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3.1.20：Failed W/R OB

1：Error message​

During the process of reading and writing the Option Byte (OB) to the target chip, the following read/write errors may occur, as shown in the figure below:

image-20240415103241374

2：Possible causes​

  • Discrepancy between the actual chip and the target chip: Each model may have a different memory layout structure (memory map), which may result in undefined behavior if reading or writing in the wrong way. If you read or write in the wrong way, it may lead to undefined behavior and cause errors, please make sure the chip is the currently selected chip. -Please make sure the chip is the currently selected chip.
  • Wiring is unstable: Replace wire, 'Re-plug and retry.
  • Other reasons: Please provide feedback to our technical support.