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96 lines
3.0 KiB
96 lines
3.0 KiB
//
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// Created by iflyt on 2025/3/19.
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//
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#include "uart_cmd.h"
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UART_HandleTypeDef huart2;
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DMA_HandleTypeDef hdma_usart2_rx;
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DMA_HandleTypeDef hdma_usart2_tx;
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void CMD_UART_Init() {
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__HAL_RCC_USART2_CLK_ENABLE();
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__HAL_RCC_GPIOD_CLK_ENABLE();
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huart2.Instance = USART2;
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huart2.Init.BaudRate = 115200;
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huart2.Init.WordLength = UART_WORDLENGTH_8B;
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huart2.Init.StopBits = UART_STOPBITS_1;
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huart2.Init.Parity = UART_PARITY_NONE;
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huart2.Init.Mode = UART_MODE_TX_RX;
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huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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huart2.Init.OverSampling = UART_OVERSAMPLING_16;
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if (HAL_UART_Init(&huart2) != HAL_OK)
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{
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Error_Handler();
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}
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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/**USART2 GPIO Configuration
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PD5 ------> USART2_TX
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PD6 ------> USART2_RX
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*/
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GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
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HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
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/* USART2 DMA Init */
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/* USART2_RX Init */
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hdma_usart2_rx.Instance = DMA1_Stream5;
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hdma_usart2_rx.Init.Channel = DMA_CHANNEL_4;
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hdma_usart2_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
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hdma_usart2_rx.Init.PeriphInc = DMA_PINC_DISABLE;
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hdma_usart2_rx.Init.MemInc = DMA_MINC_ENABLE;
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hdma_usart2_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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hdma_usart2_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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hdma_usart2_rx.Init.Mode = DMA_NORMAL;
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hdma_usart2_rx.Init.Priority = DMA_PRIORITY_LOW;
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hdma_usart2_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
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if (HAL_DMA_Init(&hdma_usart2_rx) != HAL_OK)
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{
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Error_Handler();
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}
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__HAL_LINKDMA(&huart2,hdmarx,hdma_usart2_rx);
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/* USART2_TX Init */
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hdma_usart2_tx.Instance = DMA1_Stream6;
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hdma_usart2_tx.Init.Channel = DMA_CHANNEL_4;
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hdma_usart2_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
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hdma_usart2_tx.Init.PeriphInc = DMA_PINC_DISABLE;
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hdma_usart2_tx.Init.MemInc = DMA_MINC_ENABLE;
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hdma_usart2_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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hdma_usart2_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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hdma_usart2_tx.Init.Mode = DMA_NORMAL;
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hdma_usart2_tx.Init.Priority = DMA_PRIORITY_LOW;
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hdma_usart2_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
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if (HAL_DMA_Init(&hdma_usart2_tx) != HAL_OK)
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{
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Error_Handler();
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}
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__HAL_LINKDMA(&huart2,hdmatx,hdma_usart2_tx);
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/* USART2 interrupt Init */
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HAL_NVIC_SetPriority(USART2_IRQn, 5, 0);
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HAL_NVIC_EnableIRQ(USART2_IRQn);
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}
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void CMD_DMA_Init() {
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/* DMA controller clock enable */
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__HAL_RCC_DMA1_CLK_ENABLE();
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/* DMA interrupt init */
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/* DMA1_Stream5_IRQn interrupt configuration */
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HAL_NVIC_SetPriority(DMA1_Stream5_IRQn, 5, 0);
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HAL_NVIC_EnableIRQ(DMA1_Stream5_IRQn);
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/* DMA1_Stream6_IRQn interrupt configuration */
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HAL_NVIC_SetPriority(DMA1_Stream6_IRQn, 5, 0);
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HAL_NVIC_EnableIRQ(DMA1_Stream6_IRQn);
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}
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