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my_src/inverter.c
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133
my_src/inverter.c
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/*
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* inverter.c
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*
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* Created on: 25.10.2016
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* Author: dehottgw
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*/
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#include <stdlib.h>
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#include <stdbool.h>
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#include <math.h>
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#include "stm32f1xx_hal.h"
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extern TIM_HandleTypeDef htim1;
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extern TIM_HandleTypeDef htim2;
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extern TIM_HandleTypeDef htim3;
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extern TIM_HandleTypeDef htim4;
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#define NUM_OF_SINE_SLOT 30
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uint16_t freqOut = 100;
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const uint32_t FREQ_IN = 72E6;
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const float PI = 3.14159;
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float slotAngle = 180.0 / NUM_OF_SINE_SLOT;
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float sineValues[NUM_OF_SINE_SLOT];
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uint16_t IV[NUM_OF_SINE_SLOT];
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typedef struct {
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uint8_t slotCnt;
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bool running;
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GPIO_TypeDef *bridgePolarityPort;
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uint16_t bridgePolarityPin;
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TIM_HandleTypeDef *handle;
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} timerSupport_t;
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#define NUM_OF_TIMER 3
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timerSupport_t timerSupport[NUM_OF_TIMER];
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void inverterBegin() {
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for (uint8_t i = 0; i < NUM_OF_SINE_SLOT; i++) {
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float angle = i * slotAngle;
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sineValues[i] = sinf(angle / 180 * PI);
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}
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// TODO Configure pins for all three bridges
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timerSupport[0].handle = &htim2;
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timerSupport[0].running = false;
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timerSupport[0].slotCnt = 0;
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timerSupport[1].handle = &htim3;
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timerSupport[1].running = false;
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timerSupport[1].slotCnt = 0;
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timerSupport[2].handle = &htim4;
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timerSupport[2].running = false;
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timerSupport[2].slotCnt = 0;
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__HAL_TIM_ENABLE_IT(&htim2, TIM_IT_UPDATE);
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HAL_NVIC_SetPriority(TIM2_IRQn, 0, 0);
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HAL_NVIC_EnableIRQ(TIM2_IRQn);
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__HAL_TIM_ENABLE_IT(&htim3, TIM_IT_UPDATE);
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HAL_NVIC_SetPriority(TIM3_IRQn, 0, 0);
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HAL_NVIC_EnableIRQ(TIM3_IRQn);
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__HAL_TIM_ENABLE_IT(&htim4, TIM_IT_UPDATE);
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HAL_NVIC_SetPriority(TIM4_IRQn, 0, 0);
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HAL_NVIC_EnableIRQ(TIM4_IRQn);
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HAL_NVIC_SetPriority(TIM1_CC_IRQn, 0, 0);
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HAL_NVIC_EnableIRQ(TIM1_CC_IRQn);
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}
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void inverterSetFrequency(uint8_t freqOut) {
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uint16_t slotWidth = (FREQ_IN / (freqOut * NUM_OF_SINE_SLOT * 4));
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for (uint8_t i = 0; i < NUM_OF_SINE_SLOT; i++) {
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IV[i] = (uint16_t)(sineValues[i] * 0.9 * slotWidth);
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}
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HAL_TIM_OC_Stop_IT(&htim1, TIM_CHANNEL_1);
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HAL_TIM_OC_Stop_IT(&htim1, TIM_CHANNEL_2);
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HAL_TIM_OC_Stop_IT(&htim1, TIM_CHANNEL_3);
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for (uint8_t i = 0; i < NUM_OF_TIMER; i++){
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HAL_TIM_PWM_Stop_DMA(timerSupport[i].handle, TIM_CHANNEL_1);
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timerSupport[i].slotCnt = 0;
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timerSupport[i].running = false;
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HAL_GPIO_WritePin(timerSupport[i].bridgePolarityPort, timerSupport[i].bridgePolarityPin, GPIO_PIN_RESET);
