/*! \brief This is an example showing how to toggle a GPIO pin at high speed.
*/
int main(void)
{
// Initialize domain clocks (CPU, HSB, PBA and PBB) to the max frequency available
// without flash wait states.
// Some of the registers in the GPIO module are mapped onto the CPU local bus.
// To ensure maximum transfer speed and cycle determinism, any slaves being
// addressed by the CPU on the local bus must be able to receive and transmit
// data on the bus at CPU clock speeds. The consequences of this is that the
// GPIO module has to run at the CPU clock frequency when local bus transfers
// are being performed => we want fPBA = fCPU.
clockfrequencies_configure();
// initialize hmatrix bus
init_hmatrix();
// Enable the local bus interface for GPIO.
gpio_local_init();
// Enable the output driver of the example pin.
// Note that the GPIO mode of pins is enabled by default after reset.
gpio_local_enable_pin_output_driver(GPIO_PIN_EXAMPLE);
// Toggle the example GPIO pin at high speed in a loop.
while (1)
{
// Explicit loop unrolling allowing consecutive ST.W instructions without
// loop overhead if compiler optimization is activated, except every 128
// ST.W for the while loop.
#define INSERT_GPIO_LOCAL_TGL_GPIO_PIN(idx, pin) \
gpio_local_tgl_gpio_pin(pin);
MREPEAT(128, INSERT_GPIO_LOCAL_TGL_GPIO_PIN, GPIO_PIN_EXAMPLE)
#undef INSERT_GPIO_LOCAL_TGL_GPIO_PIN
}
}
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;
}