Current status of external SPI SRAM support?

fesp32@joov.de
Posts: 13
Joined: Tue May 02, 2017 9:33 am

Current status of external SPI SRAM support?

Postby fesp32@joov.de » Wed Oct 18, 2017 8:24 am

What is the current status of the external SPI SRAM support?

I am referring to the ''nice' way of connecting an SPI SRAM, supported by the MMU to make the SPI SRAM visible as normal RAM in the memory map.

In the errata document I can see that one problem may have been fixed, but a remaining one persists. But I cannot infer whether the feature is now usable or effectively unusable. What is the current status? Did anyone try this out?

Cheers,
Johannes

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loboris
Posts: 259
Joined: Wed Dec 21, 2016 7:40 pm

Re: Current status of external SPI SRAM support?

Postby loboris » Wed Oct 18, 2017 8:54 am

SPIRAM support is fully integrated into latest esp-idf master branch and latest xtensa toolchain.
I've tested it in complex application and so far it works without issues.

WiFive
Posts: 1164
Joined: Tue Dec 01, 2015 7:35 am

Re: Current status of external SPI SRAM support?

Postby WiFive » Wed Oct 18, 2017 8:56 am

One bug is fixed in rev1 and the other is worked around in the newest compiler release.

fesp32@joov.de
Posts: 13
Joined: Tue May 02, 2017 9:33 am

Re: Current status of external SPI SRAM support?

Postby fesp32@joov.de » Wed Oct 18, 2017 9:09 am

Many thanks for the answers! Sounds very good!

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