USART2 Interrupt occur just one time or too late or never. (stm32f10 Keil)

Hello there. I have a homework to do stopwatch, but I'm having a few problems. In code there are 4 button interrupt(B0-B3), 1 timer1 interrupt for 1 ms and USART2 interrupt. Buttons and timer interrupts...
USART2 Interrupt occur just one time or too late or never. (stm32f10 Keil)

Hello there. I have a homework to do stopwatch, but I'm having a few problems. In code there are 4 button interrupt(B0-B3), 1 timer1 interrupt for 1 ms and USART2 interrupt. Buttons and timer interrupts...
Late Night Question

Please bare with me, oh and don't laugh.. If/when I get a dev board, I would like to try and port a small (3-5Mb) windows program. The problem is I have no experience with this sort of thing. I don...
Late Night Question

Please bare with me, oh and don't laugh.. If/when I get a dev board, I would like to try and port a small (3-5Mb) windows program. The problem is I have no experience with this sort of thing. I don...
Interrupt switching during Late Arrival- CortexM3

In Cortex-M3 manual, it is mentioned that during Late Arrival, when low-priority interrupt (LP) has already pushed 8 registers to Stack and high-priority interrupt (HP)occurs then, for (HP), we don't...