static void uart_irq(UARTName uart_name)
{
int8_t id = get_uart_index(uart_name);
if (id >= 0) {
UART_HandleTypeDef *huart = &uart_handlers[id];
if (serial_irq_ids[id] != 0) {
if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TXE) != RESET) {
if (__HAL_UART_GET_IT(huart, UART_IT_TXE) != RESET) {
irq_handler(serial_irq_ids[id], TxIrq);
}
}
if (__HAL_UART_GET_FLAG(huart, UART_FLAG_RXNE) != RESET) {
if (__HAL_UART_GET_IT(huart, UART_IT_RXNE) != RESET) {
irq_handler(serial_irq_ids[id], RxIrq);
/* Flag has been cleared when reading the content */
}
}
if (__HAL_UART_GET_FLAG(huart, UART_FLAG_ORE) != RESET) {
if (__HAL_UART_GET_IT(huart, UART_IT_ORE) != RESET) {
__HAL_UART_CLEAR_IT(huart, UART_CLEAR_OREF);
}
}
}
}
}
static void uart_irq(UARTName uart_name)
{
int8_t id = get_uart_index(uart_name);
if (id >= 0) {
UART_HandleTypeDef * huart = &uart_handlers[id];
if (serial_irq_ids[id] != 0) {
if (__HAL_UART_GET_FLAG(huart, UART_FLAG_TXE) != RESET) {
if (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_TXE) != RESET) {
irq_handler(serial_irq_ids[id], TxIrq);
}
}
if (__HAL_UART_GET_FLAG(huart, UART_FLAG_RXNE) != RESET) {
if (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_RXNE) != RESET) {
irq_handler(serial_irq_ids[id], RxIrq);
/* Flag has been cleared when reading the content */
}
}
if (__HAL_UART_GET_FLAG(huart, UART_FLAG_ORE) != RESET) {
if (__HAL_UART_GET_IT_SOURCE(huart, USART_IT_ERR) != RESET) {
volatile uint32_t tmpval __attribute__((unused)) = huart->Instance->DR; // Clear ORE flag
}
}
}
}
}
void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart) {
if (__HAL_UART_GET_FLAG(huart, UART_FLAG_PE) != RESET) {
volatile uint32_t tmpval = huart->Instance->DR; // Clear PE flag
} else if (__HAL_UART_GET_FLAG(huart, UART_FLAG_FE) != RESET) {
volatile uint32_t tmpval = huart->Instance->DR; // Clear FE flag
} else if (__HAL_UART_GET_FLAG(huart, UART_FLAG_NE) != RESET) {
volatile uint32_t tmpval = huart->Instance->DR; // Clear NE flag
} else if (__HAL_UART_GET_FLAG(huart, UART_FLAG_ORE) != RESET) {
volatile uint32_t tmpval = huart->Instance->DR; // Clear ORE flag
}
}
static void uart_irq(UARTName name, int id) {
UartHandle.Instance = (USART_TypeDef *)name;
if (serial_irq_ids[id] != 0) {
if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
irq_handler(serial_irq_ids[id], TxIrq);
__HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TC);
}
if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
irq_handler(serial_irq_ids[id], RxIrq);
volatile uint32_t tmpval = UartHandle.Instance->RDR; // Clear RXNE bit
}
}
}
static void uart_irq(UARTName name, int id) {
UartHandle.Instance = (USART_TypeDef *)name;
if (serial_irq_ids[id] != 0) {
if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
irq_handler(serial_irq_ids[id], TxIrq);
__HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TC);
}
if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
irq_handler(serial_irq_ids[id], RxIrq);
__HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
}
}
}
void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart) {
if (__HAL_UART_GET_FLAG(huart, UART_FLAG_PE) != RESET) {
__HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_PEF);
}
if (__HAL_UART_GET_FLAG(huart, UART_FLAG_FE) != RESET) {
__HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_FEF);
}
if (__HAL_UART_GET_FLAG(huart, UART_FLAG_NE) != RESET) {
__HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_NEF);
}
if (__HAL_UART_GET_FLAG(huart, UART_FLAG_ORE) != RESET) {
__HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF);
}
}
U32 End_uart_send(UCHAR end_id, UCHAR* txbuf, USHORT txnum )
