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/**
******************************************************************************
* @file TIM/TIM_6Steps/Src/main.c
* @author MCD Application Team
* @brief This example shows how to use TIM1 peripheral to generate 6 Steps.
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/** @addtogroup STM32F4xx_HAL_Examples
* @{
*/
/** @addtogroup TIM_6Steps
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Step Index */
__IO uint32_t uwStep = 0;
/* Timer handler declaration */
TIM_HandleTypeDef TimHandle;
/* Timer Output Compare Configuration Structure declaration */
TIM_OC_InitTypeDef sConfig;
/* Timer Break Configuration Structure declaration */
TIM_BreakDeadTimeConfigTypeDef sConfigBK;
/* Private function prototypes -----------------------------------------------*/
static void SystemClock_Config(void);
static void Error_Handler(void);
/* Private functions ---------------------------------------------------------*/
/**
* @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);
/*##-1- Configure the TIM peripheral #######################################*/
/*----------------------------------------------------------------------------
The STM32F4xx TIM1 peripheral offers the possibility to program in advance the
configuration for the next TIM1 outputs behaviour (step) and change the configuration
of all the channels at the same time. This operation is possible when the COM
(commutation) event is used.
The COM event can be generated by software by setting the COM bit in the TIM1_EGR
register or by hardware (on TRC rising edge).
In this example, a software COM event is generated each 1 ms: using the SysTick
interrupt.
The TIM1 is configured in Timing Mode, each time a COM event occurs, a new TIM1
configuration will be set in advance.
----------------------------------------------------------------------------*/
/* Initialize TIMx peripheral as follow:
+ Prescaler = 0
+ Period = 4095
+ ClockDivision = 0
+ Counter direction = Up
*/
TimHandle.Instance = TIM1;
TimHandle.Init.Period = 4095;
TimHandle.Init.Prescaler = 0;
TimHandle.Init.ClockDivision = 0;
TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
TimHandle.Init.RepetitionCounter = 0;
TimHandle.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if(HAL_TIM_OC_Init(&TimHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/*##-2- Configure the output channels ######################################*/
/* Common configuration for all channels */
sConfig.OCMode = TIM_OCMODE_TIMING;
sConfig.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sConfig.OCIdleState = TIM_OCIDLESTATE_SET;
sConfig.OCNIdleState = TIM_OCNIDLESTATE_SET;
sConfig.OCFastMode = TIM_OCFAST_DISABLE;
/* Set the pulse value for channel 1 */
sConfig.Pulse = 2047;
if(HAL_TIM_OC_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_1) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 2 */
sConfig.Pulse = 1023;
if(HAL_TIM_OC_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_2) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/* Set the pulse value for channel 3 */
sConfig.Pulse = 511;
if(HAL_TIM_OC_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_3) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/*##-3- Configure the Break stage ##########################################*/
sConfigBK.OffStateRunMode = TIM_OSSR_ENABLE;
sConfigBK.OffStateIDLEMode = TIM_OSSI_ENABLE;
sConfigBK.LockLevel = TIM_LOCKLEVEL_OFF;
sConfigBK.BreakState = TIM_BREAK_ENABLE;
sConfigBK.BreakPolarity = TIM_BREAKPOLARITY_HIGH;
sConfigBK.AutomaticOutput = TIM_AUTOMATICOUTPUT_ENABLE;
sConfigBK.DeadTime = 1;
if(HAL_TIMEx_ConfigBreakDeadTime(&TimHandle, &sConfigBK) != HAL_OK)
{
/* Configuration Error */
Error_Handler();
}
/*##-4- Configure the commutation event: software event ####################*/
HAL_TIMEx_ConfigCommutationEvent_IT(&TimHandle, TIM_TS_NONE, TIM_COMMUTATION_SOFTWARE);
/*##-5- Start signals generation ###########################################*/
/*--------------------------------------------------------------------------*/
/* Start channel 1 */
if(HAL_TIM_OC_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 1N */
if(HAL_TIMEx_OCN_Start(&TimHandle, TIM_CHANNEL_1) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* Start channel 2 */
if(HAL_TIM_OC_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 2N */
if(HAL_TIMEx_OCN_Start(&TimHandle, TIM_CHANNEL_2) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* Start channel 3 */
if(HAL_TIM_OC_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/* Start channel 3N */
if(HAL_TIMEx_OCN_Start(&TimHandle, TIM_CHANNEL_3) != HAL_OK)
{
/* Starting Error */
Error_Handler();
}
/*--------------------------------------------------------------------------*/
/* Infinite loop */
while (1)
{
}
}
/**
* @brief Commutation event callback in non blocking mode
* @param htim : hadc handle
* @retval None
*/
