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Originally Posted by Mik325tds
Thank you, good sir!
Just two points of little confusion:
1. In the picture above you display VCC and GND, while in the text you refer to VDDR (=Vcc?) and VSS (=GND?). Are these assumptions correct?
2. In earlier posts I read that the MCU of the FRM3 can not be reflashed through BDM ports since it has some write protect mechanism. From your post above I gather that this is not true? Or do some of the older FRMs use masked MCUs?
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Hi,
1. Yes, VCC is power.
2. I never used BDM before for 9S12X MCU. However I am told of the software can decrypt secure state then it's possible. I personally remove chip and program in socket. However I like these micro grabber things so may try that next.