freezing some variables when warm reset (restet without powering down) occurs

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AliBahar

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Hi every one. I am working on Instrument Cluster which uses MC9s12xhy128 and the firmware is created by codewarrior IDE. i have enabled the WDT and i want to freeze some variables (like pointer position of panels) if WDT resets the micro-controller. any suggestion ?
 

Didn´t you try uploading these variables to the NVM ?
 

Variables are unlikely reset by the processor hardware, they are zeroed by the C runtime library, as required by the C language specification. You can either change the default behaviour by compiler switches or allocate the respective variables outside the regular variable memory area.
 

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