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.

[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.

[SMain.2]

Hello,

I am in this situation (external NAND FLASH connected via FMC), and the existing HAL NAND library seems very limited. Do you know who in ST I should contact to enquire about other libraries?

Thanks.