Hi Pekka, Sometime ago, Microchip release a new programming algorithm for 12C5X family. If your programmer is not updated you can have some troubles. By the way, ProPic 2 follow all the new specifications. Regards, Octavio ============================================== Octavio Nogueira - nogueira@propic2.com ICQ# 19841898 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 ============================================== -----Mensagem original----- De: Pekka Ritamaki Para: PICLIST@MITVMA.MIT.EDU Data: Quinta-feira, Janeiro 07, 1999 11:56 Assunto: 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 >4 right. >Some has troubles with each devices. >The common failure is: programmer gives Ok, but Code Protection bit is >turned >on (originally off) and chip is not working. >I have looked Microchip site for 508A pdf files, but I can't find >anything. >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. > >Pekka > >-- >Probyte Oy Software/hardware design works. Tampere, Finland >http://www.sci.fi/~pri >email:pri@sci.fi >phone int+358-3-2661885 fax: -2661886 >