Added playback controller and testbench
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parent
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commit
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654
SDVD.xpr
654
SDVD.xpr
@ -1,314 +1,340 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!-- -->
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<!-- Copyright 1986-2022 Xilinx, Inc. All Rights Reserved. -->
|
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<!-- Copyright 2022-2024 Advanced Micro Devices, Inc. All Rights Reserved. -->
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|
||||
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|
||||
<Option Name="SimulatorGccInstallDirActiveHdl" Val=""/>
|
||||
<Option Name="SimulatorVersionXsim" Val="2024.2"/>
|
||||
<Option Name="SimulatorVersionModelSim" Val="2024.1"/>
|
||||
<Option Name="SimulatorVersionQuesta" Val="2024.1"/>
|
||||
<Option Name="SimulatorVersionXcelium" Val="24.03.003"/>
|
||||
<Option Name="SimulatorVersionVCS" Val="V-2023.12-SP1"/>
|
||||
<Option Name="SimulatorVersionRiviera" Val="2024.04"/>
|
||||
<Option Name="SimulatorVersionActiveHdl" Val="15.0"/>
|
||||
<Option Name="SimulatorGccVersionXsim" Val="9.3.0"/>
|
||||
<Option Name="SimulatorGccVersionModelSim" Val="7.4.0"/>
|
||||
<Option Name="SimulatorGccVersionQuesta" Val="7.4.0"/>
|
||||
<Option Name="SimulatorGccVersionXcelium" Val="9.3.0"/>
|
||||
<Option Name="SimulatorGccVersionVCS" Val="9.2.0"/>
|
||||
<Option Name="SimulatorGccVersionRiviera" Val="9.3.0"/>
|
||||
<Option Name="SimulatorGccVersionActiveHdl" Val="9.3.0"/>
|
||||
<Option Name="BoardPart" Val=""/>
|
||||
<Option Name="ActiveSimSet" Val="playback_controller_tb"/>
|
||||
<Option Name="DefaultLib" Val="xil_defaultlib"/>
|
||||
<Option Name="ProjectType" Val="Default"/>
|
||||
<Option Name="IPRepoPath" Val="$PPRDIR/../../../fpga/vivado-library"/>
|
||||
<Option Name="IPOutputRepo" Val="$PCACHEDIR/ip"/>
|
||||
<Option Name="IPDefaultOutputPath" Val="$PGENDIR/sources_1"/>
|
||||
<Option Name="IPCachePermission" Val="read"/>
|
||||
<Option Name="IPCachePermission" Val="write"/>
|
||||
<Option Name="EnableCoreContainer" Val="FALSE"/>
|
||||
<Option Name="EnableResourceEstimation" Val="FALSE"/>
|
||||
<Option Name="SimCompileState" Val="TRUE"/>
|
||||
<Option Name="CreateRefXciForCoreContainers" Val="FALSE"/>
|
||||
<Option Name="IPUserFilesDir" Val="$PIPUSERFILESDIR"/>
|
||||
<Option Name="IPStaticSourceDir" Val="$PIPUSERFILESDIR/ipstatic"/>
|
||||
<Option Name="EnableBDX" Val="FALSE"/>
|
||||
<Option Name="DSABoardId" Val="nexys-a7-100t"/>
|
||||
<Option Name="WTXSimLaunchSim" Val="22"/>
|
||||
<Option Name="WTModelSimLaunchSim" Val="0"/>
|
||||
<Option Name="WTQuestaLaunchSim" Val="0"/>
|
||||
<Option Name="WTIesLaunchSim" Val="0"/>
|
||||
<Option Name="WTVcsLaunchSim" Val="0"/>
|
||||
<Option Name="WTRivieraLaunchSim" Val="0"/>
|
||||
<Option Name="WTActivehdlLaunchSim" Val="0"/>
|
||||
<Option Name="WTXSimExportSim" Val="0"/>
|
||||
<Option Name="WTModelSimExportSim" Val="0"/>
|
||||
<Option Name="WTQuestaExportSim" Val="0"/>
|
||||
<Option Name="WTIesExportSim" Val="0"/>
|
||||
<Option Name="WTVcsExportSim" Val="0"/>
|
||||
<Option Name="WTRivieraExportSim" Val="0"/>
|
||||
<Option Name="WTActivehdlExportSim" Val="0"/>
|
||||
<Option Name="GenerateIPUpgradeLog" Val="TRUE"/>
