1.15 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.
| Project Name | Description |
|---|---|
| cec1736_evb.X | MPLABX project for CEC 1736 Development Board |
Setting Up the Hardware
The following table shows the target hardware for the application projects
| Project Name | Board |
|---|---|
| cec1736_evb.X | MPLABX project for CEC 1736 Development Board |
Setting Up CEC 1736 Development Board
- Connect the USB port P2 on the board to the computer using a micro USB cable
Running the Application
- Open the Terminal application (Ex.:Tera term) on the computer
- Connect to the Virtual COM port and configure the serial settings as follows:
- Baud : 115200
- Data : 8 Bits
- Parity : None
- Stop : 1 Bit
- Flow Control : None
- Build and Program the application using its IDE
- The console displays the following message
- Type a line of characters and press the Enter key (NOTE: Number of characters entered before pressing enter key must be less than 256))
- Entered line will be echoed back and the LED is toggled
- The following table provides the LED names
| Board | LED Name |
|---|---|
| CEC 1736 Development Board | LED5 |