The attached code is used to demonstrate UART full duplex mode in ADSP-BF548 Ezkit using a simple Pushbutton logic. The pushbutton is used for controlling the transmit interrupt.
After running the attached code on both the Ez-kits, the receivers will be ready to accept data. Only when pushbutton is pressed, the transmit interrupt occurs and transmission begins. Since pushbutton GPIO(Port B-8) pins of both the processors are connected externally, transmit interrupt is signaled simultaneously in both the processors. Hence transmission and reception occur simultaneously.
For external connections, refer the read_me.txt file.