|
||||
<Option Name="XSimRadix" Val="hex"/>
|
||||
<Option Name="XSimTimeUnit" Val="ns"/>
|
||||
<Option Name="XSimArrayDisplayLimit" Val="1024"/>
|
||||
<Option Name="XSimTraceLimit" Val="65536"/>
|
||||
<Option Name="SimTypes" Val="rtl"/>
|
||||
<Option Name="SimTypes" Val="bfm"/>
|
||||
<Option Name="SimTypes" Val="tlm"/>
|
||||
<Option Name="SimTypes" Val="tlm_dpi"/>
|
||||
<Option Name="MEMEnableMemoryMapGeneration" Val="TRUE"/>
|
||||
<Option Name="DcpsUptoDate" Val="TRUE"/>
|
||||
<Option Name="UseInlineHdlIP" Val="TRUE"/>
|
||||
<Option Name="LocalIPRepoLeafDirName" Val="ip_repo"/>
|
||||
</Configuration>
|
||||
<FileSets Version="1" Minor="32">
|
||||
<FileSet Name="sources_1" Type="DesignSrcs" RelSrcDir="$PSRCDIR/sources_1" RelGenDir="$PGENDIR/sources_1">
|
||||
<Filter Type="Srcs"/>
|
||||
<File Path="$PPRDIR/design/debouncer.sv">
|
||||
<FileInfo>
|
||||
<Attr Name="UsedIn" Val="synthesis"/>
|
||||
<Attr Name="UsedIn" Val="implementation"/>
|
||||
<Attr Name="UsedIn" Val="simulation"/>
|
||||
</FileInfo>
|
||||
</File>
|
||||
<File Path="$PPRDIR/design/segment_display/display_anode_driver.sv">
|
||||
<FileInfo>
|
||||
<Attr Name="UsedIn" Val="synthesis"/>
|
||||
<Attr Name="UsedIn" Val="implementation"/>
|
||||
<Attr Name="UsedIn" Val="simulation"/>
|
||||
</FileInfo>
|
||||
</File>
|
||||
<File Path="$PPRDIR/design/segment_display/display_converter.sv">
|
||||
<FileInfo>
|
||||
<Attr Name="UsedIn" Val="synthesis"/>
|
||||
<Attr Name="UsedIn" Val="implementation"/>
|
||||
<Attr Name="UsedIn" Val="simulation"/>
|
||||
</FileInfo>
|
||||
</File>
|
||||
<File Path="$PPRDIR/design/sdvd_defs.sv">
|
||||
<FileInfo>
|
||||
<Attr Name="UsedIn" Val="synthesis"/>
|
||||
<Attr Name="UsedIn" Val="implementation"/>
|
||||
<Attr Name="UsedIn" Val="simulation"/>
|
||||
</FileInfo>
|
||||
</File>
|
||||
<File Path="$PPRDIR/design/low_freq_clock_gen.sv">
|
||||
<FileInfo>
|
||||
<Attr Name="UsedIn" Val="synthesis"/>
|
||||
<Attr Name="UsedIn" Val="implementation"/>
|
||||
<Attr Name="UsedIn" Val="simulation"/>
|
||||
</FileInfo>
|
||||
</File>
|
||||
<File Path="$PPRDIR/design/playback_controller.sv">
|
||||
<FileInfo>
|
||||
<Attr Name="UsedIn" Val="synthesis"/>
|
||||
<Attr Name="UsedIn" Val="implementation"/>
|
||||
<Attr Name="UsedIn" Val="simulation"/>
|
||||
</FileInfo>
|
||||
</File>
|
||||
<File Path="$PPRDIR/design/segment_display/seconds_display.sv">
|
||||
<FileInfo>
|
||||
<Attr Name="UsedIn" Val="synthesis"/>
|
||||
<Attr Name="UsedIn" Val="implementation"/>
|
||||
<Attr Name="UsedIn" Val="simulation"/>
|
||||
</FileInfo>
|
||||
</File>
|
||||
<File Path="$PPRDIR/design/nexys_a7_top.sv">
|
||||
<FileInfo>
|
||||
<Attr Name="UsedIn" Val="synthesis"/>
|
||||
<Attr Name="UsedIn" Val="implementation"/>
|
||||
<Attr Name="UsedIn" Val="simulation"/>
|
||||
</FileInfo>
|
||||
</File>
|
||||
<Config>
|
||||
<Option Name="DesignMode" Val="RTL"/>
|
||||
<Option Name="TopModule" Val="nexys_a7_top"/>
|
||||
<Option Name="TopAutoSet" Val="TRUE"/>
|
||||
</Config>
|
||||
</FileSet>
|
||||
<FileSet Name="constrs_1" Type="Constrs" RelSrcDir="$PSRCDIR/constrs_1" RelGenDir="$PGENDIR/constrs_1">
|
||||
<Filter Type="Constrs"/>
|
||||
<File Path="$PPRDIR/Nexys-A7-100T-Master.xdc">
|
||||
<FileInfo>
|
||||
<Attr Name="UsedIn" Val="synthesis"/>
|
||||
<Attr Name="UsedIn" Val="implementation"/>
|
