We are facing problem while running the serial port on control card JTAG Interface while running it on TMDSHVMTRINSPIN. Serial port is working perfectly good with just control card power supply is ON from its USB port. As soon as we turned on the auxiliary power of TMDSHVMTRINSPIN, c
ommunication stopped working. Please find the attached oscilloscope photo to understand the problem better. I request your help in resolving this error.
Relevant Information: SCI A is used on GPIO28 & GPIO29
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