I'm fairly new to the world of STM32 and embedded C, and i've been playing with a STM32F401 recently.
I'm using the HAL UART driver to set a serial communication with my computer through the port COM3, and I have a few questions :
1. It took me a good while before transmitting data correctly. I believe my configuration was good but for some reason, the terminal was displaying only the fist character from my chain. I managed to sort it out by inserting a 1ms delay in the HAL_UART_Transmit driver,each time we have receive one byte. I assume it's not necessary since it wasn't in the original driver but would anyone have an idea of what is hapenning, and what i misunderstand ?
2. When trying to receive data using HAL_UART_Receive, I manage to reveive data byte by byte, but if I entry more than one character (so a chain), the function return only the first character and then go to timeout. I have a feeling there is some timing issue there but I'd like to understand what I am doing wrong and what I misunderstand.
I can add code if you think there is value, but I'd say it's more a theoretical issue.
Also, i'm now gonna look at implementing this with interupt since I beleive it will be more adequate.
Thanks a lot,