Hi all,
I'm truying to adapt one file coming fromm stm32f4 discovery board for using UART. But when I try to add it to my STM NUCLEO L452RE board I got an error :
../Drivers/BSP/uart.c:328:63: error: 'USART_TypeDef' has no member named 'DR'; did you mean 'RDR'?
328 | data = (uint8_t) ((uint16_t) (s_uart1Handle.Instance->DR & (uint16_t) 0x01FF) & (uint16_t) 0x00FF);
| ^~
| RDR
void USART1_IRQHandler(void)
{
uint8_t data;
uint16_t usedCapacityOfBuffer = 0;
uint16_t realCountPutBuffer = 0;
if (__HAL_UART_GET_IT_SOURCE(&s_uart1Handle, UART_IT_RXNE) != RESET &&
__HAL_UART_GET_FLAG(&s_uart1Handle, UART_FLAG_RXNE) != RESET) {
data = (uint8_t) ((uint16_t) (s_uart1Handle.Instance->DR & (uint16_t) 0x01FF) & (uint16_t) 0x00FF);
realCountPutBuffer = RingBuf_Put(&s_uart1ReadRingBuffer, &data, 1);
usedCapacityOfBuffer = UART1_READ_BUF_SIZE - RingBuf_GetUnusedSize(&s_uart1ReadRingBuffer);
s_uart1ReadBufferState.maxUsedCapacityOfBuffer =
usedCapacityOfBuffer > s_uart1ReadBufferState.maxUsedCapacityOfBuffer ? usedCapacityOfBuffer
: s_uart1ReadBufferState.maxUsedCapacityOfBuffer;
s_uart1ReadBufferState.countOfLostData += 1 - realCountPutBuffer;
}
if (__HAL_UART_GET_IT_SOURCE(&s_uart1Handle, UART_IT_TXE) != RESET &&
__HAL_UART_GET_FLAG(&s_uart1Handle, UART_FLAG_TXE) != RESET) {
if (RingBuf_Get(&s_uart1WriteRingBuffer, &data, 1)) {
/* Transmit Data */
s_uart1Handle.Instance->DR = ((uint16_t) data & (uint16_t) 0x01FF);
} else {
__HAL_UART_DISABLE_IT(&s_uart1Handle, UART_IT_TXE);
}
}
}
Do you think I can change DR by RDR? What is the difference, I've lookin for but I don't find good explaination...
Should I used TDR for transmit and RDR for receive maybe ?
Thanks