void HAL_TIMEx_CommutationCallback(TIM_HandleTypeDef *htim)
{
/* Entry state */
if (uwStep == 0)
{
/* Next step: Step 1 Configuration -------------------------------------- */
sConfig.OCMode = TIM_OCMODE_PWM1;
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_1);
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1);
HAL_TIMEx_OCN_Stop(&TimHandle, TIM_CHANNEL_1);
/* Channel3 configuration */
sConfig.OCMode = TIM_OCMODE_PWM1;
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_3);
HAL_TIMEx_OCN_Start(&TimHandle, TIM_CHANNEL_3);
HAL_TIM_PWM_Stop(&TimHandle, TIM_CHANNEL_3);
/* Channel2 configuration */
HAL_TIM_OC_Stop(&TimHandle, TIM_CHANNEL_2);
HAL_TIMEx_OCN_Stop(&TimHandle, TIM_CHANNEL_2);
uwStep = 1;
}
if (uwStep == 1)
{
/* Next step: Step 2 Configuration -------------------------------------- */
/* Channel1 configuration */
/* Same configuration as the previous step */
/* Channel2 configuration */
sConfig.OCMode = TIM_OCMODE_PWM1;
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_2);
HAL_TIMEx_OCN_Start(&TimHandle, TIM_CHANNEL_2);
/* Channel3 configuration */
HAL_TIMEx_OCN_Stop(&TimHandle, TIM_CHANNEL_3);
uwStep++;
}
else if (uwStep == 2)
{
/* Next step: Step 3 Configuration -------------------------------------- */
/* Channel2 configuration */
/* Same configuration as the previous step */
/* Channel3 configuration */
sConfig.OCMode = TIM_OCMODE_PWM1;
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_3);
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_3);
/* Channel1 configuration */
HAL_TIM_OC_Stop(&TimHandle, TIM_CHANNEL_1);
uwStep++;
}
else if (uwStep == 3)
{
/* Next step: Step 4 Configuration -------------------------------------- */
/* Channel3 configuration */
/* Same configuration as the previous step */
/* Channel2 configuration */
HAL_TIMEx_OCN_Stop(&TimHandle, TIM_CHANNEL_2);
/* Channel1 configuration */
sConfig.OCMode = TIM_OCMODE_PWM1;
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_1);
HAL_TIMEx_OCN_Start(&TimHandle, TIM_CHANNEL_1);
uwStep++;
}
else if (uwStep == 4)
{
/* Next step: Step 5 Configuration -------------------------------------- */
/* Channel3 configuration */
HAL_TIM_OC_Stop(&TimHandle, TIM_CHANNEL_3);
/* Channel1 configuration */
/* Same configuration as the previous step */
/* Channel2 configuration */
sConfig.OCMode = TIM_OCMODE_PWM1;
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_2);
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_2);
uwStep++;
}
else if (uwStep == 5)
{
/* Next step: Step 6 Configuration -------------------------------------- */
/* Channel3 configuration */
sConfig.OCMode = TIM_OCMODE_PWM1;
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_3);
HAL_TIMEx_OCN_Start(&TimHandle, TIM_CHANNEL_3);
/* Channel1 configuration */
HAL_TIMEx_OCN_Stop(&TimHandle, TIM_CHANNEL_1);
/* Channel2 configuration */
/* Same configuration as the previous step */
uwStep++;
}
else
{
/* Next step: Step 1 Configuration -------------------------------------- */
/* Channel1 configuration */
sConfig.OCMode = TIM_OCMODE_PWM1;
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_1);
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1);
/* Channel3 configuration */
/* Same configuration as the previous step */
/* Channel2 configuration */
HAL_TIM_OC_Stop(&TimHandle, TIM_CHANNEL_2);
uwStep = 1;
}
}
/**
* @brief This function is executed in case of error occurrence.
* @param None
* @retval None
*/
static void Error_Handler(void)
{
/* Turn LED3 on */
BSP_LED_On(LED3);
while(1)
{
}
}
/**
* @brief System Clock Configuration
* The system Clock is configured as follow :
* System Clock source = PLL (HSE)
* SYSCLK(Hz) = 168000000
* HCLK(Hz) = 168000000
* AHB Prescaler = 1
* APB1 Prescaler = 4
* APB2 Prescaler = 2
* HSE Frequency(Hz) = 25000000
* PLL_M = 25
* PLL_N = 336
* PLL_P = 2
* PLL_Q = 7
* VDD(V) = 3.3
* Main regulator output voltage = Scale1 mode
* Flash Latency(WS) = 5
* @param None
* @retval None
*/
static void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
/* Enable Power Control clock */
__HAL_RCC_PWR_CLK_ENABLE();
/* The voltage scaling allows optimizing the power consumption when the device is
clocked below the maximum system frequency, to update the voltage scaling value
regarding system frequency refer to product datasheet. */
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/* Enable HSE Oscillator and activate PLL with HSE as source */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 25;
RCC_OscInitStruct.PLL.PLLN = 336;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
clocks dividers */
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
/* STM32F405x/407x/415x/417x Revision Z and upper devices: prefetch is supported */
if (HAL_GetREVID() >= 0x1001)
{
/* Enable the Flash prefetch */
__HAL_FLASH_PREFETCH_BUFFER_ENABLE();
}
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
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