The CDMA-based system that you designed in this chapter requires application software to execute on the board. This section describes the details of this software.
The main() function in the application software is the entry point for the execution. It initializes the source memory buffer with the specified test pattern and clears the destination memory buffer by writing all zeroes.
The application software then configures the CDMA register sets by providing information such as source buffer and destination buffer starting locations. To initiate DMA transfer, it writes the number of bytes to be transferred in the CDMA register and waits for the CDMA interrupt to happen. After the interrupt, it checks the status of the DMA transfer and compares the source buffer with the destination buffer. Finally, it prints the comparison result in the serial terminal and stops running.