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LAUNCHXL-CC1312R1: Unwanted FLASH erasing

Part Number: LAUNCHXL-CC1312R1

Hey,

I use CC1312R1 and I've noticed that sometimes when i turn off the voltage supply, the FLASH erase itself.

I had some research and it occurs because the CS (Chip select) is trying to write while VCC is going down and its not allowed in this component (the CS suppose to follow the VCC level when it turns off).

I need your help to try to find a solution to this problem because in the project I work on, I wont be able to upload the erased data every time its happen.

Thank you,

Ron.