MCU to MCU connection

[OunaLypse]

Hi.

I mistakenly connected wrong pins on a ckt that had more than two MCU the pins were both outputs.
that did not damage the MCU's but it caused an unexpected delay or the MCU work on a very low speed.

do I have to replece the MCU or reprogram it?

 

[Tahmid]

Can you elaborate on the "unexpected delay"? How did you deduce that the microcontroller works at a low speed?

It wouldn't hurt to reprogram the microcontroller and see what happens.