Added serial port

I’ve added the DE-9S connector, TRS202ECN transceiver (equivalent to MAX202), and ceramic capacitors, which make up the TIA-232-F serial interface. The serial interface uses a female connector and is wired as DCE (Data Communication Equiment) to facilitate direct connection to a USB-to-serial adapter.

37522547264_c7c10fc78a_m

Not shown: two trace cuts and two orange jumper wires on bottom of main PCB.

Next I’ll need to get a VHDL UART working with my 1802 core.

This entry was posted in FPGA, RetroChallenge. Bookmark the permalink.

Leave a Reply