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LED PWM

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This commit is contained in:
Jasper Blanckenburg
2022-08-17 08:45:48 +02:00
committed by jazzpi
parent ec9fa4bb0f
commit 38590d433b
7 changed files with 154 additions and 20 deletions
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4
Core/Inc/leds.h
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@ -1,6 +1,8 @@
#ifndef __LEDS_H
#define __LEDS_H
void leds_init();
#include "stm32g4xx_hal.h"
void leds_init(TIM_HandleTypeDef* timer);
#endif // __LEDS_H

4
Core/Inc/main.h
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@ -49,6 +49,8 @@ extern "C" {
/* USER CODE END EM */
void HAL_TIM_MspPostInit(TIM_HandleTypeDef* htim);
/* Exported functions prototypes ---------------------------------------------*/
void Error_Handler(void);
@ -96,7 +98,7 @@ void Error_Handler(void);
#define ENC1B_Pin GPIO_PIN_7
#define ENC1B_GPIO_Port GPIOB
/* USER CODE BEGIN Private defines */
#define TOP_PWM_TIM_CHANNEL TIM_CHANNEL_1
/* USER CODE END Private defines */
#ifdef __cplusplus

2
Core/Inc/stm32g4xx_hal_conf.h
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@ -62,7 +62,7 @@
/*#define HAL_SMBUS_MODULE_ENABLED */
/*#define HAL_SPI_MODULE_ENABLED */
/*#define HAL_SRAM_MODULE_ENABLED */
/*#define HAL_TIM_MODULE_ENABLED */
#define HAL_TIM_MODULE_ENABLED
/*#define HAL_UART_MODULE_ENABLED */
/*#define HAL_USART_MODULE_ENABLED */
/*#define HAL_WWDG_MODULE_ENABLED */

10
Core/Src/leds.c
View File

@ -4,17 +4,21 @@
#include "stm32g4xx_hal.h"
#include "stm32g4xx_hal_gpio.h"
#include "stm32g4xx_hal_tim.h"
void leds_init(TIM_HandleTypeDef* timer) {
if (HAL_TIM_PWM_Start(timer, TOP_PWM_TIM_CHANNEL) != HAL_OK) {
Error_Handler();
}
void leds_init() {
HAL_GPIO_WritePin(LED_NOE_GPIO_Port, LED_NOE_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(LED_NCLR_GPIO_Port, LED_NCLR_Pin, GPIO_PIN_SET);
HAL_GPIO_WritePin(LED_OCLK_GPIO_Port, LED_OCLK_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(LED_ICLK_GPIO_Port, LED_ICLK_Pin, GPIO_PIN_RESET);
HAL_GPIO_WritePin(TOP_PWM_GPIO_Port, TOP_PWM_Pin, GPIO_PIN_SET);
HAL_Delay(10);
for (int i = 0; i < 12; i++) {
GPIO_PinState state = (i % 2 == 0) ? GPIO_PIN_SET : GPIO_PIN_RESET;
GPIO_PinState state = GPIO_PIN_RESET;
HAL_GPIO_WritePin(LED_SER_GPIO_Port, LED_SER_Pin, state);
HAL_Delay(5);
HAL_GPIO_WritePin(LED_ICLK_GPIO_Port, LED_ICLK_Pin, GPIO_PIN_SET);

