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[C51] OVERLAY between MAIN and ISR

I have an issue with overlayed variables.

Some locals variables function used within the MAIN call tree context are overlayed with local variables used within ISRs call tree context.

So, when ISR is executed, main local variables are corrupted...

how can I prevent this overlay within the linker file ?

Any ideas ?
Thanks for your support !

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  • how can I prevent this overlay within the linker file ?

    Are you calling functions from both main and the isr? In that case, you may have to declare them as reentrant, or include two copies of the same function, one for calling from main and one for calling from the isr.

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  • how can I prevent this overlay within the linker file ?

    Are you calling functions from both main and the isr? In that case, you may have to declare them as reentrant, or include two copies of the same function, one for calling from main and one for calling from the isr.

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