/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch, instruction and Data caches
- Configure the Systick to generate an interrupt each 1 msec
- Set NVIC Group Priority to 4
- Global MSP (MCU Support Package) initialization
*/
HAL_Init();
/* Configure the system clock to 180 Mhz */
SystemClock_Config();
/* Configure LED3 */
BSP_LED_Init(LED3);
/* Compute the prescaler value to have TIM1 counter clock equal to 18 MHz */
uwPrescalerValue = (uint32_t) (SystemCoreClock / 18000000) - 1;
/*##-1- Configure the TIM peripheral #######################################*/
/* Initialize TIM peripheral as follow:
+ Prescaler = SystemCoreClock/18000000
+ Period = 1799 (to have an output frequency equal to 10 KHz)
+ ClockDivision = 0
+ Counter direction = Up
*/
/* Select the Timer instance */
TimHandle.Instance = TIM1;
TimHandle.Init.Prescaler = uwPrescalerValue;
TimHandle.Init.Period = PERIOD_VALUE;
TimHandle.Init.ClockDivision = 0;
TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
if(HAL_TIM_PWM_Init(&TimHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/*##-2- Configure the PWM channels #########################################*/
/* Common configuration for all channels */
sPWMConfig.OCMode = TIM_OCMODE_PWM1;
sPWMConfig.OCPolarity = TIM_OCPOLARITY_HIGH;
sPWMConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sPWMConfig.OCIdleState = TIM_OCIDLESTATE_SET;
sPWMConfig.OCNIdleState = TIM_OCNIDLESTATE_RESET;
/* Set the pulse value for channel 1 */
sPWMConfig.Pulse = PULSE1_VALUE;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sPWMConfig, TIM_CHANNEL_1) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 2 */
sPWMConfig.Pulse = PULSE2_VALUE;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sPWMConfig, TIM_CHANNEL_2) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 3 */
sPWMConfig.Pulse = PULSE3_VALUE;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sPWMConfig, TIM_CHANNEL_3) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the Break feature & Dead time */
sBreakConfig.BreakState = TIM_BREAK_ENABLE;
sBreakConfig.DeadTime = 11;
sBreakConfig.OffStateRunMode = TIM_OSSR_ENABLE;
sBreakConfig.OffStateIDLEMode = TIM_OSSI_ENABLE;
sBreakConfig.LockLevel = TIM_LOCKLEVEL_1;
sBreakConfig.BreakPolarity = TIM_BREAKPOLARITY_HIGH;
sBreakConfig.AutomaticOutput = TIM_AUTOMATICOUTPUT_ENABLE;
if(HAL_TIMEx_ConfigBreakDeadTime(&TimHandle, &sBreakConfig) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/*##-3- Start PWM signals generation #######################################*/
/* Start channel 1 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 1N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 2 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 2N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 3 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 3N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Infinite loop */
while (1)
{
}
}
void start_adc_pwm(){
//Enable ADC and interrupts
__HAL_ADC_ENABLE(&hadc2);
//Warp field stabilize.
osDelay(2);
__HAL_ADC_ENABLE_IT(&hadc2, ADC_IT_JEOC);
//Init PWM
int half_load = htim1.Instance->ARR/2;
htim1.Instance->CCR1 = half_load;
htim1.Instance->CCR2 = half_load;
htim1.Instance->CCR3 = half_load;
//This hardware obfustication layer really is getting on my nerves
HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_1);
HAL_TIMEx_PWMN_Start(&htim1, TIM_CHANNEL_1);
HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_2);
HAL_TIMEx_PWMN_Start(&htim1, TIM_CHANNEL_2);
HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_3);
HAL_TIMEx_PWMN_Start(&htim1, TIM_CHANNEL_3);
htim1.Instance->CCR4 = 1;
HAL_TIM_PWM_Start_IT(&htim1, TIM_CHANNEL_4);
//Turn off output
//__HAL_TIM_MOE_DISABLE(&htim1);
}
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_DMA_Init();
MX_ADC1_Init();
MX_ADC2_Init();
MX_TIM1_Init();
MX_TIM2_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
HAL_TIM_Base_Start_IT(&htim1);
HAL_TIM_PWM_Start(&htim1,TIM_CHANNEL_1);
HAL_TIMEx_PWMN_Start(&htim1,TIM_CHANNEL_1);
HAL_TIM_PWM_Start(&htim1,TIM_CHANNEL_2);
HAL_TIMEx_PWMN_Start(&htim1,TIM_CHANNEL_2);
HAL_TIM_PWM_Start(&htim1,TIM_CHANNEL_3);
HAL_TIMEx_PWMN_Start(&htim1,TIM_CHANNEL_3);
HAL_TIM_Base_Start_IT(&htim2);
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief This function will set the PWM to the required value
* @param port : the gpio port to use
* @param pin : the gpio pin to use
* @param clock_freq : frequency of the tim clock
* @param period : period of the tim counter
* @param value : the value to push on the PWM output
* @param do_init : if set to 1 the initialization of the PWM is done
* @retval None
*/
void pwm_start(PinName pin, uint32_t clock_freq,
uint32_t period, uint32_t value, uint8_t do_init)
{
TIM_HandleTypeDef timHandle = {};
TIM_OC_InitTypeDef timConfig = {};
uint32_t timChannel;
/* Compute the prescaler value to have TIM counter clock equal to clock_freq Hz */
timHandle.Instance = pinmap_peripheral(pin, PinMap_PWM);
if (timHandle.Instance == NP) return;
timHandle.Init.Prescaler = (uint32_t)(getTimerClkFreq(timHandle.Instance) / clock_freq) - 1;
timHandle.Init.Period = period -1;
timHandle.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
timHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
#if !defined(STM32L0xx) && !defined(STM32L1xx)
timHandle.Init.RepetitionCounter = 0;
#endif
timHandle.State= HAL_TIM_STATE_RESET;
// TBC: is timHandle.State field should be saved ?
