How do I use the NMI (Nonmaskable interrupt) for MPC5744P？

[gerrywang]

Hi，

In our project, when the interrupt condition occurs, the SBC (FS6500) generates a low pulse to the NMI pin of the MPC5744P. However, I do not know how to configure and implement Nonmaskable interrupt in code, there are examples of code?

[petervlna]

Hi,

This is quite simple.

When NMI is rised micro is going into machine check exception like e200z4 reference manual shows below:

To serve NMI you need to have IVOR1 handler. As an example you can refer to one of the the MPC5744P examples with IVOR handlers implemented we have posted here:

MPC5 software example list 

for example:

https://community.nxp.com/docs/DOC-103438 

Peter

[gerrywang]

Hi , Peter

Thank you for your reply!
But I'm not familiar with VLE instruction set. Can you provide an example of an IVOR1 handler?

[petervlna]

Hi,

You can find reference example for IVOR1 here:

https://community.nxp.com/docs/DOC-333754 

Peter

[alexanderhu]

hi,peter:

      Is there an example of working in S32D?