{
UART_HandleTypeDef *UARTx;
P_UART_CCB p_uc;
UCHAR send_byte=0;
if( txnum < 1 )
{
return FALSE;
}
switch(end_id)
{
case PC_COM_PORT:
UARTx = &PC_UART;
break;
case RS485_COM_PORT:
UARTx= &RS485_UART;
break;
case PLC_COM_PORT:
UARTx = &PLC_UART;
break;
default:
return FALSE;
}
p_uc = &g_uart_ccb[end_id];
p_uc->gpUartTxAddress = txbuf;
p_uc->gUartTxCnt = txnum;
send_byte = *(p_uc->gpUartTxAddress);
p_uc->gpUartTxAddress++;
p_uc->gUartTxCnt--;
while(RESET == __HAL_UART_GET_FLAG(UARTx, UART_FLAG_TXE)); //关键
UARTx->Instance->DR = (send_byte & (uint8_t)0xFF);
while(RESET == __HAL_UART_GET_FLAG(UARTx, UART_FLAG_TC)); //关键
if(p_uc->gUartTxCnt)
__HAL_UART_ENABLE_IT(UARTx, UART_IT_TXE);
return TRUE;
};
static void uart_irq(uint8_t id)
{
UART_HandleTypeDef *handle = &UartHandle[id];
if (serial_irq_ids[id] != 0) {
if (__HAL_UART_GET_FLAG(handle, UART_FLAG_TC) != RESET) {
irq_handlers[id](serial_irq_ids[id], TxIrq);
__HAL_UART_CLEAR_FLAG(handle, UART_FLAG_TC);
}
if (__HAL_UART_GET_FLAG(handle, UART_FLAG_RXNE) != RESET) {
irq_handlers[id](serial_irq_ids[id], RxIrq);
__HAL_UART_CLEAR_FLAG(handle, UART_FLAG_RXNE);
}
}
}
// this IRQ handler is set up to handle RXNE interrupts only
void uart_irq_handler(mp_uint_t uart_id) {
// get the uart object
pyb_uart_obj_t *self = MP_STATE_PORT(pyb_uart_obj_all)[uart_id - 1];
if (self == NULL) {
// UART object has not been set, so we can't do anything, not
// even disable the IRQ. This should never happen.
return;
}
if (__HAL_UART_GET_FLAG(&self->uart, UART_FLAG_RXNE) != RESET) {
if (self->read_buf_len != 0) {
uint16_t next_head = (self->read_buf_head + 1) % self->read_buf_len;
if (next_head != self->read_buf_tail) {
// only read data if room in buf
#if defined(STM32F7) || defined(STM32L4) || defined(STM32H7)
int data = self->uart.Instance->RDR; // clears UART_FLAG_RXNE
#else
int data = self->uart.Instance->DR; // clears UART_FLAG_RXNE
#endif
data &= self->char_mask;
if (self->char_width == CHAR_WIDTH_9BIT) {
((uint16_t*)self->read_buf)[self->read_buf_head] = data;
} else {
self->read_buf[self->read_buf_head] = data;
}
self->read_buf_head = next_head;
} else { // No room: leave char in buf, disable interrupt
__HAL_UART_DISABLE_IT(&self->uart, UART_IT_RXNE);
}
}
}
}
mp_uint_t uart_rx_any(pyb_uart_obj_t *uart_obj) {
#if 0
return __HAL_UART_GET_FLAG(&uart_obj->uart, UART_FLAG_RXNE);
#else
return 0;
#endif
}
bool uart_rx_any(pyb_uart_obj_t *uart_obj) {
#if 0
return __HAL_UART_GET_FLAG(&uart_obj->uart, UART_FLAG_RXNE);
#else
return false;
#endif
}
static int uart_stm32_fifo_read(struct device *dev, uint8_t *rx_data,
const int size)
{
struct uart_stm32_data *data = DEV_DATA(dev);
UART_HandleTypeDef *UartHandle = &data->huart;
uint8_t num_rx = 0;
while ((size - num_rx > 0) && __HAL_UART_GET_FLAG(UartHandle,
UART_FLAG_RXNE)) {
/* Clear the interrupt */
__HAL_UART_CLEAR_FLAG(UartHandle, UART_FLAG_RXNE);
/* Receive a character (8bit , parity none) */
#if defined(CONFIG_SOC_SERIES_STM32F1X) || defined(CONFIG_SOC_SERIES_STM32F4X)
/* Use direct access for F1, F4 until Low Level API is available
* Once it is we can remove the if/else
*/
rx_data[num_rx++] = (uint8_t)(UartHandle->Instance->DR &
(uint8_t)0x00FF);
#else
rx_data[num_rx++] = LL_USART_ReceiveData8(UartHandle->Instance);
#endif
}
return num_rx;
}
// this IRQ handler is set up to handle RXNE interrupts only
void uart_irq_handler(mp_uint_t uart_id) {
// get the uart object
pyb_uart_obj_t *self = MP_STATE_PORT(pyb_uart_obj_all)[uart_id - 1];
if (self == NULL) {
// UART object has not been set, so we can't do anything, not
// even disable the IRQ. This should never happen.
