topic interrupt doesn't work in IAR in S32K

interrupt doesn't work in IAR

macoveimircea — Mon, 21 Jan 2019 12:59:37 GMT

Hello, i am running AN5413 s32k14x Series Cookbook examples, more exactly i trIed the s32k144_Project_HelloInterrupts. First i run the code with S32 Design Studio and the lpit0 interrupt is working, but when i try to run with IAR ide same code, the lpit0 interrupt can't be reached by the breakpoint. Did anyone tried to test lpit0 interrupt in IAR? Could anyone explain me what i should do?

Thank you.

Re: interrupt doesn't work in IAR

danielmartynek — Mon, 21 Jan 2019 15:19:36 GMT

Hello,

Is the LPIT ISR toggling the PTD0 output?

Can you check the LPIT and NVIC registers in IAR whether the interrupt is enabled or not?

Thanks,

Daniel

Re: interrupt doesn't work in IAR

macoveimircea — Tue, 22 Jan 2019 10:00:55 GMT

Hi, PTD0 LED stays high(lit) all the time. I run the app and the interrupt is enabled, timer is counting and resets:

LPIT0_MIER->TIE0 1

LPIT0_TCTRL->T_EN 1

NVIC_ICPR[1] - 0x00004000

NVIC_ISER[1] - 0x00010000

PCC_LPIT - 0xC6000000

-PR 1

-CGC 1

-PCS 0x6

I can't figure it out why the same code doesn't work in IAR, maybe do i have to set something specific in IAR configuration?

Thank you for reply.

Re: interrupt doesn't work in IAR

danielmartynek — Tue, 22 Jan 2019 13:48:59 GMT

Hello,

Please check PRIMASK core register.

Thanks,

Daniel

Re: interrupt doesn't work in IAR

macoveimircea — Wed, 23 Jan 2019 07:26:56 GMT

Hi, the PRIMASK register is 0 all the time, maybe this will help?

Re: interrupt doesn't work in IAR

danielmartynek — Thu, 24 Jan 2019 14:29:43 GMT

Hello,

Unfortunately, I don't use IAR, so I can't test it.

But if you get an exception, you can debug that.

There are many documents describing Cortex M4 exceptions on the internet.

For example: IAR Debugging a HardFault on Cortex-M

Regards,

Daniel