VIC-1011A RS-232C

Modding and Technical Issues

Moderator: Moderators

Post Reply
Mikam73
2049er
Posts: 1292
Joined: Tue May 18, 2004 4:34 pm

VIC-1011A RS-232C

Post by Mikam73 »

Has anyone tryed this?

Is there terminal programs for Vic20?

2400bps max?
carlsson
Class of '6502
Posts: 5516
Joined: Wed Mar 10, 2004 1:41 am

Post by carlsson »

There are some terminal programs on Funet, but I've never tried it. You are lucky to have the 1011A variant (terminal type), which allows connecting a modem. I have the 1011B variant (current loop) which is more for parallel printers IIRC.

300 bps routines is supposedly writable in Basic, 2400 bps routines will require machine code, but if the program is already written, it is not an issue..
Anders Carlsson

Image Image Image Image Image
vic user
VicGyver
Posts: 1401
Joined: Thu Mar 25, 2004 9:40 am

Post by vic user »

Hey Mika;

i have only tried vic term with the vic, and i did manage to connect to my local freenet with it.

up until last night, i had two vic's connected via rs232's, as my daughter and i have been playing around with a game i am writing, but i now moved one of the vic's away, as our robot kit just arrived in the mail, and we need the space!

i love having the vic's connected though!

chris
tlr
Vic 20 Nerd
Posts: 568
Joined: Mon Oct 04, 2004 10:53 am

Re: VIC-1011A RS-232C

Post by tlr »

Mikam73 wrote:Has anyone tryed this?

Is there terminal programs for Vic20?

2400bps max?
Over5 does 38k4 transfers over one of those (no terminal though). Should work with a c64 aswell.
Mikam73
2049er
Posts: 1292
Joined: Tue May 18, 2004 4:34 pm

Post by Mikam73 »

Chris..

Vic20 network and Robot kit.. :D

Sounds cool.. 8)
vic user
VicGyver
Posts: 1401
Joined: Thu Mar 25, 2004 9:40 am

Post by vic user »

you know it Mika!

and i just picked up a card edge connector for the user port.


i am going to solder some wires from the edge connector to a pc board with terminal connector blocks, and i should then have an interface card to connect from the vic to my breadboard, or whatever.

chris
6502dude
megacart
Posts: 1581
Joined: Wed Dec 01, 2004 9:53 am

Post by 6502dude »

vic user wrote: am going to solder some wires from the edge connector to a pc board with terminal connector blocks
You may wish to add 74ls244 to your interface to isolate your projects from 6522 in the Vic-20.

The TTL chip is cheap and easier to obtain relative to 6522.

A little bit of protection is a good thing when experimenting.Image
Image Mega-Cart: the ultimate cartridge for your Commodore Vic-20
vic user
VicGyver
Posts: 1401
Joined: Thu Mar 25, 2004 9:40 am

Post by vic user »

thanks for the tip.

so i guess you would use the chip as a buffer between the comp. and the breadboard or whatever, and thus the chip would fry if something went wrong?

i am learning as i go, so i am taking things slow.

all i have done so far, is practice soldering on tinning stranded wire and trying to make solder blobs like on a pre-soldered board, and make some simple circuits on a breadboard.

next step is to make this card connector, then use it to turn on/off a LED using signals from the vic through the board and then to a transistor as a switch to actually turn on/off the LED.

this must seem pretty elementary to you, but this is massive for me!

chris
Mikam73
2049er
Posts: 1292
Joined: Tue May 18, 2004 4:34 pm

Post by Mikam73 »

I got RS232 cartridge and cable. Can I connect my old modem to cartridge with that cable? I heard/readed that that Vic20 RS323 connector is different than usual. I can only use 1200bps modem? Not sure if my first modem is still working.. I suppose those faster modems wont work ok.
Post Reply