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/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2019-07-06 heyuanjie87 the first version
*/
#include <board.h>
#include <rtdevice.h>
#include <rthw.h>
#ifdef BSP_USING_UART1
#define USART1_RX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOA_CLK_ENABLE()
#define USART1_TX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOA_CLK_ENABLE()
/* Definition for USART1 Pins */
#define USART1_TX_PIN GPIO_PIN_10
#define USART1_TX_GPIO_PORT GPIOA
#define USART1_TX_AF GPIO_AF7_USART1
#define USART1_RX_PIN GPIO_PIN_9
#define USART1_RX_GPIO_PORT GPIOA
#define USART1_RX_AF GPIO_AF7_USART1
#define USART1_RDE_GPIO_CLK_ENABLE() __HAL_RCC_GPIOD_CLK_ENABLE()
#define USART1_RDE_PIN GPIO_PIN_3
#define USART1_RDE_GPIO_PORT GPIOD
#endif
#ifdef BSP_USING_UART2
#define USART2_RX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOA_CLK_ENABLE()
#define USART2_TX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOA_CLK_ENABLE()
/* Definition for USART2 Pins */
#define USART2_TX_PIN GPIO_PIN_2
#define USART2_TX_GPIO_PORT GPIOA
#define USART2_TX_AF GPIO_AF7_USART2
#define USART2_RX_PIN GPIO_PIN_3
#define USART2_RX_GPIO_PORT GPIOA
#define USART2_RX_AF GPIO_AF7_USART2
#endif
#ifdef BSP_USING_UART3
#define USART3_RX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
#define USART3_TX_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE()
/* Definition for USART3 Pins */
#define USART3_TX_PIN GPIO_PIN_10
#define USART3_TX_GPIO_PORT GPIOB
#define USART3_TX_AF GPIO_AF7_USART3
#define USART3_RX_PIN GPIO_PIN_11
#define USART3_RX_GPIO_PORT GPIOB
#define USART3_RX_AF GPIO_AF7_USART3
#endif
/**
* @brief UART MSP Initialization
* This function configures the hardware resources used in this example:
* - Peripheral's clock enable
* - Peripheral's GPIO Configuration
* - NVIC configuration for UART interrupt request enable
* @param huart: UART handle pointer
* @retval None
*/
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
GPIO_InitTypeDef GPIO_InitStruct;
#if defined(BSP_USING_UART1)
if (huart->Instance == USART1)
{
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* Enable GPIO TX/RX clock */
USART1_TX_GPIO_CLK_ENABLE();
USART1_RX_GPIO_CLK_ENABLE();
/* Enable USARTx clock */
__HAL_RCC_USART1_CLK_ENABLE();
/*##-2- Configure peripheral GPIO ##########################################*/
/* UART TX GPIO pin configuration */
GPIO_InitStruct.Pin = USART1_TX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = USART1_TX_AF;
HAL_GPIO_Init(USART1_TX_GPIO_PORT, &GPIO_InitStruct);
/* UART RX GPIO pin configuration */
GPIO_InitStruct.Pin = USART1_RX_PIN;
GPIO_InitStruct.Alternate = USART1_RX_AF;
HAL_GPIO_Init(USART1_RX_GPIO_PORT, &GPIO_InitStruct);
/* rs485 rde */
USART1_RDE_GPIO_CLK_ENABLE();
GPIO_InitStruct.Pin = USART1_RDE_PIN;
GPIO_InitStruct.Alternate = 0;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
HAL_GPIO_Init(USART1_RDE_GPIO_PORT, &GPIO_InitStruct);
}
#endif
#if defined(BSP_USING_UART2)
if (huart->Instance == USART2)
{
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* Enable GPIO TX/RX clock */
USART2_TX_GPIO_CLK_ENABLE();
USART2_RX_GPIO_CLK_ENABLE();
/* Enable USARTx clock */
__HAL_RCC_USART2_CLK_ENABLE();
/*##-2- Configure peripheral GPIO ##########################################*/
