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Parallel Printer Port driver for Z80 [message #9820]

Wed, 16 March 2022 14:17

lynchaj
Messages: 1080
Registered: June 2016

Senior Member

Hi

I am looking for Z80 assembler code example for a parallel printer port driver. This is for the Z80 PRINT V1 board just introduced for the Z80 MBC. Hopefully this code will be incorporated into RomWBW to support IBM PC compatible LPT: (aka Centronics)

This particular parallel port is implemented using discrete logic chips although there are several ways to implement such as using a PPI, PIO, etc. What I would like to capture is the parallel port protocol for handshaking with the parallel printer or other device

Any help greatly appreciated, Thanks, Andrew Lynch

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[Message index]

		Parallel Printer Port driver for Z80 By: lynchaj on Wed, 16 March 2022 14:17
		Re: Parallel Printer Port driver for Z80 By: phil_g on Thu, 17 March 2022 02:56
		Re: Parallel Printer Port driver for Z80 By: lynchaj on Thu, 17 March 2022 04:58
		Re: Parallel Printer Port driver for Z80 By: cluso99 on Thu, 17 March 2022 18:34

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