topic How to send SPI message 24 bits frame using the MBD Toolbox in Simulink? in Model-Based Design Toolbox (MBDT)

How to send SPI message 24 bits frame using the MBD Toolbox in Simulink?

ext-rafael_barb — Wed, 18 Sep 2019 12:30:47 GMT

Hello,

I need to send the SPI message as described below:

I already set up the SPI config block as below:

However the SPI Master Transfer block is frozen for 8 bit data as can be viewed:

How can I do to transfer this SPI message with 24 bits frame?

Kind Regards, Rafael Barbosa

Re: How to send SPI message 24 bits frame using the MBD Toolbox in Simulink?

constantinrazva — Wed, 18 Sep 2019 13:12:57 GMT

Hello ext-rafael.barbosa@chassisbrakes.com‌,

You should use an uint8_t array - e.g.: DataStoreMemory block, uint8 type with value [1,2,3] for example - 3 x 8bits or a Constant block (the same, value [1,2,3] and type uint8).

Please let me know if you are having other issues with it.

Kind regards,

Razvan.