ESP12F SPI bus pins
Posted:
Sat Jan 02, 2016 2:34 pmby 404hult
I have searched for information about connection the bottom SPI bus to a SD card module but no success...
Do the Arduino IDE support this SPI setup?
Have anyone used the bottom pins and/or want to share information?
/404hult
Re: ESP12F SPI bus pins
Posted:
Tue Jan 05, 2016 8:22 pmby wififofum
The "bottom" pins are shared with the flash chip so there are lots of considerations when trying to multiplex another spi device such as boot behavior, chip selects, flash caching, etc.
Re: ESP12F SPI bus pins
Posted:
Tue Jan 05, 2016 8:40 pmby martinayotte
You're right ! Not much info on those pins !
It would be interesting to know how we can attach, let say for example, and additional Flash, and SDCard, etc, without needing to much other pins except for CS ...