K02 SysTick ISR

[darwinsmith]

I have code developed using the for the K02FN64VFM10 in which I am using the SysTick to generate an ISR.  On a FRDM-K22F board the code executes and I can see that ISR gets services.  However, when I down load it onto the K02 target the code executes but the SysTick ISR is not serviced.  I'm not sure why this is happening.

[Jorge_Gonzalez]

Hello Darwin Smith:

I guess you are using a custom board for the K02. If that is the case please revise that the NMI pin (PTA4) is not in low state by an external signal during Power-ON / Reset. If possible place a pull up resistor.

Then also related to the NMI pin there could be an issue in debug mode, see this document by colleague Alistair:

Interrupts appear to be disabled when debugging.pdf

Let us know if the issue persists.

Regards!

Jorge Gonzalez