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32-bit MCU Reference Applications
Curiosity PIC32MX470 Development Board
Getting Started
1

Getting Started Application on Curiosity PIC32MX470 Development Board

Download

Description

The application reads the current room temperature from the temperature sensor on the MikroElectronika Weather click board. The temperature read is displayed on a serial console periodically every 500 milliseconds. The periodicity of the temperature values displayed on the serial console is changed to one second, two seconds, four seconds, and back to 500 milliseconds every time you press the switch S1 on the Curiosity PIC32MX470 Development Board. Also, LED1 is toggled every time the temperature is displayed on the serial console.

Modules/Technology Used:

  • Peripheral Modules
    • I2C
    • Timer
    • Core Timer
    • GPIO
    • UART
    • DMA

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/pic32mx470_curiosity

  • 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 Type-A male to mini-B USB cable to mini-B DEBUG USB port to power and debug the PIC32MX470 Curiosity Development Board.
  • Connect the MikroElectronika Weather click board on the mikroBUS interface 1
  • Connect the MikroElectronika USB UART click board on the mikroBUS interface 2
  • Connect USB Type-A male to mini-B male cable to USB-UART serial port through mikroBUS interface 2

Programming hex file:

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 "PIC32MX470F512H"
  • 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

Programming/Debugging Application Project:

  • Open the project (pic32mx470_getting_started\firmware\pic32mx470_curiosity.X) in MPLAB X IDE
  • Ensure "Starter Kits (PKOB)" is selected as hardware tool to program/debug the application
  • Build the code and program the device by clicking on the "Make and Program Device" 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)

  • Change the baud rate to 115200

  • You should see the temperature values (in °F) being displayed on the terminal every 500 milliseconds, as shown below

  • Also, notice LED1 blinking at a 500 millisecond rate

  • You may vary the temperature by placing your finger on the temperature sensor (for a few seconds)

  • Press the S1 switch on the Curiosity PIC32MX470 Development Board to change the default sampling rate to one second

  • Every subsequent press of switch S1 on the Curiosity PIC32MX470 Development Board changes the default sampling rate to two seconds, four seconds, 500 milliseconds and back to one second in cyclic order as shown below

  • While the temperature sampling rate changes on every switch S1 press, notice LED1 toggling at the same sampling rate

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 - Regenerated and tested application.
  • v1.2.0 - Regenerated and tested application.
  • v1.1.0 - Regenerated and tested application.
  • v1.0.0 - Released demo application