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A project log for sdramThingZero - 133MS/s 32-bit Logic Analyzer

Add an old SDRAM DIMM to your SBC for a 133MS/s 32-bit Logic Analyzer, add ADCs for a Scope...

eric-hertzEric Hertz 08/27/2016 at 15:510 Comments

A little fun:

Directory-Listing:

Highlight: version 14-17/18, which is the same version, just forgot an argument during backup... Yeah, that'd be a single filename:

14-FRloopCount__17_retained_RemovedDelaysFromReadACD_Runs32colOnMtec...alsoWithCSregistered...AndKingstonRegisteredCS...NotMicronWTF...didntFreeRunBeforeEither_AndNoneOfTheOthersStill...ButNowPreviouslyUndetectableDIMMisDetected_NotFreeRunning__18_butApparentlyNotDueToRegisteredCS_WhatThen...sameVerAsBefore_forgotTo_at=_...allNonFreeRunnersAre16chippers_NotEnoughDQpowerMaybe...weGotAnother_ReplacedCSDQ1KohmWith390...FAILS_micron_OKI_SEC__Go_HyundaiKingstonMtec.zip


1-mereContemplations
1-mereContemplations 0_upToEsotFailsInstructionsAtHaD.zip
1-mereContemplations 1_copiedTo_2-avrDirectForCKEtesting_pinoutFromST4-15.zip
2-avrDirectForCKEtesting_pinoutFromST4-15
2-avrDirectForCKEtesting_pinoutFromST4-15 0_fileReorganization.zip
2-avrDirectForCKEtesting_pinoutFromST4-15 10_readADDRL_firstGo_NuttinRitten.zip
2-avrDirectForCKEtesting_pinoutFromST4-15 11_writeImplemented_readBackAsWell_untested...OMG-almostLooksLikeItsWorkin.zip
2-avrDirectForCKEtesting_pinoutFromST4-15 12_fwdReverse_VerifiedDefinitelyStoring.zip
2-avrDirectForCKEtesting_pinoutFromST4-15 13_writingInReverseOrder_VerifyingNoOverwrites_SeemsGood.zip
2-avrDirectForCKEtesting_pinoutFromST4-15 14_copiedTo_3-cleanup.zip
2-avrDirectForCKEtesting_pinoutFromST4-15 1_pinout+minimalMain_notCompiling.zip
2-avrDirectForCKEtesting_pinoutFromST4-15 2_FirstBuild_FilesFromOneAxisHolder36+st4.0-14.zip
2-avrDirectForCKEtesting_pinoutFromST4-15 3_HeartbeatOK.zip
2-avrDirectForCKEtesting_pinoutFromST4-15 4_HeartbeatGo.zip
2-avrDirectForCKEtesting_pinoutFromST4-15 5_MuchTowardInit_NYI__gonnaRemapBAandA.zip
2-avrDirectForCKEtesting_pinoutFromST4-15 6_initShouldBeOK_DunBuild.zip
2-avrDirectForCKEtesting_pinoutFromST4-15 7_initShouldBeOK_DunBuild.zip
2-avrDirectForCKEtesting_pinoutFromST4-15 8_OK_Builds_ButNuttinToTestWith.zip
2-avrDirectForCKEtesting_pinoutFromST4-15 9_sendStringBootOK.zip
3-cleanup
3-cleanup 0_sdram_general.c.zip
3-cleanup 1_AdditionOf_devNum_ForMultipleChip-Selects.zip
3-cleanup 2_moreCleanup.zip
3-cleanup 3_moreStill.zip
3-cleanup 4_copiedTo_4-topologyDetect.zip
3-cleanup 5_NEW_BRANCH_Per4-2.zip
3-cleanup 6_col=col+1_OK.zip
3-cleanup 7_+100=oddities.zip
4-topologyDetect
4-topologyDetect 0_WriteTiming+COL_OFFSETwas1now2_oddlyEh_ReadingBackTwoHigherWasOne.zip
4-topologyDetect 1_READ_timing+SlightColFix_StillOneOff.zip
4-topologyDetect 2_writing0sEh_Weird.zip
4-topologyDetect 3_copiedTo_5-unexpectedZeros.zip
5-unexpectedZeros
5-unexpectedZeros 0_OnlyPrintNonExpecteds_seemsRepeatableISH.zip
5-unexpectedZeros 1_onlyReportFails_fixedWithClockShield.zip
5-unexpectedZeros 2_reducingError...columnOffsetError.zip
5-unexpectedZeros 3_nopsRemoved_stillGood_stillUnexpectedOffset_butNoReadbackErrors.zip
5-unexpectedZeros 4_FirstGoAutoSizing_nogo.zip
5-unexpectedZeros 5_something.zip
5-unexpectedZeros 6_something.zip
5-unexpectedZeros 7_more.zip
5-unexpectedZeros 8_copiedTo_6-moreTopologyDetermining.zip
6-moreTopologyDetermining
6-moreTopologyDetermining 0_More.zip
6-moreTopologyDetermining 1_RowTestingToo_SeemsOK.zip
6-moreTopologyDetermining 2_rowAintQuiteRight.zip
6-moreTopologyDetermining 3_rowTestRevision_NotComplete.zip
6-moreTopologyDetermining 4_copiedTo_7-topologyReversed.zip
7-topologyReversed
7-topologyReversed 0_firstGoNogo.zip
7-topologyReversed 1_still.zip
7-topologyReversed 2_closer.zip
7-topologyReversed 3_GO.zip
7-topologyReversed 4_copiedTo_8-fastTestingAgain.zip
8-fastTestingAgain
8-fastTestingAgain 0_OnlyShowErrors.zip
8-fastTestingAgain 1_dataShiftTesting.zip
8-fastTestingAgain 2_AutoDetectColShift_NYF.zip
8-fastTestingAgain 3_copiedTo_9-autoDetectColShift.zip
9-autoDetectColShift
9-autoDetectColShift 0_dunSeeItButVerifiesError.zip
9-autoDetectColShift 1_WorksWithKingston_NotWithMicron.zip
9-autoDetectColShift 2_ReplaceERROR_with_colShift+GO.zip
9-autoDetectColShift 3_cleanup.zip
9-autoDetectColShift 4_moreCleanup.zip
9-autoDetectColShift 5_workingIshWithMicron_NoChangesEh.zip
9-autoDetectColShift 6_AhHah_colPrintedU8.zip
9-autoDetectColShift 7_minorCleanup.zip
9-autoDetectColShift 8_copiedTo_10-CSstretching.zip

