nand flash problems STM32F746IGT6

dmitriy · ‎2016-03-18

Posted on March 18, 2016 at 15:16

I have a working device board based on STM32F429IGT6 processor, connected to SDRAM MT45W4MW16BxB and NandFlash MT29F2G08ABAEAWP-IT.

I replaced processor on the board by STM32F746IGT6 and configure the same AHB clock frequency of 180 MHz.

The SDRAM began to work immediately but NandFlash failed to work.

NandFlash MT29F2G08ABAEAWP-IT is connected to fmc_bank3 ( address 0x80000000 ) a bank that is in both processors.

Please help to understand what could be the reason and what should be changed in the initialization to FMC controller.

Tesla DeLorean · ‎2016-03-18

Posted on March 18, 2016 at 18:01

Now working how exactly? Are there signals on the pins?

Probably want to make sure the NAND resides and is accessed through a non-cacheable region.

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dmitriy · ‎2016-03-21

Posted on March 21, 2016 at 08:51

My board is fully operational. All peripherals including Flash and sdram worked properly on this board with STM32F429 processor. Afterreplacing the STM32F429 by STM32F746 all peripherals are working properly except nandflash.

Please explain what did you mean

'' Probably want to make sure the NAND resides and is accessed through a non-cacheable region ''.