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Conference hydra::amiga_v1

Title:	AMIGA NOTES
Notice:	Join us in the NEW conference - HYDRA::AMIGA_V2
Moderator:	HYDRA::MOORE

Created:	Sat Apr 26 1986
Last Modified:	Wed Feb 05 1992
Last Successful Update:	Fri Jun 06 1997
Number of topics:	5378
Total number of notes:	38326

4678.0. "Parallel Port Programming" by VARESE::FRANZONI (Blue like a Blues) Mon Apr 15 1991 05:23

Hello,

I'm writing a pseudo-driver task (connecting to the interrupt vector), to handle
data to/from the parallel port ...

I had a look at the exec and hw ref manuals but did not find enough information
about it so here are some questions: 

1) before all, which is the interrupt number of the parralel port (which I have
to connect to, by means of SetInterruptVector)

2) what are the addresses and bitmaps of the parallel port registers (i.e.,
   the information one could find in the programming section of DEC's device
   users guide (csr, lpr, ...)) ?

3) I found the handshacking/timing diagrams of the standard parallel driver
   I/O (actually the only interesting stuff about parallel :-( ) ... but I'm
   unsure about handshacking and unsatisfied with timing (only few are shown).
   I've done some testing with a sort of break box (the equivalent of a serial
   interface analyzer) I built to monitor/force data/control signals but I
   wasn't able to make the system think my board was actually a 'printer' ...
   Does anyone have an exact handshacking sequence and timing diagram for I/O ?

4) Is there somewhere any good code sample about advanced programming for the
   parallel port ?
   (all the Amiga's doc I have seems to refer to it as:
    "there's a parallel port that is normally used for printers")

Thank you in advance,
cheers, Mauro.

T.R	Title	User	Personal Name	Date	Lines
4678.1	Mats DNET might help.	CSC32::A_ANDERSON	DTN 592-4170 NSU/VAX	`Mon Apr 15 1991 14:14`	5
	I think Mat Dillon wrote something to connect two Amigas together via the parralel port. I anm running from memory but I believe it was DNEt and on one of the later Fred Fish disk (FF400 and up). If the source was included it might help to take a peek.
4678.2		VARESE::FRANZONI	Blue like a Blues	`Tue Apr 16 1991 04:39`	10
	> I think Mat Dillon wrote something to connect two Amigas together via > the parralel port. > I anm running from memory but I believe it was DNEt > and on one of the later Fred Fish disk (FF400 and up). If the source > was included it might help to take a peek. Dnet uses serial.device or any look-alike (latest on disk 294), I found ParNet on disk 400, it uses the parallel port to connect two Amigas but it's distributed with binary only ... sigh :-( Mauro.
4678.3		CLO::COBURN	Growing older, but not up...	`Tue Apr 16 1991 18:21`	4
	PARNET is a Software Distllery product I believe, maybe <CB> can get the source for you? John
4678.4		VARESE::FRANZONI	Blue like a Blues	`Thu Apr 18 1991 09:21`	8
	> PARNET is a Software Distllery product I believe, maybe <CB> can get > the source for you? This would be great ... I wouldn't need the whole code but just the (few) pieces referencing to the port programming/register layout (and the handshaking). Any pointer to (advanced) documentation about the parallel port would be appreciated as well. Thanks, Mauro.
4678.5		BARD::mcafee	Steve McAfee	`Thu Apr 18 1991 11:35`	16
	I think Matt Dillon also wrote parnet. It's in: TAPE::AMIGA:[AMIGA.NETWORK]PARNET.ZOO but it looks like there is a newer version on ab20... Sun 14-Oct-90 19:02:23 43856 usenet/comp.binaries.amiga/volume90/comm/parnet-2.4/part01.Z Sources ARE available somewhere. Matt just said so on usenet recently though I didn't take notice where. Someone was looking for examples of how to use the parallel port bidirectionally. regards, steve
4678.6	Not me...	FROCKY::BALZER	Christian Balzer DTN:785-1029	`Thu Apr 18 1991 12:52`	10
	Re: .3 Ahh, the common confusion. We are the Software Brewery while the Software Distillery is headed by John Toebes VIII of SAS/C fame. But .5 seems to have right pointers... Cheers, <CB>
4678.7	oops, thanks for the correction(s)	CLO::COBURN	Growing older, but not up...	`Thu Apr 18 1991 13:52`	1

4678.8		WELSWS::FINNIS		`Tue Apr 23 1991 09:46`	9
	I believe the code for the original Sound Sampler is about on one of the early fish disks if that is any use . Your right about the R.K.M stuff not much advanced stuff for PAR: Please post a pointer if you do get anywhere. _Pete_
4678.9		VARESE::FRANZONI	Blue like a Blues	`Mon Apr 29 1991 03:50`	8
	Thanks for the pointers, I've also found ParOut on FF 237 ... I'm downloading it to have a look at the source. I'll let you know what I can work out of the parallel port ... Thanks, Mauro.