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STM32F4 PSRAM configuration

Question asked by arg on Sep 3, 2014
Latest reply on Sep 4, 2014 by prasad.balmukund

Hello,

At the moment I am designing a PCB with the STM32F4 and PSRAM. Are the FSMC_NEx signals the bank switch signals? Can I use all the FSMC_NEx signals for the PSRAM or are certain banks only for a certain memory (NOR, NAND, etc.)? I use FSMC_NE3 for the CE. Can I use the FSMC_NE1 instead? What can I do with the ZZ signal (Sleep enable) of the PSRAM? Must I connect this PSRAM input to a I/O or a FSMC_? signal? Which FSMC_? signal? Thank you very much for your help.

Kind regards,
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Ps. Example/reference STM32 schematics are also welcome.

 psram.jpg

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