imx7 running WEC 7 v1.3 ( tried v1.2) clean install from easy installer.
using iris carrier board rev 1.1
.netcf 3.5 installed.
Using a test program to go through each serial port and send data, monitoring outputs on X16
COM1 & COM2 work as expected. normal state is high (3.3v)
COM3 gives no data output. steady state is high (3.3v)
How do i resolve this?