topic How do I use the NMI (Nonmaskable interrupt) for MPC5744P？ in MPC5xxx

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

gerrywang — Fri, 23 Jun 2017 03:10:31 GMT

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?

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

petervlna — Mon, 26 Jun 2017 11:08:02 GMT

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

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

gerrywang — Thu, 13 Jul 2017 12:24:58 GMT

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?

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

petervlna — Thu, 13 Jul 2017 13:03:50 GMT

Hi,

You can find reference example for IVOR1 here:

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

Peter

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

alexanderhu — Mon, 21 May 2018 05:25:57 GMT

hi,peter:

Is there an example of working in S32D?