/**
* @brief UART MSP Initialization
* This function configures the hardware resources used in this example:
* - Peripheral's clock enable
* - Peripheral's GPIO Configuration
* @param huart: UART handle pointer
* @retval None
*/
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
GPIO_InitTypeDef GPIO_InitStruct;
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* Enable GPIO TX/RX clock */
USARTx_TX_GPIO_CLK_ENABLE();
USARTx_RX_GPIO_CLK_ENABLE();
/* Enable USARTx clock */
USARTx_CLK_ENABLE();
/*##-2- Configure peripheral GPIO ##########################################*/
/* UART TX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_TX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
GPIO_InitStruct.Alternate = USARTx_TX_AF;
HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);
/* UART RX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_RX_PIN;
GPIO_InitStruct.Alternate = USARTx_RX_AF;
HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
}
void prvHardwareUartGpioInit(UART_HandleTypeDef *huart)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* Enable GPIO TX/RX clock */
USARTx_TX_GPIO_CLK_ENABLE();
USARTx_RX_GPIO_CLK_ENABLE();
/* Enable USARTx clock */
USARTx_CLK_ENABLE();
/* UART TX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_TX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = USARTx_TX_AF;
HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);
/* UART RX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_RX_PIN;
GPIO_InitStruct.Alternate = USARTx_RX_AF;
HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
}
/**
* @brief UART MSP Initialization
* This function configures the hardware resources used in this example:
* - Peripheral's clock enable
* - Peripheral's GPIO Configuration
* @param huart: UART handle pointer
* @retval None
*/
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
GPIO_InitTypeDef GPIO_InitStruct;
RCC_PeriphCLKInitTypeDef RCC_PeriphClkInit;
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* Enable GPIO TX/RX clock */
USARTx_TX_GPIO_CLK_ENABLE();
USARTx_RX_GPIO_CLK_ENABLE();
/* Select SysClk as source of USART1 clocks */
RCC_PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
RCC_PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_SYSCLK;
HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphClkInit);
/* Enable USARTx clock */
USARTx_CLK_ENABLE();
/*##-2- Configure peripheral GPIO ##########################################*/
/* UART TX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_TX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = USARTx_TX_AF;
HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);
/* UART RX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_RX_PIN;
GPIO_InitStruct.Alternate = USARTx_RX_AF;
HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
}
/**
* @brief UART MSP Initialization
* This function configures the hardware resources used in this example:
* - Peripheral's clock enable
* - Peripheral's GPIO Configuration
* @param huart: UART handle pointer
* @retval None
*/
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
GPIO_InitTypeDef GPIO_InitStruct;
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* Enable GPIO TX/RX clock */
USARTx_TX_GPIO_CLK_ENABLE();
USARTx_RX_GPIO_CLK_ENABLE();
/* Enable USARTx clock */
USARTx_CLK_ENABLE();
/*##-2- Configure peripheral GPIO ##########################################*/
/* UART TX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_TX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);
/* UART RX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_RX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
HAL_NVIC_SetPriority(USARTx_IRQn, 0, 1);
HAL_NVIC_EnableIRQ(USARTx_IRQn);
}
uart::uart ( void)
{
huart.Instance = USARTx;
huart.Init.BaudRate = 115200;
huart.Init.WordLength = UART_WORDLENGTH_8B;
huart.Init.StopBits = UART_STOPBITS_1;
huart.Init.Parity = UART_PARITY_NONE;