||||
</FileInfo>
|
||||
</File>
|
||||
<Config>
|
||||
<Option Name="ConstrsType" Val="XDC"/>
|
||||
</Config>
|
||||
</FileSet>
|
||||
<FileSet Name="sim_1" Type="SimulationSrcs" RelSrcDir="$PSRCDIR/sim_1" RelGenDir="$PGENDIR/sim_1">
|
||||
<Filter Type="Srcs"/>
|
||||
<File Path="$PPRDIR/verification/debouncer_tb.sv">
|
||||
<FileInfo>
|
||||
<Attr Name="UsedIn" Val="synthesis"/>
|
||||
<Attr Name="UsedIn" Val="implementation"/>
|
||||
<Attr Name="UsedIn" Val="simulation"/>
|
||||
</FileInfo>
|
||||
</File>
|
||||
<Config>
|
||||
<Option Name="DesignMode" Val="RTL"/>
|
||||
<Option Name="TopModule" Val="debouncer_tb"/>
|
||||
<Option Name="TopLib" Val="xil_defaultlib"/>
|
||||
<Option Name="TransportPathDelay" Val="0"/>
|
||||
<Option Name="TransportIntDelay" Val="0"/>
|
||||
<Option Name="SelectedSimModel" Val="rtl"/>
|
||||
<Option Name="PamDesignTestbench" Val=""/>
|
||||
<Option Name="PamDutBypassFile" Val="xil_dut_bypass"/>
|
||||
<Option Name="PamSignalDriverFile" Val="xil_bypass_driver"/>
|
||||
<Option Name="PamPseudoTop" Val="pseudo_tb"/>
|
||||
<Option Name="SrcSet" Val="sources_1"/>
|
||||
<Option Name="CosimPdi" Val=""/>
|
||||
<Option Name="CosimPlatform" Val=""/>
|
||||
<Option Name="CosimElf" Val=""/>
|
||||
</Config>
|
||||
</FileSet>
|
||||
<FileSet Name="utils_1" Type="Utils" RelSrcDir="$PSRCDIR/utils_1" RelGenDir="$PGENDIR/utils_1">
|
||||
<Filter Type="Utils"/>
|
||||
<Config>
|
||||
<Option Name="TopAutoSet" Val="TRUE"/>
|
||||
</Config>
|
||||
</FileSet>
|
||||
<FileSet Name="seconds_display_tb" Type="SimulationSrcs" RelSrcDir="$PSRCDIR/seconds_display_tb" RelGenDir="$PGENDIR/seconds_display_tb">
|
||||
<Filter Type="Srcs"/>
|
||||
<File Path="$PPRDIR/verification/segment_display/seconds_display_tb.sv">
|
||||
<FileInfo>
|
||||
<Attr Name="UsedIn" Val="synthesis"/>
|
||||
<Attr Name="UsedIn" Val="implementation"/>
|
||||
<Attr Name="UsedIn" Val="simulation"/>
|
||||
</FileInfo>
|
||||
</File>
|
||||
<Config>
|
||||
<Option Name="DesignMode" Val="RTL"/>
|
||||
<Option Name="TopModule" Val="seconds_display_tb"/>
|
||||
<Option Name="TopLib" Val="xil_defaultlib"/>
|
||||
<Option Name="TransportPathDelay" Val="0"/>
|
||||
<Option Name="TransportIntDelay" Val="0"/>
|
||||
<Option Name="SelectedSimModel" Val="rtl"/>
|
||||
<Option Name="PamDesignTestbench" Val=""/>
|
||||
<Option Name="PamDutBypassFile" Val="xil_dut_bypass"/>
|
||||
<Option Name="PamSignalDriverFile" Val="xil_bypass_driver"/>
|
||||
<Option Name="PamPseudoTop" Val="pseudo_tb"/>
|
||||
<Option Name="SrcSet" Val="sources_1"/>
|
||||
<Option Name="CosimPdi" Val=""/>
|
||||
<Option Name="CosimPlatform" Val=""/>
|
||||
<Option Name="CosimElf" Val=""/>
|
||||
</Config>
|
||||
</FileSet>
|
||||
<FileSet Name="playback_controller_tb" Type="SimulationSrcs" RelSrcDir="$PSRCDIR/playback_controller_tb" RelGenDir="$PGENDIR/playback_controller_tb">
|
||||
<File Path="$PPRDIR/design/sdvd_defs.sv">
|
||||
<FileInfo>
|
||||
<Attr Name="UsedIn" Val="synthesis"/>
|
||||
<Attr Name="UsedIn" Val="implementation"/>
|
||||
<Attr Name="UsedIn" Val="simulation"/>
|
||||
</FileInfo>
|
||||
</File>
|
||||
<File Path="$PPRDIR/verification/playback_controller_tb.sv">
|
||||
<FileInfo>
|
||||
<Attr Name="UsedIn" Val="synthesis"/>
|
||||
<Attr Name="UsedIn" Val="implementation"/>
|
||||
<Attr Name="UsedIn" Val="simulation"/>
|
||||
