I would like to pump a lot of data into ESP8266 so I want to use SDIO for high speed connection from a host microcontroller.
But the problem is primary SDIO/SPI pins already been used by flash chip (BTW, my test board is ESP-12-E).
Is it possible to switch a flash to HSPI (the second SPI as far as I know) so I can download and run my firmware?
Or is there any other way that my code can program SDIO without conflict?
I couldn't find any doc and sample code regarding this around here.
Any help would be greatly appreciated.
Regards,
SeanStatistics: Posted by i4vine — Thu Jan 07, 2016 6:25 pm
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