Buffer Deadlock, Status Byte | Quantum Data 801GC, 801GF, 801GX

available) bit in the Status Byte register is set. This varies slightly from the 488.2 standard in that the MAV bit will only be set when at least one com- plete response message is present in the output queue. A complete response message consists of response message text and a message terminator (NL).

Buffer Deadlock

Buffer deadlock is occurs when the 801G* tries to put a response message in the output queue, the output queue is full, and the controller is held off while sending a new message because the input buffer is full. If deadlock occurs, the 801G* will clear its output queue, set the query error (QYE) bit in the Event Status register and proceed to parse incom- ing messages. If any additional queries are requested while in deadlock, those response messages will be discarded.

The 801G* will clear the buffer deadlock when it finishes parsing the current command/query. The QYE bit will remain set until read with the *ESR? query or cleared with the *CLS common command.

The Status Byte

The Status Byte used by the 801G* is the same as that defined by the IEEE-488.2 standard and does not use any other bits of the Status Byte. The Status Byte is one part of a complete status reporting sys- tem shown on the next set of facing pages. The Sta- tus Byte is read by using the serial poll feature of your controller.

Requesting Service

The GPIB provides a method for any device to in- terrupt the controller-in-charge and request servic- ing of a condition. This service request function is handled with the Status Byte. When the RQS bit of the Status Byte is true, the 801G* is requesting ser- vice from the controller. There are many conditions

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Quantum Data 801GC, 801GF, 801GX manual Buffer Deadlock, Status Byte, Requesting Service

