stupid error migrating from pic16f628 to 628A

All of the PIC flash parts (including the 16F628A) can be re- programmed as many times as you need it. The protected mode does not prevent you erasing the chip and re-programming. If for some reason your programmer does not somehow support this then get one that does. Perhaps there is an option you have missed?

Dave.

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away

thank you but still looks otp-like i use the configuration word 03A2,after programming the first time i have the indication "error blowing fuses",and no way to program it again.... i'm desperate ,it is 4:32 am here and i have to finish before 9:00 :-(

I don't like 628's....

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wow...funny..

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forgot to say thanks and sorry,unwillingly i opened a 2nd thread

"AJ" schreef in bericht news:Y1w5i.3879$ snipped-for-privacy@news-server.bigpond.net.au...

As for the configuration bits, /MCLR is enabled so it is not used for input.

As far as I learn from MPLAB, the configuration word "03A2" is accepted for both the 16F628 and the 16F628A.

It is said that the programming algorithms for the 16F628 and the 16F628A differ. Both have their own specifications but I did not compare in detail. It is rumoured that using the wrong algorithm may do damage to the device, though I did not find a confirmation so far.

AFAIK the only thing you can do is finding another, high voltage, programmer and trying to perform a bulk erase. I can try it for you, but I don't think it to be cost effective :)

petrus bitbyter

MPLAB will erase it for you.

I use the PICSTART by Microchip.

Why buy cheap rubbish instead ?

Subject: Re: stupid error migrating from pic16f628 to 628A

one good reason could be that at that time willepro fit my budget ,and was a good choice for the hobbyst,being able even to program other devices(flash memories,atmel devices and so on) of course i would like a more microchip-oriented programmer,with the ICD option

thanks to Marra,Petrus,AJ and David