|
| 1 | +.. _scoreboard_tb: |
| 2 | + |
| 3 | +Scoreboard |
| 4 | +================================================================================ |
| 5 | + |
| 6 | +Overview |
| 7 | +------------------------------------------------------------------------------- |
| 8 | + |
| 9 | +The purpose of this testbench is to give engineers a sandbox testbench, where |
| 10 | +they can test the scoreboard's functionalities. |
| 11 | + |
| 12 | +Block design |
| 13 | +------------------------------------------------------------------------------- |
| 14 | + |
| 15 | +The block design is based on the test harness with the addition of two AXI4 |
| 16 | +Stream VIPs from AMD. This testbench does not require the presence of the test |
| 17 | +harness, as it can work without it, but since it was created based on the base |
| 18 | +design, this was inherited. One of the VIPs is configured as master, while the |
| 19 | +other one is configured as slave. The TREADY, TLAST and TKEEP signals are set to |
| 20 | +be enabled for the VIPs. |
| 21 | + |
| 22 | +Block diagram |
| 23 | +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 24 | + |
| 25 | +.. image:: ../axis_sequencers/axis_sequencers_tb.svg |
| 26 | + :width: 800 |
| 27 | + :align: center |
| 28 | + :alt: Scoreboard/Testbench block diagram |
| 29 | + |
| 30 | +Configuration parameters and modes |
| 31 | +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 32 | + |
| 33 | +There are no parameters that can be configured in the testbench configuration |
| 34 | +files. |
| 35 | + |
| 36 | +Build parameters |
| 37 | +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| 38 | + |
| 39 | +There are no build parameters for this testbench. |
| 40 | + |
| 41 | +Configuration files |
| 42 | +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| 43 | + |
| 44 | +As this is a sandbox testbench, engineers are encouraged to change parameters |
| 45 | +and see what happens in the simulation. Since there are no parameters available |
| 46 | +for edit, the coniguration file's purpose is to give the testbench instance a |
| 47 | +name. |
| 48 | + |
| 49 | +Tests |
| 50 | +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| 51 | + |
| 52 | +The following test program file is available: |
| 53 | + |
| 54 | +============ ============================== |
| 55 | +Test program Usage |
| 56 | +============ ============================== |
| 57 | +test_program Creates a basic test stimulus. |
| 58 | +============ ============================== |
| 59 | + |
| 60 | +Available configurations & tests combinations |
| 61 | +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| 62 | + |
| 63 | +The test program is compatible with the configuration. |
| 64 | + |
| 65 | +CPU/Memory interconnects addresses |
| 66 | +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 67 | + |
| 68 | +Irrelevant for this testbench. |
| 69 | + |
| 70 | +Interrupts |
| 71 | +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 72 | + |
| 73 | +Irrelevant for this testbench. |
| 74 | + |
| 75 | +Test stimulus |
| 76 | +------------------------------------------------------------------------------- |
| 77 | + |
| 78 | +The test program is responsible for configuring and running the sequencers, |
| 79 | +while checking the data with a scoreboard. |
| 80 | + |
| 81 | +Environment Bringup |
| 82 | +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 83 | + |
| 84 | +The steps of the environment bringup are: |
| 85 | + |
| 86 | +* Create the environment |
| 87 | +* Start the environment |
| 88 | +* Start the clocks |
| 89 | +* Assert the resets |
| 90 | + |
| 91 | +Scoreboard testing |
| 92 | +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 93 | + |
| 94 | +* Before the resets are asserted, the master and slave sequencers are configured |
