The SPI Slave Example demonstrates the use of the SPIS peripheral. It uses the SPIS driver - legacy layer .

In the main loop, the application prepares the SPIS for a transfer and waits until the transfer is completed. Every time a transfer is completed, the LED is toggled.

Setup

You can find the source code and the project file of the example in the following folder: <InstallFolder>\examples\peripheral\spis

Hardware configuration:

• Slave SCLK pin must be connected to Master SCLK.
• Slave CS pin must be connected to Master CS.
• Slave MOSI pin must be connected to Master MOSI.
• Slave MISO pin must be connected to Master MISO.

The default pin assignments for the SCLK, MOSI, and MISO lines can be found in sdk_config.h . The default pin assignment for the CS pin can be found in main.c .

Testing

Test the SPI Slave Example application by performing the following steps:

1. Compile and program the application.
2. Observe that no LED is toggled.
3. Connect the board to another board that runs the SPI Master Example .
4. Observe that the LED is toggled every 200 ms.