Hi Ed,

Are you the Ed Sutter from uMon bootloader author?

On 7/11/23, Ed Sutter <edsutte...@gmail.com> wrote:
> Hi,
> Are there any examples of application code accessing a SPI device on Nuttx?
> Thanks,

Normally NuttX applications don't access the SPI Bus directly, an SPI
device needs to be exported through the driver implementing its
function, so an SPI temperature sensor will create a /dev/temp0, an
SPI light sensor will create a /dev/light0, etc.

Exception to this is when you want to test the SPI Bus directly using
the SPI Tool (similar to I2C Tool idea), in this case you have to
enable CONFIG_SPI_DRIVER and
CONFIG_SYSTEM_SPITOOL (look at apps/system/spi).

BR,

Alan

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