Board is frozen when Time interrupt calls

Mbed OS Best practice
1

Hi,
I’m developing a firmware to LPC1768 custom development board. I have added Timer interrupt to get button press time duration. When the Timer interrupt calls the development board getting frozen. The firmware is also contained with threads and timers.

2

Hello,

please be so kind and share your code, ideally in its simplest form, where the issue occurs.

BR, Jan

3

Sorry. Unfortunately I can’t post it. Because It is a private codebase. the codebase has multiple threads and timers.

4

So you want help from others with something what you not want to show. It’s like repairing a car over the phone. I am here from 2017 and I never saw that, good luck with your secret code :slight_smile:

BR, Jan

5

It was a while ago but I think I might’ve had the same issue. When using an LPC1768 timer interrupt, you have to clear the interrupt register from the interrupt, otherwise it gets stuck there forever. e.g.

	// clear interrupt flag
	LPC_TIM2->IR |= (1<<4);
1 Like
6

Thank you Jamie Smith!