PIT64B periodic interrupt
This application shows how to use PIT64B counter in interrupt mode.
Description
This application toggles an LED based off the PIT64B0 interrupt. Every time the PIT64B0 counter expires the LED toggles.
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/pit64b/led_toggle_interrupt/firmware .
To build the application, refer to the following table and open the project using its IDE.
| Project Name | Description |
|---|---|
| sam_9x75_eb.X | MPLABX project for SAM9X75-EB Evaluation Board |
Setting up AT91Bootstrap loader
To load the application binary onto the target device, we need to use at91bootstrap loader. Refer to the at91bootstrap loader documentation for details on how to configure, build and run bootstrap loader project and use it to bootstrap the application binaries.
Setting up the hardware
The following table shows the target hardware for the application projects.
| Project Name | Board |
|---|---|
| sam_9x75_eb.X | SAM9X75-EB Evaluation Board |
Setting up SAM9X75-EB Evaluation Board
Setting up the board
- Connect the DBGU0 J34 on board to the computer using a UART-FTDI cable (to enable debug com port)
- Connect the USB port J28 on board to the computer using a micro USB cable (to power the board)
Running the Application
- Build the application using its IDE
- LED toggles every 500 milliseconds
Refer to the following table for LED name:
| Board | LED Name |
|---|---|
| SAM9X75-EB Evaluation Board | RGB_LED(Blue) |