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wmano
2025-08-16 22:58:22 +08:00
commit 52a3ed5862
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apps/boot/stm32f4xx_hal_msp.c
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#include "main.h"
extern DMA_HandleTypeDef hdma_usart1_rx;
extern DMA_HandleTypeDef hdma_usart2_rx;
void HAL_MspInit (void)
{
__HAL_RCC_SYSCFG_CLK_ENABLE();
__HAL_RCC_PWR_CLK_ENABLE();
}
void HAL_UART_MspInit (UART_HandleTypeDef* huart)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if (huart->Instance == USART1) {
__HAL_RCC_USART1_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
// PA9 ------> USART1_TX
// PA10 ------> USART1_RX
GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
hdma_usart1_rx.Instance = DMA2_Stream2;
hdma_usart1_rx.Init.Channel = DMA_CHANNEL_4;
hdma_usart1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_usart1_rx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_usart1_rx.Init.MemInc = DMA_MINC_ENABLE;
hdma_usart1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_usart1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_usart1_rx.Init.Mode = DMA_CIRCULAR;
hdma_usart1_rx.Init.Priority = DMA_PRIORITY_MEDIUM;
hdma_usart1_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
HAL_DMA_Init(&hdma_usart1_rx);
__HAL_LINKDMA(huart, hdmarx, hdma_usart1_rx);
HAL_NVIC_SetPriority(USART1_IRQn, 1, 0);
HAL_NVIC_EnableIRQ(USART1_IRQn);
} else if (huart->Instance == USART2) {
__HAL_RCC_USART2_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
// PA2 ------> USART2_TX
// PA3 ------> USART2_RX
GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
hdma_usart2_rx.Instance = DMA1_Stream5;
hdma_usart2_rx.Init.Channel = DMA_CHANNEL_4;
hdma_usart2_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_usart2_rx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_usart2_rx.Init.MemInc = DMA_MINC_ENABLE;
hdma_usart2_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_usart2_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_usart2_rx.Init.Mode = DMA_CIRCULAR;
hdma_usart2_rx.Init.Priority = DMA_PRIORITY_MEDIUM;
hdma_usart2_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
HAL_DMA_Init(&hdma_usart2_rx);
__HAL_LINKDMA(huart, hdmarx, hdma_usart2_rx);
HAL_NVIC_SetPriority(USART2_IRQn, 1, 0);
HAL_NVIC_EnableIRQ(USART2_IRQn);
}
}
void HAL_UART_MspDeInit (UART_HandleTypeDef* huart)
{
if (huart->Instance == USART1) {
__HAL_RCC_USART1_CLK_DISABLE();
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
HAL_DMA_DeInit(huart->hdmarx);
HAL_NVIC_DisableIRQ(USART1_IRQn);
} else if (huart->Instance == USART2) {
__HAL_RCC_USART2_CLK_DISABLE();
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_2|GPIO_PIN_3);
HAL_DMA_DeInit(huart->hdmarx);
HAL_NVIC_DisableIRQ(USART2_IRQn);
}
}