66
Core/Src/main.c
View File

@ -55,6 +55,8 @@ FDCAN_HandleTypeDef hfdcan1;
I2C_HandleTypeDef hi2c2;
TIM_HandleTypeDef htim2;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
@ -65,6 +67,7 @@ static void MX_GPIO_Init(void);
static void MX_ADC1_Init(void);
static void MX_FDCAN1_Init(void);
static void MX_I2C2_Init(void);
static void MX_TIM2_Init(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
@ -105,8 +108,9 @@ int main(void) {
MX_ADC1_Init();
MX_FDCAN1_Init();
MX_I2C2_Init();
MX_TIM2_Init();
/* USER CODE BEGIN 2 */
leds_init();
leds_init(&htim2);
state_init();
vehicle_init(&hfdcan1);
rpi_init(&hi2c2);
@ -323,6 +327,50 @@ static void MX_I2C2_Init(void) {
/* USER CODE END I2C2_Init 2 */
}
/**
* @brief TIM2 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM2_Init(void) {
/* USER CODE BEGIN TIM2_Init 0 */
/* USER CODE END TIM2_Init 0 */
TIM_MasterConfigTypeDef sMasterConfig = {0};
TIM_OC_InitTypeDef sConfigOC = {0};
/* USER CODE BEGIN TIM2_Init 1 */
/* USER CODE END TIM2_Init 1 */
htim2.Instance = TIM2;
htim2.Init.Prescaler = 79;
htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
htim2.Init.Period = 255;
htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_PWM_Init(&htim2) != HAL_OK) {
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK) {
Error_Handler();
}
sConfigOC.OCMode = TIM_OCMODE_PWM1;
sConfigOC.Pulse = 31;
sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
if (HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_1) != HAL_OK) {
Error_Handler();
}
/* USER CODE BEGIN TIM2_Init 2 */
/* USER CODE END TIM2_Init 2 */
HAL_TIM_MspPostInit(&htim2);
}
/**
* @brief GPIO Initialization Function
* @param None
@ -337,17 +385,15 @@ static void MX_GPIO_Init(void) {
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOA,
TOP_PWM_Pin | LOGO_PWM_Pin | LED_ICLK_Pin | LED_OCLK_Pin |
LED_NCLR_Pin | LED_SER_Pin | LED_NOE_Pin |
DISP_RESET_Pin,
LOGO_PWM_Pin | LED_ICLK_Pin | LED_OCLK_Pin | LED_NCLR_Pin |
LED_SER_Pin | LED_NOE_Pin | DISP_RESET_Pin,
GPIO_PIN_RESET);
/*Configure GPIO pins : TOP_PWM_Pin LOGO_PWM_Pin LED_ICLK_Pin LED_OCLK_Pin
LED_NCLR_Pin LED_SER_Pin LED_NOE_Pin DISP_RESET_Pin
*/
GPIO_InitStruct.Pin = TOP_PWM_Pin | LOGO_PWM_Pin | LED_ICLK_Pin |
LED_OCLK_Pin | LED_NCLR_Pin | LED_SER_Pin |
LED_NOE_Pin | DISP_RESET_Pin;
/*Configure GPIO pins : LOGO_PWM_Pin LED_ICLK_Pin LED_OCLK_Pin LED_NCLR_Pin
LED_SER_Pin LED_NOE_Pin DISP_RESET_Pin */
GPIO_InitStruct.Pin = LOGO_PWM_Pin | LED_ICLK_Pin | LED_OCLK_Pin |
LED_NCLR_Pin | LED_SER_Pin | LED_NOE_Pin |
DISP_RESET_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;

74
Core/Src/stm32g4xx_hal_msp.c
View File

@ -57,7 +57,9 @@
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
void HAL_TIM_MspPostInit(TIM_HandleTypeDef *htim);
/**
* Initializes the Global MSP.
*/
void HAL_MspInit(void)
@ -315,6 +317,76 @@ void HAL_I2C_MspDeInit(I2C_HandleTypeDef* hi2c)
}
/**
* @brief TIM_PWM MSP Initialization
* This function configures the hardware resources used in this example
* @param htim_pwm: TIM_PWM handle pointer
* @retval None
*/
void HAL_TIM_PWM_MspInit(TIM_HandleTypeDef* htim_pwm)
{
if(htim_pwm->Instance==TIM2)
{
/* USER CODE BEGIN TIM2_MspInit 0 */
/* USER CODE END TIM2_MspInit 0 */
/* Peripheral clock enable */
__HAL_RCC_TIM2_CLK_ENABLE();
/* USER CODE BEGIN TIM2_MspInit 1 */
/* USER CODE END TIM2_MspInit 1 */
}
}
void HAL_TIM_MspPostInit(TIM_HandleTypeDef* htim)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if(htim->Instance==TIM2)
{
/* USER CODE BEGIN TIM2_MspPostInit 0 */
/* USER CODE END TIM2_MspPostInit 0 */
__HAL_RCC_GPIOA_CLK_ENABLE();
/**TIM2 GPIO Configuration
PA0 ------> TIM2_CH1
*/
GPIO_InitStruct.Pin = TOP_PWM_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF1_TIM2;
HAL_GPIO_Init(TOP_PWM_GPIO_Port, &GPIO_InitStruct);
/* USER CODE BEGIN TIM2_MspPostInit 1 */
/* USER CODE END TIM2_MspPostInit 1 */
}
}
/**
* @brief TIM_PWM MSP De-Initialization
* This function freeze the hardware resources used in this example
* @param htim_pwm: TIM_PWM handle pointer
* @retval None
*/
void HAL_TIM_PWM_MspDeInit(TIM_HandleTypeDef* htim_pwm)
{
if(htim_pwm->Instance==TIM2)
{
/* USER CODE BEGIN TIM2_MspDeInit 0 */
/* USER CODE END TIM2_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_TIM2_CLK_DISABLE();
/* USER CODE BEGIN TIM2_MspDeInit 1 */
/* USER CODE END TIM2_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */