.eevt = !0,
//! External event edge selection.
.eevtedg = TC_SEL_NO_EDGE,
//! Counter disable when RC compare.
.cpcdis = false,
//! Counter clock stopped with RC compare.
.cpcstop = false,
//! Burst signal selection.
.burst = false,
//! Clock inversion selection.
.clki = false,
//! Internal source clock 5, fPBA/128.
.tcclks = TC_CLOCK_SOURCE_TC4,
};
// Setup timer/counter waveform mode
sysclk_enable_peripheral_clock(&AVR32_TC0);
sysclk_enable_peripheral_clock(&AVR32_TC1);
tc_init_waveform(&AVR32_TC1, &waveform_options_b1);
tc_init_waveform(&AVR32_TC1, &waveform_options_b0_1);
tc_init_waveform(&AVR32_TC1, &waveform_options_a2);
tc_init_waveform(&AVR32_TC0, &waveform_options_b0_0);
tc_init_waveform(&AVR32_TC0, &waveform_options_b2);
tc_write_rb(&AVR32_TC1, 0, B_BASE);
tc_write_rc(&AVR32_TC1, 0, RC_VAL);
tc_write_rb(&AVR32_TC1, 1, R_BASE);
tc_write_rc(&AVR32_TC1, 1, RC_VAL);
tc_write_ra(&AVR32_TC1, 2, A_BASE);
tc_write_rc(&AVR32_TC1, 2, RC_VAL);
tc_write_rb(&AVR32_TC0, 0, M_BASE);
tc_write_rc(&AVR32_TC0, 0, RC_VAL);
tc_write_rb(&AVR32_TC0, 2, C_BASE);
tc_write_rc(&AVR32_TC0, 2, RC_VAL);
// Start the timer PWM channels
tc_start(&AVR32_TC1, 2);
tc_start(&AVR32_TC1, 0);
tc_start(&AVR32_TC1, 1);
tc_start(&AVR32_TC0, 0);
tc_start(&AVR32_TC0, 2);
}
void PWM_tester(char servo, int delay){
int initial_delay = 2000;
if(servo=='a'){
for(int i=0;i<=O_MAX;i++){
tc_write_ra(&AVR32_TC1, 2, A_BASE-i);
if(i==0) delay_ms(initial_delay);
else delay_ms(delay);
}
}
else if(servo=='b'){
for(int i=0;i<=O_MAX;i++){
tc_write_rb(&AVR32_TC1, 0, B_BASE+i);
if(i==0) delay_ms(initial_delay);
else delay_ms(delay);
}
}
else if(servo=='c'){
for(int i=0;i<=O_MAX;i++){
tc_write_rb(&AVR32_TC0, 2, C_BASE-i);
if(i==0) delay_ms(initial_delay);
else delay_ms(delay);
}
}
else if(servo=='r'){
for(int i=0;i<=R_MAX;i++){
tc_write_rb(&AVR32_TC1, 1, R_BASE+i);
if(i==0) delay_ms(initial_delay);
else delay_ms(delay);
}
}
else if(servo=='e'){
for(int i=0;i<O_MAX;i++){
tc_write_ra(&AVR32_TC1, 2, A_BASE-i);
tc_write_rb(&AVR32_TC1, 0, B_BASE+i);
tc_write_rb(&AVR32_TC0, 2, C_BASE-i);
if(i<R_MAX) tc_write_rb(&AVR32_TC1, 1, R_BASE+i);
//tc_write_rb(&AVR32_TC0, 0, 255);
if(i==0) delay_ms(3000);
else delay_ms(delay);
}
}
}
void PWM_update(void){
//gpio_toggle_pin(LED1_GPIO);
t_a = collective-pitch+roll;
t_b = collective-pitch-roll;
t_c = collective+pitch+pitch;
t_r = yaw+100;
//if(collective!=0 || yaw !=0 || pitch!=0 || roll !=0) gpio_toggle_pin(LED0_GPIO);
check_max_values();
tc_write_ra(&AVR32_TC1, 2, A_BASE-t_a);
tc_write_rb(&AVR32_TC1, 0, B_BASE+t_b);
tc_write_rb(&AVR32_TC0, 2, C_BASE-t_c);
tc_write_rb(&AVR32_TC1, 1, R_BASE+t_r);
}
void set_motor(char setting){
int level = (int) setting;
if(level>100) level = 100;
level = (int)(level * 3.75f);
tc_write_rb(&AVR32_TC0, 0, M_BASE - level);
motor = level;
}
int get_servo_dat(char servo){
switch(servo){
case 'a':
return t_a;
break;
case 'b':
return t_b;
break;
case 'c':
return t_c;
break;
case 'r':
return t_r;
break;
case 'o':
return collective;
break;
