In SX Microcontrollers, SX/B Compiler and SX-Key Tool, edgellmh wrote:

I am trying to get serial port communications going using HyperTerminal and a PDB board with its MAX232 driven DB9 serial port. I have tried Jon Williams' PC_PORT16.SXB code and nothing whatsoever happens at the terminal. With my own code (attached) I get correct PDB responses to my input detected by the behavior of LEDs connected to a 74HC595 but nothing shows up on HyperTerminal, either as echoes of my input or in response to TX_BYTE. HyperTerminal is set up as 9600 8-N-1 with auto detect and no flow control. The Print Echo icon is grayed out in the terminal. There must be something wrong with the terminal setup but nothing I have tried yet seems to help. Sometimes I see some echoing for my first one or two characters but nothing after that. I am running with the SXKey in place.

marshall hall edgell

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