Does the version 3 of ESX 28 really support serial IO?
Yes it does! The SXB SERIN/SEROUT work at 19,200 baud with the SXB program set to run at “FREQ 4_000_000” using I/O pins 2 and 3. In other words, these SXB commands are used: “serout ra.3,T19200,variable” and “serin ra.2,T19200,variable”. See the serial_ttt.sxb sample program. To execute the program use: “esx28v3 -sx serial_ttt.lst”.
