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Hi;
I made a SI-prog programer and PIC programer adapter for PIC
programing.
I can program (read & write) many PIC series for exampel 16F84A but I
can't
program PIC 12C5xx series. I can just only read it but i can't write
it.
I check many 12c508a and after 4 or 5 times IC be damaged.
please , say me what's the problem?
your sincerely :
A-Raftari __________________________________________________ |
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ponyprog
Started by ●October 22, 2004
Reply by ●November 1, 20042004-11-01
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It might be that the programmer can program a 12C508 but not a 12C508A -- my understanding is that "A" devices are sometimes different in their programming specs. A quick look at a website for this programmer showed that it did list the non-A version but didn't say anything about the A version. To me, that would suggest that it won't do your chip. You might ask the manucturer of the product for clarification regarding this matter. --- In , abbas raftari <araftary1@y...> wrote: > Hi; > I made a SI-prog programer and PIC programer adapter for PIC programing. > I can program (read & write) many PIC series for exampel 16F84A but I can't > program PIC 12C5xx series. I can just only read it but i can't write it. > I check many 12c508a and after 4 or 5 times IC be damaged. > please , say me what's the problem? > your sincerely : A-Raftari > |
Reply by ●November 1, 20042004-11-01
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Hi, A Raftari. We see all your posts. I have never programmed a 12C508, so I don't know if it takes anything special to do so. In any event, there are so many things that could have gone wrong -- expecting us to solve it without more detail is unrealistic. So, we can't tell you what the problem is. What program are you using to read and write the PIC? And who is the vendor/website for the SI-prog programmer? There's *lots* of programmer web-sites, after all. --- In , abbas raftari <araftary1@y...> wrote: > Hi; > I made a SI-prog programer and PIC programer adapter for PIC programing. > I can program (read & write) many PIC series for exampel 16F84A but I can't > program PIC 12C5xx series. I can just only read it but i can't write it. > I check many 12c508a and after 4 or 5 times IC be damaged. > please , say me what's the problem? > your sincerely : A-Raftari > __________________________________________________ > |
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Reply by ●November 2, 20042004-11-02
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As I checked Microchip, the 12c508 is an OTP-chip, which means 'One-Time-Programmable'. Therefore reading is no problem, but you can write it ONLY ONCE! > > I check many 12c508a and after 4 or 5 times IC be > damaged. It should be a miracle that A. Raftari was able to write it 4 or 5 times! Kees. --- Allan Lane <> wrote: > > Hi, A Raftari. We see all your posts. > I have never programmed a 12C508, so I > don't know if it takes anything special > to do so. > > In any event, there are so many things that > could have gone wrong -- expecting us to > solve it without more detail is unrealistic. > > So, we can't tell you what the problem is. > What program are you using to read and write > the PIC? > > And who is the vendor/website for the SI-prog > programmer? There's *lots* of programmer > web-sites, after all. > > --- In , abbas raftari > <araftary1@y...> wrote: > > Hi; > > I made a SI-prog programer and PIC programer > adapter for PIC > programing. > > I can program (read & write) many PIC series for > exampel 16F84A but > I can't > > program PIC 12C5xx series. I can just only read it > but i can't > write it. > > I check many 12c508a and after 4 or 5 times IC be > damaged. > > please , say me what's the problem? > > your sincerely : A-Raftari > > > > > > __________________________________________________ > > > > __________________________________ |
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Reply by ●November 2, 20042004-11-02
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--- In , Kees Stenekes <knalkeez@y...> wrote: > As I checked Microchip, the 12c508 is an OTP-chip, > which means 'One-Time-Programmable'. Therefore reading > is no problem, but you can write it ONLY ONCE! Parts that have OTP versions also have versions that are windowed UV erasable (extension of E/JW or something like that). Without them no one ever get a product to work. ;) |
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Reply by ●November 2, 20042004-11-02
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--- In , Kees Stenekes <knalkeez@y...> wrote: > As I checked Microchip, the 12c508 is an OTP-chip, > which means 'One-Time-Programmable'. Therefore reading > is no problem, but you can write it ONLY ONCE! > > > > I check many 12c508a and after 4 or 5 times IC be > > damaged. > > It should be a miracle that A. Raftari was able to > write it 4 or 5 times! > > Kees. Check Digi-Key, they offer the 12C508a in both JW/Eprom and OTP packages. |
Reply by ●November 2, 20042004-11-02
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--- In , "Scott Lee" <midl_man@y...> wrote: > > --- In , Kees Stenekes <knalkeez@y...> wrote: > > As I checked Microchip, the 12c508 is an OTP-chip, > > which means 'One-Time-Programmable'. Therefore reading > > is no problem, but you can write it ONLY ONCE! > > Parts that have OTP versions also have versions that are windowed UV > erasable (extension of E/JW or something like that). Without them no > one ever get a product to work. ;) yup, the idea is you test and troubleshoot with the much more expensive chip and then order thousands of the much cheaper chip. Dave |
