How do I use 3 wire SPI communication on F28027 using the Simulink embedded coder package?

Hi,

I'm new to programming microcontrollers through Simulink and I have run into a problem with the 3-wire SPI. I am using the Launchpad F28027 kit.

I am not able to get the receive to work. I have tried to transmit some random data and it works. However, when I try to use the receive SPI block, I do not see anything (not even the clocking signal).

I read that for the 3-wire system, I am supposed to write some dummy data to SPI, but I have not been able to figure out how to do this in Simulink.

Can somebody help with this?

Udai