huart.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart.Init.Mode = UART_MODE_TX_RX;
huart.Init.OverSampling = UART_OVERSAMPLING_16;
GPIO_InitTypeDef GPIO_InitStruct;
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* Enable GPIO TX/RX clock */
USARTx_TX_GPIO_CLK_ENABLE();
USARTx_RX_GPIO_CLK_ENABLE();
/* Enable USART1 clock */
USARTx_CLK_ENABLE();
/*##-2- Configure peripheral GPIO ##########################################*/
/* UART TX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_TX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
GPIO_InitStruct.Alternate = USARTx_TX_AF;
HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);
/* UART RX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_RX_PIN;
GPIO_InitStruct.Alternate = USARTx_RX_AF;
HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
/*##-3- Configure the NVIC for UART ########################################*/
/* NVIC for USARTx */
HAL_NVIC_SetPriority(USARTx_IRQn, 0, 1);
HAL_NVIC_EnableIRQ(USARTx_IRQn);
if( HAL_UART_Init( &huart) != HAL_OK)
asm("bkpt 0");
HAL_StatusTypeDef status;
status=HAL_UART_Receive_IT( &huart, (uint8_t *)0x01, 1); // dummy call to switch RX on
if( status != HAL_OK)
asm("bkpt 0");
}
/**
* @brief Configure the USART
* @param None
* @retval None
*/
void USARTConfig()
{
/* Enable peripherals and GPIO Clocks */
/* Enable GPIO TX/RX clock */
USARTx_TX_GPIO_CLK_ENABLE();
USARTx_RX_GPIO_CLK_ENABLE();
/* Enable USART2 clock */
USARTx_CLK_ENABLE();
/*Configure peripheral GPIO */
UartGpioConfig();
/* Put the USART peripheral in the Asynchronous mode (UART Mode) */
/* UART1 configured as follow:
- Word Length = 8 Bits
- Stop Bit = One Stop bit
- Parity = None
- BaudRate = 'Usart_BaudRate' baud
- Hardware flow control disabled (RTS and CTS signals) */
UartHandle.Instance = USARTx;
UartHandle.Init.BaudRate = USART_BAUD_RATE;
UartHandle.Init.WordLength = UART_WORDLENGTH_8B;
UartHandle.Init.StopBits = UART_STOPBITS_1;
UartHandle.Init.Parity = UART_PARITY_NONE;
UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
UartHandle.Init.Mode = UART_MODE_TX_RX;
if ( HAL_UART_Init( &UartHandle ) != HAL_OK )
{
while(1);
}
UartHandle.pRxBuffPtr = (uint8_t *)UART_RxBuffer;
UartHandle.RxXferSize = UART_BufferSize;
UartHandle.ErrorCode = HAL_UART_ERROR_NONE;
}
void HAL_UART_MspInit(UART_HandleTypeDef *huart) {
(void)huart;
USARTx_TX_GPIO_CLK_ENABLE();
USARTx_RX_GPIO_CLK_ENABLE();
USARTx_CLK_ENABLE();
GPIO_InitTypeDef gpio_init = {
.Pin = USARTx_TX_PIN,
.Mode = GPIO_MODE_AF_PP,
.Pull = GPIO_PULLUP,
.Speed = GPIO_SPEED_FAST,
.Alternate = USARTx_TX_AF,
};
HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &gpio_init);
gpio_init.Pin = USARTx_RX_PIN;
gpio_init.Alternate = USARTx_RX_AF;
HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &gpio_init);
// Insert rx / tx DMA here
HAL_NVIC_SetPriority(USARTx_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(USARTx_IRQn);
}
/**
* @brief UART MSP Initialization
* This function configures the hardware resources used in this example:
* - Peripheral's clock enable
* - Peripheral's GPIO Configuration
* - DMA configuration for transmission request by peripheral
* - NVIC configuration for DMA interrupt request enable
* @param huart: UART handle pointer
* @retval None
*/
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
static DMA_HandleTypeDef hdma_tx;
static DMA_HandleTypeDef hdma_rx;
GPIO_InitTypeDef GPIO_InitStruct;
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* Enable GPIO TX/RX clock */
USARTx_TX_GPIO_CLK_ENABLE();
USARTx_RX_GPIO_CLK_ENABLE();
/* Enable USARTx clock */
USARTx_CLK_ENABLE();
/* Enable DMA clock */
DMAx_CLK_ENABLE();
/*##-2- Configure peripheral GPIO ##########################################*/
/* UART TX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_TX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
GPIO_InitStruct.Alternate = USARTx_TX_AF;
HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);
