Maximum external flash size for ESP32

jimhelios
Posts: 39
Joined: Sun Nov 10, 2019 2:35 pm

Maximum external flash size for ESP32

Postby jimhelios » Mon Mar 01, 2021 10:00 pm

Hi All...

I want to make sure I read the ESP32 data sheet correctly. Did it say that it can have up to four external flash chips, but none can be bigger than 16 Megabytes?

WiFive
Posts: 3529
Joined: Tue Dec 01, 2015 7:35 am

Re: Maximum external flash size for ESP32

Postby WiFive » Tue Mar 02, 2021 6:00 am

No, the 16mb limit only applies to the cache.

jimhelios
Posts: 39
Joined: Sun Nov 10, 2019 2:35 pm

Re: Maximum external flash size for ESP32

Postby jimhelios » Tue Mar 02, 2021 6:26 am

Oh that's great thank you. I just ordered some Winbond 1Gb SPI chips to test with.

TGiles98
Posts: 4
Joined: Tue Oct 05, 2021 8:59 pm

Re: Maximum external flash size for ESP32

Postby TGiles98 » Tue Oct 05, 2021 9:02 pm

Hi,

how did the test with the 1 Mega Bit Winbond chip go?

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