MPC5643L: Writing User Option Status: Disable Watchdog

[bastian_schick]

Hi,

I want to disable the watchdog (and switch to DP mode). But I see no way to write UOS register.

Also mine is all ones. Is this correct for  a brand new chip ?

[dayve]

Hey!

What debug tools are you using? I am working on some information that might be of use to you.

Regards, 

Dayve

[Tatay]

Hi,

I'm usiin CW 2.7 for MPC5643L with debugger PE micro USB multilink. I don't manage to switch to DPM whereas there is an option to create a project in DPM. But this doesn't put the MCU in DPM.

how should i do to switch to DPM? The macro "mpc5643L_enable_second_core_vle.mac" doesn't work, most of instructions finish with invalid command!

Thank you,

Best regards

[gernot · Accepted solution]

you have to write a line in shadow flash using debugging tools.

in this website look for application note AN4034:

title: MPC5643L Dual Processor Mode