Contents

Model 801GC, 801GF & 801GX ≤ 1 9 K B , 8 N 1 p r o t o c o l Thank you for considering our product Part# 68 00157 rev . a Feb Trademark Acknowledgments Basic Operation Features Product OverviewDisplays and Indicators Normal Mode Knobs Introduction Buttons SwitchesBuilt-In Formats Built-In Images BLUEM, GRNEM, REDEM, Whtem Table of Contents Display Codes Fuse Requirements AC Power Connection Display ConnectionLine Voltage Selector Programming Capabilities Overview ProgrammingExternal Programming Connections Serial Port Connection IEEE-488 Gpib Port Connection Input Buffer Table of Contents 177 TroubleshootingError Messages 801G Memory Information Flow Diagram Service Model 801GC, 801GF and 801GX Specifica Appendix ASpecifications 11-1Index Xiv Features Product Overview Features Formats Product Overview Output connectors on the 801G* match those Operating Modes Displays & Indicators Knobs Switches Buttons Front panel operation Operating Modes Switching operating modes Test Sequence Mode Programming Mode Displays and Indicators Normal Mode Knobs Image Looping Normal Mode Image Knob Other Modes AC Select SwitchesPower Switch Image Button Buttons Video Gate Buttons Outputs Button Sync Gate Buttons Introduction Format charts Built-In Formats Explanation of Terms Used in Charts AT&T Rate Built-in Formats Ð Macintosh Japanese NEC Sun Microsystems Workstation Japanese Sony EYC Description of the test images How to use them Built-In Images ImageName Descriptions of the Images MEMESony, MESonyB, MESonyG, MESonyR BLUEM, GRNEM, REDEM, Whtem MEMEPlus, MEPlusB, MEPlusG, MEPlusR BLUEM+, GRNEM+, REDEM+, WHTEM+ WHTPIC, Flat, Flat Gray, FlatB, FlatG, FlatR BLUPIC, GRAYPIC, GRNPIC, Redpic If purity cannot be corrected to acceptable limits Box50mm and Box64mm BriteBox BriteBox contd Brightness Control Adjustment test on the center TV formats only Burst Check511 CheckBy3 Check11 CirclesL CirclesS ColorBar Cubes Custom Aspect Ratio Dot10, Dot12, Dot24 Dot10, Dot12, Dot24 contd EMITest4 EMITest1EMITest2 EMITest3 Focus@6, Focus@7, Focus@8 FocusCx FocusH FocusOo DSS Format Brightness Uniformity tests first GrayBar Grill11, Grill22, Grill33, Grill44 Page Aspect Ratio Hatch10 Hatch12 Hatch24 Hatch4x3, Hatch5x4 and Hatch8x8 Hatch64W Hitachi1 KanjiKan Linearity Linearty Linearty Linearity contd LinFocus LinFocus contd Outline0 and Outline1 Outline0 and Outline1 contd Page Perform the Yoke Winding Orthogonality Check Page Built-In Images Persist 533101 1X 2X 3X 4X 5X 6X 7X PulseBar QuartBox Ramp Raster Regulate SlideRGB Samsung1Samsung2 SlideG SMPTE133 Built-In Images Smpte contd Primary version Smpte RP-133 Smpte contd Smpte contd SMPTEbar Gray Yellow Cyan Green Magenta Red Page Built-In Images Following tests are based on the original Smpte Stairs20 Strokes0, Strokes1 Text9 Text9, Text16 Text9, Text16 contd TVBar100 & TVBar75 TV formats only Page Model 801GC, 801GF & 801GX¥Rev TVHatch TV formats only After the center of the display is properly converged Making Connections Selecting a line voltage Line Voltage Selector Fuse Requirements AC Power Connection Display Connection Sub Output Connectors Explanation of abbreviations used in table Display Codes BNC Output ConnectorsVideo Connector 801GX Only Checking a Display Code Apple Macintosh Display Codes SUN Display CodesIBM VGA Display Codes Serial Port Connection External Programming Connections Null-Modem Cable 9-pin fem. to 9-pin fem PC / Terminal Wiring Connections Apple Macintosh Wiring IEEE-488 Gpib Port Connection Making Connections Programming Editing the format knob directory Editing and adding signal formatsProgramming Capabilities Overview Creating a test sequence Creating custom test imagesEditing the image knob directory Setting system parameters ProgrammerÕs utility disk Operating via remote control Using the Built-In Editors Programming DSS Format Editor Programming Page Programming Page American Hdtv ORed Page Programming Page Programming AT&TEVC Format Knob Directory Editor Programming SMPTE133 Image Knob Directory Editor Programming Page Custom Image Editor Page Primitive Name Parameters Fill patterns in a Custom Image Rectangle Gray50 15 2Ø 5Ø 4Ø Line Yellow 2Ø 5 32Ø 24Ø Grill Cyan Characters White 88 Ø Triangle Red50 10 5 10 25 40 15 HatchI-O Yellow 15 Seq.Step Cyan 10 What is a Sequence? NEC9PG Sequence Knob Directory EditorPage Sequence Editor Page Programming Running a Sequence Cancelling the Sequence Mode Entering the format parameters Creating your own format file Fmtg? Fmte Analog Video and Sync Parameters Adjusted Level = 255 x v / 255 1 / γ Output Level1.0 After Gamma Correction Digital Video Parameters Digital Sync Parameters Timing Parameters Htot = Hres / 1 Blanking x Hrat Hspw = Htot x Hrat x Pulse Width Vtot = Hrat / Vertical Rate Vspd = Hrat x Front Porch Calculated Rates Active Video Physical Size Outputs Control Programming Page Downloading formats using a DOS compatible computer Controlling via the Serial Port How to use Pcplustd . EXE Input Buffer Controlling via the IEEE-488 Port Message Syntax Commands Output Queue Queries Status Byte Requesting ServiceBuffer Deadlock Remote/Local Operation Logical or Event Status Bit Definitions Status Byte Bit Definitions Common Commands Bus Commands Clear Status Event Status Enable Operation Complete Event Status Register Options Reset Status Byte Service Request Enable Self-Test TST? Command and Query Finder Command Language Format Parameter Settings Format Editor Control Format Memory Management Tria Custom Image Primitives Color Options Fill Patterns Sequence Editor Control Image Editor ControlImage Memory Management Directory Editor Control Sequence Parameter SettingsSequence Memory Management Directory Memory Management System Parameter Settings Direct Processor Control Reserved Miscellaneous System Parameters Draw a single pixel DOT Alphabetical Listing of CommandsADDRADDRess