if (do_init == 1) {
g_current_pin = pin;
if (HAL_TIM_PWM_Init(&timHandle) != HAL_OK) {
return;
}
}
timChannel = get_pwm_channel(pin);
if (!IS_TIM_CHANNELS(timChannel)) return;
//HAL_TIM_PWM_Stop(&timHandle, timChannel);
/*##-2- Configure the PWM channels #########################################*/
/* Common configuration for all channels */
timConfig.OCMode = TIM_OCMODE_PWM1;
timConfig.OCPolarity = TIM_OCPOLARITY_HIGH;
timConfig.OCFastMode = TIM_OCFAST_DISABLE;
#if !defined(STM32L0xx) && !defined(STM32L1xx)
timConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH;
timConfig.OCNIdleState = TIM_OCNIDLESTATE_RESET;
timConfig.OCIdleState = TIM_OCIDLESTATE_RESET;
#endif
timConfig.Pulse = value;
if (HAL_TIM_PWM_ConfigChannel(&timHandle, &timConfig, timChannel) != HAL_OK)
{
/*##-2- Configure the PWM channels #########################################*/
return;
}
#if !defined(STM32L0xx) && !defined(STM32L1xx)
if(STM_PIN_INVERTED(pinmap_function(pin, PinMap_PWM))) {
HAL_TIMEx_PWMN_Start(&timHandle, timChannel);
} else
#endif
{
HAL_TIM_PWM_Start(&timHandle, timChannel);
}
}
void pwmout_write(pwmout_t* obj, float value)
{
TIM_OC_InitTypeDef sConfig;
int channel = 0;
int complementary_channel = 0;
TimHandle.Instance = (TIM_TypeDef *)(obj->pwm);
if (value < (float)0.0) {
value = 0.0;
} else if (value > (float)1.0) {
value = 1.0;
}
obj->pulse = (uint32_t)((float)obj->period * value);
// Configure channels
sConfig.OCMode = TIM_OCMODE_PWM1;
sConfig.Pulse = obj->pulse / obj->prescaler;
sConfig.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sConfig.OCFastMode = TIM_OCFAST_DISABLE;
sConfig.OCIdleState = TIM_OCIDLESTATE_RESET;
sConfig.OCNIdleState = TIM_OCNIDLESTATE_RESET;
switch (obj->channel) {
case 1:
channel = TIM_CHANNEL_1;
break;
case 2:
channel = TIM_CHANNEL_2;
break;
case 3:
channel = TIM_CHANNEL_3;
break;
case 4:
channel = TIM_CHANNEL_4;
break;
default:
return;
}
if (HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, channel) != HAL_OK) {
error("Cannot initialize PWM\n");
}
if (obj->inverted) {
HAL_TIMEx_PWMN_Start(&TimHandle, channel);
} else {
HAL_TIM_PWM_Start(&TimHandle, channel);
}
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch, instruction and Data caches
- Configure the Systick to generate an interrupt each 1 msec
- Set NVIC Group Priority to 4
- Global MSP (MCU Support Package) initialization
*/
HAL_Init();
/* Configure the system clock to 168 MHz */
SystemClock_Config();
/* Configure LED3 */
BSP_LED_Init(LED3);
/* Compute the Timer period to generate a signal frequency at 17.57 Khz */
uwPeriod = (SystemCoreClock / 17570 ) - 1;
/* Compute Pulse1 value to generate a duty cycle at 50% for channel 1 and 1N */
uwPulse1 = (5 * (uwPeriod - 1)) / 10;
/* Compute Pulse2 value to generate a duty cycle at 37.5% for channel 2 and 2N */
uwPulse2 = (375 * (uwPeriod - 1)) / 1000;
/* Compute Pulse3 value to generate a duty cycle at 25% for channel 3 and 3N */
uwPulse3 = (25 * (uwPeriod - 1)) / 100;
/* Compute Pulse4 value to generate a duty cycle at 12.5% for channel 4 */
uwPulse4 = (125 * (uwPeriod- 1)) / 1000;
/*##-1- Configure the TIM peripheral #######################################*/
/*----------------------------------------------------------------------------
Generate 7 PWM signals with 4 different duty cycles:
TIM1 input clock (TIM1CLK) is set to 2 * APB2 clock (PCLK2), since APB2
prescaler is different from 1.
