Secure IoT Gateway application client on PIC32CM LE00 Curiosity Pro Evaluation Kit

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Description:

This project demonstrates the bad/fake/impersonating client side implementation of the secure IoT gateway application.

The PIC32CM LE00 Client reads the sensor data from the temperature and light sensors on the I/O1 Xplained Pro board connected to the EXT2 XPRO connector. The sensor data is displayed at the MIKROE OLED C Click display. The client waits for the host to initiate the authentication process. Since the authentication fails, the sensor data is not sent across the host through USART.

Modules/Technology Used:

• Peripheral Modules
  • SERCOM1 (I2C-ATECC608)
  • SERCOM2 (USART)
  • SERCOM3 (SPI)
  • SERCOM5 (I2C-IO1 Xplained Pro)
  • TC0
  • RTC
  • NVMCTRL
  • EVSYS
  • Systick
  • EIC
  • GPIO
  • ADC
  • PM
• Harmony Core
• Drivers
  • SPI
  • LE SPI 4-line
  • Crypto
• System Services
  • Console
  • Time
  • Input
  • CryptoAuthlib
    • Core
    • Trust&Go
• Graphics
  • GFX Core Legato

Hardware Used:

• PIC32CM LE00 Curiosity Pro Evaluation Kit
• I/O1 Xplained Pro Extension Kit
• MIKROE OLED C Click

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/pic321e_oled

• Refer the Release Notes to know the MPLAB X IDE and MCC Plugin version. Alternatively, Click Here.

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

Hardware Setup:

• Connect the MIKROE OLED C Click to the mikroBUS extension in the PIC32CM LE00 Curiosity Pro board
• Connect the I/O1 Xplained Pro Extension Kit to the EXT2 in the PIC32CM LE00 Curiosity Pro board
• Connect the jumper wires from PA22/PA23 for SERCCOM UART RX/TX to communicate with the client
• Connect the PIC32CM LE00 Curiosity Pro 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

PIC32CM LE00 Client

Demo Setup

For complete “Secure IoT Gateway application” demo setup, refer to demo readme.md inside the project directory (pic32cm_ls60_secure_iot_gateway)

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 “PIC32CM5164LE60100”
• 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 (pic32cm_ls60_secure_iot_gateway/firmware/pic32cm_le00_cpro_sg_client) in MPLAB X IDE
• Open pic32cm_le00_securegateway_client as the main project.
• Ensure “PIC32CM LE00 Curiosity Xpro” 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:

• Once the device is programmed, the I/O1 Xplained Pro sensor values will be read and displayed in the MIKROE OLED C Click display board.
• The client does not respond to the authentication request as it doesnt have an secure element to compute and respond
• On the host side, the display on OLED C board indicates unsuccessful authentication

Host MIKROE OLED C Click After Unsuccessful Authentication

Host Teraterm Output After Unsuccessful Authentication

Comments:

• Getting Started with the PIC32CM LE00/LS00/LS60 Curiosity Pro Board
• Reference Document: PIC32CM LS00/LS60 Security Reference Guide
• 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.
    • Create a new MPLAB Harmony v3 project using MCC
    • Update and Configure an Existing MHC-based MPLAB Harmony v3 Project to MCC-based Project
    • Getting Started with MPLAB Harmony v3 Using MPLAB Code Configurator
    • MPLAB Code Configurator Content Manager for MPLAB Harmony v3 Projects

Revision:

• v1.6.0 released demo application bad-client

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