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Hi All I using using 2 Arm7 chips for redundancy in my project.Some GPIO are interconnected each other.iam programming both chips using "Multi Target using uLINK. Iam selecting one chip for programming other chips is ON and vice vcersa. Both chips GPIOs are connected,Is there any possiblility of Chip getting dammaged?.while ISP through JTAG.pls suggest.
If you connect the IO of the two processors, just use a serially connected resistor on the signals. That will keep down the current if you drive one pin high and the other low.