At 04:53 PM 23/02/97 -0500, you wrote:

>At 06:25 PM 2/22/97 -0500, you wrote:
>>I'm looking at a 12C508 design in which I would like
>>to program the device in circuit. I'd program the
>>code in the device ROM and specific device values
>>in higher memory. I'll be having unskilled
>>technicians program the parts, so I'd like to
>>build a canned ap that will program the devices
>>as well as allow selection of specific values
>>for the part. Ability to use the lpt port of
>>the PC would be a plus.
>>
>>Is there any existing source that anyone is aware
>>of for programming a 12C508?
>
>The programming algorithm for the serial parts, from 16C74 down to 12C508,
>is essentially the same for all chips (except the '8x timing).  You do well
>to contact a professional on this.
>
>I recommend _NOT_ using a programmer based on the serial port, though.
>
>Andy
>==================================================================
>Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865
>          Hardware & Software for Industry & R/C Hobbies
>        "Go fast, turn right, and keep the wet side down!"

I use a programmer from Newfound electronics (Warp-3) and find it to work well.
It uses serial port. However I am not using it to program in circuit.

I guess you could say it was in the Beta phase.


Peter Grey
Neosystems
Australia