rietveld Posted September 6, 2020 Share Posted September 6, 2020 (edited) The serial chip will not receive unless DCD is active. If you just hook up the Orphaneware RS-232 serial card's cable to the TTL adapter, using only TX, RX, and GND, that signal will not be active and terminal programs will not read any of the incoming data.You need to trick the serial card into thinking there is a DCD. To do this all you need to do is jumper pins 7 and 8 together then jumper pins 1,6, and 4 together. Edited September 6, 2020 by rietveld Quote Link to comment Share on other sites More sharing options...
rietveld Posted September 6, 2020 Author Share Posted September 6, 2020 Quote Link to comment Share on other sites More sharing options...
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