</FileInfo>
|
||||
</File>
|
||||
<Config>
|
||||
<Option Name="DesignMode" Val="RTL"/>
|
||||
<Option Name="TopModule" Val="playback_controller_tb"/>
|
||||
<Option Name="TopLib" Val="xil_defaultlib"/>
|
||||
<Option Name="VerilogDir" Val="$PPRDIR/design"/>
|
||||
<Option Name="TransportPathDelay" Val="0"/>
|
||||
<Option Name="TransportIntDelay" Val="0"/>
|
||||
<Option Name="SelectedSimModel" Val="rtl"/>
|
||||
<Option Name="PamDesignTestbench" Val=""/>
|
||||
<Option Name="PamDutBypassFile" Val="xil_dut_bypass"/>
|
||||
<Option Name="PamSignalDriverFile" Val="xil_bypass_driver"/>
|
||||
<Option Name="PamPseudoTop" Val="pseudo_tb"/>
|
||||
<Option Name="SrcSet" Val="sources_1"/>
|
||||
<Option Name="CosimPdi" Val=""/>
|
||||
<Option Name="CosimPlatform" Val=""/>
|
||||
<Option Name="CosimElf" Val=""/>
|
||||
</Config>
|
||||
</FileSet>
|
||||
</FileSets>
|
||||
<Simulators>
|
||||
<Simulator Name="XSim">
|
||||
<Option Name="Description" Val="Vivado Simulator"/>
|
||||
<Option Name="CompiledLib" Val="0"/>
|
||||
</Simulator>
|
||||
<Simulator Name="ModelSim">
|
||||
<Option Name="Description" Val="ModelSim Simulator"/>
|
||||
</Simulator>
|
||||
<Simulator Name="Questa">
|
||||
<Option Name="Description" Val="Questa Advanced Simulator"/>
|
||||
</Simulator>
|
||||
<Simulator Name="Riviera">
|
||||
<Option Name="Description" Val="Riviera-PRO Simulator"/>
|
||||
</Simulator>
|
||||
<Simulator Name="ActiveHDL">
|
||||
<Option Name="Description" Val="Active-HDL Simulator"/>
|
||||
</Simulator>
|
||||
</Simulators>
|
||||
<Runs Version="1" Minor="22">
|
||||
<Run Id="synth_1" Type="Ft3:Synth" SrcSet="sources_1" Part="xc7a100tcsg324-1" ConstrsSet="constrs_1" Description="Vivado Synthesis Defaults" AutoIncrementalCheckpoint="true" WriteIncrSynthDcp="false" State="current" IncludeInArchive="true" IsChild="false" AutoIncrementalDir="$PSRCDIR/utils_1/imports/synth_1" AutoRQSDir="$PSRCDIR/utils_1/imports/synth_1" ParallelReportGen="true">
|
||||
<Strategy Version="1" Minor="2">
|
||||
<StratHandle Name="Vivado Synthesis Defaults" Flow="Vivado Synthesis 2024">
|
||||
<Desc>Vivado Synthesis Defaults</Desc>
|
||||
</StratHandle>
|
||||
<Step Id="synth_design"/>
|
||||
</Strategy>
|
||||
<ReportStrategy Name="Vivado Synthesis Default Reports" Flow="Vivado Synthesis 2024"/>
|
||||
<Report Name="ROUTE_DESIGN.REPORT_METHODOLOGY" Enabled="1"/>
|
||||
<RQSFiles/>
|
||||
</Run>
|
||||
<Run Id="impl_1" Type="Ft2:EntireDesign" Part="xc7a100tcsg324-1" ConstrsSet="constrs_1" Description="Default settings for Implementation." AutoIncrementalCheckpoint="false" WriteIncrSynthDcp="false" State="current" SynthRun="synth_1" IncludeInArchive="true" IsChild="false" GenFullBitstream="true" AutoIncrementalDir="$PSRCDIR/utils_1/imports/impl_1" LaunchOptions="-jobs 2 " AutoRQSDir="$PSRCDIR/utils_1/imports/impl_1" ParallelReportGen="true">
|
||||
<Strategy Version="1" Minor="2">
|
||||
<StratHandle Name="Vivado Implementation Defaults" Flow="Vivado Implementation 2024">
|
||||
<Desc>Default settings for Implementation.</Desc>
|
||||
</StratHandle>
|
||||
<Step Id="init_design"/>
|
||||
<Step Id="opt_design"/>
|
||||
<Step Id="power_opt_design"/>
|
||||
<Step Id="place_design"/>
|
||||
<Step Id="post_place_power_opt_design"/>
|
||||
<Step Id="phys_opt_design"/>
|
||||
<Step Id="route_design"/>
|
||||
<Step Id="post_route_phys_opt_design"/>
