This post lists the commands to create, configure and test a PetaLinux Tools project using PetaLinux Tools 2017.4.
Before you Start
If you haven't installed PetaLinux Tools 2017.4 go through Download and Install Xilinx's 2017.4 PetaLinux Tools.
This write up connects to a hw_server to test the build. It uses a COM port to see output from the unit.
Steps
1. Create a directory for all PetaLinux projects
2. Copy an HDF to it
3. Set Up the Environment
You should see:
4. Create your project
You should see:
5. Configure it with an HDF
You should see:
6. Build it
You should see after a few minutes:
7. Test it
7.1 Connect to your COM port via minicom
Note: type Control-A then type X to quit
-o: skip init code
-w: turns line-wrap on at startup by default
-C filename: open capture at start up
Note from minicom man:
Minicom keeps it's configuration files in one directory, usually /var/lib/minicom, /usr/local/etc or /etc. To find out what default directory minicom has compiled in, issue the command minicom -h.
Here's the output on my machine:
7.2 Test the build via jtag with
Note: even though it says --kernel, this command downloads the following binaries:
PMUFW, FSBL, A Linux FIT image, the Device Tree Binary, a "light boot loader," compiled by PetaLinux (called linux-boot.elf) and Arm Trusted Firmware (called bl31.elf).
You should see a kernel dmesg output on the com port and a log in prompt:
Log in with root, password is root.
8. Fix JTAG Boot a second, third, fourth time...
The jtag boot command only works once for me. To build something a little more robust I created the following.
8.1 Output the XSCT TCL commands that PetaLinux Tools uses
This will output:
Change the script to the following:
8.2 Boot with
8.3 If things still don't work, you get an error about cores being powered down, then run xsct and paste in each command.
Suggestions to Xilinx
1. Fix needing to set DISPLAY=dummy for xsct to run from the command line
You should not need to set a DISPLAY variable to run a command line tool:
The work around is presented at: https://www.xilinx.com/support/answers/67132.html "XSCT 2016 - Error: Xvfb is only supported on Linux"
Please fix this ASAP.
References