TIM1CLK = 2 * PCLK2
PCLK2 = HCLK / 2
=> TIM1CLK = 2 * (HCLK / 2) = HCLK = SystemCoreClock
TIM1CLK = SystemCoreClock, Prescaler = 0, TIM1 counter clock = SystemCoreClock
SystemCoreClock is set to 168 MHz for STM32F4xx devices
The objective is to generate 7 PWM signal at 17.57 KHz:
- TIM1_Period = (SystemCoreClock / 17570) - 1
The channel 1 and channel 1N duty cycle is set to 50%
The channel 2 and channel 2N duty cycle is set to 37.5%
The channel 3 and channel 3N duty cycle is set to 25%
The channel 4 duty cycle is set to 12.5%
The Timer pulse is calculated as follows:
- ChannelxPulse = DutyCycle * (TIM1_Period - 1) / 100
Note:
SystemCoreClock variable holds HCLK frequency and is defined in system_stm32f4xx.c file.
Each time the core clock (HCLK) changes, user had to call SystemCoreClockUpdate()
function to update SystemCoreClock variable value. Otherwise, any configuration
based on this variable will be incorrect.
----------------------------------------------------------------------- */
/* Initialize TIMx peripheral as follow:
+ Prescaler = 0
+ Period = uwPeriod (to have an output frequency equal to 17.57 KHz)
+ ClockDivision = 0
+ Counter direction = Up
*/
TimHandle.Instance = TIM1;
TimHandle.Init.Period = uwPeriod;
TimHandle.Init.Prescaler = 0;
TimHandle.Init.ClockDivision = 0;
TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
TimHandle.Init.RepetitionCounter = 0;
if(HAL_TIM_PWM_Init(&TimHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/*##-2- Configure the PWM channels #########################################*/
/* Common configuration for all channels */
sConfig.OCMode = TIM_OCMODE_PWM2;
sConfig.OCFastMode = TIM_OCFAST_DISABLE;
sConfig.OCPolarity = TIM_OCPOLARITY_LOW;
sConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sConfig.OCIdleState = TIM_OCIDLESTATE_SET;
sConfig.OCNIdleState= TIM_OCNIDLESTATE_RESET;
/* Set the pulse value for channel 1 */
sConfig.Pulse = uwPulse1;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_1) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 2 */
sConfig.Pulse = uwPulse2;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_2) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 3 */
sConfig.Pulse = uwPulse3;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_3) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 4 */
sConfig.Pulse = uwPulse4;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_4) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/*##-3- Start PWM signals generation #######################################*/
/* Start channel 1 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 1N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 2 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 2N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 3 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 3N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 4 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_4) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Infinite loop */
while (1)
{
}
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch, instruction and Data caches
- Configure the Systick to generate an interrupt each 1 msec
- Set NVIC Group Priority to 4
- Global MSP (MCU Support Package) initialization
*/
HAL_Init();
/* Configure the system clock to 168 MHz */
SystemClock_Config();
/* Configure LED3 */
BSP_LED_Init(LED3);
/* Compute the prescaler value to have TIM1 counter clock equal to 18 MHz */
uwPrescalerValue = (uint32_t) ((SystemCoreClock / 18000000) - 1);
/*##-1- Configure the TIM peripheral #######################################*/
/* ---------------------------------------------------------------------------
1/ Generate 3 complementary PWM signals with 3 different duty cycles:
TIM1 input clock (TIM1CLK) is set to 2 * APB2 clock (PCLK2), since APB2
prescaler is different from 1.
TIM1CLK = 2 * PCLK2
PCLK2 = HCLK / 2
=> TIM1CLK = 2 * (HCLK / 2) = HCLK = SystemCoreClock
TIM1CLK is fixed to SystemCoreClock, the TIM1 Prescaler is set to have
TIM1 counter clock = 18MHz..
The objective is to generate PWM signal at 10 KHz:
- TIM1_Period = (SystemCoreClock / 10000) - 1
The Three Duty cycles are computed as the following description:
The channel 1 duty cycle is set to 50% so channel 1N is set to 50%.
