Hardword: STM32F0_DiscoveryDevelop_Kit: Keil5.30+STM32CubeMXI define the printf function in main.c as below:#include "stdio.h"#ifdef __GNUC__ #define PUTCHAR_PROTOTYPE int __io_putchar (int ch)#else #define PUTCHAR_PROTOTYPE int fputc(int ch,FILE *f)...

when I use the DMA functions as below:HAL_UART_Transmit_DMA(&huart1,(uint8_t *)aTxStartMessage,sizeof(aTxStartMessage));HAL_Delay(10000);In PC side,It always display such symbols at the hand of the aTxStartMessage after the first success reciever. Wh...

MCU:STM32F0discoveryTools:STM32CubeMX5.6.1+Keil5.3OS: Windows 10proQuestion:When I use the PLC system`s interrupt, always the interrupt just trigger once in the first scan time.But in the MCU system, I find that the interrupt can be triggered by the ...

MCU:STM32F0Discovery boardTools:STM32CubeMX+Keil5.30Test condition: PC_SerialComm tools & FT232 chip boardAfter trying the HAL_UART_RxHalfCpltCallback Function, I find that this function couldn`t be used in the normal transmit in UART_Comm.And would ...