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Re: [N8VEM: 15916] custom rom for hazeltine terminal



Nik,

One trouble I had with a Wyse terminal was that it needed ALL the RS-232 signals before it would operate.  It is possible that the Hazeltine terminal will not send keyboard characters unless one of the RS-232 signals in asserted.

My solution was to create a special cable for the Wyse terminal with DTR (DSR after going through a null modem) to (CD).  The signal voltage drops, but it is still within RS-232 limits, and the terminal started responding.

I also short RTS to CTS at the terminal connector.

–John





On 05/24/2013 04:01 AM, brizza wrote:

<blockquote>
Hi,

i'm building a custom rom with the current bios ,RomWBW v2.5, but the keyboard is not responding, video is fine. Odd since previous bios' all worked fine with this terminal. The only changes i need to make is the baud rate back to 9600 and floppy drive to FDM120. I have tried all 3 terminal types, ANSI,TTY and WYSE but none have keyboard reponse. Anything else i could try. The BAUD rate needs to stay at 9600 since that is the highest setting for this terminal.

Nik


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