The channel 2 duty cycle is set to 25% so channel 2N is set to 75%.
The channel 3 duty cycle is set to 12.5% so channel 3N is set to 87.5%.
The Timer pulse is calculated as follows:
- ChannelxPulse = DutyCycle * (TIM1_Period - 1) / 100
2/ Insert a dead time equal to (11/SystemCoreClock) ns
3/ Configure the break feature, active at High level, and using the automatic
output enable feature
4/ Use the Locking parameters level1.
Note:
SystemCoreClock variable holds HCLK frequency and is defined in system_stm32f4xx.c file.
Each time the core clock (HCLK) changes, user had to update SystemCoreClock
variable value. Otherwise, any configuration based on this variable will be incorrect.
This variable is updated in three ways:
1) by calling CMSIS function SystemCoreClockUpdate()
2) by calling HAL API function HAL_RCC_GetSysClockFreq()
3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
--------------------------------------------------------------------------- */
/* Initialize TIM peripheral as follow:
+ Prescaler = (SystemCoreClock/18000000) - 1
+ Period = 1799 (to have an output frequency equal to 10 KHz)
+ ClockDivision = 0
+ Counter direction = Up
*/
/* Select the Timer instance */
TimHandle.Instance = TIM1;
TimHandle.Init.Prescaler = uwPrescalerValue;
TimHandle.Init.Period = PERIOD_VALUE;
TimHandle.Init.ClockDivision = 0;
TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
TimHandle.Init.RepetitionCounter = 0;
if(HAL_TIM_PWM_Init(&TimHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/*##-2- Configure the PWM channels #########################################*/
/* Common configuration for all channels */
sPWMConfig.OCMode = TIM_OCMODE_PWM1;
sPWMConfig.OCPolarity = TIM_OCPOLARITY_HIGH;
sPWMConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sPWMConfig.OCIdleState = TIM_OCIDLESTATE_SET;
sPWMConfig.OCNIdleState = TIM_OCNIDLESTATE_RESET;
/* Set the pulse value for channel 1 */
sPWMConfig.Pulse = PULSE1_VALUE;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sPWMConfig, TIM_CHANNEL_1) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 2 */
sPWMConfig.Pulse = PULSE2_VALUE;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sPWMConfig, TIM_CHANNEL_2) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 3 */
sPWMConfig.Pulse = PULSE3_VALUE;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sPWMConfig, TIM_CHANNEL_3) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the Break feature & Dead time */
sBreakConfig.BreakState = TIM_BREAK_ENABLE;
sBreakConfig.DeadTime = 11;
sBreakConfig.OffStateRunMode = TIM_OSSR_ENABLE;
sBreakConfig.OffStateIDLEMode = TIM_OSSI_ENABLE;
sBreakConfig.LockLevel = TIM_LOCKLEVEL_1;
sBreakConfig.BreakPolarity = TIM_BREAKPOLARITY_HIGH;
sBreakConfig.AutomaticOutput = TIM_AUTOMATICOUTPUT_ENABLE;
if(HAL_TIMEx_ConfigBreakDeadTime(&TimHandle, &sBreakConfig) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/*##-3- Start PWM signals generation #######################################*/
/* Start channel 1 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 1N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 2 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 2N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 3 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 3N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Infinite loop */
while (1)
{
}
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* STM32F103xG HAL library initialization:
- Configure the Flash prefetch
- Systick timer is configured by default as source of time base, but user
can eventually implement his proper time base source (a general purpose
timer for example or other time source), keeping in mind that Time base
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
handled in milliseconds basis.
- Set NVIC Group Priority to 4
- Low Level Initialization
*/
HAL_Init();
/* Configure the system clock to 72 MHz */
SystemClock_Config();
/* Configure LED2 */
BSP_LED_Init(LED2);
/* Compute the prescaler value to have TIM1 counter clock equal to 12MHz */
uwPrescalerValue = (uint32_t) ((SystemCoreClock / 12000000) - 1);
/*##-1- Configure the TIM peripheral #######################################*/
/* ---------------------------------------------------------------------------
1/ Generate 3 complementary PWM signals with 3 different duty cycles:
TIM1 input clock (TIM1CLK) is set to APB2 clock (PCLK2), since APB2
prescaler is 1.
TIM1CLK = PCLK2
PCLK2 = HCLK
=> TIM1CLK = HCLK = SystemCoreClock
TIM1CLK is fixed to SystemCoreClock, the TIM1 Prescaler is set to have
TIM1 counter clock = 12MHz.
The objective is to generate PWM signal at 10 KHz:
- TIM1_Period = (TIM1 counter clock / 10000) - 1
The Three Duty cycles are computed as the following description:
The channel 1 duty cycle is set to 50% so channel 1N is set to 50%.