return;
}
if (__HAL_UART_GET_FLAG(&self->uart, UART_FLAG_RXNE) != RESET) {
#if defined(MCU_SERIES_F7)
int data = self->uart.Instance->RDR; // clears UART_FLAG_RXNE
#else
int data = self->uart.Instance->DR; // clears UART_FLAG_RXNE
#endif
data &= self->char_mask;
if (self->read_buf_len != 0) {
uint16_t next_head = (self->read_buf_head + 1) % self->read_buf_len;
if (next_head != self->read_buf_tail) {
// only store data if room in buf
if (self->char_width == CHAR_WIDTH_9BIT) {
((uint16_t*)self->read_buf)[self->read_buf_head] = data;
} else {
self->read_buf[self->read_buf_head] = data;
}
self->read_buf_head = next_head;
}
} else {
// TODO set flag for buffer overflow
}
}
}
static int uart_stm32_fifo_fill(struct device *dev, const uint8_t *tx_data,
int size)
{
struct uart_stm32_data *data = DEV_DATA(dev);
UART_HandleTypeDef *UartHandle = &data->huart;
uint8_t num_tx = 0;
while ((size - num_tx > 0) && __HAL_UART_GET_FLAG(UartHandle,
UART_FLAG_TXE)) {
/* TXE flag will be cleared with byte write to DR register */
/* Send a character (8bit , parity none) */
#if defined(CONFIG_SOC_SERIES_STM32F1X) || defined(CONFIG_SOC_SERIES_STM32F4X)
/* Use direct access for F1, F4 until Low Level API is available
* Once it is we can remove the if/else
*/
UartHandle->Instance->DR = (tx_data[num_tx++] &
(uint8_t)0x00FF);
#else
LL_USART_TransmitData8(UartHandle->Instance, tx_data[num_tx++]);
#endif
}
return num_tx;
}
int serial_writable(serial_t *obj) {
int status;
UartHandle.Instance = (USART_TypeDef *)(obj->uart);
// Check if data is transmitted
status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
return status;
}
static int uart_stm32_irq_is_pending(struct device *dev)
{
struct uart_stm32_data *data = DEV_DATA(dev);
UART_HandleTypeDef *UartHandle = &data->huart;
return __HAL_UART_GET_FLAG(UartHandle, UART_FLAG_TXE | UART_FLAG_RXNE);
}
int serial_readable(serial_t *obj) {
int status;
UartHandle.Instance = (USART_TypeDef *)(obj->uart);
// Check if data is received
status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
return status;
}
int serial_readable(serial_t *obj)
{
struct serial_s *obj_s = SERIAL_S(obj);
UART_HandleTypeDef *huart = &uart_handlers[obj_s->index];
// Check if data is received
return (__HAL_UART_GET_FLAG(huart, UART_FLAG_RXNE) != RESET) ? 1 : 0;
}
int uart_putc(int port, char c)
{
while (__HAL_UART_GET_FLAG(&handle, UART_FLAG_TXE) == RESET)
;
handle.Instance->TDR = (c & (uint8_t)0xFF);
return 1;
}
int serial_readable(serial_t *obj)
{
int status;
UART_HandleTypeDef *handle = &UartHandle[SERIAL_OBJ(index)];
// Check if data is received
status = ((__HAL_UART_GET_FLAG(handle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
return status;
}
int serial_writable(serial_t *obj)
{
int status;
UART_HandleTypeDef *handle = &UartHandle[SERIAL_OBJ(index)];
// Check if data is transmitted
status = ((__HAL_UART_GET_FLAG(handle, UART_FLAG_TXE) != RESET) ? 1 : 0);
return status;
}
int serial_writable(serial_t *obj)
{
struct serial_s *obj_s = SERIAL_S(obj);
UART_HandleTypeDef *huart = &uart_handlers[obj_s->index];
// Check if data is transmitted
