1.17 WDT Timeout

This example application configures the WDT peripheral to generate a reset after 4 seconds. The application toggles an LED and keeps refreshing the WDT every 1 seconds. User can enter a character on the UART terminal to emulate a lockup situation. The application stops toggling the LED and stops refreshing the WDT upon receiving a character on the UART terminal. After 4 seconds, the WDT timer expires and resets 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/wdt/wdt_timeout/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.

1. Open the Terminal application (Ex.:Tera term) on the computer
2. 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
3. Build and Program the application using its IDE
4. The console displays the following message

   

5. Observe the LED toogle every 1 second
6. Enter a character on the terminal to emulate a lockup situation
7. Observe the following output on the terminal. WDT should reset the application in 4 seconds