The channel 2 duty cycle is set to 25% so channel 2N is set to 75%.
The channel 3 duty cycle is set to 12.5% so channel 3N is set to 87.5%.
The Timer pulse is calculated as follows:
- ChannelxPulse = DutyCycle * (TIM1_Period - 1) / 100
2/ Insert a dead time equal to (100/SystemCoreClock) us
3/ Configure the break feature, active at High level, and using the automatic
output enable feature
4/ Use the Locking parameters level1.
Note:
SystemCoreClock variable holds HCLK frequency and is defined in system_stm32f1xx.c file.
Each time the core clock (HCLK) changes, user had to update SystemCoreClock
variable value. Otherwise, any configuration based on this variable will be incorrect.
This variable is updated in three ways:
1) by calling CMSIS function SystemCoreClockUpdate()
2) by calling HAL API function HAL_RCC_GetSysClockFreq()
3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
--------------------------------------------------------------------------- */
/* Initialize TIM peripheral as follows:
+ Prescaler = (SystemCoreClock/12000000) - 1
+ Period = (1200 - 1) (to have an output frequency equal to 10 KHz)
+ ClockDivision = 0
+ Counter direction = Up
*/
/* Select the Timer instance */
TimHandle.Instance = TIM1;
TimHandle.Init.Prescaler = uwPrescalerValue;
TimHandle.Init.Period = PERIOD_VALUE;
TimHandle.Init.ClockDivision = 0;
TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
TimHandle.Init.RepetitionCounter = 0;
if(HAL_TIM_PWM_Init(&TimHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/*##-2- Configure the PWM channels #########################################*/
/* Common configuration for all channels */
sPWMConfig.OCMode = TIM_OCMODE_PWM1;
sPWMConfig.OCPolarity = TIM_OCPOLARITY_HIGH;
sPWMConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sPWMConfig.OCIdleState = TIM_OCIDLESTATE_SET;
sPWMConfig.OCNIdleState = TIM_OCNIDLESTATE_RESET;
sPWMConfig.OCFastMode = TIM_OCFAST_DISABLE;
/* Set the pulse value for channel 1 */
sPWMConfig.Pulse = PULSE1_VALUE;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sPWMConfig, TIM_CHANNEL_1) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 2 */
sPWMConfig.Pulse = PULSE2_VALUE;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sPWMConfig, TIM_CHANNEL_2) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 3 */
sPWMConfig.Pulse = PULSE3_VALUE;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sPWMConfig, TIM_CHANNEL_3) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the Break feature & Dead time */
sBreakConfig.BreakState = TIM_BREAK_ENABLE;
sBreakConfig.DeadTime = 100;
sBreakConfig.OffStateRunMode = TIM_OSSR_ENABLE;
sBreakConfig.OffStateIDLEMode = TIM_OSSI_ENABLE;
sBreakConfig.LockLevel = TIM_LOCKLEVEL_1;
sBreakConfig.BreakPolarity = TIM_BREAKPOLARITY_HIGH;
sBreakConfig.AutomaticOutput = TIM_AUTOMATICOUTPUT_ENABLE;
if(HAL_TIMEx_ConfigBreakDeadTime(&TimHandle, &sBreakConfig) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/*##-3- Start PWM signals generation #######################################*/
/* Start channel 1 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 1N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 2 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 2N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 3 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 3N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
while (1)
{
}
}
void pwmout_write(pwmout_t* obj, float value) {
TIM_OC_InitTypeDef sConfig;
int channel = 0;
int complementary_channel = 0;
TimHandle.Instance = (TIM_TypeDef *)(obj->pwm);
if (value < (float)0.0) {
value = 0.0;
} else if (value > (float)1.0) {
value = 1.0;
}
obj->pulse = (uint32_t)((float)obj->period * value);
// Configure channels
sConfig.OCMode = TIM_OCMODE_PWM1;
sConfig.Pulse = obj->pulse;
sConfig.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sConfig.OCFastMode = TIM_OCFAST_DISABLE;
sConfig.OCIdleState = TIM_OCIDLESTATE_RESET;
sConfig.OCNIdleState = TIM_OCNIDLESTATE_RESET;
switch (obj->pin) {
// Channels 1
case PA_0:
case PA_5:
case PA_6:
case PA_8:
case PA_15:
case PB_4:
case PB_6:
case PC_6:
channel = TIM_CHANNEL_1;
break;
// Channels 1N
case PA_7:
case PB_13:
channel = TIM_CHANNEL_1;
complementary_channel = 1;
break;
// Channels 2
case PA_1:
case PA_9:
case PB_3:
case PB_5:
case PB_7:
case PC_7:
channel = TIM_CHANNEL_2;
break;
// Channels 2N
case PB_0:
case PB_14:
channel = TIM_CHANNEL_2;
complementary_channel = 1;
break;
// Channels 3
case PA_2:
case PA_10:
case PB_8:
case PB_10:
case PC_8:
channel = TIM_CHANNEL_3;
break;
// Channels 3N
case PB_1:
case PB_15:
channel = TIM_CHANNEL_3;
complementary_channel = 1;
break;
// Channels 4
case PA_3:
case PA_11:
case PB_9:
case PC_9:
channel = TIM_CHANNEL_4;
break;
default:
return;
