/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file usart.c
* @brief This file provides code for the configuration
* of the USART instances.
******************************************************************************
* @attention
*
* Copyright (c) 2024 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.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "usart.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
UART_HandleTypeDef huart3;
DMA_HandleTypeDef hdma_usart3_rx;
/* USART3 init function */
void MX_USART3_UART_Init(void)
{
/* USER CODE BEGIN USART3_Init 0 */
/* USER CODE END USART3_Init 0 */
/* USER CODE BEGIN USART3_Init 1 */
//256000*4
/* USER CODE END USART3_Init 1 */
huart3.Instance = USART3;
huart3.Init.BaudRate = 9600*2;
huart3.Init.WordLength = UART_WORDLENGTH_8B;
huart3.Init.StopBits = UART_STOPBITS_1;
huart3.Init.Parity = UART_PARITY_NONE;
huart3.Init.Mode = UART_MODE_TX_RX;
huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart3.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart3) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART3_Init 2 */
/* USER CODE END USART3_Init 2 */
}
void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if(uartHandle->Instance==USART3)
{
/* USER CODE BEGIN USART3_MspInit 0 */
/* USER CODE END USART3_MspInit 0 */
/* USART3 clock enable */
__HAL_RCC_USART3_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/**USART3 GPIO Configuration
PB10 ------> USART3_TX
PB11 ------> USART3_RX
*/
GPIO_InitStruct.Pin = GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_11;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* USART3 DMA Init */
/* USART3_RX Init */
hdma_usart3_rx.Instance = DMA1_Channel3;
hdma_usart3_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_usart3_rx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_usart3_rx.Init.MemInc = DMA_MINC_ENABLE;
hdma_usart3_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_usart3_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_usart3_rx.Init.Mode = DMA_CIRCULAR;
hdma_usart3_rx.Init.Priority = DMA_PRIORITY_LOW;
if (HAL_DMA_Init(&hdma_usart3_rx) != HAL_OK)
{
Error_Handler();
}
__HAL_LINKDMA(uartHandle,hdmarx,hdma_usart3_rx);
/* USART3 interrupt Init */
HAL_NVIC_SetPriority(USART3_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(USART3_IRQn);
/* USER CODE BEGIN USART3_MspInit 1 */
/* USER CODE END USART3_MspInit 1 */
}
}
void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
{
if(uartHandle->Instance==USART3)
{
/* USER CODE BEGIN USART3_MspDeInit 0 */
/* USER CODE END USART3_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_USART3_CLK_DISABLE();
/**USART3 GPIO Configuration
PB10 ------> USART3_TX
PB11 ------> USART3_RX
*/
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_10|GPIO_PIN_11);
/* USART3 DMA DeInit */
HAL_DMA_DeInit(uartHandle->hdmarx);
/* USART3 interrupt Deinit */
HAL_NVIC_DisableIRQ(USART3_IRQn);
/* USER CODE BEGIN USART3_MspDeInit 1 */
/* USER CODE END USART3_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
// CUSTOM UART INIT
//void User_UART_Init(UART_HandleTypeDef* huart, DMA_HandleTypeDef *DMAhuart, struct UARTSettings *uuart)
//{ // function takes uart handler, dma handler and setting structure for init
//
// // get setting for uart from UARTSettings structure
// huart->Instance = uuart->UARTx;
// huart->Init.BaudRate = uuart->UART_Speed*2;
//
// // everything else is default (for now, maybe this settings would be added in UARTSettings structure later)