/* UART RX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_RX_PIN;
GPIO_InitStruct.Alternate = USARTx_RX_AF;
HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
/*##-3- Configure the DMA ##################################################*/
/* Configure the DMA handler for Transmission process */
hdma_tx.Instance = USARTx_TX_DMA_CHANNEL;
hdma_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_tx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_tx.Init.MemInc = DMA_MINC_ENABLE;
hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_tx.Init.Mode = DMA_NORMAL;
hdma_tx.Init.Priority = DMA_PRIORITY_LOW;
hdma_tx.Init.Request = USARTx_TX_DMA_REQUEST;
HAL_DMA_Init(&hdma_tx);
/* Associate the initialized DMA handle to the UART handle */
__HAL_LINKDMA(huart, hdmatx, hdma_tx);
/* Configure the DMA handler for reception process */
hdma_rx.Instance = USARTx_RX_DMA_CHANNEL;
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_NORMAL;
hdma_rx.Init.Priority = DMA_PRIORITY_HIGH;
hdma_rx.Init.Request = USARTx_RX_DMA_REQUEST;
HAL_DMA_Init(&hdma_rx);
/* Associate the initialized DMA handle to the the UART handle */
__HAL_LINKDMA(huart, hdmarx, hdma_rx);
/*##-4- Configure the NVIC for DMA #########################################*/
/* NVIC configuration for DMA transfer complete interrupt (USART2_TX) */
HAL_NVIC_SetPriority(USARTx_DMA_TX_IRQn, 0, 1);
HAL_NVIC_EnableIRQ(USARTx_DMA_TX_IRQn);
/* NVIC configuration for DMA transfer complete interrupt (USART2_RX) */
HAL_NVIC_SetPriority(USARTx_DMA_RX_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(USARTx_DMA_RX_IRQn);
/* NVIC for USART, to catch the TX complete */
HAL_NVIC_SetPriority(USARTx_IRQn, 0, 1);
HAL_NVIC_EnableIRQ(USARTx_IRQn);
}
/**
* @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)
{
static DMA_HandleTypeDef hdma_tx;
GPIO_InitTypeDef GPIO_InitStruct;
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* Enable GPIO clock */
USARTx_TX_GPIO_CLK_ENABLE();
USARTx_RX_GPIO_CLK_ENABLE();
/* Remap AFIO if needed */
AFIOCOMx_CLK_ENABLE(0);
AFIOCOMx_REMAP(0);
/* Enable USARTx clock */
USARTx_CLK_ENABLE();
/*##-2- Configure peripheral GPIO ##########################################*/
/* UART TX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_TX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);
/* UART RX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_RX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
/*##-3- Configure the NVIC for UART ########################################*/
HAL_NVIC_SetPriority(USARTx_IRQn, 5, 0);
HAL_NVIC_EnableIRQ(USARTx_IRQn);
/* Enable DMAx clock */
DMAx_CLK_ENABLE();
/*##-4- Configure the DMA streams ##########################################*/
/* Configure the DMA handler for Transmission process */
hdma_tx.Instance = USARTx_TX_DMA_STREAM;
hdma_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_tx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_tx.Init.MemInc = DMA_MINC_ENABLE;
hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_tx.Init.Mode = DMA_NORMAL;
hdma_tx.Init.Priority = DMA_PRIORITY_LOW;
HAL_DMA_Init(&hdma_tx);
/* Associate the initialized DMA handle to the UART handle */
__HAL_LINKDMA(huart, hdmatx, hdma_tx);
/*##-5- Configure the NVIC for DMA #########################################*/
/* NVIC configuration for DMA transfer complete interrupt (USARTx_TX) */
HAL_NVIC_SetPriority(USARTx_DMA_TX_IRQn, 6, 0);
HAL_NVIC_EnableIRQ(USARTx_DMA_TX_IRQn);
/*##-6- Enable TIM peripherals Clock #######################################*/
TIMx_CLK_ENABLE();
/*##-7- Configure the NVIC for TIMx ########################################*/
/* Set Interrupt Group Priority */
HAL_NVIC_SetPriority(TIMx_IRQn, 6, 0);
/* Enable the TIMx global Interrupt */
HAL_NVIC_EnableIRQ(TIMx_IRQn);
}
/**
* @brief UART MSP Initialization
* This function configures the hardware resources used in this example:
* - Peripheral's clock enable
* - Peripheral's GPIO Configuration
* - DMA configuration for transmission request by peripheral
