MCAN FD Interrupt

This example application shows how to use the MCAN module to transmit and receive CAN FD
messages in interrupt mode.

Parent topic:Harmony 3 Peripheral Library Application Examples for SAMA5D2 Family

Description

This application transmits and receives CAN FD messages on the CAN bus. To run this
application, two evaluation boards of same type are required. These boards acts as
different nodes on the CAN bus. Same application is programmed onto both the boards.
Boards are connected to PC via UART. While running the application, user can send
and receive CAN FD messages between the boards using UART console applications
running on the PC.

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 repository or download as zip file. This content
can also be downloaded using content manager by following these instructions.

Path of the application within the repository is
apps/mcan/mcan_fd_operation_interrupt_timestamp/firmware.

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

Setting Up AT91Bootstrap Loader

To load the application binary onto the target device, we need to use at91bootstrap
loader. Refer to the at91bootstrap loader documentation for
details on how to configure, build and run bootstrap loader project and use it to
bootstrap the application binaries.

Setting Up the Hardware

The following table shows the target hardware for the application projects.

Setting Up SAMA5D29 Curiosity Development Board

HARDWARE REQUIRED

SETTING UP THE BOARD

• Connect ATA6563 click Board to SAMA5D29 Curiosity Development Board Kits as per the Pin connections shown below

  SAMA5D29 Curiosity Development Board	ATA6563 click Board
  CANTX0 (PIN4), mikroBUS1 Connector	RX (PIN 14)
  CANRX0 (PIN6), mikroBUS1 Connector	TX (PIN 13)
  3V3 (PIN7), mikroBUS1 Connector	3V3 (PIN 7)
  VDD_5V (PIN10), mikroBUS1 Connector	5V (PIN 10)
  GND (PIN8), mikroBUS1 Connector	GND (PIN 9)

• Connect ATA6563 click Board to each other using DB9 serial cable

• Connect the Debug USB port on the boards to the computer using a Type-C USB cables

• Connect the UART Debug port on the board to the computer using a FTDI to USB cable

Running the Application

1. Build the application using its IDE

2. Open the Terminal application (Ex.:Tera term) on the computer.

3. Connect to the Virtual COM port and configure the serial settings as follows:

   • Baud : 115200
   • Data : 8 Bits
   • Parity : None
   • Stop : 1 Bit
   • Flow Control : None

4. In the console associated with board 1, press “0� to transmit a CAN FD message

5. Transmitted message description and status will be displayed in the console window of board 1

6. Received message will be displayed in the console window of board 2

7. Follow the sequence below to send and receive different messages:

   • Press ‘1’ on board 1
   • Press ‘2’ on board 1
   • Press ‘3’ on board 1
   • Press ‘4’ on board 1
   • Press ‘0’ on board 2
   • Press ‘1’ on board 2
   • Press ‘2’ on board 2
   • Press ‘3’ on board 2
   • Press ‘4’ on board 2

8. If the steps are executed in this sequence, the final output in the consoles will be as below (console on the left is the transmitter (board 1) and the one on the right is receiver (board 2)):