Write data to and read data from an SPI device
Simulink Support Package for Arduino Hardware / Common
Write data to and read data from an SPI device connected to your Arduino board. Using this block, you can access an SPI device to measure quantities such as temperature, and pressure. You can also access an SPI device to support WiFi connectivity, and to access an SD card to store data.
Click View pin map to open the Arduino Pin Mapping table .
To know how to assign pins for the block, see Pin Mapping for Arduino Timer Independent Blocks.
This limitation is not applicable when using Arduino® MKR1000, Arduino MKR WIFI 1010, and Arduino MKR ZERO boards.
In a Simulink® model, the SPI WriteRead block is supported only if:
No blocks from the Ethernet shield library or the WiFi library are already present in the model.
External mode is over serial.
Port_1 — Input port to write data to SPI slave
[Nx1] or [1xN] array
The input port through which the block accepts a single dimensional array of values to write to the slave device.
Port_1 — Output port to read data from SPI slave device
Output port from which the block receives data from SPI slave device.
Slave select (SS) pin — Slave select pin to which SPI slave device is connected
10 (default) | target hardware pin
Enter the pin number on the Arduino board to which the SPI slave device is connected. The SPI master pulls the SS pin of the selected slave to a low (0) value to start the communication. See Pin Mapping for Arduino Timer Independent Blocks to know the SS pin restriction with different Arduino boards.