UART echo blocking

This example application demonstrates how to use the UART peripheral to transfer a block of data in a blocking manner.

Description

This example shows the read and write operation over a UART in a blocking manner. The CPU polls the peripheral register continuously to manage the transfer. It receives a line of characters from the terminal window and echoes them back.

Downloading and building the application

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_blocking/firmware .

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

Setting up the hardware

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

Setting up Curiosity PIC32MX470 Development Board

• To run the demo, the following additional hardware are required:
  • USB UART click board
• Connect mini USB cable to the ‘Debug USB’ connector(J3) on the board to the computer
• Install an USB UART click board on to the mikroBUS socket J5
• Connect mini USB cable between PC and the USB UART click board
  • Note: Ensure that the series resistors on the mikroBUS headers are of value 0 Ohms

Setting up PIC32MX274 XLP Starter Kit

• To run the demo, the following additional hardware are required:
  • USB UART click board
• Connect micro USB cable to the ‘Debug USB’ connector(J9) on the board to the computer
• Install an USB UART click board on to the mikroBUS socket J5
• Connect mini USB cable between PC and the USB UART click board

Running the Application

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 a line of characters and press the Enter key
6. Entered line will be echoed back and the LED is toggled

Following table provides the LED names:

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