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PIT start stop

This example application shows how PIT can be started and stopped at runtime.


Pushing the user switch will stop/start the PIT counter, which in turn stops/starts the LED toggling.

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/pit/start_stop/firmware .

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

Project Name Description
sam_9x60_curiosity.X MPLABX project for SAM9X60 Curiosity Development 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_9x60_curiosity.X SAM9X60 Curiosity Development Board

Setting up SAM9X60 Curiosity Development Board

  • Connect a programming cable from JTAG connector J12 on board to programmer(J-32 Debugger).
  • Connect programmer(J-32 Debugger) to computer using a micro USB cable.
  • Connect the USB port J1 on board to the computer using a micro USB cable (to power the board).

Running the Application

  1. Build and Program the application using its IDE
  2. Press the switch to start toggling the LED
  3. Press the switch again to stop toggling the LED

Refer to the following table for LED name:

Board LED Name Switch Name
SAM9X60 Curiosity Development Board RGB_LED(Green) USER SW

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