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TheNuclearDart / bringup

STM32F7 discovery board bringup
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External RAM bringup #7

Closed TheNuclearDart closed 2 years ago

TheNuclearDart commented 2 years ago

Bringup external RAM that is present on the board.

Currently, we are only using the SRAM and TCM on the board. The external RAM probably isn't quite needed yet, but it might be nice to have (and cool to do).

TheNuclearDart commented 2 years ago

Doesn't look like there's a HAL layer for this, only an LL layer (using the STM32 HAL library)

E: Incorrect, hal_sdram seems to exist

TheNuclearDart commented 2 years ago

Part is ISSI IS42S32400F-6BL

TheNuclearDart commented 2 years ago

https://community.st.com/s/question/0D50X0000BRWCoISQX/fmc-and-sdram-example

Useful topic in general, also actually has the timing (I believe) for the board I have.