10-CSstretching
10-CSstretching 0_firstGo_Read_GO.zip
10-CSstretching 10_copiedTo_11-oneShots.zip
10-CSstretching 1_writeToo.zip
10-CSstretching 2_WHOOPS_But_NOW_OK.zip
10-CSstretching 3_FUNCTIONS_BUT_WRONG__strobeCS_BeforeCkDisable_inSuffixTest_Hmmm.zip
10-CSstretching 4_MISTAKE_VERIFIED__ColOffsetNow.zip
10-CSstretching 5_nowWithTimingDiagramOfMistake.zip
10-CSstretching 6_ShouldaBeenFixed_ButNowColOffsetOne_soRetryingNoCSSufixes_NowZeroOffset.zip
10-CSstretching 7_NotGettingExpecteds_WorkingWithW_CS_onlySoFar_oddColShifts.zip
10-CSstretching 8_noPre_noSuf_colShift=0...WRITE_COL_OFF=1.zip
10-CSstretching 9_WPre_noSuf_colShift=0.zip
11-oneShots
11-oneShots 0_CSoneShotInstalled_ScopesOK_NoColOffsetDetected_ButCSisStrobedOneClockWidthAnyhow.zip
11-oneShots 10_generateNewByte_somethingFunky.zip
11-oneShots 11_stackOverflow.zip
11-oneShots 12_copiedTo_12-CS-OS.zip
11-oneShots 1_DRAG_OUT_CS_forSimulatingAsyncHostTestingCSoneShotCircuit.zip
11-oneShots 2_CKEoneShot_NoGo.zip
11-oneShots 3_DO_PRINT_UNEXPECTED__soWeCanScopeWhenErroring...PoorClockInto7474_NowSeemsToWorkInBypass_SameColShiftAsPrior.zip
11-oneShots 4_SupposedlyOneShotting_NoDiffInFunctionality.zip
11-oneShots 5_DRAG_OUT_CKE__LooksGood.zip
11-oneShots 6_insertingNOPs_Detected64MB_PreviouslyDetectedProper32MB.zip
11-oneShots

