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Forum Index : Microcontroller and PC projects : verifying contents using pickit3
| Author | Message | ||||
| kkoppert Newbie  Joined: 12/04/2017 Location: New ZealandPosts: 17 |
I keep burning the hexfile for MMBASIC 5.03.02 into a pic32mx170256B using a pickit3 and mpipe. I turn verify on and power the device from the tool. The result is The following memory areas(s) will be verified: program memory: start address = 0x0, end address = 0x3ffff boot config memory configuration memory program memory Address: 1d000400 Expected Value: ffffffff Received Value: ffff0000 Verify failed 2017-05-06 17:32:24 +1200 - Verify failed Is this expected? |
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TassyJim Guru  Joined: 07/08/2011 Location: AustraliaPosts: 5914 |
It happens with some configurations and is nothing to worry about. VK7JH MMedit MMBasic Help |
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| WhiteWizzard Guru Joined: 05/04/2013 Location: United KingdomPosts: 2794 |
This is correct - and the MicroMite will work correctly  My understanding is that things happen inside a MicroMite after the very first power-up after flashing. This effectively changes 'memory/flash contents' and therefore, the verification will fail as 'things are different'. If you were to save the contents of the MicroMite as a hex file (i.e. after it has done its initial 'memory/flash' alteration) then load & verify this file then it will pass  WW For everything Micromite visit micromite.org Direct Email: whitewizzard@micromite.o |
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bigmik Guru Joined: 20/06/2011 Location: AustraliaPosts: 2870 |
Hi Kk, This is because when the PIC programming is finished RESEST is released and on first power up MMBasic changes a few memory locations (I am not sure what but it causes a verify fail) To do a verify... Click on settings Select RELEASE from Reset Select HOLD in RESET Then program your chip, it should verify OK. Even though the default is hold in reset it actually requires selecting release first then selecting hold again. Kind Regards, Mick Mick's uMite Stuff can be found >>> HERE (Kindly hosted by Dontronics) <<< |
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| Phil23 Guru Joined: 27/03/2016 Location: AustraliaPosts: 1664 |
That info is really worth adding to numerous places of reference. Had me bluffed in the early days as to why the error. New ATT, Never used a Pickit3, or PIC's at all, so was a bit miffed by the error, but worked on when they proved themselves to be correctly programed. |
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