What are the correct SPI parameters that I should use in the Makefile for a sdk sample app?
Currently, this is what I use.
SPI_SPEED ?= 40
SPI_MODE ?= dio
SPI_SIZE_MAP ?= 4
It seems to work fine. However, the confusing part is that when I use SPI_MODE ?= qio, the module also works fine. Which exactly are the correct parameters?