|
||||
<Step Id="write_bitstream"/>
|
||||
</Strategy>
|
||||
<ReportStrategy Name="Vivado Implementation Default Reports" Flow="Vivado Implementation 2024"/>
|
||||
<Report Name="ROUTE_DESIGN.REPORT_METHODOLOGY" Enabled="1"/>
|
||||
<RQSFiles/>
|
||||
</Run>
|
||||
</Runs>
|
||||
<Board/>
|
||||
<DashboardSummary Version="1" Minor="0">
|
||||
<Dashboards>
|
||||
<Dashboard Name="default_dashboard">
|
||||
<Gadgets>
|
||||
<Gadget Name="drc_1" Type="drc" Version="1" Row="2" Column="0">
|
||||
<GadgetParam Name="REPORTS" Type="string_list" Value="impl_1#impl_1_route_report_drc_0 "/>
|
||||
</Gadget>
|
||||
<Gadget Name="methodology_1" Type="methodology" Version="1" Row="2" Column="1">
|
||||
<GadgetParam Name="REPORTS" Type="string_list" Value="impl_1#impl_1_route_report_methodology_0 "/>
|
||||
</Gadget>
|
||||
<Gadget Name="power_1" Type="power" Version="1" Row="1" Column="0">
|
||||
<GadgetParam Name="REPORTS" Type="string_list" Value="impl_1#impl_1_route_report_power_0 "/>
|
||||
</Gadget>
|
||||
<Gadget Name="timing_1" Type="timing" Version="1" Row="0" Column="1">
|
||||
<GadgetParam Name="REPORTS" Type="string_list" Value="impl_1#impl_1_route_report_timing_summary_0 "/>
|
||||
</Gadget>
|
||||
<Gadget Name="utilization_1" Type="utilization" Version="1" Row="0" Column="0">
|
||||
<GadgetParam Name="REPORTS" Type="string_list" Value="synth_1#synth_1_synth_report_utilization_0 "/>
|
||||
<GadgetParam Name="RUN.STEP" Type="string" Value="synth_design"/>
|
||||
<GadgetParam Name="RUN.TYPE" Type="string" Value="synthesis"/>
|
||||
</Gadget>
|
||||
<Gadget Name="utilization_2" Type="utilization" Version="1" Row="1" Column="1">
|
||||
<GadgetParam Name="REPORTS" Type="string_list" Value="impl_1#impl_1_place_report_utilization_0 "/>
|
||||
</Gadget>
|
||||
</Gadgets>
|
||||
</Dashboard>
|
||||
<CurrentDashboard>default_dashboard</CurrentDashboard>
|
||||
</Dashboards>
|
||||
</DashboardSummary>
|
||||
</Project>
|
||||
|
||||
@ -14,10 +14,79 @@ module playback_controller(
|
||||
output SPEED speed
|
||||
);
|
||||
|
||||
typedef enum logic [2:0] {
|
||||
PAUSE, PLAY, FF2, FF4, FF8
|
||||
} state_t;
|
||||
|
||||
state_t current, next;
|
||||
|
||||
wire play_pulse,ff_pulse;
|
||||
|
||||
// NOTE: These might need to be hooked to an even lower clock? Not sure
|
||||
debouncer playDebouncer (clk,reset,play,play_pulse);
|
||||
debouncer ffDebouncer (clk,reset,ff,ff_pulse);
|
||||
|
||||
//next state logic
|
||||
always_comb
|
||||
begin
|
||||
unique case (current)
|
||||
PAUSE:
|
||||
begin
|
||||
if (play_pulse) next = PLAY;
|
||||
else if (ff_pulse) next = FF2;
|
||||
else next = PAUSE;
|
||||
end
|
||||
PLAY:
|
||||
begin
|
||||
if (play_pulse) next = PAUSE;
|
||||
else if (ff_pulse) next = FF2;
|
||||
else next = PLAY;
|
||||
end
|
||||
FF2:
|
||||
begin
|
||||
if (play_pulse) next = PAUSE;
|
||||
else if (ff_pulse) next = FF4;
|
||||
else next = FF2;
|
||||
end
|
||||
FF4:
|
||||
begin
|
||||
if (play_pulse) next = PAUSE;
|
||||
else if (ff_pulse) next = FF8;
|
||||
else next = FF4;
|
||||
end
|
||||
FF8:
|
||||
begin
|
||||
if (play_pulse) next = PAUSE;
|
||||
else if (ff_pulse) next = FF8;
|
||||
else next = FF8;
|
||||
end
|
||||
default:
|
||||
next = PAUSE;
|
||||
endcase
|
||||
end
|
||||
|
||||
//output logic
|
||||
always_comb
|
||||
begin
|
||||
unique case (current)
|
||||
