ECOHIM/RS485_Relay2_fw
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RS485 UART переделал на DMA по образцу HVD4

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This commit is contained in:
Alexander Kurmis
2022-10-19 23:51:50 +03:00
parent e226faa454
commit 3803869521
12 changed files with 191 additions and 200 deletions
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21
Core/Src/main.c
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@@ -47,6 +47,8 @@ TIM_HandleTypeDef htim1;
TIM_HandleTypeDef htim3;
UART_HandleTypeDef huart1;
DMA_HandleTypeDef hdma_usart1_rx;
DMA_HandleTypeDef hdma_usart1_tx;
/* USER CODE BEGIN PV */
@@ -55,6 +57,7 @@ UART_HandleTypeDef huart1;
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_TIM3_Init(void);
static void MX_USART1_UART_Init(void);
static void MX_TIM1_Init(void);
@@ -95,11 +98,11 @@ int main(void)
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_DMA_Init();
MX_TIM3_Init();
MX_USART1_UART_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */
__HAL_UART_ENABLE_IT(&huart1, UART_IT_RXNE); // включить прерывания usart'a
HAL_TIM_Base_Start_IT(&htim1);
/* USER CODE END 2 */
@@ -290,6 +293,22 @@ static void MX_USART1_UART_Init(void)
}
/**
* Enable DMA controller clock
*/
static void MX_DMA_Init(void)
{
/* DMA controller clock enable */
__HAL_RCC_DMA1_CLK_ENABLE();
/* DMA interrupt init */
/* DMA1_Channel2_3_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA1_Channel2_3_IRQn, 2, 0);
HAL_NVIC_EnableIRQ(DMA1_Channel2_3_IRQn);
}
/**
* @brief GPIO Initialization Function
* @param None