topic How to use MPC5744P NMI_B pin? in Model-Based Design Toolbox (MBDT)

How to use MPC5744P NMI_B pin?

ruoxuanluan — Tue, 27 Mar 2018 02:31:54 GMT

Hi everyone:

I meet a problem when I use MPC5744P board(SCH-27887 REV B1, 700-27887 REV A), the board uses MC33907L as the power supply for MPC5744P, and when something goes wrong, MC33907L provides a interrupt signal which connected to the NMI_B pin on MPC5744P.

When I read WKPU.NSR register, I found WKPU.NSR.B.NIF0 == 1, that means there is a NMI interrupt occurs and MPC5744P detects the interrput, but the program does not enter any interrupt service routine, so I cannot handle the interrupt.

I would like to know how to configure the registers related to NMI interrupt, its better if anyone can provide an example for me.

Apologize for my poor English, and I hope someone can help me!

Best Regards

luan

Re: How to use MPC5744P NMI_B pin?

Daniel_Popa — Tue, 27 Mar 2018 14:16:39 GMT

Hi luan,

Please check this thread - it seems to be the same thing you are looking for: https://community.nxp.com/thread/454113

Hope this helps!

Daniel

Re: How to use MPC5744P NMI_B pin?

ruoxuanluan — Wed, 28 Mar 2018 06:22:28 GMT

Hi Daniel:

Thank you for your help, I`ve read this thread, it helped me a lot!

luan