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回复 1# OffGao


   If the IC is Boot Locked . the boot data canot be erased.  Check the data after the boot.  if all is  FF , the chip is boot locked.

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回复 6# Albano.Matos


   I carefully proofread the algorithm and no errors found,    Test with SOP40 1.27mm is normal, but I don't have this chip of PLCC44, and it's hard to find

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回复 8# OffGao

But M5M28F102J SOP40 is Normal,  they are same command.
please test with new algorithm with 0x2020
ROM40P91.alg (63.74 KB)

Replace it in the floder:  ?/xgpro/algorithm. After replacement, reopen the application software.

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回复 10# OffGao


   I have to get the chip to test!

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回复 12# OffGao


   I tested more and more , but it can not be sloved.  programming logic is right.   It seems that the age of the chip is too old to be written.

Found :  after erasing,Disable erase before programming , then repeat programming more times. it can write into the first word, but cannot write the second word.


and M5M28F102 SOP40 is Normal.  I can't find the the problem.

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回复 14# OffGao

no useful at all. I tested with very low speed , can not  write to next address.

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