/**
* @brief main routine for timer example
* @return Function should not exit.
*/
int main(void)
{
uint32_t timerBaseClock;
SystemCoreClockUpdate();
Board_Init();
Board_LED_Set(0, false);
Board_LED_Set(1, false);
/* Initialize Timer 0 and Timer 1 */
Chip_TIMER_Init(LPC_TIMER0);
Chip_TIMER_Init(LPC_TIMER1);
/* Setup prescale value on Timer 0 to PCLK */
Chip_TIMER_PrescaleSet(LPC_TIMER0, 0);
/* Setup prescale value on Timer 1 for lower resolution */
Chip_TIMER_PrescaleSet(LPC_TIMER1, PRESCALE_HZ2);
/* Reset timers */
Chip_TIMER_Reset(LPC_TIMER0);
Chip_TIMER_Reset(LPC_TIMER1);
/* Enable both timers to generate interrupts when time matches */
Chip_TIMER_MatchEnableInt(LPC_TIMER0, 1);
Chip_TIMER_MatchEnableInt(LPC_TIMER1, 1);
/* Get rate of timer base clock */
timerBaseClock = Chip_Clock_GetAsyncSyscon_ClockRate();
/* Setup Timer 0 for a match every 1s */
Chip_TIMER_SetMatch(LPC_TIMER0, 1, (timerBaseClock / TICKRATE_HZ1));
/* Setup Timer 1 for a match twice in a second */
Chip_TIMER_SetMatch(LPC_TIMER1, 1, (timerBaseClock / ((PRESCALE_HZ2 + 1) * TICKRATE_HZ2)) );
/* Setup both timers to restart when match occurs */
Chip_TIMER_ResetOnMatchEnable(LPC_TIMER0, 1);
Chip_TIMER_ResetOnMatchEnable(LPC_TIMER1, 1);
/* Start both timers */
Chip_TIMER_Enable(LPC_TIMER0);
Chip_TIMER_Enable(LPC_TIMER1);
/* Clear both timers of any pending interrupts */
NVIC_ClearPendingIRQ(CT32B0_IRQn);
NVIC_ClearPendingIRQ(CT32B1_IRQn);
/* Enable both timer interrupts */
NVIC_EnableIRQ(CT32B0_IRQn);
NVIC_EnableIRQ(CT32B1_IRQn);
/* Wait for timers to generate interrupts (LEDs toggle in interrupt handlers) */
while (1) {
__WFI();
}
return 0;
}
static void initHardware(void)
{
SystemCoreClockUpdate();
SysTick_Config(SystemCoreClock/1000);
Board_Init();
Board_LED_Set(0, false);
/* Timer */
Chip_TIMER_Init(LPC_TIMER1);
Chip_TIMER_PrescaleSet(LPC_TIMER1,
#ifdef lpc1769
Chip_Clock_GetPeripheralClockRate(SYSCTL_PCLK_TIMER1) / 1000000 - 1
#else
Chip_Clock_GetRate(CLK_MX_TIMER1) / 1000000 - 1
#endif
);
/* Match 0 (period) */
Chip_TIMER_MatchEnableInt(LPC_TIMER1, 0);
Chip_TIMER_ResetOnMatchEnable(LPC_TIMER1, 0);
Chip_TIMER_StopOnMatchDisable(LPC_TIMER1, 0);
Chip_TIMER_SetMatch(LPC_TIMER1, 0, 1000);
/* Match 1 (duty) */
Chip_TIMER_MatchEnableInt(LPC_TIMER1, 1);
Chip_TIMER_ResetOnMatchDisable(LPC_TIMER1, 1);
Chip_TIMER_StopOnMatchDisable(LPC_TIMER1, 1);
Chip_TIMER_SetMatch(LPC_TIMER1, 1, 100);
Chip_TIMER_Reset(LPC_TIMER1);
Chip_TIMER_Enable(LPC_TIMER1);
NVIC_EnableIRQ(TIMER1_IRQn);
}
void AVALON_PWM_Init(void)
{
/* System CLK 48MHz */
Chip_TIMER_Init(LPC_TIMER16_0);
Chip_TIMER_Disable(LPC_TIMER16_0);
/* CT16B0_MAT0/CT16B0_MAT1/CT16B0_MAT2 Init */
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 8, IOCON_FUNC2 | IOCON_MODE_INACT);
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 9, IOCON_FUNC2 | IOCON_MODE_INACT);
Chip_IOCON_PinMuxSet(LPC_IOCON, 1, 15, IOCON_FUNC2 | IOCON_MODE_INACT);
/* CT16B0_MAT0 duty:50% */
Chip_TIMER_ExtMatchControlSet(LPC_TIMER16_0, 1, TIMER_EXTMATCH_TOGGLE, 0);
Chip_TIMER_SetMatch(LPC_TIMER16_0, 0, DUTY_50);
/* CT16B0_MAT1 duty:25% */
Chip_TIMER_ExtMatchControlSet(LPC_TIMER16_0, 1, TIMER_EXTMATCH_TOGGLE, 1);
Chip_TIMER_SetMatch(LPC_TIMER16_0, 1, DUTY_25);
/* CT16B0_MAT2 duty:10% */
Chip_TIMER_ExtMatchControlSet(LPC_TIMER16_0, 1, TIMER_EXTMATCH_TOGGLE, 2);
Chip_TIMER_SetMatch(LPC_TIMER16_0, 2, DUTY_10);
/* Prescale 0 */
Chip_TIMER_PrescaleSet(LPC_TIMER16_0, 0);
/* PWM Period 800Hz */
Chip_TIMER_SetMatch(LPC_TIMER16_0, 3, DUTY_100);
Chip_TIMER_ResetOnMatchEnable(LPC_TIMER16_0, 3);
/* CT16B0_MAT0/CT16B0_MAT1/CT16B0_MAT2 Enable */
LPC_TIMER16_0->PWMC = 0x7;//pwm
Chip_TIMER_Enable(LPC_TIMER16_0);
}
void init_runtime_stats_timer( void )
{
Chip_TIMER_Init(LPC_TIMER3);
Chip_TIMER_Reset(LPC_TIMER3);
Chip_Clock_SetPCLKDiv(SYSCTL_PCLK_TIMER3, SYSCTL_CLKDIV_1);
Chip_TIMER_PrescaleSet(LPC_TIMER3, 3200);
Chip_TIMER_Enable(LPC_TIMER3);
}
uint32_t PWMSetPeriod(uint8_t channel, uint32_t period) {
if (channel > CHANNEL_C_TIMER_INDEX) {
return 1;
}
if (eDVSMode != EDVS_MODE_INTERNAL && channel == 0) {
return 1; // channel 0 taken for master/slave mode
}
LPC_TIMER_T * timer = halTimers[channel].timer;
halTimers[channel].period = period;
/**
* If the period equal 0, the timer is disable and its outputs are set as GPIO and driven low.
*/
if (period == 0) {
Chip_TIMER_DeInit(timer); //Stop the timer
Chip_TIMER_SetMatch(timer, 2, 0);
halTimers[channel].enabled[0] = DISABLE;
halTimers[channel].enabled[1] = DISABLE;
Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, halTimers[channel].portGpio[0], halTimers[channel].pinGpio[0]);
Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, halTimers[channel].portGpio[1], halTimers[channel].pinGpio[1]);
Chip_GPIO_SetPinOutLow(LPC_GPIO_PORT, halTimers[channel].portGpio[0], halTimers[channel].pinGpio[0]);
Chip_GPIO_SetPinOutLow(LPC_GPIO_PORT, halTimers[channel].portGpio[1], halTimers[channel].pinGpio[1]);
Chip_SCU_PinMuxSet(halTimers[channel].port[0], halTimers[channel].pin[0], halTimers[channel].gpioMode[0]);
Chip_SCU_PinMuxSet(halTimers[channel].port[1], halTimers[channel].pin[1], halTimers[channel].gpioMode[1]);
} else {
/**
* The channel match 2 is used as the controller of the base frequency.
* When there is a match on this channel, the timer is reset and the external match bit
* is set to 1.
* The M0 core is looking for this change and it sets the output of the channels to high.
*/
Chip_TIMER_Init(timer);
Chip_TIMER_Disable(timer);
Chip_TIMER_Reset(timer);
/**
* The Main clock is running at 192Mhz so set the Prescaler in order to have
* a 1 Mhz timer. Timer_CLK = Main_CLK/ (PR+1)
*/
Chip_TIMER_PrescaleSet(timer, 191);
Chip_TIMER_ResetOnMatchEnable(timer, 2);
Chip_TIMER_StopOnMatchDisable(timer, 2);
Chip_TIMER_MatchDisableInt(timer, 2);
Chip_TIMER_SetMatch(timer, 2, period);
//Reconfigure match channels!
if (halTimers[channel].enabled[0]) {
PWMSetWidth(channel, 0, halTimers[channel].witdh[0]);
}
if (halTimers[channel].enabled[1]) {
PWMSetWidth(channel, 1, halTimers[channel].witdh[1]);
}
Chip_TIMER_ExtMatchControlSet(timer, 0, TIMER_EXTMATCH_SET, 2);
// Clear interrupt pending
timer->IR = 0xFFFFFFFF;
Chip_TIMER_Enable(timer);
}
return 0;
}
/* Initialize stopwatch */
void StopWatch_Init(void)
{
/* Use timer 1. Set prescaler to divide by 8 */
const uint32_t prescaleDivisor = 8;
Chip_TIMER_Init(LPC_TIMER32_1);
Chip_TIMER_PrescaleSet(LPC_TIMER32_1, prescaleDivisor - 1);
Chip_TIMER_Enable(LPC_TIMER32_1);
/* Pre-compute tick rate. */
ticksPerSecond = Chip_Clock_GetAsyncSysconClockRate() / prescaleDivisor;
ticksPerMs = ticksPerSecond / 1000;
ticksPerUs = ticksPerSecond / 1000000;
}
void setup() {
const uint32 system_clock_hz = Chip_Clock_GetSystemClockRate();
const uint32 prescale = system_clock_hz / 1000000;
Chip_TIMER_Init(SYS_CLOCK_TIMER32);
// Set prescaler for 1 usec/count.
Chip_TIMER_PrescaleSet(SYS_CLOCK_TIMER32, prescale - 1);
// Reset count
Chip_TIMER_Reset(SYS_CLOCK_TIMER32);
// Start counting.
Chip_TIMER_Enable(SYS_CLOCK_TIMER32);
}
void AVALON_PWM_Enable(void)
{
/* Prescale 0 */
Chip_TIMER_PrescaleSet(LPC_TIMER16_0, 0);
/* PWM Period 800Hz */
Chip_TIMER_SetMatch(LPC_TIMER16_0, 3, DUTY_100);
Chip_TIMER_ResetOnMatchEnable(LPC_TIMER16_0, 3);
/* CT16B0_MAT0/CT16B0_MAT1/CT16B0_MAT2 Enable */
LPC_TIMER16_0->PWMC = 0x7;
Chip_TIMER_Enable(LPC_TIMER16_0);
}
/** Configures the board hardware and chip peripherals for the demo's functionality. */
static void SetupHardware(void)
{
Board_Init();
USB_Init(FlashDisk_MS_Interface.Config.PortNumber, USB_MODE_Host);
/* Hardware Initialization */
Board_Debug_Init();
/* Create a stdio stream for the serial port for stdin and stdout */
Serial_CreateStream(NULL);
Chip_TIMER_Init(RUNTIME_TIMER);
//Chip_TIMER_TIMER_SetCountClockSrc(RUNTIME_TIMER, TIMER_CAPSRC_RISING_PCLK, 0);
Chip_TIMER_PrescaleSet(RUNTIME_TIMER, 0);
}
/* Initialize stopwatch */
void StopWatch_Init(void)
{
/* Use timer 1. Set prescaler to divide by 8, should give ticks at 3.75 MHz.
That gives a useable stopwatch measurement range of about 19 minutes
(if system clock is running at 120 MHz). */
const uint32_t prescaleDivisor = 8;
Chip_TIMER_Init(LPC_TIMER1);
Chip_TIMER_PrescaleSet(LPC_TIMER1, prescaleDivisor - 1);
Chip_TIMER_Enable(LPC_TIMER1);
/* Pre-compute tick rate. Note that peripheral clock supplied to the
timer includes a fixed divide by 4. */
ticksPerSecond = Chip_Clock_GetSystemClockRate() / prescaleDivisor / 4;
ticksPerMs = ticksPerSecond / 1000;
ticksPerUs = ticksPerSecond / 1000000;
}
void setupTimer(void)
{
Chip_IOCON_PinMux(LPC_IOCON, 1, 28, 2, 3);
Chip_GPIO_SetPinDIROutput(LPC_GPIO, 1, 28);
Chip_TIMER_Init(LPC_TIMER0);
Chip_TIMER_Reset(LPC_TIMER0);
Chip_TIMER_PrescaleSet(LPC_TIMER0, 500);
Chip_TIMER_SetMatch(LPC_TIMER0, 0, 16000);
Chip_TIMER_ResetOnMatchEnable(LPC_TIMER0, 0);
// Chip_TIMER_MatchEnableInt(LPC_TIMER0, 0);
Chip_TIMER_ExtMatchControlSet(LPC_TIMER0, RESET, TIMER_EXTMATCH_TOGGLE, 0);
Chip_TIMER_Enable(LPC_TIMER0);
// NVIC_ClearPendingIRQ(TIMER0_IRQn);
// NVIC_EnableIRQ(TIMER0_IRQn);
}
void
call_init (void)
{
transmit_call = false;
Chip_TIMER_Init (LPC_TIMER32_0);
Chip_TIMER_Reset (LPC_TIMER32_0);
Chip_TIMER_MatchEnableInt (LPC_TIMER32_0, 0);
Chip_TIMER_PrescaleSet (LPC_TIMER32_0, Chip_Clock_GetSystemClockRate ());
Chip_TIMER_SetMatch (LPC_TIMER32_0, 0, CALL_INTERVAL_SEC);
Chip_TIMER_ResetOnMatchEnable (LPC_TIMER32_0, 0);
Chip_TIMER_Enable (LPC_TIMER32_0);
NVIC_ClearPendingIRQ (TIMER_32_0_IRQn);
NVIC_EnableIRQ (TIMER_32_0_IRQn);
}
void Board_TIMER_EnableTimerAsTimer(uint8_t timerNum, uint32_t presc,uint32_t matchValue,bool flagOnce)
{
// always using match0
int8_t match=0;
LPC_TIMER_T* t = getTimerFomIndex(timerNum);
Chip_TIMER_PrescaleSet(t, presc);
Chip_TIMER_SetMatch(t, match, matchValue);
Chip_TIMER_MatchEnableInt(t, match); // enable int for match 0
if(flagOnce==1)
{
Board_TIMER_DisableTimer(timerNum);
Board_TIMER_SetTimerCounter(timerNum,0);
Chip_TIMER_ResetOnMatchDisable(t, match); // reset count on match0
}
else
{
Chip_TIMER_ResetOnMatchEnable(t, match); // reset count on match0
}
Chip_TIMER_Enable(t);
}
/*
* Wind Speed translation : V = p*(2,25/t)
* V: speed in mph
* p: pulses per sampelperiod
* t: sample period in sec
*/
void setupirq(){
DBG("Initialize Wind Cups...\n");
Chip_GPIOINT_Init(LPC_GPIOINT);
Chip_GPIO_SetPinDIRInput(LPC_GPIO,2,13);
Chip_GPIO_SetPinState(LPC_GPIO, 2, 13, true);
Chip_IOCON_PinMux(LPC_IOCON, 2, 13, IOCON_MODE_PULLUP, IOCON_FUNC0);
const uint32_t prescaleDivisor = 8;
Chip_TIMER_Init(LPC_TIMER2);
Chip_TIMER_PrescaleSet(LPC_TIMER2, prescaleDivisor - 1);
Chip_TIMER_Enable(LPC_TIMER2);
ticksPerSecond = Chip_Clock_GetSystemClockRate() / prescaleDivisor / 4;
Chip_GPIOINT_SetIntFalling(LPC_GPIOINT, GPIOINT_PORT2, (1 << 13));
Chip_GPIOINT_ClearIntStatus(LPC_GPIOINT, GPIOINT_PORT2, (1 << 13));
NVIC_ClearPendingIRQ(EINT3_IRQn);
NVIC_EnableIRQ(EINT3_IRQn);
DBG("Initialize Wind Cups complete...\n");
}
void Board_TIMER_SetTimerPrescaler(uint8_t timerNum,uint32_t value)
{
Chip_TIMER_PrescaleSet(getTimerFomIndex(timerNum), value);
}