* - NVIC configuration for DMA interrupt request enable
* @param huart: UART handle pointer
* @retval None
*/
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
static DMA_HandleTypeDef hdma_tx;
static DMA_HandleTypeDef hdma_rx;
RCC_PeriphCLKInitTypeDef RCC_PeriphClkInit;
GPIO_InitTypeDef GPIO_InitStruct;
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* Enable GPIO clock */
USARTx_TX_GPIO_CLK_ENABLE();
USARTx_RX_GPIO_CLK_ENABLE();
/* Select SysClk as source of USART1 clocks */
RCC_PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
RCC_PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_SYSCLK;
HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphClkInit);
/* Enable USARTx clock */
USARTx_CLK_ENABLE();
/* Enable DMA clock */
DMAx_CLK_ENABLE();
/*##-2- Configure peripheral GPIO ##########################################*/
/* UART TX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_TX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
GPIO_InitStruct.Alternate = USARTx_TX_AF;
HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);
/* UART RX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_RX_PIN;
GPIO_InitStruct.Alternate = USARTx_RX_AF;
HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
/*##-3- Configure the DMA ##################################################*/
/* Configure the DMA handler for Transmission process */
hdma_tx.Instance = USARTx_TX_DMA_STREAM;
hdma_tx.Init.Channel = USARTx_TX_DMA_CHANNEL;
hdma_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_tx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_tx.Init.MemInc = DMA_MINC_ENABLE;
hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_tx.Init.Mode = DMA_NORMAL;
hdma_tx.Init.Priority = DMA_PRIORITY_LOW;
hdma_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
hdma_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
hdma_tx.Init.MemBurst = DMA_MBURST_INC4;
hdma_tx.Init.PeriphBurst = DMA_PBURST_INC4;
HAL_DMA_Init(&hdma_tx);
/* Associate the initialized DMA handle to the UART handle */
__HAL_LINKDMA(huart, hdmatx, hdma_tx);
/* Configure the DMA handler for reception process */
hdma_rx.Instance = USARTx_RX_DMA_STREAM;
hdma_rx.Init.Channel = USARTx_RX_DMA_CHANNEL;
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_NORMAL;
hdma_rx.Init.Priority = DMA_PRIORITY_HIGH;
hdma_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
hdma_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
hdma_rx.Init.MemBurst = DMA_MBURST_INC4;
hdma_rx.Init.PeriphBurst = DMA_PBURST_INC4;
HAL_DMA_Init(&hdma_rx);
/* Associate the initialized DMA handle to the the UART handle */
__HAL_LINKDMA(huart, hdmarx, hdma_rx);
/*##-4- Configure the NVIC for DMA #########################################*/
/* NVIC configuration for DMA transfer complete interrupt (USARTx_TX) */
HAL_NVIC_SetPriority(USARTx_DMA_TX_IRQn, 0, 1);
HAL_NVIC_EnableIRQ(USARTx_DMA_TX_IRQn);
/* NVIC configuration for DMA transfer complete interrupt (USARTx_RX) */
HAL_NVIC_SetPriority(USARTx_DMA_RX_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(USARTx_DMA_RX_IRQn);
/* NVIC configuration for DMA transfer complete interrupt (USARTx_RX) */
HAL_NVIC_SetPriority(USART1_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(USART1_IRQn);
}
/**
* @brief Configure the USART
* @retval None
*/
void USARTConfig(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* Enable GPIO TX/RX clock */
USARTx_TX_GPIO_CLK_ENABLE();
USARTx_RX_GPIO_CLK_ENABLE();
/* Enable USART2 clock */
USARTx_CLK_ENABLE();
/* Enable DMA1 clock */
DMAx_CLK_ENABLE();
/*##-2- Configure peripheral GPIO ##########################################*/
/* UART TX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_TX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
#if ((defined (USE_STM32F4XX_NUCLEO)) || (defined (USE_STM32L0XX_NUCLEO)))
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
#endif
#if (defined (USE_STM32L1XX_NUCLEO))
