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GSM GPS Click example on SAM E51 Curiosity Nano Evaluation Kit

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Description:

The application demonstrates sending out a location-tagged SMS on SAM E51 Curiosity Nano Evaluation Kit using GSM GPS Click board.

## Modules/Technology Used:

  • Peripheral Modules
    • EIC
    • SYSTICK
    • GPIO
    • SERCOM (USART)

Hardware Used:

Software/Tools Used:

This project has been verified to work with the following versions of software tools:

Refer Project Manifest present in harmony-manifest-success.yml under the project folder firmware/src/config/sam_e51_cnano

  • Refer the Release Notes to know the MPLAB X IDE and MCC Plugin version. Alternatively, Click Here
  • Any Serial Terminal application like Tera Term terminal application.

Because Microchip regularly update tools, occasionally issue(s) could be discovered while using the newer versions of the tools. If the project doesn’t seem to work and version incompatibility is suspected, It is recommended to double-check and use the same versions that the project was tested with. To download original version of MPLAB Harmony v3 packages, refer to document How to Use the MPLAB Harmony v3 Project Manifest Feature

Setup:

  • Connect the SAM E51 Curiosity Nano Evaluation Kit to the Host PC as a USB Device through a Type-A male to micro-B USB cable connected to Micro-B USB (Debug USB) port

Programming hex file:

Note: The prebuilt hex file is configured to send SMS to a mobile phone number mentioned in gsm_gps_example.h (Macro - GSM_GPS_EXAMPLE_USER_MOBILE_NUMBER)

The pre-built hex file can be programmed by following the below steps.

Steps to program the hex file

  • Open MPLAB X IDE
  • Close all existing projects in IDE, if any project is opened.
  • Go to File -> Import -> Hex/ELF File
  • In the “Import Image File” window, Step 1 - Create Prebuilt Project, Click the “Browse” button to select the prebuilt hex file.
  • Select Device has “ATSAME51J20A”
  • Ensure the proper tool is selected under “Hardware Tool”
  • Click on Next button
  • In the “Import Image File” window, Step 2 - Select Project Name and Folder, select appropriate project name and folder
  • Click on Finish button
  • In MPLAB X IDE, click on “Make and Program Device” Button. The device gets programmed in sometime
  • Follow the steps in “Running the Demo” section below

Configure Mobile Phone Number:

  • Open the project (gsm_gps/firmware/sam_e51_cnano.X) in MPLAB X IDE
  • Open header file gsm_gps_example.h

  • Define the macro to your mobile phone number preceded by country code.
    For example, Below is the macro definition to configure an Indian mobile phone number “1234567890”

    Note: “+91” is the country code for India in the above screenshot and “1234567890” is a dummy phone number.

Programming/Debugging Application Project:

  • Ensure the project (gsm_gps/firmware/sam_e51_cnano.X) is open in MPLAB X IDE
  • Ensure “SAM E51 Curiosity Nano” is selected as hardware tool to program/debug the application
  • Build the code and program the device by clicking on the “make and program” button in MPLAB X IDE tool bar
  • Follow the steps in “Running the Demo” section below

Running the Demo:

  • Open the Tera Term terminal application on your PC (from the Windows® Start menu by pressing the Start button)
  • Set the baud rate to 115200
  • Follow instructions on the screen to send SMS to the configured mobile phone

Note: The message “Location information not found yet! Try Again” appears when the GPS receiver hasn’t yet acquired and tracked satellites to provide position information.

Instructions to add GSM GPS functionality to your application:

You could use this demonstration as an example to add GSM GPS functionality to your MPLAB Harmony v3 based application. Follow the below steps.

  1. If you haven’t downloaded the GSM GPS demo yet Click Here to download, otherwise go to next step
  2. Unzip the downloaded .zip file
  3. From the unzipped folder gsm_gps/firmware/src, copy the folder click_routines to the folder firmware/src under your MPLAB Harmony v3 application project
  4. Open MPLAB X IDE
  5. Open your application project
  6. In the project explorer, Right click on folder Header Files
    and add a sub folder click_routines by selecting “Add Existing Items from Folders…”
  • Click on “Add Folder…” button

  • Select the “click_routines” folder and select “Files of Types” as Header Files

  • Click on “Add” button to add the selected folder

  • The GSM GPS click example header files gets added to your project

  1. In the project explorer, Right click on folder Source Files
    and add a sub folder click_routines by selecting “Add Existing Items from Folders…”
  • Click on “Add Folder…” button

  • Select the “click_routines” folder and select “Files of Types” as Source Files

  • Click on “Add” button to add the selected folder

  • The GSM GPS click example source files gets added to your project

  1. The GSM GPS click example uses the USART and Timer peripherals. The configuration of these peripherals for your application depends on the 32-bit MCU and development board you are using.

    • Configure USART: - Add the USART peripheral block to the MCC project graph
      • Configure USART Pins using MCC Pin configuration Window
        The USART configuration depends on - 32-bit MCU - 32-bit MCU development board - The socket on which you have mounted the Heart Rate 9 click board
        Example: The GSM GPS click example on SAM E51 Curiosity Nano Evaluation Kit uses mikroBUS socket #1 on the Curiosity Nano Base for Click boards to mount the GSM GPS click board. The USART lines from MCU coming to this socket are from the SERCOM4 peripheral on the MCU.
        MCC Project Graph - USART configuration

      MCC Pin Configurator - USART pin configuration

    • Configure GSM GPS Click Reset Pin: - Configure GSM GPS Click Reset Pin using MCC Pin configuration Window
      The Power Pin configuration depends on - The socket on which you have mounted the GSM GPS click board
      Example: The GSM GPS click example on SAM E51 Curiosity Nano Evaluation Kit uses mikroBUS socket #1 on the Curiosity Nano Base for Click boards to mount the GSM GPS click board. The Power Pin line from the GSM GPS Click coming to this socket is PA07 on the MCU.
      MCC Pin Configurator - Power pin configuration

    • Configure Timer:
      • Configure Timer peripheral block in the MCC project graph
        The Timer configuration depends on - 32-bit MCU
        Example: The GSM GPS click example on SAM E51 Curiosity Nano Evaluation Kit uses SysTick timer module on the MCU to implement the time requirement of GSM GPS click routines.
        MCC Project Graph - SysTick configuration
    • Map Generic Macros:
      • After generating the project, following the above configuration, map the generic macros used in the click routines to the Harmony PLIB APIs of the 32-bit MCU your project is running on
      • The generic macros should be mapped in the header file click_interface.h

        Example: The GSM GPS click routines for the example on SAM E51 Curiosity Nano Evaluation Kit uses the following Harmony PLIB APIs

  2. The click_routines folder contain an example C source file gsm_gps_example.c. You could use gsm_gps_example.c as a reference to add GSM GPS functionality to your application.

Comments:

Revision:

  • v1.6.0 - Regenerated and tested the application
  • v1.5.0 Removed MHC support, Regenerated and tested application.
  • v1.4.0 Added MCC support, Regenerated and tested application.
  • v1.3.0 - Created application example


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