Re: PS/2 mouse -> Apple mouse adaptor. Want one?

[Roger Johnstone <rojaws@es.co.nz>]

In <68-cnQXTp-br1eGjXTWcog@comcast.com> Bill Garber wrote:
> 
> All I have to say is "YES" and "Now you tell me,
> after I go and buy 2 mice". Please, send me a PIC
> and the plans to build it or one already built. Maybe
> I can afford a pic programmer and burn the pics for
> you. What is the number of the pic, I'll see if I can
> snag a burner in April. I can get PIC burner for around
> $18 minus power supply. Software is downloadable
> for it.
> Thanks
> 
> Bill @ GarberStreet Enterprises
> http://garberstreet.netfirms.com

At the moment it's using a PIC16F84. I like to use these because they 
use flash ROM. They can be erased and reprogrammed in about 30 seconds. 
The final version would probably use a PIC16C620 which are one-time-
programmable chips pin-compatible with the PIC16F84. There are several 
simple PIC programmer designs on the internet which work from a PC 
serial port if you want to build your own. I'll put the adaptor program 
on my web site when it's finished.

I really wanted to use one of the 8-pin PICs since they're so small and 
cheap. An 8-pin microcontroller with 6 I/O pins! But unfortunately the 
adaptor needs 7 I/O pins; 2 for the PS/2 data and clock, 4 for the mouse 
movement and 1 for the button.

-- 
Roger Johnstone, Invercargill, New Zealand

Apple II - FutureCop:LAPD - iMac Game Wizard
http://homepages.ihug.co.nz/~rojaws/
________________________________________________________________________
"But what is it good for?"
    Engineer at the Advanced Computing Systems Division of IBM
    commenting on the micro chip, 1968