case 'y':
return yaw;
break;
case 'p':
return pitch;
break;
case 'l':
return roll;
break;
case 'm':
return motor;
break;
default:
return 0;
break;
}
}
void check_max_values(void){
if(t_a>=O_MAX) t_a = O_MAX;
else if(t_a<0) t_a = 0;
if(t_b>=O_MAX) t_b = O_MAX;
else if(t_b<0) t_b = 0;
if(t_c>=O_MAX) t_c = O_MAX;
else if(t_c<0) t_c = 0;
if(t_r>=R_MAX) t_r = R_MAX;
else if(t_r<0) t_r = 0;
}
void set_PWM_dat(int16_t* PWM_dat, char where){
/*
[0] = packet type
[1] = collective
[2] = yaw
[3] = pitch
[4] = roll
*/
//gpio_toggle_pin(LED2_GPIO);
switch (where){
case 'm':
collective = (int8_t)PWM_dat[1];
yaw = (int8_t)PWM_dat[2];
pitch = (int8_t)PWM_dat[3];
roll = (int8_t)PWM_dat[4];
break;
default:
collective = PWM_dat[0];
yaw = PWM_dat[1];
pitch = PWM_dat[2];
roll = PWM_dat[3];
break;
}
check_orientation_values();
}
void check_orientation_values(void){
if(pitch>MAX_PITCH) pitch = MAX_PITCH;
else if(pitch<-MAX_PITCH) pitch = -MAX_PITCH;
if(roll>MAX_ROLL) roll = MAX_ROLL;
else if(roll<-MAX_ROLL) roll = -MAX_ROLL;
if(yaw>MAX_YAW) yaw = MAX_YAW;
else if(yaw<-MAX_YAW) yaw = -MAX_YAW;
}
/* Setup the timer to generate the tick interrupts. */
static void prvSetupTimerInterrupt(void)
{
#if( configTICK_USE_TC==1 )
volatile avr32_tc_t *tc = &AVR32_TC;
// Options for waveform genration.
tc_waveform_opt_t waveform_opt =
{
.channel = configTICK_TC_CHANNEL, /* Channel selection. */
.bswtrg = TC_EVT_EFFECT_NOOP, /* Software trigger effect on TIOB. */
.beevt = TC_EVT_EFFECT_NOOP, /* External event effect on TIOB. */
.bcpc = TC_EVT_EFFECT_NOOP, /* RC compare effect on TIOB. */
.bcpb = TC_EVT_EFFECT_NOOP, /* RB compare effect on TIOB. */
.aswtrg = TC_EVT_EFFECT_NOOP, /* Software trigger effect on TIOA. */
.aeevt = TC_EVT_EFFECT_NOOP, /* External event effect on TIOA. */
.acpc = TC_EVT_EFFECT_NOOP, /* RC compare effect on TIOA: toggle. */
.acpa = TC_EVT_EFFECT_NOOP, /* RA compare effect on TIOA: toggle (other possibilities are none, set and clear). */
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,/* Waveform selection: Up mode without automatic trigger on RC compare. */
.enetrg = FALSE, /* External event trigger enable. */
.eevt = 0, /* External event selection. */
.eevtedg = TC_SEL_NO_EDGE, /* External event edge selection. */
.cpcdis = FALSE, /* Counter disable when RC compare. */
.cpcstop = FALSE, /* Counter clock stopped with RC compare. */
.burst = FALSE, /* Burst signal selection. */
.clki = FALSE, /* Clock inversion. */
.tcclks = TC_CLOCK_SOURCE_TC2 /* Internal source clock 2. */
};
tc_interrupt_t tc_interrupt =
{
.etrgs=0,
.ldrbs=0,
.ldras=0,
.cpcs =1,
.cpbs =0,
.cpas =0,
.lovrs=0,
.covfs=0,
};
#endif
/* Disable all interrupt/exception. */
portDISABLE_INTERRUPTS();
/* Register the compare interrupt handler to the interrupt controller and
enable the compare interrupt. */
#if( configTICK_USE_TC==1 )
{
INTC_register_interrupt(&vTick, configTICK_TC_IRQ, INT0);
/* Initialize the timer/counter. */
tc_init_waveform(tc, &waveform_opt);
/* Set the compare triggers.
