Vis kildekode

This article is specially made for remote access during the COVID-19 pandemic.

=== Using https://view.uio.no to access the UiOs services ===

# For the best user experience, we recommend download VMware on your own laptop. Follow the instructions on [https://www.uio.no/english/services/it/home-away/kiosk/programkiosk/index.html this guide].
# When you're logged in, you should be able to find the instance called "Ifi workstation". Start the instance by double clicking it. See icon in Figure 1.

[[Image:Ifi_workstation.png|thumb|200px|Figure 1: Ifi workstation icon]]

=== Use-case: Xilinx Suite ===

The full version of Xilinx software used in [https://www.uio.no/studier/emner/matnat/ifi/IN3160/ in3160] and [https://www.uio.no/studier/emner/matnat/ifi/IN5200/index-eng.html in5200] is only accessible at UiO's hosts. To access the tools, follow these steps.

# Follow the steps in the above section.
# To access the the Xilinx tools, <code>ssh</code> to a IFI computer:
 ssh -Y <assigned_host>.ifi.uio.no
See example in Figure 2. If you don't have an assigned computer or the assigned computer is overloaded you can use:
 ssh -Y login.ifi.uio.no
Remember to set up the <code>.bashrc</code> file as described [https://robin.wiki.ifi.uio.no/FPGA_tools here] to make it work.

[[Image:Vivado_vmware.png|thumb|200px|Figure 2: Running Vivado on VMware]]

==== Special setup on LISP ====

To be able to program ZedBoards, and see motor and 7-segment display, do the following:

# Follow the steps in the first section.
# To access the the Xilinx tools, <code>ssh</code> to a IFI computer: <code>ssh -Y <assigned_host>.ifi.uio.no</code>
# In the terminal use the premade alias <code>zedboard-webcam</code> to be able to monitor the ZedBoard. '''Note:''' Only '''one''' user at a time can use <code>zedboard-webcam</code> at a time, so remember to <code>exit</code> when you are finished.
# On the assigned hosts you should be able to program the ZedBoard. See example in Figure 3.

[[Image:Lydney.png|thumb|200px|Figure 3: Running Vivado and <code>zedboard-webcam</code> on LISP]]

Alternativly, you can <code>ssh</code> directly from your own computer. To be able to get GUI aplications running, remember the -Y flag. On Windows you're required to use [https://www.mn.uio.no/ifi/tjenester/it/hjelp/startpakke/Programmer/Win/SSH/putty.html PuTTy] and on MacOS we recommend  [https://www.mn.uio.no/ifi/tjenester/it/hjelp/it-vakten/laptophjelp/laptophjelp-guide/tilgang-til-uio-hjemmeomrade-og-ifi-linux-terminal/ssh/ XQuartz]. Not that we don't recommend this method as it depends on the setup of your local machine. Hence, we won't necessarily give support if you don't manage to set it up.

 '''"Zedboard" commands'''
 Zedboard-webcam  Displays the webcamera showing the zedboard connected to the computer 
 Zedboard-wipe    Wipes the board (use this before leaving the machine)
 Zedboard-test    Displays a testpattern on the seven segment display. Should be readable.
 
 Note that programming the zedboard (wipe/test or other) takes at least 15 seconds

==== TCL script for programming a board without vivado ====
If you are able to generate your .bit file on your own PC, you can choose to program the board using a script rather than through vivado. 
Here are the tcl commands used in the zedboard-wipe script:
 # Connect to the Digilent Cable on localhost:3121
 open_hw_manager
 connect_hw_server -url localhost:3121
 #current_hw_target [get_hw_targets */xilinx_tcf/Digilent/12345] Alternative but not as flexible
 current_hw_target [lindex [get_hw_targets] 0]
 open_hw_target
 
 # Program the Device
 current_hw_device [lindex [get_hw_devices] 1]
 set_property PROGRAM.FILE {'''./my_file.bit'''} [lindex [get_hw_devices] 1] 

 program_hw_devices [lindex [get_hw_devices] 1]
 refresh_hw_device [lindex [get_hw_devices] 1]

Store these in ''"my_scipt.tcl"'', and change '''my_file.bit''' to the bitfile name in use. Then run the command
 vivado -mode batch -source ''my_script.tcl''