| 95 | +* The scoreboard is subscribed to the master and slave sequencers' publisher |
| 96 | +* The scoreboard is started |
| 97 | +* The sequencers are started |
| 98 | +* Scoreboard waits until the verification is complete |
| 99 | + |
| 100 | +.. warning:: |
| 101 | + |
| 102 | + Depending on the packet size and amount, the simulation may end before all of |
| 103 | + the data is verified, which may cause runtime errors! |
| 104 | + |
| 105 | +Building the test bench |
| 106 | +------------------------------------------------------------------------------- |
| 107 | + |
| 108 | +The testbench is built upon ADI's generic HDL reference design framework. |
| 109 | +ADI does not distribute compiled files of these projects so they must be built |
| 110 | +from the sources available :git-hdl:`here </>` and :git-testbenches:`here </>`, |
| 111 | +with the specified hierarchy described :ref:`build_tb set_up_tb_repo`. |
| 112 | +To get the source you must |
| 113 | +`clone <https://git-scm.com/book/en/v2/Git-Basics-Getting-a-Git-Repository>`__ |
| 114 | +the HDL repository, and then build the project as follows: |
| 115 | + |
| 116 | +**Linux/Cygwin/WSL** |
| 117 | + |
| 118 | +*Example 1* |
| 119 | + |
| 120 | +Building and simulating the testbench using only the command line. |
| 121 | + |
| 122 | +.. shell:: |
| 123 | + :showuser: |
| 124 | + |
| 125 | + $cd testbenches/ip/scoreboard |
| 126 | + $make |
| 127 | + |
| 128 | +*Example 2* |
| 129 | + |
| 130 | +Building and simulating the testbench using the Vivado GUI. This command will |
| 131 | +launch Vivado, will run the simulation and display the waveforms. |
| 132 | + |
| 133 | +.. shell:: |
| 134 | + :showuser: |
| 135 | + |
| 136 | + $cd testbenches/ip/scoreboard |
| 137 | + $make MODE=gui |
| 138 | + |
| 139 | +*Example 3* |
| 140 | + |
| 141 | +Build a particular combination of test and configuration, using the Vivado GUI. |
| 142 | +This command will launch Vivado, will run the simulation and display the |
| 143 | +waveforms. |
| 144 | + |
| 145 | +.. shell:: |
| 146 | + :showuser: |
| 147 | + |
| 148 | + $cd testbenches/ip/scoreboard |
| 149 | + $make MODE=gui CFG=cfg1 TST=test_program |
| 150 | + |
| 151 | +The built project can be found in the ``runs`` folder, where each configuration |
| 152 | +specific build has its own folder named after the configuration file's name. |
| 153 | +Example: if the following command was run for a single configuration in the |
| 154 | +clean folder (no runs folder available): |
| 155 | + |
| 156 | +``make CFG=cfg1`` |
| 157 | + |
| 158 | +Then the subfolder under ``runs`` name will be: |
| 159 | + |
| 160 | +``cfg1`` |
| 161 | + |
| 162 | +Resources |
| 163 | +------------------------------------------------------------------------------- |
| 164 | + |
| 165 | +Testbenches related dependencies |
| 166 | +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 167 | + |
| 168 | +.. include:: ../../common/dependency_common.rst |
| 169 | + |
| 170 | +Testbench specific dependencies: |
| 171 | + |
| 172 | +.. list-table:: |
| 173 | + :widths: 30 45 25 |
| 174 | + :header-rows: 1 |
| 175 | + |
| 176 | + * - SV dependency name |
| 177 | + - Source code link |
| 178 | + - Documentation link |
| 179 | + * - M_AXIS_SEQUENCER |
| 180 | + - :git-testbenches:`library/vip/amd/m_axis_sequencer.sv` |
| 181 | + - --- |
| 182 | + * - S_AXIS_SEQUENCER |
| 183 | + - :git-testbenches:`library/vip/amd/s_axis_sequencer.sv` |
| 184 | + - --- |
| 185 | + * - SCOREBOARD |
| 186 | + - :git-testbenches:`library/drivers/common/scoreboard.sv` |
| 187 | + - --- |
| 188 | + |
| 189 | +.. include:: ../../../common/more_information.rst |
| 190 | + |
| 191 | +.. include:: ../../../common/support.rst |
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