Tcl Cheat Sheet

Posted : admin On 1/29/2022

Tcl automation is one of the most powerful features integrated into the Vivado and Xilinx SDK tools and should be fully exploited to maximize your productivity as an FPGA developer. In this post I’ve put together a “cheat sheet” of some of the most useful commands and tricks that you can use to get more done through Tcl scripting. If you want more things added to the list, please let me know in the comments section at the end.

He created a simple one-page cheat sheet that listed all of the Tcl language commands. In the spirit of freely sharing with other users, he uploaded his quick reference to one of the Tcl archive sites. Some time later, Paul Raines created a nice quick reference for the commands provided by the Tk toolkit. In Tcl read/write/append operation can be performed on a file. Open command is used to open file and close command used to close file. Gets and puts command.

Vivado Tcl Automation Cheat Sheet

Get the Vivado install path Useful when you need access to the IP sources.

Get the top level module name of a Vivado project We often need to know the top level module of a Vivado design so that we can appropriately name other things, such as the SDK hardware project. I think the easiest way to get this name is by searching for one of the files in the Vivado project that uses the top level module name. Some of these files are: *.bit, *.hwdef, *.sysdef, *.hdf

Open a Vivado project We first open a project in the Tcl script to be able to synthesize, implement and export the design.

Synthesize a Vivado project The project has to be opened first.

Implement a Vivado project The project has to be opened first.

Export a Vivado project for SDK The code below works out the top module name from the bitstream file, then creates a .sdk subdirectory and then uses the write_sysdef command to export the design.

Tcl regex cheat sheet

More info on Vivado Tcl For more information on the Vivado Tcl commands, refer to the Vivado Design Suite Tcl Command Reference Guide (UG835).

Tcl cheat sheet 2019SheetTcl cheat sheet printable

Xilinx SDK Tcl Automation Cheat Sheet

Get the Xilinx SDK install path Useful when you need access to the driver and library sources.

Create a hardware project in an SDK workspace To create a hardware project, you need to provide a name for the hardware project, such as ${top_module_name}_hw_platform_0, and the path to the .hdf file which is the exported Vivado project and is usually located in the Vivado project files in the $vivado_folder.sdk subdirectory. You can avoid an error message, by checking to see if it exists already.

Tcl Cheat Sheet Pdf

Get the name of the processor in the design When creating software applications, we have to specify which processor the application will execute on. To find out what processors are available in the hardware project, you can parse the output of the getperipherals procedure. The following function will return the first processor that it finds.

Tcl Cheat Sheet

Create an SDK workspace We really just target a directory as the SDK workspace, and if it’s empty, Xilinx SDK creates all of the files to describe the workspace.

Add a local repository to the workspace If your applications have to refer to some custom or modified libraries, then you will typically place them in a remote directory and add this directory as a local SDK repository to your workspace. You have to use the “setws” command first.

Tcl Cheat Sheet Pdf

Create a software application from one of the Xilinx SDK templates Xilinx SDK comes with a few software application templates which are useful for doing basic hardware tests when bringing up new boards. The code below creates the lwIP Echo Server application. Notice that the code refers to the function get_processor_name which was described above.

Build the BSPs and software applications

More info on SDK Tcl A simple Google search brings up lots of old information about the SDK batch mode which has changed a lot since 2016.1. The best way to get more information about the Xilinx SDK Tcl commands is by going into the Xilinx SDK Help and searching with the keywords “batch mode”: 1. Open Xilinx SDK 2. Select Help->Help Contents 3. Type “batch mode” in the search field and press Enter. 4. Click on “XSCT Commands” in the search results. 5. Click on “SDK Projects” on the XSCT Commands page that opens.

Tcl Cheat Sheet Download

There is also some limited but recent information on this answer record: