127 lines
3.5 KiB
C++
127 lines
3.5 KiB
C++
/*
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* IRQ.c
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*
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* Created on: 30 May 2020
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* Author: Ralim
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*/
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#include "IRQ.h"
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#include "Pins.h"
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#include "int_n.h"
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volatile uint8_t i2c_read_process = 0;
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volatile uint8_t i2c_write_process = 0;
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volatile uint8_t i2c_slave_address = 0;
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volatile uint8_t i2c_error_code = 0;
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volatile uint8_t *i2c_write;
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volatile uint8_t *i2c_read;
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volatile uint16_t i2c_nbytes;
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volatile uint16_t i2c_write_dress;
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volatile uint16_t i2c_read_dress;
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volatile uint8_t i2c_process_flag = 0;
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void ADC0_1_IRQHandler(void) {
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adc_interrupt_flag_clear(ADC0, ADC_INT_FLAG_EOIC);
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// unblock the PID controller thread
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if (xTaskGetSchedulerState() != taskSCHEDULER_NOT_STARTED) {
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BaseType_t xHigherPriorityTaskWoken = pdFALSE;
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if (pidTaskNotification) {
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vTaskNotifyGiveFromISR(pidTaskNotification, &xHigherPriorityTaskWoken);
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portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
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}
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}
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}
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volatile uint16_t PWMSafetyTimer = 0;
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volatile uint8_t pendingPWM = 0;
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void TIMER1_IRQHandler(void) {
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if (timer_interrupt_flag_get(TIMER1, TIMER_INT_UP) == SET) {
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timer_interrupt_flag_clear(TIMER1, TIMER_INT_UP);
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// rollover turn on output if required
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if (PWMSafetyTimer && pendingPWM) {
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timer_channel_output_pulse_value_config(TIMER2, TIMER_CH_0, 50);
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}
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if (PWMSafetyTimer) {
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PWMSafetyTimer--;
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}
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}
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if (timer_interrupt_flag_get(TIMER1, TIMER_INT_CH1) == SET) {
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timer_interrupt_flag_clear(TIMER1, TIMER_INT_CH1);
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// This is triggered on pwm setpoint trigger; we want to copy the pending
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// PWM value into the output control reg
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timer_channel_output_pulse_value_config(TIMER2, TIMER_CH_0, 0);
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if (pendingPWM) {
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timer_channel_output_pulse_value_config(TIMER1, TIMER_CH_1, pendingPWM);
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}
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}
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}
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void setTipPWM(uint8_t pulse) {
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PWMSafetyTimer = 10; // This is decremented in the handler for PWM so that the tip pwm is
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// disabled if the PID task is not scheduled often enough.
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pendingPWM = pulse;
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}
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static bool fastPWM;
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static void switchToFastPWM(void) {
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fastPWM = true;
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totalPWM = powerPWM + tempMeasureTicks * 2;
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TIMER_CAR(TIMER1) = (uint32_t) totalPWM;
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// ~3.5 Hz rate
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TIMER_CH0CV(TIMER1) = powerPWM + holdoffTicks * 2;
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// 1 kHz tick rate
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TIMER_PSC(TIMER1) = 12000;
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/* generate an update event */
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TIMER_SWEVG(TIMER1) |= (uint32_t) TIMER_SWEVG_UPG;
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}
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static void switchToSlowPWM(void) {
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fastPWM = false;
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totalPWM = powerPWM + tempMeasureTicks;
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TIMER_CAR(TIMER1) = (uint32_t) totalPWM;
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// ~1.84 Hz rate
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TIMER_CH0CV(TIMER1) = powerPWM + holdoffTicks;
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// 500 Hz tick rate
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TIMER_PSC(TIMER1) = 24000;
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/* generate an update event */
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TIMER_SWEVG(TIMER1) |= (uint32_t) TIMER_SWEVG_UPG;
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}
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bool tryBetterPWM(uint8_t pwm) {
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if (fastPWM && pwm == powerPWM) {
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// maximum power for fast PWM reached, need to go slower to get more
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switchToSlowPWM();
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return true;
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} else if (!fastPWM && pwm < 230) {
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// 254 in fast PWM mode gives the same power as 239 in slow
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// allow for some reasonable hysteresis by switching only when it goes
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// below 230 (equivalent to 245 in fast mode)
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switchToFastPWM();
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return true;
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}
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return false;
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}
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void EXTI5_9_IRQHandler(void) {
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#ifdef POW_PD
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if (RESET != exti_interrupt_flag_get(EXTI_5)) {
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exti_interrupt_flag_clear(EXTI_5);
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if (RESET == gpio_input_bit_get(FUSB302_IRQ_GPIO_Port, FUSB302_IRQ_Pin)) {
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if (xTaskGetSchedulerState() != taskSCHEDULER_NOT_STARTED) {
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InterruptHandler::irqCallback();
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}
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}
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}
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#endif
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}
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// These are unused for now
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void I2C0_EV_IRQHandler(void) {
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}
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void I2C0_ER_IRQHandler(void) {
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}
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