Hi, I wnat to know about the bad block management in stm32. How did i find these MCU support bad block management?, Please give me the details what are the MCU's contain bad block management. Thank you.

[AFaya.1]

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[waclawek.jan]

Are you talking about external NAND FLASH connected via FMC/FSMC?

ST may have some libraries supporting NAND FLASH including bad block management, but you have to contact ST directly.

JW

[AFaya.1]

I am asking about internal NAND flash in STM32f769BI. I don't know how to find bad block management in NAND flash. ECC only returns error and busy then how to find the bad block.

[TDK]

The internal FLASH is guaranteed to have the number of read/write cycles specified in the datasheet. I suspect it is NOR flash, not NAND flash, but can't find anything definitive in ST docs.

> ECC only returns error and busy then how to find the bad block.

I don't see anything in the reference manual which suggests the internal FLASH has an ECC check on this chip. Perhaps you can clarify what you're seeing exactly.