}
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, channel);
if (complementary_channel) {
HAL_TIMEx_PWMN_Start(&TimHandle, channel);
} else {
HAL_TIM_PWM_Start(&TimHandle, channel);
}
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch, instruction and Data caches
- Configure the Systick to generate an interrupt each 1 msec
- Set NVIC Group Priority to 4
- Global MSP (MCU Support Package) initialization
*/
HAL_Init();
/* Configure the system clock to 180 MHz */
SystemClock_Config();
/* Configure LED3 */
BSP_LED_Init(LED3);
/* Compute the Timer period to generate a signal frequency at 17.57 Khz */
uwPeriod = (SystemCoreClock / 17570 ) - 1;
/* Compute Pulse1 value to generate a duty cycle at 50% for channel 1 and 1N */
uwPulse1 = (5 * (uwPeriod - 1)) / 10;
/* Compute Pulse2 value to generate a duty cycle at 37.5% for channel 2 and 2N */
uwPulse2 = (375 * (uwPeriod - 1)) / 1000;
/* Compute Pulse3 value to generate a duty cycle at 25% for channel 3 and 3N */
uwPulse3 = (25 * (uwPeriod - 1)) / 100;
/* Compute Pulse4 value to generate a duty cycle at 12.5% for channel 4 */
uwPulse4 = (125 * (uwPeriod- 1)) / 1000;
/*##-1- Configure the TIM peripheral #######################################*/
/* Initialize TIMx peripheral as follow:
+ Prescaler = 0
+ Period = uwPeriod (to have an output frequency equal to 17.57 KHz)
+ ClockDivision = 0
+ Counter direction = Up
*/
TimHandle.Instance = TIM1;
TimHandle.Init.Period = uwPeriod;
TimHandle.Init.Prescaler = 0;
TimHandle.Init.ClockDivision = 0;
TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
TimHandle.Init.RepetitionCounter = 0;
if(HAL_TIM_PWM_Init(&TimHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/*##-2- Configure the PWM channels #########################################*/
/* Common configuration for all channels */
sConfig.OCMode = TIM_OCMODE_PWM2;
sConfig.OCFastMode = TIM_OCFAST_DISABLE;
sConfig.OCPolarity = TIM_OCPOLARITY_LOW;
sConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sConfig.OCIdleState = TIM_OCIDLESTATE_SET;
sConfig.OCNIdleState= TIM_OCNIDLESTATE_RESET;
/* Set the pulse value for channel 1 */
sConfig.Pulse = uwPulse1;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_1) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 2 */
sConfig.Pulse = uwPulse2;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_2) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 3 */
sConfig.Pulse = uwPulse3;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_3) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 4 */
sConfig.Pulse = uwPulse4;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_4) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/*##-3- Start PWM signals generation #######################################*/
/* Start channel 1 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 1N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 2 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 2N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 3 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 3N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 4 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_4) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Infinite loop */
while (1)
{
}
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch
- Systick timer is configured by default as source of time base, but user
can eventually implement his proper time base source (a general purpose
timer for example or other time source), keeping in mind that Time base
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
handled in milliseconds basis.
- Set NVIC Group Priority to 4
- Low Level Initialization
*/
HAL_Init();
/* Configure the system clock to 180 MHz */
SystemClock_Config();
/* Configure LED3 */
BSP_LED_Init(LED3);
/* Compute the period value to have TIM1 counter clock equal to 18kHz */
uwPeriodValue = (uint32_t) ((SystemCoreClock / 18000) - 1);
/* Compute Pulse1 value to generate a duty cycle at 50% for channel 1 and 1N */
uwPulse1 = (5 * (uwPeriodValue - 1)) / 10;
/* Compute Pulse2 value to generate a duty cycle at 37.5% for channel 2 and 2N */
uwPulse2 = (375 * (uwPeriodValue - 1)) / 1000;
/* Compute Pulse3 value to generate a duty cycle at 25% for channel 3 and 3N */
uwPulse3 = (25 * (uwPeriodValue - 1)) / 100;
/* Compute Pulse4 value to generate a duty cycle at 12.5% for channel 4 */
uwPulse4 = (125 * (uwPeriodValue- 1)) / 1000;
/*##-1- Configure the TIM peripheral #######################################*/
/* ---------------------------------------------------------------------------
Generate 7 PWM signals with 4 different duty cycles (50%, 37.5%, 25% and 12.5%)
TIM1 input clock (TIM1CLK) is set to 2 * APB2 clock (PCLK2), since APB2
prescaler is different from 1.
