Page Comparison

---

Design Components

• petalinux_bsp
• heartbeat.elf

---

Build Flow Tutorials

This tutorial uses both Vitis and PetaLinux tools. It is recommended to use separate shells for each of the tools.

Heartbeat Application

Anchor
heartbeat heartbeat

The heartbeat application is a FreeRTOS application that executes on RPU-0 after the FSBL has finished. This application is a simple dual task application that demonstrates communication between the two tasks by printing messages to the UART1 console.

• Create a new Vitis workspace.

  Code Block
  theme Midnight
  % cd $TRD_HOME/workspaces/ws_heartbeat % vitis -workspace . &

  
  

• Click 'Import Project' from the welcome screen, Choose 'Eclipse workspace' and select next.
• Uncheck 'copy projects into workspace', browse to the current working directory and make sure the heartbeat, and heartbeat_system are selected. Click Finish.
  
• Double click on 'heartbeat_system.sprj' and close the dialog box for platform.

     

• from the top menu tab choose 'File' →  'New platform', enter Project name as 'hw_platform_0' and select 'Next'.

             

• Choose 'Create from hardware specification (XSA)' and browse to the xsa file in the 'hwfile' directory of 'ws_heartbeat workspace',
• Select operating system as 'freertos10_xilinx' and processor as 'psu_cortexr5_0' and click Finish.

             

• In the System Project Settings tab, Add the new custom platform generated from xsa. Click Yes on the dialog box, when prompted to change the platform.

            

• double click on 'heartbeat.prj' in the Explorer tab, and  click 'Navigate to BSP settings' 

         

• modify BSP settings for Cortexr5_0 processor

        

• under overview panel select 'freertos10_xilinx' and modify 'stdin/stdout' to 'psu_uart_1', select ok.

        

• Right-click on the heartbeat project and select 'Build Project'.

                                                                        

• Copy the generated heartbeat executable into the PetaLinux BSP.

  Code Block
  theme Midnight
  cp heartbeat/Debug/heartbeat.elf $TRD_HOME/petalinux/bsp/images/linux

  
  

PetaLinux BSP

This tutorial shows how to build a boot image that includes the heartbeat application using the PetaLinux build tool. This step assumes you have run through the PetaLinux build in DM1 previously.

• Create a boot image.

  Code Block
  theme Midnight
  % cd $TRD_HOME/petalinux/bsp/images/linux % petalinux-package --boot --bif=../../project-spec/boot/dm2.bif --force

  
  

• Copy the generated boot image to the dm2 SD card directory.

  Code Block
  theme Midnight
  % mkdir -p $TRD_HOME/sd_card/dm2 % cp BOOT.BIN $TRD_HOME/sd_card/dm2

  
  

---

Run Flow Tutorial

• See here for board setup instructions.
• Copy all the files from the $TRD_HOME/sd_card/dm2 SD card directory to a FAT formatted SD card.
• Power on the board to boot the images; make sure all power rail LEDs are lit green (Note: DS1 / FPGA_INIT_B LED remains Red as there is no bit stream to configure the FPGA).

• The user can now see FSBL prints on UART-0 and prints from heartbeat application can be viewed on UART-1 which is shown in the following picture:

  Code Block
  language bash theme Midnight
  Hello from Freertos example main Rx task (task number: 0) received string from Tx task: I am alive Rx task (task number: 1) received string from Tx task: I am alive Rx task (task number: 2) received string from Tx task: I am alive Rx task (task number: 3) received string from Tx task: I am alive Rx task (task number: 4) received string from Tx task: I am alive Rx task (task number: 5) received string from Tx task: I am alive Rx task (task number: 6) received string from Tx task: I am alive Rx task (task number: 7) received string from Tx task: I am alive Rx task (task number: 8) received string from Tx task: I am alive Rx task (task number: 9) received string from Tx task: I am alive Rx task (task number: 10) received string from Tx task: I am alive Rx task (task number: 11) received string from Tx task: I am alive Rx task (task number: 12) received string from Tx task: I am alive

  
  

---