• Structure:
  • ACDC side:
    • communications handled by lvds_com
      • uses lvds_tranceivers.vhd
        • uses altlvds_tx and altlvds_rx
      • definitions are in Definition_Pool
  • ACC side:
    • communications handled by transceivers from acc_main.vhd
• Simulation
  • Make a project
    • Project name
      • ACC-ACDC communications
    • Project location
      • E:/acc/acc_acdc_sim
    • Default Library name
      • work
    • Copy Settings from
      • Copy Library mappings
  • Add a folder to the project “acdc”
    • Add existing files to the folder
      • In base source folder
        • deffinition pool
          • Folder “acdc”
          • Reference from current location
      • in folder RXTX
        • altlvds_rx0 altlvds_tx0, lvds_com, lvds_transceivers
    • In the Library tab, Make a library for the ACDC code “workacdc”
    • return to project tab
    • Select all files in the folder, right click and select compile->Compile Properties
      • In the general tab, change the “compile to library” to “workacdc”
    • right click on the selected files and choose compile->“compile selected”
  • Add a folder to the project “acc”
    • Add existing files to the folder
      • in the src folder
        • defs
          • into folder acc
      • in RxTx
        • altvds_*, rx_data_ram, rx_ram, lvds_transceiver, and transceivers.
          • folder “acc”
  • in Library tab, make a library “workacc”
    • creat: “a new library and a logical mapping to it”
    • name: workacc
    • physical name: workacc
  • back in Project tab, select all files under “acc”
    • right-click, select compile->compile properties
    • in VHDL tab, change Language syntax to “use 1076-2008”
      • Needed for transceivers.vhd
    • in General tab change “compile to library” to “workacc”
  • right-click on selected files and choose compile->Compile selected
  • From the “Compile” menu, select “compile order” and choose “auto generate”
  • (Can now choose compile->Compile all any time, and everything will go to the right place.
  • Make a testbench
    • the testbench will need to load the definitions from the libraries:

      • -- ACC defs<br>
        library workacc;<br>
        use workacc.defs.all;<br>
        -- ACDC defs<br>
        library workacdc;<br>
        use workacdc.Definition_Pool.all;<br>
        

      • It also needs the component declaration at the start of the architecture (before begin, so that it can be compiled)
      • The instantiation should be of this form:

        • acc_TRANSCEIVERS : transceivers<br>
          port map(<br>
            xCLR_ALL          => reset_global,<br>
            xALIGN_ACTIVE     => xalign_strobe,<br>
            xALIGN_SUCCESS    => xalign_good,<br>
          

          • (without entity or the name of the architecture)
    • If this doesn’t work, may need to link to the resource libraries created before (page 42)
      • modelsimTutorial.pdf
  • make a folder in the project called “testbench”
  • Add the testbench file “acc_acdc_comms_testbench.vhd” to the testbench folder
  • change the compiler settings
    • language syntax use “1076-2009”
    • leave compile to directory as “work”
  • Run the simulation:
    • From the library tab, go to the “work” library and Right click on the testbench architecture and choose “simulate”
    • Run the simulation for “4 us”
    • Check that LVDS_ALIGN_STATE under acc_TRANSCEIVERS is “ALIGN_DONE”