1.1.2 PIC32CM SG00/GC00 Curiosity Pro: Building and Running the CAN 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/can_bootloader/.

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

Setting Up PIC32CM SG00/GC00 Curiosity Pro

  • PIC32MK MCJ Curiosity Pro is used for Host development kit
  • PIC32CM SG00/GC00 Curiosity Pro is used for Target development kit
  • Connect PIC32CM SG00/GC00 Curiosity Pro to another PIC32CM SG00/GC00 Curiosity Pro as per the pin connections shown below
    PIC32MK MCJ Curiosity Pro - 1PIC32CM SG00/GC00 Curiosity Pro - 2
    J504, CANH, PIN 1J502, CANH, CAN0
    J504, GND, PIN 2J502, GND, CAN0
    J504, CANL, PIN 3J502, CANL, CAN0
  • Connect the Debug USB port on the board to the computer using a micro USB cable

Building and Configuring CAN Host Applications

Using CAN NVM Host Application to Send the Application Binary to Target Development Kit

If the NVM Host development kit being used is other than PIC32CM SG00/GC00 Curiosity Pro then follow the steps mentioned in Configuring NVM Host Application Project.

  1. Open the NVM host application project host_app_nvm/firmware/pic32mk_mcj_curiosity_pro.X in the IDE.
    • If a NVM host application project of different development kit is used then open that project in the IDE
  2. Build and program the NVM host application using the IDE on to the Host development kit.
    • The prebuilt test application image available under host_app_nvm/firmware/src/test_app_images/image_pattern_hex_pic32cm_gc00_curiosity_pro.h will be programmed on to the Target development kit with default host_app_nvm project configuration
  3. Jump to Running the Application.

Running the Application

  1. Open the bootloader project bootloader/firmware/pic32cm_gc00_curiosity_pro.X in the IDE.
  2. Build and program the application using the IDE on to the Target development kit.
    • LED1 will be turned-on to indicate that bootloader code is running on the target
    • LED1 will turn on when the bootloader does not find a valid application; i.e., the first word of the application (stack pointer), contains 0xFFFFFFFF
  3. If the test application is being programmed, open the Terminal application (e.g., Tera Term) on the computer and configure the serial port settings for Target development kit as follows:
    • Baud: 115200
    • Data: 8 Bits
    • Parity: None
    • Stop: 1 Bit
    • Flow Control: None
  4. Press the Switch SW0 on the Host development kit to trigger programming of the application binary.
  5. Once the programming is complete:
    • LED0 on the Host development kit will be turned on indicating success
    • The Target development kit will be reset. Upon re-start, the bootloader will jump to the user application.
    • If the test application is programmed then LED1 should start blinking and the user should see below output on the Target development kit console
  6. Press and hold the Switch SW0 to trigger Bootloader from test application and the user should see below output.
  7. Press Reset button on the Host development kit to reprogram the application binary.
  8. Repeat Steps 4-5 once.
    • This step is to verify that bootloader is running after triggering bootloader from test application in Step 6