RTC periodic interrupt
This example application shows how to use the RTC to generate periodic interrupts.
Description
This example application demonstrates how to use the 32-bit timer mode of the RTC to generate periodic ticks. It toggles an LED every time the callback is triggered.
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/rtc/rtc_periodic_timeout/firmware .
To build the application, refer to the following table and open the project using its IDE.
| Project Name | Description |
|---|---|
| sam_d21_xpro.X | MPLABX project for SAM D21 Xplained Pro Evaluation Kit |
| sam_da1_xpro.X | MPLABX project for SAM DA1 Xplained Pro Evaluation Kit |
Setting up the hardware
The following table shows the target hardware for the application projects.
| Project Name | Board |
|---|---|
| sam_d21_xpro.X | SAM D21 Xplained Pro Evaluation Kit |
| sam_da1_xpro.X | SAM DA1 Xplained Pro Evaluation Kit |
Setting up SAM D21 Xplained Pro Evaluation Kit
- Connect the Debug USB port on the board to the computer using a micro USB cable
Setting up SAM DA1 Xplained Pro Evaluation Kit
- Connect the Debug USB port on the board to the computer using a micro USB cable
Running the Application
- Build and Program the application using its IDE
- The LED blinks continuously
Following table provides the LED name:
| Board | LED Name |
|---|---|
| SAM D21 Xplained Pro Evaluation Kit | LED0 |
| SAM DA1 Xplained Pro Evaluation Kit | LED0 |