1.1.17 SAM E54 Xplained Pro Evaluation Kit: Building and Running the UART Bootloader Applications

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 repo or download as zip file. This content can also be download using content manager by following these instructions.

Path of the application within the repository is apps/uart_bootloader/.

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

Setting Up SAM E54 Xplained Pro Evaluation Kit

  • Connect the Debug USB port on the board to the computer using a micro USB cable

Setting Up the Host Script

Running the Application

  1. Open the test application project test_app/firmware/sam_e54_xpro.X in the IDE.

  2. Build the project to generate the binary (Do not program the binary).

  3. Open the bootloader project bootloader/firmware/sam_e54_xpro.X in the IDE.

  4. Build and program the application using the IDE.

  5. Run the btl_host.py from command prompt to program the application binary.

     python <harmony3_path>/bootloader/tools/btl_host.py -v -i <COM PORT> -d same5x -a 0x2000 -f <harmony3_path>/bootloader_apps_uart/apps/uart_bootloader/test_app/firmware/sam_e54_xpro.X/dist/sam_e54_xpro/production/sam_e54_xpro.X.production.bin

  6. Following figure shows output of successfully programming the test application.

    • Rebooting and Reboot Done messages in below output signifies that bootloading is successful

  7. If above step is successful then the LED0 should start blinking.

  8. Open the Terminal application (e.g., Tera Term) on the computer.

  9. Configure the serial port settings as follows:

    • Baud: 115200
    • Data: 8 Bits
    • Parity: None
    • Stop: 1 Bit
    • Flow Control: None

  10. Reset or Power cycle the device.

  11. LED0 should start blinking and the user should see below output on the console.

  12. Press and hold the Switch SW0 to trigger Bootloader from test application and the user should see below output.

  13. Repeat Steps 5-11 once and jump to Step 14.

    • This step is to verify that bootloader is running after triggering bootloader from test application in Step 12

  14. Press and hold the Switch SW0 and then press Reset button or Power cycle the device to force trigger bootloader at startup.

  15. Repeat Steps 5-11 once.

    • This step is to verify whether bootloader is triggered by switch press at reset