Peripherihal interrption in Freertos - Nucleo STM32F103rb board

Kernel
1

Hey!

I’m trying to discover a little bit freertos. I have a problem when I add the external interruption (EXTI) in the code. So, I have to tasks (task 1 blink red-Led for 1s and task 2 blink green-Led for 1s), I add an external interruption which when I push the button (Port C pin13) I blink the blue-Led. here is some part of the code.

Capture d’écran du 2023-05-16 17-25-22
Capture d’écran du 2023-05-16 17-25-22604×511 37 KB

Capture d’écran du 2023-05-16 17-26-04
Capture d’écran du 2023-05-16 17-26-04635×653 71.6 KB

the Output of the code, is that the task1 and task2 are running (red-led ans green-led blinking) but the also the blue-led is ON without pressing the button. Can someone figure out where the issue could come from ?
Thanks

2

Did you set the initial state of the LED to OFF? Does it toggle correctly when you press the button?

3

It’s solved. The issue was related to the miss configuration of EXTI function!

4

Thank you for reporting back.

1 Like