1.33 UART Echo Interrupt

This example shows the read and write operation over a UART in a non-blocking manner. The peripheral interrupt is used to manage the transfer. It receives 10 characters from the terminal window and echoes them back.

To clone or download this application from Github, go to the main page of this repository and then click Clone button to clone this repository or download as zip file. This content can also be downloaded using content manager by following these instructions.

Path of the application within the repository is apps/uart/uart_echo_interrupt/firmware.

To build the application, refer to the following table and open the project using its IDE.

The following table shows the target hardware for the application projects.

• Connect the Debug USB port (J12) on the board to the computer using a micro USB cable
• Connect the USB to UART port (J25) on the board to the computer using a micro USB cable

• Connect the Debug USB port (J1) on the board to the computer using a micro USB cable

• Connect the Debug USB port (J500) on the board to the computer using a micro USB cable
• Connect the USB to UART port (J400) on the board to the computer using a micro USB cable

1. Open the Terminal application (Ex.: Tera term) on the computer
2. Connect to the “USB to UART” COM port and configure the serial settings as follows:
   • Baud : 115200
   • Data : 8 Bits
   • Parity : None
   • Stop : 1 Bit
   • Flow Control : None
3. Build and Program the application project using its IDE
4. See the following message in the console:

   

5. Type 10 characters in terminal
6. Entered 10 characters is echoed back and LED is toggled
   Following table provides the LED names:

   Board	LED Name
   PIC32MK GP Development Kit	LED1
   PIC32MK MCJ Curiosity Pro Board	LED2
   PIC32MK MCM Curiosity Pro Board	LED1