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__HAL_TIM_SET_AUTORELOAD(timerSupport[i].handle, slotWidth);
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}
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// TODO Set the 120° values for the channels
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HAL_TIM_OC_Start_IT(&htim1, TIM_CHANNEL_1);
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HAL_TIM_OC_Start_IT(&htim1, TIM_CHANNEL_2);
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HAL_TIM_OC_Start_IT(&htim1, TIM_CHANNEL_3);
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}
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void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) {
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for (uint8_t i = 0; i < NUM_OF_TIMER; i++) {
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if (htim == timerSupport[i].handle) {
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timerSupport[i].slotCnt++;
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if (timerSupport[i].slotCnt == NUM_OF_SINE_SLOT + 2) {
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timerSupport[i].slotCnt = 2;
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HAL_GPIO_TogglePin(timerSupport[i].bridgePolarityPort, timerSupport[i].bridgePolarityPin);
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}
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}
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}
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}
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void HAL_TIM_OC_DelayElapsedCallback(TIM_HandleTypeDef * htim) {
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if (htim->Instance == TIM1) {
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if (htim->Channel == HAL_TIM_ACTIVE_CHANNEL_1) {
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HAL_GPIO_TogglePin(LED2_PIN_GPIO_Port, LED2_PIN_Pin);
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if (! timerSupport[0].running) {
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timerSupport[0].running = true;
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HAL_TIM_PWM_Start_DMA(timerSupport[0].handle, TIM_CHANNEL_1, (uint32_t*)IV, NUM_OF_SINE_SLOT);
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}
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} else if (htim->Channel == HAL_TIM_ACTIVE_CHANNEL_2) {
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HAL_GPIO_TogglePin(LED3_PIN_GPIO_Port, LED3_PIN_Pin);
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if (! timerSupport[1].running) {
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timerSupport[1].running = true;
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HAL_TIM_PWM_Start_DMA(timerSupport[1].handle, TIM_CHANNEL_1, (uint32_t*)IV, NUM_OF_SINE_SLOT);
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}
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} else if (htim->Channel == HAL_TIM_ACTIVE_CHANNEL_3) {
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HAL_GPIO_TogglePin(LED4_PIN_GPIO_Port, LED4_PIN_Pin);
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if (! timerSupport[2].running) {
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timerSupport[2].running = true;
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HAL_TIM_PWM_Start_DMA(timerSupport[2].handle, TIM_CHANNEL_1, (uint32_t*)IV, NUM_OF_SINE_SLOT);
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}
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}
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}
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}
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16
my_src/inverter.h
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16
my_src/inverter.h
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/*
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* inverter.h
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*
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* Created on: 25.10.2016
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* Author: dehottgw
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*/
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#ifndef INVERTER_H_
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#define INVERTER_H_
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void inverterInit();
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void inverterSetFrequency(uint8_t freqOut);
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#endif /* INVERTER_H_ */
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@ -10,108 +10,43 @@
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* 2. insert my_setup_1(); at USER CODE 1 in main.c
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* 3. insert my_setup_2(); at USER CODE 2 in main.c
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* 4. insert my_loop(); at USER CODE 3 in main.c
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* 5. insert my_errorHandler(); at USER CODE BEGIN Error_Handler in main.c
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* All this is done by the script insertMyCode.sh in tools
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*/
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#include <stdlib.h>
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#include <math.h>
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#include <PontCoopScheduler.h>
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#include "stm32f1xx_hal.h"
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#include "inverter.h"
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extern TIM_HandleTypeDef htim1;
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extern TIM_HandleTypeDef htim2;
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extern TIM_HandleTypeDef htim3;
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extern TIM_HandleTypeDef htim4;
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#define NUM_OF_SINE_SLOT 30
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uint16_t freqOut = 100;
