usart and timer interrupt

lakshmikantha85 · ‎2011-03-04

Posted on March 04, 2011 at 15:15

ColdWeather · ‎2011-05-17

Posted on May 17, 2011 at 14:26

Hi!

I think, the main problem in your program is a bad programming style. For instance, in the TIM3 ISR:

First:

// if(TIM3->SR && 0x01)flag = 1;

should look like

if (TIM3->SR & 0x01) flag = 1;

Yes, I see, the line is commented out, but at the same time is a clear demonstration of potential mistakes.

Second:

The assignment

num_bytes = i;

- where is ''i'' declared and/or initialized?

And so on.