External memory space support in size for STM32H755X and STM32H745X?

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Guru

Could you perhaps be a bit more specific?

QSPI NOR is around 256MB

Pair of SDRAM 512MB

eMMC or NAND at least several hundred GB.

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Associate

yes, I mean for external SD card. So is it in GB's?

Guru

Used 200 and 400GB cards here, current driver code should work out to 2TB

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