Hi David,
To achieve non-blocking transmission of larger data packets (>120 bytes) using the SCI transmit FIFO level interrupt in Simulink for the C2000, you can try out these steps:
1. Periodic Subsystem: Create a subsystem triggered every 50 ms to initiate the transmission of your data packet (including header and terminator).
2. SCI Transmit Block: Configure the C28x SCI Transmit block in Simulink:
- Select the appropriate SCI module.
- Set the desired baud rate.
- Uncheck "Wait until previous data transmitted".
3. FIFO Level Interrupt Handling: Implement custom code to manage the FIFO level interrupt:
- Enable the FIFO level interrupt to trigger when the FIFO is empty or reaches a certain level.
- Write an Interrupt Service Routine (ISR) to handle the interrupt, checking the FIFO level and loading more data if needed.
- Maintain a buffer to manage the data to be transmitted.
Use Embedded Coder to include the custom code within your Simulink model.
Hope this helps.