TIM1CLK = 2 * PCLK2
PCLK1 = HCLK / 2
=> TIM1CLK = HCLK = SystemCoreClock
TIM1CLK is fixed to SystemCoreClock, the TIM1 Prescaler is set to have
TIM1 counter clock = 18kHz.
The objective is to generate 7 PWM signal at 18kHz:
- TIM1_Period = (SystemCoreClock / 18000) - 1
The channel 1 and channel 1N duty cycle is set to 50%
The channel 2 and channel 2N duty cycle is set to 37.5%
The channel 3 and channel 3N duty cycle is set to 25%
The channel 4 duty cycle is set to 12.5%
The Timer pulse is calculated as follows:
- ChannelxPulse = DutyCycle * (TIM1_Period - 1) / 100
Note:
SystemCoreClock variable holds HCLK frequency and is defined in system_stm32f4xx.c file.
Each time the core clock (HCLK) changes, user had to update SystemCoreClock
variable value. Otherwise, any configuration based on this variable will be incorrect.
This variable is updated in three ways:
1) by calling CMSIS function SystemCoreClockUpdate()
2) by calling HAL API function HAL_RCC_GetSysClockFreq()
3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
--------------------------------------------------------------------------- */
/* Initialize TIM peripheral as follows:
+ Prescaler = 0
+ Period = uwPeriodValue (to have an output frequency equal to 18kHz)
+ ClockDivision = 0
+ Counter direction = Up
*/
/* Select the Timer instance */
TimHandle.Instance = TIM1;
TimHandle.Init.Prescaler = 0;
TimHandle.Init.Period = uwPeriodValue;
TimHandle.Init.ClockDivision = 0;
TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
TimHandle.Init.RepetitionCounter = 0;
if(HAL_TIM_PWM_Init(&TimHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/*##-2- Configure the PWM channels #########################################*/
/* Common configuration for all channels */
sPWMConfig.OCMode = TIM_OCMODE_PWM2;
sPWMConfig.OCFastMode = TIM_OCFAST_DISABLE;
sPWMConfig.OCPolarity = TIM_OCPOLARITY_LOW;
sPWMConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sPWMConfig.OCIdleState = TIM_OCIDLESTATE_SET;
sPWMConfig.OCNIdleState= TIM_OCNIDLESTATE_RESET;
/* Set the pulse value for channel 1 */
sPWMConfig.Pulse = uwPulse1;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sPWMConfig, TIM_CHANNEL_1) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 2 */
sPWMConfig.Pulse = uwPulse2;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sPWMConfig, TIM_CHANNEL_2) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 3 */
sPWMConfig.Pulse = uwPulse3;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sPWMConfig, TIM_CHANNEL_3) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 4 */
sPWMConfig.Pulse = uwPulse4;
if(HAL_TIM_PWM_ConfigChannel(&TimHandle, &sPWMConfig, TIM_CHANNEL_4) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/*##-3- Start PWM signals generation #######################################*/
/* Start channel 1 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 1N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 2 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 2N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 3 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 3N */
if(HAL_TIMEx_PWMN_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 4 */
if(HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_4) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
while (1)
{
}
}
void MX_TIM_Init(void) {
__HAL_RCC_TIM1_CLK_ENABLE();
__HAL_RCC_TIM8_CLK_ENABLE();
TIM_MasterConfigTypeDef sMasterConfig;
TIM_OC_InitTypeDef sConfigOC;
TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig;
TIM_SlaveConfigTypeDef sTimConfig;
htim_right.Instance = RIGHT_TIM;
htim_right.Init.Prescaler = 0;
htim_right.Init.CounterMode = TIM_COUNTERMODE_CENTERALIGNED1;