GPIO_InitStruct.Speed = GPIO_SPEED_MEDIUM;
#endif
GPIO_InitStruct.Alternate = USARTx_TX_AF;
HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);
/* UART RX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_RX_PIN;
GPIO_InitStruct.Alternate = USARTx_RX_AF;
HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
/*##-1- Configure the UART peripheral ######################################*/
/* Put the USART peripheral in the Asynchronous mode (UART Mode) */
UartHandle.Instance = USARTx;
UartHandle.Init.BaudRate = Usart_BaudRate;
UartHandle.Init.WordLength = UART_WORDLENGTH_8B;
UartHandle.Init.StopBits = UART_STOPBITS_1;
UartHandle.Init.Parity = UART_PARITY_NONE;
UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
UartHandle.Init.Mode = UART_MODE_TX_RX;
if(HAL_UART_Init(&UartHandle) != HAL_OK)
{
// Error_Handler();
while(1);
}
USART_DMA_Configuration();
UartHandle.pRxBuffPtr = (uint8_t*)UART_RxBuffer;
UartHandle.RxXferSize = UART_RxBufferSize;
UartHandle.ErrorCode = HAL_UART_ERROR_NONE;
/* Enable the DMA transfer for the receiver request by setting the DMAR bit
in the UART CR3 register */
HAL_UART_Receive_DMA(&UartHandle, (uint8_t*)UART_RxBuffer, UART_RxBufferSize);
}
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
GPIO_InitTypeDef GPIO_InitStruct;
if( huart == &UartHandle ){
/*##-1- Enable peripherals and GPIO Clocks #################################*/
DMAx_CLK_ENABLE();
/* Enable GPIO TX/RX clock */
USARTx_TX_GPIO_CLK_ENABLE();
USARTx_RX_GPIO_CLK_ENABLE();
/* Enable USART2 clock */
USARTx_CLK_ENABLE();
/* Enable DMA1 clock */
/*##-2- Configure peripheral GPIO ##########################################*/
/* UART TX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_TX_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
GPIO_InitStruct.Alternate = USARTx_TX_AF;
HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);
/* UART RX GPIO pin configuration */
GPIO_InitStruct.Pin = USARTx_RX_PIN;
GPIO_InitStruct.Alternate = USARTx_RX_AF;
HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
/*##-3- Configure the DMA streams ##########################################*/
/* Configure the DMA handler for Transmission process */
hdma_tx.Instance = USARTx_TX_DMA_STREAM;
hdma_tx.Init.Channel = USARTx_TX_DMA_CHANNEL;
hdma_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_tx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_tx.Init.MemInc = DMA_MINC_ENABLE;
hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_tx.Init.Mode = DMA_NORMAL;
hdma_tx.Init.Priority = DMA_PRIORITY_LOW;
hdma_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
hdma_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
hdma_tx.Init.MemBurst = DMA_MBURST_INC4;
hdma_tx.Init.PeriphBurst = DMA_PBURST_INC4;
HAL_DMA_Init(&hdma_tx);
/* Associate the initialized DMA handle to the the UART handle */
__HAL_LINKDMA(huart, hdmatx, hdma_tx);
/* Configure the DMA handler for Transmission process */
hdma_rx.Instance = USARTx_RX_DMA_STREAM;
hdma_rx.Init.Channel = USARTx_RX_DMA_CHANNEL;
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_HIGH;
hdma_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
hdma_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
hdma_rx.Init.MemBurst = DMA_MBURST_INC4;
hdma_rx.Init.PeriphBurst = DMA_PBURST_INC4;
HAL_DMA_Init(&hdma_rx);
/* Associate the initialized DMA handle to the the UART handle */
__HAL_LINKDMA(huart, hdmarx, hdma_rx);
/*##-4- Configure the NVIC for DMA #########################################*/
/* NVIC configuration for DMA transfer complete interrupt (USARTx_TX) */
HAL_NVIC_SetPriority(USARTx_DMA_TX_IRQn, 5, 3);
HAL_NVIC_EnableIRQ(USARTx_DMA_TX_IRQn);
/* NVIC configuration for DMA transfer complete interrupt (USARTx_RX) */
//HAL_NVIC_SetPriority(USARTx_DMA_RX_IRQn, 5, 2);
//HAL_NVIC_EnableIRQ(USARTx_DMA_RX_IRQn);
/* NVIC configuration for USART TC interrupt */
HAL_NVIC_SetPriority(USARTx_IRQn, 6, 1);
HAL_NVIC_EnableIRQ(USARTx_IRQn);
}
}
