I have the high-density version of CP/M for the Altair 8800c and a C700 Centronics printer interface. The interface works fine with Altair BASIC. Is there a way to print from CP/M? I tried sending the output to PRN but nothing happens. Is there a way to associate PRN with the Centronics interface? If so, how?
TIA
Tom L
Printer From CP/M?
-
- Posts: 305
- Joined: June 7th, 2013, 12:54 pm
- Contact:
-
- Site Admin
- Posts: 677
- Joined: April 5th, 2013, 10:55 am
- Contact:
Re: Printer From CP/M?
The BIOS does not have support for the Centronics printer interface. Here are the IOBYTE options for the LST: device:
; 00 - TTY on SIO at I/O address 0
; 01 - CRT on 2SIO port 1
; 10 - LPT on LPC board
; 11 - UL1 on 2SIO port 2
; 00 - TTY on SIO at I/O address 0
; 01 - CRT on 2SIO port 1
; 10 - LPT on LPC board
; 11 - UL1 on 2SIO port 2
-
- Posts: 305
- Joined: June 7th, 2013, 12:54 pm
- Contact:
Re: Printer From CP/M?
Thanks for the reply. My terminology sucks! I have an LPC board, not the C700. I'll try option 10. If that doesn't work, I guess I'll try an RS-232 to Centronics converter such as this one:AltairClone wrote:The BIOS does not have support for the Centronics printer interface. Here are the IOBYTE options for the LST: device:
; 00 - TTY on SIO at I/O address 0
; 01 - CRT on 2SIO port 1
; 10 - LPT on LPC board
; 11 - UL1 on 2SIO port 2
https://www.amazon.com/Black-Box-Conver ... B0064D16GE
-
- Site Admin
- Posts: 677
- Joined: April 5th, 2013, 10:55 am
- Contact:
Re: Printer From CP/M?
You can set the LST: device to LPT: as follows:
A>STAT LST:=LPT:
A>
This will remain in effect until the next cold boot.
A>STAT LST:=LPT:
A>
This will remain in effect until the next cold boot.
Who is online
Users browsing this forum: Ahrefs [Bot] and 2 guests