4 Results

The developed code example implements a full duplex communication between two AVR16EB32 CNANO boards using the previously described FSK modulation and demodulation techniques. If the two CNANO boards are connected to the same laptop/PC the communication between them uses only two wires. If each CNANO board is connected to a different PC, an additional wire for the ground is needed. The I/01 Xplained Pro Extension header on the CNANO Base connects the two boards.

Figure 4-1. Block Diagram
Figure 4-2. Hardware Setup
Figure 4-3. Serial Terminal Windows

The communication between the two CNANO boards is illustrated in Figure 4-3Figure 4-3. The boards are connected to the same laptop/PC. The low-side window displays the text typed in the top-side window and vice versa.

Figure 4-4. Modulation and Demodulation Processes Taking Place at the Same Time on a CNANO Board
Figure 4-5. Modulation and Demodulation Processes Taking Place at the Same Time on both CNANO Boards