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- Path: sparky!uunet!portal!cup.portal.com!Rick_Michael_Cortese
- From: Rick_Michael_Cortese@cup.portal.com
- Newsgroups: comp.sys.atari.8bit
- Subject: Re: Adding a 2nd PIA
- Message-ID: <65707@cup.portal.com>
- Date: Fri, 11 Sep 92 19:47:08 PDT
- Organization: The Portal System (TM)
- References: <1992Sep10.012032.11157@mnemosyne.cs.du.edu>
- <65609@cup.portal.com> <65693@cup.portal.com>
- Lines: 9
-
- Just a non-verbose addition: Just got through wiring the 2nd PIA to a
- Citizen 120D printer. I haven't wrote/won't write a handler, but the wasy
- I have it set-up for a 7 bit character you just poke PORTA with the character
- then the character+128 to toggle the printer's Data Strobe line. It could'a
- been done with 8 bit data, but I was just fool'n around. I'll do the 6551
- @ $D600. Total parts for adding a real centronics printer interface & a
- 19,200 baud RS232 port should be less then $15. BTW: the BUSS is the only
- way to go for RS232, That way you don't have to kill concurent mode during
- disk access. I just have to pick a good chip to mount the 6551 on top of.
-