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Stack over flow intermittently when reaching P0-6 I/O

Other Parts Discussed in Thread: CC2540

 Hello there,

I am using my board with CC2540, in some boards I get randomly stack over flow during debug mode  or normal operation, after a while it function normally , on debug the stack overflow occurs always when i am reaching to the same I/O -P0-6(set Low).

Is there a possibility that this is a matter of HW?

I am using 3V .

This I/O controls PMOS with 100Kohm resistor between Drain to Gate.

Same issue observed when the PMOS removed.

ANLGPWR NET Connected to P0_6