MPC5746 software functional reset

[rudrappa_jangam]

Hi ,

I am trying to create the Software Functional reset in MPC5746C , but i am getting debug port fail from Lauterbach , looks like debugger is loosing connection due to some reason.

While performing the reset i perform the below instruction

ME_MCTL = (uint32)(( ((uint32)0x0) << 28 ) | 0x00005AF0UL);
ME_MCTL = (uint32)(( ((uint32)0x0) << 28 ) | 0x0000A50F );     (After executing this line i get lauterbach debug port fail)

Can you tell me what could be the cause ?

I am using the Lauterbach Script provided NXP for MPC5746c

[rudrappa_jangam]

Hi David ,

The problem is similar to the problem described  in the thread MPC5748G, Lauterbach multiple-reset causes error .

only difference is its happening right after first reset not after 15 resets as described in https://community.nxp.com/thread/355534 .

I tried the solution provided but could not solve it .

thank you

With regards

Rudrappa

[davidtosenovjan]

Yes, that's why I am asking for the question above. To know whether you are facing reset escalation or just some issue with the debug probe. However I often debug over reset with Lauterbach TRACE32, it should work.

[davidtosenovjan]

Hi, is the loosing of debug connection the only issue?

I mean whether the code is executed properly after SW reset. You could try to blink LED or print notices to the terminal window to check it.