GlobalCorrelator

Minimal project to test an example HLS IP. A block RAM with values filled from a coe init-file are provided to the HLS IP. The output is watched with ILA.

n.b. this runs in Vivado 2016.2 right now because the BRAM IP was built in that version

This current example can be run on the Pulsar with part number: xc7vx690tffg1927-2.
You also need to know the clock pins for your setup. Pulsar has a 200 MHz LVDS on pins AU15 (+) and AV15 (-). This is defined in the xdc/constraints.xdc file

Preparing the HLS IP

cd ../HLSIPs
vivado_hls -f run_hls.tcl
cd -

Opening the Project

The project is built on the fly from a Tcl script.

After setting up Vivado (settings and licenses), do:

vivado -mode batch -source build.tcl
vivado top/top.xpr &

Running the Synthesis/Implementation

From the Flow Navigator, select Run Synthesis. From the Flow Navigator, select Run Implementation then generate bitfile.

Alternatively, you can add this to the bottom of the build.tcl to get the bit file directly with these lines:

update_compile_order -fileset sources_1
launch_runs synth_1 -jobs 4
wait_on_run synth_1

launch_runs impl_1 -to_step write_bitstream
wait_on_run impl_1

This will make two files you will need: top/top.runs/impl_1/top.bit top/top.runs/impl_1/debug_nets.ltx

Running on the Pulsar board

• Power on board, connect JTAG
• Open up Vivado, "Open Hardware Manager"
• Under the "Hardware window" push "autoconnect", you should see your device in the list "xc7vx..."
• Right click on the device and choose "Program Device...", choose the top.bit and debug_nets.ltx files that were created in the last step. When the device is programmed, you should see as one of the IPs hw_ila_1
• Et voila! You should see traces as seen by hw_ila_1

Updating the Project

You can edit the VHDL in the Vivado GUI or in your favorite Unix text editor.

Obselete for now...

At least for now, we will try to use the automatically generated Tcl script to build the project. To generate it, select File > Write Project Tcl... to create an output file called build.tcl with "Do not import sources" selected. Alternatively, you can do this in the Tcl Console:

write_project_tcl -no_copy_sources -force {/home/kreis/GlobalCorrelator/build.tcl}

Conveniently, at the top of the generated Tcl script, it will tell you the files you should be sure to check into git.