Getting Started Application on Curiosity PIC32MX470 Development Board

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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:

Reference Training Module: Getting Started With Harmony v3 Peripheral Libraries on PIC32MX 470 MCUs
This application demo builds and works out of box by following the instructions above in “Running the Demo” section. If you need to enhance/customize this application demo, you need to use the MPLAB Harmony v3 Software framework. Refer links below to setup and build your applications using MPLAB Harmony.
- How to Setup MPLAB Harmony v3 Software Development Framework
- How to Build an Application by Adding a New PLIB, Driver, or Middleware to an Existing MPLAB Harmony v3 Project
- MPLAB Harmony v3 is also configurable through MPLAB Code Configurator (MCC). Refer to the below links for specific instructions to use MPLAB Harmony v3 with MCC.

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