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DYaro.1
Visitor II
November 7, 2022
Solved

How can I connect external ram to stm32h743vit6?

  • November 7, 2022
  • 2 replies
  • 1976 views

How can I connect external ram to stm32h743vit6? I need at least 2 MB of external memory for the display (800x480 16 bit color). SDRAM unfortunately this microcontroller does not support

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Best answer by Tesla DeLorean

If the 100-pin device doesn't support enough of the FMC pins to support the memory(s) you need, you'll need to pick a larger part.

The H743 doesn't support QSPI based RAM, and I doubt it would have the bandwidth to support a display in any case.

Perhaps you should look at a display that has it's own frame buffer, and communicate with that via an interface it supports.

2 replies

Tesla DeLorean
Tesla DeLoreanBest answer
Guru
November 7, 2022

If the 100-pin device doesn't support enough of the FMC pins to support the memory(s) you need, you'll need to pick a larger part.

The H743 doesn't support QSPI based RAM, and I doubt it would have the bandwidth to support a display in any case.

Perhaps you should look at a display that has it's own frame buffer, and communicate with that via an interface it supports.

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Pavel A.
November 8, 2022

The Cube shows PSRAM capability. If that indeed does work, find a suitable PSRAM...