Hi, I have a question about the following statement in FGH100M-J_Hardware_Design.
I would like to use FGH100M-J in SPI mode. How do I configure the FGH100M?
The SDIO interface can be switched to SPI mode by controlling SDIO_DATA3 and SDIO_CMD. Only SPI slave mode is supported. For details, please consult Quectel Technical Support.
Just use CONFIG_MORSE_SPI=y when loading the driver.
Does this mean that ”CONFIG_MORSE_SPI=y” is controlled by SDIO communication?
it means that when the driver is loaded, it is compatible with SDIO and SPI. During the driver loading process, it will switch to SPI mode through SDIO_CMD/SDIO_DATA3.
SDIO_CMD --- SPI MOSI
SDIO_DATA3 --- SDIO CS