/* UART TX GPIO pin configuration */
GPIO_InitStruct.Pin = USART2_TX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = USART2_TX_AF;
HAL_GPIO_Init(USART2_TX_GPIO_PORT, &GPIO_InitStruct);
/* UART RX GPIO pin configuration */
GPIO_InitStruct.Pin = USART2_RX_PIN;
GPIO_InitStruct.Alternate = USART2_RX_AF;
HAL_GPIO_Init(USART2_RX_GPIO_PORT, &GPIO_InitStruct);
}
#endif
#if defined(BSP_USING_UART3)
if (huart->Instance == USART3)
{
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* Enable GPIO TX/RX clock */
USART3_TX_GPIO_CLK_ENABLE();
USART3_RX_GPIO_CLK_ENABLE();
/* Enable USARTx clock */
__HAL_RCC_USART3_CLK_ENABLE();
/*##-2- Configure peripheral GPIO ##########################################*/
/* UART TX GPIO pin configuration */
GPIO_InitStruct.Pin = USART3_TX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = USART3_TX_AF;
HAL_GPIO_Init(USART3_TX_GPIO_PORT, &GPIO_InitStruct);
/* UART RX GPIO pin configuration */
GPIO_InitStruct.Pin = USART3_RX_PIN;
GPIO_InitStruct.Alternate = USART3_RX_AF;
HAL_GPIO_Init(USART3_RX_GPIO_PORT, &GPIO_InitStruct);
}
#endif
}
/**
* @brief UART MSP De-Initialization
* This function frees the hardware resources used in this example:
* - Disable the Peripheral's clock
* - Revert GPIO and NVIC configuration to their default state
* @param huart: UART handle pointer
* @retval None
*/
void HAL_UART_MspDeInit(UART_HandleTypeDef *huart)
{
#if defined(BSP_USING_UART1)
if (huart->Instance == USART1)
{
/*##-1- Reset peripherals ##################################################*/
__HAL_RCC_USART1_FORCE_RESET();
__HAL_RCC_USART1_RELEASE_RESET();
/*##-2- Disable peripherals and GPIO Clocks #################################*/
/* Configure UART Tx as alternate function */
HAL_GPIO_DeInit(USART1_TX_GPIO_PORT, USART1_TX_PIN);
/* Configure UART Rx as alternate function */
HAL_GPIO_DeInit(USART1_RX_GPIO_PORT, USART1_RX_PIN);
HAL_NVIC_DisableIRQ(USART1_IRQn);
}
#endif
#if defined(BSP_USING_UART2)
if (huart->Instance == USART2)
{
/*##-1- Reset peripherals ##################################################*/
__HAL_RCC_USART2_FORCE_RESET();
__HAL_RCC_USART2_RELEASE_RESET();
/*##-2- Disable peripherals and GPIO Clocks #################################*/
/* Configure UART Tx as alternate function */
HAL_GPIO_DeInit(USART2_TX_GPIO_PORT, USART2_TX_PIN);
/* Configure UART Rx as alternate function */
HAL_GPIO_DeInit(USART2_RX_GPIO_PORT, USART2_RX_PIN);
HAL_NVIC_DisableIRQ(USART2_IRQn);
}
#endif
#if defined(BSP_USING_UART3)
if (huart->Instance == USART3)
{
/*##-1- Reset peripherals ##################################################*/
__HAL_RCC_USART3_FORCE_RESET();
__HAL_RCC_USART3_RELEASE_RESET();
/*##-2- Disable peripherals and GPIO Clocks #################################*/
/* Configure UART Tx as alternate function */
HAL_GPIO_DeInit(USART3_TX_GPIO_PORT, USART3_TX_PIN);
/* Configure UART Rx as alternate function */
HAL_GPIO_DeInit(USART3_RX_GPIO_PORT, USART3_RX_PIN);
HAL_NVIC_DisableIRQ(USART3_IRQn);
}
#endif
}
void stm32_uart_rde(USART_TypeDef *ins, int m)
{
if (ins == USART1)
{
if (m)
HAL_GPIO_WritePin(USART1_RDE_GPIO_PORT, USART1_RDE_PIN, 0);
else
HAL_GPIO_WritePin(USART1_RDE_GPIO_PORT, USART1_RDE_PIN, 1);
}
}
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