DebugConsole
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Serial debug console (UART)[edit | edit source]
Debug serial console can be connected to pins 16 (EXTOMX, data going from external serial device to head unit), 17 (MXTOEX, data going from head unit to external serial device) and 26 (GNDD, ground).
Serial console speed is 115200 bits per second.
This is UART1 peripheral of iMX6 and is mapped as /dev/ttymxc0
Be sure you using 3.3-volt version of UART adapter
Please connect ground wire between your PC and your head unit securely before connecting other wires