The MCU that I used well does not work.All newly loaded MCUs are the same.The same is true after programming a hex file to the MCU using the ST-LINK Utility.The most commonly used tools are TrueStudio and STM32CubeMX.Halt occurs after MCU is loaded a...

I tried to transmit LIN communication data using HAL_LIN_SendBreak and 0x55 sync byte.The setting is 19200 bps,​ N, 8, 1​I've looked at an example using stm32Fx but it's not.​The program is in progress using TrueStudio.I would appreciate your help if...