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const uint32_t FREQ_IN = 72E6;
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const float PI = 3.14159;
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float slotAngle = 180.0 / NUM_OF_SINE_SLOT;
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float sineValues[NUM_OF_SINE_SLOT];
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uint16_t IV[NUM_OF_SINE_SLOT];
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volatile uint8_t slotCnt;
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void blink(void *handle) {
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HAL_GPIO_TogglePin(LED_PIN_GPIO_Port, LED_PIN_Pin);
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}
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void my_setup_1() {
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for (uint8_t i = 0; i < NUM_OF_SINE_SLOT; i++) {
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float angle = i * slotAngle;
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sineValues[i] = sinf(angle / 180 * PI);
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}
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schInit();
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schAdd(blink, NULL, 0, 100);
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}
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void my_setup_2() {
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uint16_t myArr = (FREQ_IN / (freqOut * NUM_OF_SINE_SLOT * 4));
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HAL_TIM_OC_Start_IT(&htim1, TIM_CHANNEL_1);
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HAL_TIM_OC_Start_IT(&htim1, TIM_CHANNEL_2);
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HAL_TIM_OC_Start_IT(&htim1, TIM_CHANNEL_3);
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HAL_NVIC_SetPriority(TIM1_CC_IRQn, 0, 0);
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HAL_NVIC_EnableIRQ(TIM1_CC_IRQn);
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__HAL_TIM_SET_AUTORELOAD(&htim3, myArr);
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HAL_TIM_PWM_Start(&htim3, TIM_CHANNEL_1);
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HAL_TIM_PWM_Start(&htim4, TIM_CHANNEL_1);
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uint16_t slotWidth = __HAL_TIM_GET_AUTORELOAD(&htim2);
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for (uint8_t i = 0; i < NUM_OF_SINE_SLOT; i++) {
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IV[i] = (uint16_t)(sineValues[i] * 0.9 * slotWidth);
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}
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slotCnt = 0;
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__HAL_TIM_SET_AUTORELOAD(&htim2, myArr);
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HAL_GPIO_WritePin(BridgePolarity_GPIO_Port, BridgePolarity_Pin, GPIO_PIN_RESET);
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HAL_TIM_PWM_Start_DMA(&htim2, TIM_CHANNEL_1, (uint32_t*)IV, NUM_OF_SINE_SLOT);
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__HAL_TIM_ENABLE_IT(&htim2, TIM_IT_UPDATE);
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HAL_NVIC_SetPriority(TIM2_IRQn, 0, 0);
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HAL_NVIC_EnableIRQ(TIM2_IRQn);
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}
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void my_errorHandler() {
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HAL_GPIO_WritePin(ERROR_PIN_GPIO_Port, ERROR_PIN_Pin, GPIO_PIN_SET);
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}
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void my_loop() {
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schExec();
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}
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void HAL_SYSTICK_Callback() {
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schUpdate();
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}
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void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) {
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if (htim->Instance == TIM2) {
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slotCnt++;
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if (slotCnt == NUM_OF_SINE_SLOT + 2) {
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slotCnt = 2;
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HAL_GPIO_TogglePin(BridgePolarity_GPIO_Port, BridgePolarity_Pin);
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}
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}
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void my_errorHandler() {
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HAL_GPIO_WritePin(ERROR_PIN_GPIO_Port, ERROR_PIN_Pin, GPIO_PIN_SET);
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}
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void HAL_TIM_OC_DelayElapsedCallback(TIM_HandleTypeDef * htim) {
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if (htim->Instance == TIM1) {
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if (htim->Channel == HAL_TIM_ACTIVE_CHANNEL_1) {
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HAL_GPIO_TogglePin(LED2_PIN_GPIO_Port, LED2_PIN_Pin);
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} else if (htim->Channel == HAL_TIM_ACTIVE_CHANNEL_2) {
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HAL_GPIO_TogglePin(LED3_PIN_GPIO_Port, LED3_PIN_Pin);
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} else if (htim->Channel == HAL_TIM_ACTIVE_CHANNEL_3) {
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HAL_GPIO_TogglePin(LED4_PIN_GPIO_Port, LED4_PIN_Pin);
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}
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}
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void my_setup_2() {
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inverterBegin();
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}
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