'PIC12C508A programming troubles'
I have got new PIC12C508A PICs.
The programming algorithm seems to be different than PIC12C508.
Some of my friends have problems with 508A programming.
Some programmers works perfectly, some programmers do right only 3 out
Some has troubles with each devices.
The common failure is: programmer gives Ok, but Code Protection bit is
on (originally off) and chip is not working.
I have looked Microchip site for 508A pdf files, but I can't find
I want to hear others comments about 508A. I know that Picstart has
upgrade for 508A ( 17C42 chip).
I have Tait-type parallel programmer and this works ok every time.
Probyte Oy Software/hardware design works. Tampere, Finland
phone int+358-3-2661885 fax: -2661886
Sometime ago, Microchip release a new programming algorithm
for 12C5X family. If your programmer is not updated you can have
By the way, ProPic 2 follow all the new specifications.
Octavio Nogueira - propic2.com ICQ# 19841898 nogueira
From the creator of ProPic, ProPic 2 now much better
New ProPic 2 homepage: http://www.propic2.com
PIC Programmer for Windows with down to earth price
De: Pekka Ritamaki <SCI.FI> pri
Para: MITVMA.MIT.EDU < PICLISTMITVMA.MIT.EDU> PICLIST
Data: Quinta-feira, Janeiro 07, 1999 11:56
Assunto: PIC12C508A programming troubles
Pekka Ritamaki wrote:
> The common failure is: programmer gives Ok, but Code Protection bit is
> turned on (originally off) and chip is not working.
I have experienced that with 12C509A when I used the 16F84 algorithm
instead of the 12C509 algorithm. ;-(
James Cameron (stl.dec.com) cameron
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