//$$HEADER
/*************************************************************************/
/* */
/* H E A D E R I N F O R M A T I O N */
/* */
/*************************************************************************/
// Module: ETC_TEST
// Design: ETC
// Written by: Sven-Ake Andersson
// Description: Testcase file for functional testing
//$$UPDATE
/*************************************************************************/
/* */
/* U P D A T E I N F O R M A T I O N */
/* */
/*************************************************************************/
// Date Version Description
//------------------------------------------------------------------------
// 060322 1.0 First version
// 060719 1.1 New method for generating the testprogram
// 060823 1.11 Added expected data
// 060828 1.12 Modified for OPB interface
//$$CURRENT VERSION
/*************************************************************************/
/* */
/* C U R R E N T V E R S I O N */
/* */
/*************************************************************************/
initial
begin
TestCaseIdentity = 10'ha; // Identifies the testcase
TestCaseVersion = 12'h112; // Identifies the testcase version
end
//$$TEST DESCRIPTION
/*************************************************************************/
/* */
/* T E S T D E S C R I P T I O N */
/* */
/*************************************************************************/
// JTAG instruction tested : BYPASS
// Scan data through the bypass register and observe the TDO out data
// which will be one TCK clock cycle delayed.
//$$PARAMETERS
/*************************************************************************/
/* */
/* P A R A M E T E R S */
/* */
/*************************************************************************/
parameter MAXIMUM_NUMBER_OF_TCK_CYCLES = 24'd1000;
/*************************************************************************/
/* */
/* D E F I N E T E S T P R O G R A M */
/* */
/*************************************************************************/
task CompileTestProgram;
begin
SetLoadModuleIdentity(DesignIdentity,TestCaseIdentity,TestCaseVersion);
SetTdoRecordingMode(SKIP_TDO_SHIFTIR);
TestResetKeepingTrstzLow (10);
LoadInstruction(INSTRUCTION_LENGTH,BYPASS);
ReadWriteDataRegister(BypassRegLen+20,{{BypassRegLen{1'b0}},20'b1110011101});
SetExpectedData(BypassRegLen+20,{20'b1110011101,{BypassRegLen{1'bx}}});
EndOfTestProgram;
end
endtask
/*************************************************************************/
/* */
/* S T A R T T H E S I M U L A T I O N */
/* */
/*************************************************************************/
initial
begin
/*************************************************************************/
/* D I S P L A Y H E A D E R */
/*************************************************************************/
HeaderDisplay(AllFiles);
/*************************************************************************/
/* C O M P I L E T E S T P R O G R A M */
/*************************************************************************/
CompileTestProgram;
CompilationCheck;
if (CompilationError) begin
$fdisplay(AllFiles,"Errors found during compilation of test program");
$fdisplay(AllFiles,"Simulation stopped ");
$finish(2);
end
/*************************************************************************/
/* S A V E L O A D M O D U L E */
/*************************************************************************/
SaveLoadModule;
/*************************************************************************/
/* D I S P L A Y T E S T P R O G R A M */
/*************************************************************************/
DisplayTestProgramRam(TestProgramSize);
/*************************************************************************/
/* S E T I N P U T C O N D I T I O N S */
/*************************************************************************/
SetAllInpinsLow; // Define all other inputs
CE1 = 1; // Default value
SetAllInpinsFixed; // Define all fixed inputs
SetAllDiffInputsLow; // Define all differential inputs
ForceAllIopinsTristated; // Force all iopins from outside with "z"
/*************************************************************************/
/* R E S E T E T C */
/*************************************************************************/
ResetSystem(10,5);
/*************************************************************************/
/* L O A D T E S T P R O G R A M */
/*************************************************************************/
LoadTestProgram(TestProgramSize);
/*************************************************************************/
/* W R I T E C O N T R O L R E G I S T E R */
/*************************************************************************/
WriteTransfer(ControlRegister,{ENABLE_INTERRUPT,DISABLE_LOOP_MODE,
SKIP_TDO_SHIFTIR,DISABLE_SINGLE_STEP,
ENABLE_TCK,CLOCK_RATE_DIV_BY_8,
ExternalTestDBCexcl});
TestClockCycles(10);
/*************************************************************************/
/* S T A R T T H E T E S T */
/*************************************************************************/
WriteTransfer(ExecuteRegister,START_ETC);
/*************************************************************************/
/* W A I T F O R I N T E R R U P T ( E N D O F T E S T ) */
/*************************************************************************/
WaitForInterrupt(MAXIMUM_NUMBER_OF_TCK_CYCLES);
TestClockCycles(20);
/*************************************************************************/
/* S T O P T H E T E S T */
/*************************************************************************/
WriteTransfer(ExecuteRegister,STOP_ETC);
TestClockCycles(10);
/*************************************************************************/
/* D I S A B L E T C K */
/*************************************************************************/
WriteTransfer(ControlRegister,{DISABLE_TCK,CLOCK_RATE_DIV_BY_8,
ExternalTestDBCexcl});
SystemClockCycles(100);
/*************************************************************************/
/* F I N D N U M B E R O F T D O B I T S S T O R E D */
/*************************************************************************/
ReadStatusRegisterBits(BusyBit,PauseBit,FinishBit,LoadedTask,PauseShiftDr,
RecAddress,Reserved,TdoBitCount);
/*************************************************************************/
/* T D O D A T A C O M P A R I S O N */
/*************************************************************************/
TdoDataComparison(ExpectedDataSize);
/*************************************************************************/
/* D I S P L A Y T E S T R E S U L T */
/*************************************************************************/
ResultDisplay(AllFiles);
/*************************************************************************/
/* F I N I S H T H E S I M U L A T I O N */
/*************************************************************************/
$finish(2);
end
endmodule
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Posted at 10:40 am by
svenand