7_OneShotsWithSeperateClock=Flakey__LookingIntoRevisingReadWrite_ExtraSpaceBetweenChanges_SoFarOnlyDQMbeforeActivateRow...andSomeOtherExperimentsHoursAgo_BeforeElectricalTests.zip
11-oneShots 8_errCount.zip
11-oneShots 9_errTypes.zip
12-CS-OS
12-CS-OS 0_RUNS_CS_ONESHOT_OVERRIDE__TODO_RedrawTimingDiagrams.zip
12-CS-OS 1_newByteSchemeForGreatern256cols.zip
12-CS-OS 2_copiedTo_13-freeRunnin.zip
13-freeRunnin
13-freeRunnin 0_writeACD_actuallyWritesAllBytes.zip
13-freeRunnin 10_LooksGood_ForgotOneClockDelayOnCSOSoutput...twoBanksOnly.zip
13-freeRunnin 11_SHORT_BURST_stillNotFreeRunningFull.zip
13-freeRunnin 12_TwoBanksLookOKish.zip
13-freeRunnin 13_TwoBanksLookOKish.zip
13-freeRunnin 14_fourBanksFreeRunninMaybe_WasHardware_ForgottenLatchDelays.zip
13-freeRunnin 15_defSeemsToBeWorkingAcrossFourBanks_Read-Only_NoPA.zip
13-freeRunnin 16_SHORT_BURST_nowOnlyHandles128Cols_DEFINITELYperformingRead-BurstOperation.zip
13-freeRunnin 17_copiedTo_14-FRloopCount.zip
13-freeRunnin 1_read+writeACD_replacing_read+writeAddrL.zip
13-freeRunnin 2_readACD+count_+_NULLpointerTest_GO.zip
13-freeRunnin 3_writeACD_withCount.zip
13-freeRunnin 4_fillColsUsesBurstWrite_Good_butUnnoticeableComparedToSerialPrintout.zip
13-freeRunnin 5_loadFreeRunnerLoop_SoFarOnlyWipesEverythingToInhibits_23sec.zip
13-freeRunnin 6_FreeRunningLoopShouldBeComplete.zip
13-freeRunnin

7_firstGoStartFreeRunning_WAIT_NoWayToDisableChipSelectOutputFromOneShot_OverridingCSDQ_ButWeAreGettingSomething_RepeatedPage0Maybe.zip
13-freeRunnin 8_ResistorToOverride_nowOverrideIsAnInput_ShouldRun_Stops.zip
13-freeRunnin 9_VariousExperiments_stillNotRunnin.zip
14-FRloopCount
14-FRloopCount 0_ROWBANK_IN_DQ_definitelyRunningFourBanks.zip
14-FRloopCount 10_DifferentDIMM_allegedlyFRingTheWholeThing_ButAddrScopingSuggestsOtherwise.zip
14-FRloopCount 11_PlausiblyPrechargingTooSoonForStartFree...32RowsSeemsGood.zip
14-FRloopCount 12_PrechargeActivateNEXTbank_WhyWeSeeBlipOnAddrBit6with32Rows...Ah_stopAt_ROWS-1_.zip
14-FRloopCount 13_startFR_moveClockEnableToEndSoAsNotToMissEarlyPrecharge_etc.zip
14-FRloopCount 14_onlyChangeFR_ROWS=numRows-1__LASTVER_worked32RowsWithKingston.zip
14-FRloopCount 15_32colAgain_onlyRunsOnTwoDIMMs.zip
14-FRloopCount 16_RetainCmdForRegisteredCS_NYF_textOverflow.zip
14-FRloopCount

17_retained_RemovedDelaysFromReadACD_Runs32colOnMtec...alsoWithCSregistered...AndKingstonRegisteredCS...NotMicronWTF...didntFreeRunBeforeEither_AndNoneOfTheOthersStill...ButNowPreviouslyUndetectableDIMMisDetected_NotFreeRunning.zip
14-FRloopCount

18_butApparentlyNotDueToRegisteredCS_WhatThen...sameVerAsBefore_forgotTo_-at=_...allNonFreeRunnersAre16chippers_NotEnoughDQ-powerMaybe.zip
14-FRloopCount 1_TryingFree-RunningPARagain_stillNogo.zip
14-FRloopCount 2_AttemptingFullFreeRunning_Nogo_HadToReduceCodesize_NowFailsToTesting.zip
14-FRloopCount 3_writeACD_removalOfSomeUnnecessaryDelays.zip
14-FRloopCount 4_SHORT_BURST_testingAgain_definitelyReadingAllPreviouslyActivatedRows.zip
14-FRloopCount 5_RUNNING_5_ROWS__addedActivateBackToZero.zip
14-FRloopCount 6_Attempted1205Rows_Runs4-5secThenStops...randomly.zip
14-FRloopCount 7_lastRow=512_runningFine.zip
14-FRloopCount 8_1023=wtf_running_butNoBAtoggling...randomly__appearsToBeStuckInRepeatedBurst.zip
14-FRloopCount 9_1022rowsOK_1023Not.zip

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