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Reprogramming 12F629 OSCCAL after erase flash in mplab 6.x

 
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cyberjack



Joined: 05 Oct 2003
Posts: 1

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Reprogramming 12F629 OSCCAL after erase flash in mplab 6.x
PostPosted: Sun Oct 05, 2003 2:12 pm     Reply with quote
Aplogies if this is slightly off topic, but I'm not sure if this is a CCS issue or an mplab 6.x issue.

I'm working with incircuit programming of a 12F629 and can successfully read/write/verify the chip. However, when I erase the flash, it erases all of program memory, including the OSCCAL value at 0x3ff. No worries, right?
I just use:
Code:
#rom 0x3FF={OSC_VALUE}

and everything is happy...

Except here's the kicker, mplab 6.x refuses to program that address. When I check programming ranges, it shows me 0-0x3FE, and gives an error when I change to range to include 0x3FF.

Should I be using a different CCS option? Is this a bug in mplab 6? What am I missing?!?

Thanks a ton,
-Josh
roman



Joined: 23 Dec 2003
Posts: 3

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PostPosted: Tue Dec 23, 2003 5:12 am     Reply with quote
I have had this problem using MPLAB and the PromateII programmer. I now use the cheap and cheerful PICkit 1 Flash starter kit which works well with the latest MPLAB and has the facility to re-calculate and reload the calibration value. Smile
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