htim_right.Init.Period = 64000000 / 2 / PWM_FREQ;
htim_right.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim_right.Init.RepetitionCounter = 0;
htim_right.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
HAL_TIM_PWM_Init(&htim_right);
sMasterConfig.MasterOutputTrigger = TIM_TRGO_ENABLE;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
HAL_TIMEx_MasterConfigSynchronization(&htim_right, &sMasterConfig);
sConfigOC.OCMode = TIM_OCMODE_PWM1;
sConfigOC.Pulse = 0;
sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfigOC.OCNPolarity = TIM_OCNPOLARITY_LOW;
sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET;
sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_SET;
HAL_TIM_PWM_ConfigChannel(&htim_right, &sConfigOC, TIM_CHANNEL_1);
HAL_TIM_PWM_ConfigChannel(&htim_right, &sConfigOC, TIM_CHANNEL_2);
HAL_TIM_PWM_ConfigChannel(&htim_right, &sConfigOC, TIM_CHANNEL_3);
sBreakDeadTimeConfig.OffStateRunMode = TIM_OSSR_ENABLE;
sBreakDeadTimeConfig.OffStateIDLEMode = TIM_OSSI_ENABLE;
sBreakDeadTimeConfig.LockLevel = TIM_LOCKLEVEL_OFF;
sBreakDeadTimeConfig.DeadTime = DEAD_TIME;
sBreakDeadTimeConfig.BreakState = TIM_BREAK_DISABLE;
sBreakDeadTimeConfig.BreakPolarity = TIM_BREAKPOLARITY_LOW;
sBreakDeadTimeConfig.AutomaticOutput = TIM_AUTOMATICOUTPUT_DISABLE;
HAL_TIMEx_ConfigBreakDeadTime(&htim_right, &sBreakDeadTimeConfig);
htim_left.Instance = LEFT_TIM;
htim_left.Init.Prescaler = 0;
htim_left.Init.CounterMode = TIM_COUNTERMODE_CENTERALIGNED1;
htim_left.Init.Period = 64000000 / 2 / PWM_FREQ;
htim_left.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim_left.Init.RepetitionCounter = 0;
htim_left.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
HAL_TIM_PWM_Init(&htim_left);
sMasterConfig.MasterOutputTrigger = TIM_TRGO_UPDATE;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_ENABLE;
HAL_TIMEx_MasterConfigSynchronization(&htim_left, &sMasterConfig);
sTimConfig.InputTrigger = TIM_TS_ITR0;
sTimConfig.SlaveMode = TIM_SLAVEMODE_GATED;
HAL_TIM_SlaveConfigSynchronization(&htim_left, &sTimConfig);
sConfigOC.OCMode = TIM_OCMODE_PWM1;
sConfigOC.Pulse = 0;
sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfigOC.OCNPolarity = TIM_OCNPOLARITY_LOW;
sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET;
sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_SET;
HAL_TIM_PWM_ConfigChannel(&htim_left, &sConfigOC, TIM_CHANNEL_1);
HAL_TIM_PWM_ConfigChannel(&htim_left, &sConfigOC, TIM_CHANNEL_2);
HAL_TIM_PWM_ConfigChannel(&htim_left, &sConfigOC, TIM_CHANNEL_3);
sBreakDeadTimeConfig.OffStateRunMode = TIM_OSSR_ENABLE;
sBreakDeadTimeConfig.OffStateIDLEMode = TIM_OSSI_ENABLE;
sBreakDeadTimeConfig.LockLevel = TIM_LOCKLEVEL_OFF;
sBreakDeadTimeConfig.DeadTime = DEAD_TIME;
sBreakDeadTimeConfig.BreakState = TIM_BREAK_DISABLE;
sBreakDeadTimeConfig.BreakPolarity = TIM_BREAKPOLARITY_LOW;
sBreakDeadTimeConfig.AutomaticOutput = TIM_AUTOMATICOUTPUT_DISABLE;
HAL_TIMEx_ConfigBreakDeadTime(&htim_left, &sBreakDeadTimeConfig);
LEFT_TIM->BDTR &= ~TIM_BDTR_MOE;
RIGHT_TIM->BDTR &= ~TIM_BDTR_MOE;
HAL_TIM_PWM_Start(&htim_left, TIM_CHANNEL_1);
HAL_TIM_PWM_Start(&htim_left, TIM_CHANNEL_2);
HAL_TIM_PWM_Start(&htim_left, TIM_CHANNEL_3);
HAL_TIMEx_PWMN_Start(&htim_left, TIM_CHANNEL_1);
HAL_TIMEx_PWMN_Start(&htim_left, TIM_CHANNEL_2);
HAL_TIMEx_PWMN_Start(&htim_left, TIM_CHANNEL_3);
HAL_TIM_PWM_Start(&htim_right, TIM_CHANNEL_1);
HAL_TIM_PWM_Start(&htim_right, TIM_CHANNEL_2);
HAL_TIM_PWM_Start(&htim_right, TIM_CHANNEL_3);
HAL_TIMEx_PWMN_Start(&htim_right, TIM_CHANNEL_1);
HAL_TIMEx_PWMN_Start(&htim_right, TIM_CHANNEL_2);
HAL_TIMEx_PWMN_Start(&htim_right, TIM_CHANNEL_3);
htim_left.Instance->RCR = 1;
__HAL_TIM_ENABLE(&htim_right);
}
