topic Reboot after Breakpoint in isr in LPC Microcontrollers

Reboot after Breakpoint in isr

Gorvak — Tue, 18 May 2021 17:50:38 GMT

Using the blinky example code, if I put a breakpoint in the systick isr and then reset the target using the debugger with the core stopped on that instruction, the isr never fires again. I have to exit the debugger and physically reset the core.

Putting the breakpoint anywhere else does not have the same effect. Interrupts work perfect after the reset.

Putting the breakpoint in the isr but not resetting the core using the debugger whilst the core is stopped doesn't trigger the fault either.

All settings are as default used in the demo code.

Has anyone else noticed this?

Re: Reboot after Breakpoint in isr

Alice_Yang — Wed, 19 May 2021 02:43:59 GMT

Hello Gorvak,

I refer to your description take a video on my side, please see my attachment, do I missing something?

Alice

Re: Reboot after Breakpoint in isr

Gorvak — Wed, 19 May 2021 09:34:19 GMT

How do I access your attachment? I don't see anything that allows me to download a file?

It might be helpful for me to describe my environment:

I use IAR 8.50.6 to perform this, connected to LPC55516-EVK over LINK 2 USB connector and using JFlash firmware in the board as suggested by startup guide.

Re: Reboot after Breakpoint in isr

Alice_Yang — Tue, 25 May 2021 10:08:48 GMT

I used MCUXpresso IDE.

About IAR, how about ask IAR support ?