Remember TC counter is 16-bits, so counting second is not possible!
That's why we configure it to count ms. */
tc_write_rc( tc, configTICK_TC_CHANNEL, ( configPBA_CLOCK_HZ / 4) / configTICK_RATE_HZ );
tc_configure_interrupts( tc, configTICK_TC_CHANNEL, &tc_interrupt );
/* Start the timer/counter. */
tc_start(tc, configTICK_TC_CHANNEL);
}
#else
{
INTC_register_interrupt(&vTick, AVR32_CORE_COMPARE_IRQ, INT0);
prvScheduleFirstTick();
}
#endif
}
/*! \brief to initialiaze hw timer
*/
uint8_t tmr_init(void)
{
uint8_t timer_multiplier;
/* Options for waveform generation. */
tc_waveform_opt_t waveform_opt = {
.channel = TIMER_CHANNEL_ID, /* Channel selection. */
.bswtrg = TC_EVT_EFFECT_NOOP, /* Software trigger effect
* on TIOB. */
.beevt = TC_EVT_EFFECT_NOOP, /* External event effect
* on TIOB. */
.bcpc = TC_EVT_EFFECT_NOOP, /* RC compare effect on
* TIOB. */
.bcpb = TC_EVT_EFFECT_NOOP, /* RB compare effect on
* TIOB. */
.aswtrg = TC_EVT_EFFECT_NOOP, /* Software trigger effect
* on TIOA. */
.aeevt = TC_EVT_EFFECT_NOOP, /* External event effect
* on TIOA. */
.acpc = TC_EVT_EFFECT_NOOP, /* RC compare effect on
* TIOA */
.acpa = TC_EVT_EFFECT_NOOP, /* RA compare effect on
* TIOA */
.wavsel = TC_WAVEFORM_SEL_UP_MODE, /* Waveform selection: Up
* mode without automatic
* trigger on RC compare.
**/
.enetrg = false, /* External event trigger
* enable. */
.eevt = TC_EXT_EVENT_SEL_TIOB_INPUT, /* External event
* selection. */
.eevtedg = TC_SEL_NO_EDGE, /* External event edge
* selection. */
.cpcdis = false, /* Counter disable when RC
* compare. */
.cpcstop = false, /* Counter clock stopped
* with RC compare. */
.burst = TC_BURST_NOT_GATED, /* Burst signal selection.
**/
.clki = TC_CLOCK_RISING_EDGE, /* Clock inversion. */
.tcclks = TC_CLOCK_SOURCE_TC2 /* Internal source clock
* 3, connected to fPBA /
* 8. */
};
sysclk_enable_peripheral_clock(TIMER);
/* Initialize the timer/counter. */
tc_init_waveform(TIMER, &waveform_opt);
/* calculate how faster the timer with current clk freq compared to
* timer with 1Mhz */
timer_multiplier = sysclk_get_peripheral_bus_hz(TIMER) / DEF_1MHZ;
/* */
timer_multiplier = timer_multiplier >> 1;
configure_irq_handler();
tmr_enable_ovf_interrupt();
tmr_disable_cc_interrupt();
tc_start(TIMER, TIMER_CHANNEL_ID);
return timer_multiplier;
}
/*! \brief to disable compare interrupt
*/
void tmr_disable_cc_interrupt(void)
{
tc_interrupt.cpcs = 0;
tc_configure_interrupts(TIMER, TIMER_CHANNEL_ID, &tc_interrupt);
}
int main(void)
{
//-------------------------USART INTERRUPT REGISTRATION.------------//
// Set Clock: Oscillator needs to initialized once: First
pcl_switch_to_osc(PCL_OSC0, FOSC0, OSC0_STARTUP);
// -------------- USART INIT -----------------------------------------------
static const gpio_map_t USART_GPIO_MAP =
{
{AVR32_USART0_RXD_0_0_PIN, AVR32_USART0_RXD_0_0_FUNCTION},
{AVR32_USART0_TXD_0_0_PIN, AVR32_USART0_TXD_0_0_FUNCTION}
};
// USART options.