PAUSE: speed = 0;
|
||||
PLAY: speed = 1;
|
||||
FF2: speed = 2;
|
||||
FF4: speed = 4;
|
||||
FF8: speed = 8;
|
||||
default:speed = 0;
|
||||
endcase
|
||||
end
|
||||
|
||||
//sequential logic
|
||||
always_ff @(posedge clk)
|
||||
begin
|
||||
if (reset)
|
||||
current <= PAUSE;
|
||||
else
|
||||
current <= next;
|
||||
end
|
||||
endmodule
|
||||
|
||||
|
||||
|
||||
|
||||
@ -56,8 +56,4 @@ initial begin
|
||||
$finish;
|
||||
|
||||
end
|
||||
|
||||
|
||||
|
||||
|
||||
endmodule
|
||||
|
||||
106
verification/playback_controller_tb.sv
Normal file
106
verification/playback_controller_tb.sv
Normal file
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/****
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* playback_controller_tb.sv - a testbench for the playback_controller.sv
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* module.
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*
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* @author: Dilanthi Prentice
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* @date: [unsure of due date]
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*
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* */
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`include "sdvd_defs.sv"
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import sdvd_defs::SPEED;
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module playback_controller_tb;
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logic clk, reset;
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logic play, ff;
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SPEED speed;
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int errors;
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//instatiate the dut
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playback_controller dut(clk, reset, play, ff, speed);
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//clock generation
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initial clk = 0;
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always #5 clk = ~clk;
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//play button press
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task press_play();
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play = 1;
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@(posedge clk);
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play = 0;
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@(posedge clk);
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endtask
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//ff button press
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task press_ff();
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ff = 1;
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@(posedge clk);
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ff = 0;
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@(posedge clk);
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endtask
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initial
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begin
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@(posedge clk);
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play = 0;
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ff = 0;
