About delayed lock step on the MPC5744P

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About delayed lock step on the MPC5744P

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xieyang19080132
Contributor I

hello ,recently, i am configing this delayed lock step on the MPC5744P ,so i have some questions about that. now i dont find some materials about delayed lock step mechanism. there are some engineers provide some help for me?  

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davidtosenovjan
NXP TechSupport
NXP TechSupport
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xieyang19080132
Contributor I

Thanks a lot for response 

and now that mean that delay lock step is default config on the MPC5744P,and can i turn off the delayed lock step mode on the MPC5744P,can you tell me what i can do for this ?

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davidtosenovjan
NXP TechSupport
NXP TechSupport

It can be disabled by programming of DCF records what's not trivial task and it is being done in the OTP (one time programmable) area.

The only reason I see for disabling of lockstep is certain saving of power consumption. Checker core does not affect the performance anyhow and its disabling does affect the application only being less safe (and consuming lee power).

Here you may find screenshot of DCF client you would have to program:

pastedImage_1.png

Here you may find document and excel tools for DCF programming:

https://community.nxp.com/docs/DOC-341677 

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davidtosenovjan
NXP TechSupport
NXP TechSupport

Hi, you may pay attention for instance here:

https://community.nxp.com/thread/495772 

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