How to connect Raspberry Pi to DAC MCP 4921 using SPI Simulink blocks?

I want to set an output voltage with a RaspberryPi with an DAC MCP4921 using Simulink, in particular using the new block "SPI Register Write" available in the latest Simulink version (without writing C code or Matlab code). In this block is required a Register Address where SPI has to write the value from the slave. Can anyone help me?

[Sylvain]

Looking at the datasheet, the write command register is not defined.

Can you try the "SPI Master Transfer" block with a terminator for the output?

You should send the a vector of [2x1] uint8 for the upper half and the lower half.

Answer 1

[Mark McBroom]

Would you want to use the SPI Read/Write/Master blocks to communicate with this external device, similar to this example that uses SPI to communicate with an external EEPROM device?

https://www.mathworks.com/help/supportpkg/raspberrypi/ref/communicating-with-an-eeprom.html