This is the documentation for the latest (main) development branch of Zephyr. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

CSK6 spi master

Overview

This sample demonstrates how to use CSK6 spi master peripheral to transimit/recieve data. This sample enable spi hardware Chip-Select function in default, users could disable it by defining an overlay file that rewrite the spi node and remove the cs-gpios item, and then edit the menuconfig to enable the software Chip-Select function and select a gpio pin as the cs pin.

Building and Running

Make sure you have the CSK6 connected over Jlink debuger.

The sample can be built and flashed as follows:

west build -b csk6 samples/boards/csk6/spi
west flash

Sample Output

To check output of this sample, any serial console program can be used (i.e. on Linux minicom, putty, screen, etc) This example uses minicom on the serial port /dev/ttyUSB0:

$ minicom -D /dev/ttyUSB0 -b 115200

*** Booting Zephyr OS build 6d9b2a8c2aee  ***
SPI test start
SPI thread created
[Master]spi send data
[Master]spi received data
0x90x80x70x60x50x40x30x20x1
[Master]spi send data
[Master]spi received data
0x90x80x70x60x50x40x30x20x1
[Master]spi send data
[Master]spi received data
0x90x80x70x60x50x40x30x20x1