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reset = 1;
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@(posedge clk);
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reset = 0;
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@(posedge clk);
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assert (speed === 0) else
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begin
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$error("Speed not zero after reset");
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errors++;
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end
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@(posedge clk);
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press_play();
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assert (speed === 1) else
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begin
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$error("Play not working");
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errors++;
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end
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press_play();
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assert (speed === 0) else
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begin
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$error("Pause not working");
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errors++;
|
||||
end
|
||||
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press_ff();
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assert (speed === 2) else
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begin
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$error("Not in FF2 after ff btn pressed once");
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||||
errors++;
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||||
end
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||||
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||||
press_ff();
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assert (speed === 4) else
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||||
begin
|
||||
$error("Not in FF4 after ff btn pressed twice");
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||||
errors++;
|
||||
end
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||||
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||||
press_ff();
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assert (speed === 8) else
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||||
begin
|
||||
$error("Not in FF8 after ff btn pressed thrice");
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||||
errors++;
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||||
end
|
||||
|
||||
press_play();
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assert (speed === 0) else
|
||||
begin
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||||
$error("Unsuccessful return to pause after play btn pressed from a FF state");
|
||||
errors++;
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||||
end
|
||||
|
||||
if (errors === 0)
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||||
$display("No errors detected in playback_controller");
|
||||
|
||||
$finish;
|
||||
end
|
||||
endmodule
|
||||
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