static const usart_options_t USART_OPTIONS =
{
.baudrate = USART_BAUDRATE,
.charlength = 8,
.paritytype = USART_NO_PARITY,
.stopbits = USART_1_STOPBIT,
.channelmode = USART_NORMAL_CHMODE
};
// Assign GPIO to USART
gpio_enable_module(USART_GPIO_MAP, sizeof(USART_GPIO_MAP) / sizeof(USART_GPIO_MAP[0]));
// Init USART
usart_init_rs232(USART_0, &USART_OPTIONS, FOSC0);
Disable_global_interrupt();
INTC_init_interrupts(); // Init Interrupt Table: Once at first
// Register USART Interrupt (hinzufügen)
INTC_register_interrupt(&usart_int_handler, AVR32_USART0_IRQ, AVR32_INTC_INT0);
USART_0->ier = AVR32_USART_IER_RXRDY_MASK; // Activate ISR on RX Line
Enable_global_interrupt();
// -----------------------------------------------------------------------------------
// -------------------------- Display INIT ----------------------------------
// Map SPI Pins
static const gpio_map_t DIP204_SPI_GPIO_MAP =
{
{DIP204_SPI_SCK_PIN, DIP204_SPI_SCK_FUNCTION }, // SPI Clock.
{DIP204_SPI_MISO_PIN, DIP204_SPI_MISO_FUNCTION}, // MISO.
{DIP204_SPI_MOSI_PIN, DIP204_SPI_MOSI_FUNCTION}, // MOSI.
{DIP204_SPI_NPCS_PIN, DIP204_SPI_NPCS_FUNCTION} // Chip Select NPCS.
};
// add the spi options driver structure for the LCD DIP204
spi_options_t spiOptions =
{
.reg = DIP204_SPI_NPCS,
.baudrate = 1000000,
.bits = 8,
.spck_delay = 0,
.trans_delay = 0,
.stay_act = 1,
.spi_mode = 0,
.modfdis = 1
};
// SPI Inits: Assign I/Os to SPI
gpio_enable_module(DIP204_SPI_GPIO_MAP,
sizeof(DIP204_SPI_GPIO_MAP) / sizeof(DIP204_SPI_GPIO_MAP[0]));
// Initialize as master
spi_initMaster(DIP204_SPI, &spiOptions);
// Set selection mode: variable_ps, pcs_decode, delay
spi_selectionMode(DIP204_SPI, 0, 0, 0);
// Enable SPI
spi_enable(DIP204_SPI);
// setup chip registers
spi_setupChipReg(DIP204_SPI, &spiOptions, FOSC0);
// initialize delay driver: Muss vor dip204_init() ausgeführt werden
delay_init( FOSC0 );
// initialize LCD
dip204_init(backlight_PWM, TRUE);
// ---------------------------------------------------------------------------------------
// ----------------- Timer Counter Init ---------------------------------
// Timer Configs: Options for waveform generation.
static const tc_waveform_opt_t WAVEFORM_OPT =
{
.channel = TC_CHANNEL, // Channel selection.
.bswtrg = TC_EVT_EFFECT_NOOP, // Software trigger effect on TIOB.
.beevt = TC_EVT_EFFECT_NOOP, // External event effect on TIOB.
.bcpc = TC_EVT_EFFECT_NOOP, // RC compare effect on TIOB.
.bcpb = TC_EVT_EFFECT_NOOP, // RB compare effect on TIOB.
.aswtrg = TC_EVT_EFFECT_NOOP, // Software trigger effect on TIOA.
.aeevt = TC_EVT_EFFECT_NOOP, // External event effect on TIOA.
.acpc = TC_EVT_EFFECT_NOOP, // RC compare effect on TIOA: toggle.
.acpa = TC_EVT_EFFECT_NOOP, // RA compare effect on TIOA: toggle
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,// Count till RC and reset (S. 649): Waveform selection
.enetrg = FALSE, // External event trigger enable.
.eevt = 0, // External event selection.
