I have a single ATMEGA32 connected to a LT1082. An external 5V supply runs that board.
I am using a USB serial port adaptor to talk to my PC. The USB serial port gives random data when connected.
This happens with my laptop as well at my deskyop computers.
Any suggestions of why this is doing this ???
I checked the ground line from the LT1082 to the computer chassis.
I have tried a second LT1082.
Thanks for any ideas.