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Hi, Apologies first, cause this question is more about hardware I guess. I have my PIC micro board working. But when I took it to EMC test, it failed on ESD. On 8KV ESD the PIC freezes, but Watch timer RESETS the pic, which is good. BUT after the reset the I2C won't work. There is no activity on clk or data line. If I power cycle the board then I2C works again. The two I2C slaves connected to PIC is held in reset for a while once PIC is reset, so it can't be the slave device. Any solution? Thanks John