ken wrote:
>
> Up until now I have programmed 100's of PIC16C52's, but last week I
> programmed a batch of 25, all programmed and verfied OK. I did my usaul
> radom test and found some which didn't work, I test all of the devices
> and found about 40% did not work. I reprogrammed the fuses and most then
> worked. I was left with 6 which just would not work but they verrified
> OK. I sent out 25 fully tested devices to my customer and have just
> heard from him that all 25 devices do not work.
>
> Has anyone come across this before, the devices were all date coded
> 9711SCN.
>
> Any ideas.
>
> Ken.

We had a similar problem early this year. We had about 28 devices that
just wouldn't toggle a particular pin. I went away, but I moved the
functionality from that pin to another.

What sort of programmer do you use?

--
Friendly Regards

Tjaart van der Walt
mailto:tjaart@wasp.co.za
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