.eevtedg = TC_SEL_NO_EDGE, // External event edge selection.
.cpcdis = FALSE, // Counter disable when RC compare.
.cpcstop = FALSE, // Counter clock stopped with RC compare.
.burst = FALSE, // Burst signal selection.
.clki = FALSE, // Clock inversion.
.tcclks = TC_CLOCK_SOURCE_TC3 // Internal source clock 3, connected to fPBA / 8.
};
// TC Interrupt Enable Register
static const tc_interrupt_t TC_INTERRUPT =
{ .etrgs = 0, .ldrbs = 0, .ldras = 0, .cpcs = 1, .cpbs = 0, .cpas = 0, .lovrs = 0, .covfs = 0
};
// 0 = No Effect | 1 = Enable ( CPCS = 1 enables the RC Compare Interrupt )
// ***************** Timer Setup ***********************************************
// Initialize the timer/counter.
tc_init_waveform(tc, &WAVEFORM_OPT); // Initialize the timer/counter waveform.
// Set the compare triggers.
tc_write_rc(tc, TC_CHANNEL, RC); // Set RC value.
tc_configure_interrupts(tc, TC_CHANNEL, &TC_INTERRUPT);
// Start the timer/counter.
tc_start(tc, TC_CHANNEL); // And start the timer/counter.
// *******************************************************************************
Disable_global_interrupt();
// Register TC Interrupt
INTC_register_interrupt(&tc_irq, AVR32_TC_IRQ0, AVR32_INTC_INT3);
Enable_global_interrupt();
// ---------------------------------------------------------------------------------------
imu_init();
//-------------------------------TWI R/W ---------------------------------------------------
sensorDaten imu_data = {0};
char disp1[30], disp2[30], disp3[30], disp4[30];
short GX,GY,GZ, AX, AY, AZ; //shifted comlete Data
RPY currMoveRPY;
Quaternion currQuat;
currQuat.q0 = 1.0;
currQuat.q1 = 0;
currQuat.q2 = 0;
currQuat.q3 = 0;
Quaternion deltaQuat;
RotMatrix rot = {0};
RPY reconverted;
calibrate_all(&imu_data);
while(1){
if(exe){
exe = false;
read_sensor(&imu_data);
AX = imu_data.acc_x + imu_data.acc_x_bias;
AY = imu_data.acc_y + imu_data.acc_y_bias;
AZ = imu_data.acc_z + imu_data.acc_z_bias;
GX = imu_data.gyro_x + imu_data.gyro_x_bias;
GY = imu_data.gyro_y + imu_data.gyro_y_bias;
GZ = imu_data.gyro_z + imu_data.gyro_z_bias;
//convert to 1G
float ax = (float)AX * (-4.0);
float ay = (float)AY * (-4.0); //wegen 2^11= 2048, /2 = 1024 entspricht 4G -> 1G = (1024/4)
float az = (float)AZ * (-4.0);
//convert to 1°/s
gx = ((float)GX/ 14.375); // in °/s
gy = ((float)GY/ 14.375);
gz = ((float)GZ/ 14.375);
//Integration over time
dGx = (gx*0.03);
dGy = (gy*0.03);
dGz = (gz*0.03);
currMoveRPY.pitch = -dGx;
currMoveRPY.roll = dGy;
currMoveRPY.yaw = dGz;
//aufaddieren auf den aktuellen Winkel IN GRAD
gxDeg += dGx;
gyDeg += dGy;
gzDeg += dGz;
//RPY in Quaternion umwandeln
RPYtoQuat(&deltaQuat, &currMoveRPY);
//normieren
normQuat(&deltaQuat);
//aufmultiplizeiren
quatMultiplication(&deltaQuat, &currQuat, &currQuat);
//nochmal normieren
normQuat(&currQuat);
//rücktransformation nicht nötig!!
