How to increase SPIRAM speed?

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Joined: Fri Aug 02, 2019 11:59 pm

How to increase SPIRAM speed?

Postby StridingDragon » Thu Dec 05, 2019 4:15 am

I am running an ESP32 with embedded 16MB SOM SPI RAM in quad IO mode at 80MHz. However, the RAM is rated at 133 MHz and I have not found a way to actually run the SPI bus for SPIRAM/PSRAM at any frequency other than 40MHz or 80MHz.

Could anyone point me in the right direction how to go about doing this to get the SPIRAM running at its full potential? I have a very memory-intensive application that could certainly benefit from the faster memory access as the read and write times are currently throttling it entirely.

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Joined: Tue Dec 01, 2015 7:35 am

Re: How to increase SPIRAM speed?

Postby WiFive » Thu Dec 05, 2019 6:45 am

80mhz is the max

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