I'm trying to use Code Composer Studio and Control Suite's example code "sci_loopback_cpu01" to send an integer from on f28379d board's sci_A tx pin to an sci_B rx pin on another board. I'm trying to use Simulink's sci_receive block. All the code is is the spi_receive block and its output sent to a display. I tried to run this in external mode but external mode could not connect to the board. Additionally, I added code where the blue led on the board turns on/off when an integer>0 is transmitted (the CCS code repeats integers it sends in an infinite loop, so the led should blink a few times a second), but the led does not blink, indicating no data is being transferred. I set up the receive board to have GPIO 19 as rx and the transmit board to have GPIO 29 as tx.
Have I set up the hardware correctly to do this? Have I set up the software (at least on the Simulink end) to do this? I attached the simulink code and the CCS code to this post.
Thank you for any help you can provide,