char send[80];
sprintf(send,"$,%f,%f,%f,%f,#", currQuat.q0, currQuat.q1, currQuat.q2, currQuat.q3);
usart_write_line(USART_0,send);
sprintf(disp1,"q0:%.3f, GX:%3.0f",currQuat.q0,gxDeg);
sprintf(disp2,"q1:%.3f, GY:%3.0f",currQuat.q1, gyDeg);
sprintf(disp3,"q2:%.3f, GZ:%3.0f",currQuat.q2, gzDeg);
sprintf(disp4,"q3:%.3f",currQuat.q3);
dip204_clear_display();
dip204_set_cursor_position(1,1);
dip204_write_string(disp1);
dip204_set_cursor_position(1,2);
dip204_write_string(disp2);
dip204_set_cursor_position(1,3);
dip204_write_string(disp3);
dip204_set_cursor_position(1,4);
dip204_write_string(disp4);
//sprintf(data,"TEST:%s",high);
//print_dbg(data);
}
}
}
int main(void)
{
U32 i;
volatile avr32_tc_t *tc = EXAMPLE_TC;
// Configuration du peripherique TC
static const tc_waveform_opt_t WAVEFORM_OPT =
{
.channel = TC_CHANNEL, // Channel selection.
.bswtrg = TC_EVT_EFFECT_NOOP, // Software trigger effect on TIOB.
.beevt = TC_EVT_EFFECT_NOOP, // External event effect on TIOB.
.bcpc = TC_EVT_EFFECT_NOOP, // RC compare effect on TIOB.
.bcpb = TC_EVT_EFFECT_NOOP, // RB compare effect on TIOB.
.aswtrg = TC_EVT_EFFECT_NOOP, // Software trigger effect on TIOA.
.aeevt = TC_EVT_EFFECT_NOOP, // External event effect on TIOA.
.acpc = TC_EVT_EFFECT_NOOP, // RC compare effect on TIOA: toggle.
.acpa = TC_EVT_EFFECT_NOOP, // RA compare effect on TIOA: toggle
.wavsel = TC_WAVEFORM_SEL_UP_MODE_RC_TRIGGER,// Waveform selection: Up mode with automatic trigger(reset) on RC compare.
.enetrg = FALSE, // External event trigger enable.
.eevt = 0, // External event selection.
.eevtedg = TC_SEL_NO_EDGE, // External event edge selection.
.cpcdis = FALSE, // Counter disable when RC compare.
.cpcstop = FALSE, // Counter clock stopped with RC compare.
.burst = FALSE, // Burst signal selection.
.clki = FALSE, // Clock inversion.
.tcclks = TC_CLOCK_SOURCE_TC4 // Internal source clock 3, connected to fPBA / 8.
};
static const tc_interrupt_t TC_INTERRUPT =
{
.etrgs = 0,
.ldrbs = 0,
.ldras = 0,
.cpcs = 1,
.cpbs = 0,
.cpas = 0,
.lovrs = 0,
.covfs = 0
};
/*! \brief Main function:
* - Configure the CPU to run at 12MHz
* - Register the TC interrupt (GCC only)
* - Configure, enable the CPCS (RC compare match) interrupt, and start a TC channel in waveform mode
* - In an infinite loop, do nothing
*/
/* Au reset, le microcontroleur opere sur un crystal interne a 115200Hz. */
/* Nous allons le configurer pour utiliser un crystal externe, FOSC0, a 12Mhz. */
pcl_switch_to_osc(PCL_OSC0, FOSC0, OSC0_STARTUP);
Disable_global_interrupt(); // Desactive les interrupts le temps de la config
INTC_init_interrupts(); // Initialise les vecteurs d'interrupt
// Enregistrement de la nouvelle IRQ du TIMER au Interrupt Controller .
INTC_register_interrupt(&tc_irq, EXAMPLE_TC_IRQ, AVR32_INTC_INT0);
Enable_global_interrupt(); // Active les interrupts
tc_init_waveform(tc, &WAVEFORM_OPT); // Initialize the timer/counter waveform.
// Placons le niveau RC a atteindre pour declencher de l'IRQ.
// Attention, RC est un 16-bits, valeur max 65535
// We want: (1/(fPBA/32)) * RC = 0.100 s, donc RC = (fPBA/32) / 10 to get an interrupt every 100 ms.
tc_write_rc(tc, TC_CHANNEL, (FPBA / 32) / 10); // Set RC value.
tc_configure_interrupts(tc, TC_CHANNEL, &TC_INTERRUPT);
// Start the timer/counter.
tc_start(tc, TC_CHANNEL); // And start the timer/counter.
while(1) // Boucle inifinie a vide !
{
i++;
}
}