Find a simple SPI demo model attached, illustrating signal exchange between one SPI Master and two SPI Slaves. As shown in the figure, the model is split into two subsystems; each subsystem can then be independently deployed to the corresponding real-time target. The first subsystem with one SPI Master and one SPI Slave is configured for the TI 28069 LaunchPad and the subsystem with one SPI Slave is configured for the TI 280049 LaunchPad.
A detailed description of the SPI protocol and signals, as well as considerations for overrun errors, are given in the SPI Master and SPI Slave block descriptions. Click on the "Help" button of these blocks or refer to the TI C2000 Target Support User Manual here.