// huart->Init.WordLength = UART_WORDLENGTH_8B;
// huart->Init.StopBits = UART_STOPBITS_1;
// huart->Init.Parity = UART_PARITY_NONE;
// huart->Init.Mode = UART_MODE_TX_RX;
// huart->Init.HwFlowCtl = UART_HWCONTROL_NONE;
// huart->Init.OverSampling = UART_OVERSAMPLING_16;
// if (HAL_UART_Init(huart) != HAL_OK)
// {
// Error_Handler();
// }
//
// // init gpio from UARTSettings structure
// UART_GPIO_Init(uuart->GPIOx, uuart->GPIO_PIN_RX, uuart->GPIO_PIN_TX);
// // init dma from UARTSettings structure if need
// if (uuart->DMAChannel != 0)
// UART_DMA_Init(huart, DMAhuart, uuart->DMAChannel);
//}
//void UART_GPIO_Init(GPIO_TypeDef *GPIOx, uint16_t GPIO_PIN_RX, uint16_t GPIO_PIN_TX)
//{ // function takes port and pins (for rx and tx)
// GPIO_InitTypeDef GPIO_InitStruct = {0};
//
// // choose port for enable clock
// if (GPIOx==GPIOA)
// __HAL_RCC_GPIOA_CLK_ENABLE();
// else if (GPIOx==GPIOB)
// __HAL_RCC_GPIOB_CLK_ENABLE();
// else if (GPIOx==GPIOC)
// __HAL_RCC_GPIOC_CLK_ENABLE();
// else if (GPIOx==GPIOD)
// __HAL_RCC_GPIOD_CLK_ENABLE();
//
//// USART3 GPIO Configuration
////GPIO_PIN_TX ------> USART_TX
// GPIO_InitStruct.Pin = GPIO_PIN_TX;
// GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
// GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
// HAL_GPIO_Init(GPIOx, &GPIO_InitStruct);
//// GPIO_PIN_RX ------> USART_RX
// GPIO_InitStruct.Pin = GPIO_PIN_RX;
// GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
// GPIO_InitStruct.Pull = GPIO_NOPULL;
// HAL_GPIO_Init(GPIOx, &GPIO_InitStruct);
//}
//void UART_DMA_Init(UART_HandleTypeDef *huart, DMA_HandleTypeDef *hdma_rx, DMA_Channel_TypeDef *DMAhuart)
//{ // function takes uart and dma handlers and dmachannel for uart
// // for now only dma rx is supported, tx maybe later if needed
//
// /* USART3 DMA Init */
// /* USART3_RX Init */
// hdma_rx->Instance = DMAhuart;
// hdma_rx->Init.Direction = DMA_PERIPH_TO_MEMORY;
// hdma_rx->Init.PeriphInc = DMA_PINC_DISABLE;
// hdma_rx->Init.MemInc = DMA_MINC_ENABLE;
// hdma_rx->Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
// hdma_rx->Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
// hdma_rx->Init.Mode = DMA_CIRCULAR;
// hdma_rx->Init.Priority = DMA_PRIORITY_LOW;
// if (HAL_DMA_Init(hdma_rx) != HAL_OK)
// {
// Error_Handler();
// }
// __USER_LINKDMA(huart,hdmarx,hdma_rx);
// // __USER_LINKDMA is need because __HAL_LINKDMA is written for global defined hdma_rx
// // so you get error because hal uses . insted of ->
//}
//void HAL_UART_MspInit(UART_HandleTypeDef* huart) // redefine hal function
//{ // left only rcc and interrupt init for USART_1,2,3 (maybe UART_4,5 need to be added)
// // GPIO and DMA init was move to their own functions
// if(huart->Instance==USART3)
// {
// /* USART3 clock enable */
// __HAL_RCC_USART3_CLK_ENABLE();
//
// /* USART3 interrupt Init */
// HAL_NVIC_SetPriority(USART3_IRQn, 0, 0);
// HAL_NVIC_EnableIRQ(USART3_IRQn);
// }
// else if(huart->Instance==USART2)
// {
// /* USART3 clock enable */
// __HAL_RCC_USART2_CLK_ENABLE();
//
// /* USART3 interrupt Init */
// HAL_NVIC_SetPriority(USART2_IRQn, 0, 0);
// HAL_NVIC_EnableIRQ(USART2_IRQn);
// }
// else if(huart->Instance==USART1)
// {
// /* USART3 clock enable */
// __HAL_RCC_USART1_CLK_ENABLE();
//
// /* USART3 interrupt Init */
// HAL_NVIC_SetPriority(USART1_IRQn, 0, 0);
// HAL_NVIC_EnableIRQ(USART1_IRQn);
// }
//}
/* USER CODE END 1 */