ChibiOS, STM32 and chprintf

[rpcaldeira]

Hey guys! I'm having a small problem, but I'm sure that this will be a piece of cake for you guys.

I have outputs that are sent at least with a second apart, but they are only printed at the same time. Is there any way to force the flushing of the stdout buffer?

Thanks in advance for your help!

Rui

[Giovanni]

There is no stdout buffer using chprintf() the transmission begins as soon the first char is inserted in the output queue.

Giovanni

[rpcaldeira]

And there is a dedicated thread that handles that queue?

It's because I'm writing in one thread and then I put that thread to sleep and the feeling i'm getting is that the output is only being written after that thread goes to sleep

Rui

[Giovanni]

No dedicated thread, the queue is emptied by an ISR. This makes me thing you could have a thread with disabled ISRs, you should enable the debug options in chconf.h and see if something is reported. The state checker should find that kind of errors.

Giovanni

[rpcaldeira]

Thanks, I will try that