LightDiodeDesigns
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Familiarly, when I now push power onto (2!) pics, they automatically run, no matter what I do with VPP!! I recognise this from JDM programming PIC16's, where the chip uses intOSC, and is set to use VPP as a digital input... Basically now I can't reprogram the thing because it is busy running the last PWM routine and won't talk to my MCD, or new PICKIT3...!!!
I know not to set the 2 settings together, MPLAB normally warns, but I had a new PICKIT3 (superb!!!) come this week and wanted to try the PushToProgram feature... I suspect I've done it on a blank chip and its left the config words as they were originally, but can't expain otherwise... "VPP before VDD" seems to make no difference, and even pushing 12v onto VPP won't stop the thing from playing.!! Normally I'd set it to use the external crystal, easy enough to short to get around the problem, but, I think I'm just "locked out" the same as the 2 or 3 16f628's I originally discovered the problem on!!
They're cheap enough, but I hate to throw away a chip, any suggestions, or anyone else found the same? I know my midrange PICs and am gutted, the first chip I've lost in months, RIP!
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I know not to set the 2 settings together, MPLAB normally warns, but I had a new PICKIT3 (superb!!!) come this week and wanted to try the PushToProgram feature... I suspect I've done it on a blank chip and its left the config words as they were originally, but can't expain otherwise... "VPP before VDD" seems to make no difference, and even pushing 12v onto VPP won't stop the thing from playing.!! Normally I'd set it to use the external crystal, easy enough to short to get around the problem, but, I think I'm just "locked out" the same as the 2 or 3 16f628's I originally discovered the problem on!!
They're cheap enough, but I hate to throw away a chip, any suggestions, or anyone else found the same? I know my midrange PICs and am gutted, the first chip I've lost in months, RIP!
<hr/>
We love the whole world of electronics!
[ADVERTISING REMOVED] NEAL
<hrr/>