return (__HAL_UART_GET_FLAG(huart, UART_FLAG_TXE) != RESET) ? 1 : 0;
}
mp_uint_t uart_rx_any(pyb_uart_obj_t *self) {
int buffer_bytes = self->read_buf_head - self->read_buf_tail;
if (buffer_bytes < 0) {
return buffer_bytes + self->read_buf_len;
} else if (buffer_bytes > 0) {
return buffer_bytes;
} else {
return __HAL_UART_GET_FLAG(&self->uart, UART_FLAG_RXNE) != RESET;
}
}
void UART_Send_Data(uint8_t* Buf, uint16_t Len)
{
uint16_t i;
for (i=0;i<Len;i++)
{
huart3.Instance->DR = *(Buf + i);
while (__HAL_UART_GET_FLAG(&huart3, UART_FLAG_TXE) == RESET){}//TX empty
}
}
static int drv_putc(struct rt_serial_device *serial, char c)
{
struct drv_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = (struct drv_uart *)serial->parent.user_data;
while((__HAL_UART_GET_FLAG(&uart->UartHandle, UART_FLAG_TXE) == RESET));
uart->UartHandle.Instance->DR = c;
return 1;
}
/**
* @brief This function handles USART1 global interrupt.
*/
void USART1_IRQHandler(void)
{
uint8_t tmp1,tmp2;
tmp1 = __HAL_UART_GET_FLAG(&huart1, UART_FLAG_RXNE);
tmp2 = __HAL_UART_GET_IT_SOURCE(&huart1, UART_IT_RXNE);
if((tmp1 != RESET) && (tmp2 != RESET))
{
RxBuffer[RxBufferHead] = UART_ReceiveData(&huart1);
RxBufferHead = (RxBufferHead + 1) % RX_BUFFER_SIZE;
}
}
// Waits at most timeout milliseconds for at least 1 char to become ready for
// reading (from buf or for direct reading).
// Returns true if something available, false if not.
STATIC bool uart_rx_wait(pyb_uart_obj_t *self, uint32_t timeout) {
uint32_t start = HAL_GetTick();
for (;;) {
if (self->read_buf_tail != self->read_buf_head || __HAL_UART_GET_FLAG(&self->uart, UART_FLAG_RXNE) != RESET) {
return true; // have at least 1 char ready for reading
}
if (HAL_GetTick() - start >= timeout) {
return false; // timeout
}
__WFI();
}
}
/**
* @brief This function handles UART interrupt request.
* @param huart: pointer to a UART_HandleTypeDef structure that contains
* the configuration information for the specified UART module.
* @retval None
*/
void vUARTIRQHandler(UART_HandleTypeDef *pxUARTHandle)
{
uint32_t tmp1 = 0, tmp2 = 0;
tmp1 = __HAL_UART_GET_FLAG(pxUARTHandle, UART_FLAG_RXNE);
tmp2 = __HAL_UART_GET_IT_SOURCE(pxUARTHandle, UART_IT_RXNE);
/* UART in mode Receiver ---------------------------------------------------*/
if((tmp1 != RESET) && (tmp2 != RESET))
{
vUARTReceive(pxUARTHandle);
}
}
/*====================================================================================================*/
int8_t UART_RecvByteWTO( UART_HandleTypeDef *huart, uint8_t *recvData, uint32_t timeout )
{
while(!__HAL_UART_GET_FLAG(huart, UART_FLAG_RXNE)) {
if(timeout-- > 0)
HAL_Delay(1);
else
return ERROR; // timeout
}
*recvData = (uint16_t)(huart->Instance->DR & (uint16_t)0x01FF);
return SUCCESS;
}
// Waits at most timeout milliseconds for TX register to become empty.
// Returns true if can write, false if can't.
STATIC bool uart_tx_wait(pyb_uart_obj_t *self, uint32_t timeout) {
uint32_t start = HAL_GetTick();
for (;;) {
if (__HAL_UART_GET_FLAG(&self->uart, UART_FLAG_TXE)) {
return true; // tx register is empty
}
if (HAL_GetTick() - start >= timeout) {
return false; // timeout
}
__WFI();
}
}