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STM32H743 and MT25QL128 - problem with dualflash mode

EEuge
Senior

Hello!

I have STM32H743 and 2 memory IC - MT25QL128

I create array with data 0x01,0x02,0x03,0x04.....0xFF and write it to flash

In singleFlash mode system works good.

But in dualflash I see :

00 88 02 88 04 01 06 03 08 05 0A 07

From Flash1 system reads 00, 02, 04, 06, 08 - it is correct.

From Flash 2 system must read 01, 03, 05, 07. But it reads 88,88, 01, 03, 05, 07

If I get out MT25QL, and mount W25Q128 (without code modification) - all work OK.

What is the possible reason of it?

How to fix?

1 REPLY 1

Configuring non-default dummy cycles into one device and not the other.​

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