Adot Analog Sync on Blue Gating AlluALL Use Asbg ASCT? AsctAnalog Sync Composite Type Analog Sync on Red Gating AsggAnalog Sync on Green Gating Asrg ASSC? AsscAnalog Sync Swing Calibration factor Assg Analog Sync Signal GateAssg ASSG? Analog Video Calibration Method Analog Sync Signal SwingAsss Avcm AVCO? Analog Video COnfigurationAvco AVCS? AvcsAnalog Video Color subcarrier Selection = PAL-BDGHI Analog Video Pedestal Swing AvpgAnalog Video Pedestal Gate Avps AVSC? AvscAnalog Video Swing Calibration factor AVSS? Analog Video Signal SwingAvss AVST? Analog Video Signal TypeAvst Dvst ≠ Number Base BootWarm Boot Base CACH? Instruction CACHe enableCach 100 CALF? CalfAnalog video CALibration Factors 101 102 103 CallCall internal function 104 CentDraw video CENTering markers Composite Sync Pulse Gate CrosDraw a centered CROSs Cspg 106 CsppComposite Sync Pulse Polarity DCBM? DcbmDisplay Code Bit Mask 107 DCEX? DcexDisplay Code EXpected 108 DIRectory save As DcrdDisplay Code ReaD Dira DIRectory editing End DirbDIRectory editing Begin Dire DIRectory Load DirkDIRectory Kill Dirl DIRectory Path DirnDIRectory New Dirp Dnum DirqDirs DSCT? DsctDigital Sync Composite Type 114 DSST? DsstDigital Sync Separate Type 115 DVSP? Digital Video Signal PolarityDvsp 116 117 Digital Video Signal TypeDvst 118 EquaEQUalization interval After vertical sync Pulse ForMaT save As EqubEQUalization interval Before vertical sync Fmta Fmtg FmtbFmte ForMaT Kill from memory by name FmtjForMaT Justify Fmtk 122 FmtlForMaT Load from memory by name 123 FmtnForMaT New ForMaT Query pointer FmtpForMaT Path Fmtq Fmts Fmtr Fmtu FmtuForMaT Use 126 127 FormDraw FORMat data block FRGB? FrgbForeground Red, Green and Blue levels 128 Gamc GAMma Correction modeGama GAMmA correction factor GET data from Relative memory location GetaGET data from Absolute memory location Getr Draw a GRIll pattern of Horizontal lines GridDraw a centered Grid Grih 132 GrivDraw a GRIll pattern of Vertical lines 133 HatiDraw a centered crossHATch from the Inside Out 134 HatoDraw a centered crossHATch from Outside Hres Horizontal RESolutionHrat Horizontal RATe HSIZ? HsizHorizontal SIZe 136 Horizontal Sync Pulse Gate Horizontal Sync Pulse DelayHspd Hspg Horizontal Sync Pulse Width HsppHorizontal Sync Pulse Polarity Hspw IDeNtification HtotHorizontal TOTal pixels per line IDN Imge ImgaImgb IMaGe Load ImgkIMaGe Kill Imgl IMaGe Path ImgnIMaGe New Imgp Imgr Imgq Init ImgsImgu Justify pixel clock RATe IverImage VERsion Jrat 146 KeyyKEY toggle LCD Status KnobRotate Knob Lcds Draw video LIMIts markers LedsLED Status Limi 149 LineDraw a Line MODE? Communications ModeMode 150 NAMe Find MsizLight Meter SIZe Namf NAMe Kill NamiNAMe Insert Namk Noga NamqNamy Draw an Oval OutgOUTputs Gate Oval 155 Draw a page of repeating characters PUT Absolute PcpgPixel Clock Pulse Gate Puta Pixel RATe Calibration factor PutrPUT Relative Ratc Self CALibrate RectDraw a RECTangle Scal Sdly Sequence step DeLaYScan Scan fields per frame Seqe SeqaSeqb SEQuence Load SeqkSEQuence Kill Seql SEQuence Path SeqnSEQuence New Seqp Sequ SeqqSeqs Smod Sequence operating MODeSize Size of bit field 165 SnumDraw sequence Step NUMber DVS Select Sync Signal TypeSsst 166 STEP? StepSequence Step number 167 Set levels relative to BLanking TextDraw Text string Tobl User IDeNtification TriaDraw a TRIAngle Uidn VERsion of Firmware UsizUnit of measure used for physical SIZes Verf Vres Vertical RESolutionVerh VERsion of Hardware VSIZ? VsizVertical SIZe 172 Vertical Sync Pulse Gate Vertical Sync Pulse DelayVspd Vspg Vertical Sync Pulse Width VsppVertical Sync Pulse Polarity Vspw VTOT? VtotVertical TOTal lines per frame 175 Xvsg Video Signal GatingWAI WAIt for completion suffix 177 801G Memory Information Flow Diagram T e s 178 Power-on Computer Interfacing If all else fails Normalpower-on Power-on message remains Power-on Computer Interfacing Error message at power-on Unit will not power-on If All Else Fails Error Messages Power on Self Test Messages System Errors System Messages Format Errors Format Error Messages System Error Message Summary Format Error Messages Horizontal active too small Pixel rate too lowHorizontal total not even Horizontal total must be multiple of 4 at pixel rate Horizontal sync pulse width too small for Horizontal total horizontal resHorizontal active too large or Horizontal total too small Horizontal pulse width less than Vertical total too small Horizontal pulse delay extends sync beyond blankingHorizontal sync pulse width must be even for Horizontal pulse width too large Vertical blanking too small Vertical total is evenVertical total too large Vertical active too small Vertical pulse too large Vertical active must be even when in inter- laced scan modeVertical pulse too small ACS available on green only Incompatible ACS & DCS typesIncompatible ACS & DSS types Avst requires Asct to be 3 or Invalid sync type Vertical pulse delay extends sync beyond blankingInvalid DSS type Horizontal physical size too small EQ before too largeEQ after too large Not enough video memory Analog video swing out of range Vertical physical size too smallPedestal swing out of range Gamma correction out of range Digital video polarity must be positive Analog video signal type invalidSync swing calibration out of range Invalid digital video type Image memory full Invalid color nameInvalid fill pattern name No image memory Invalid Lookup Table LUT level 10-bit DAC Img ed runningNothing to save Invalid Lookup Table LUT level 8-bit DAC No sequence to save No sequence memorySequence memory full Seq ed running Invalid font location Invalid delay time in sequenceFont index out of range No font present at given index 8450 Can’t remove, font not present Directory memory fullNo directory to save Directory list full Bad location for format verify 9453 Can’t change Eprom contentsInvalid format location Bad location for format, failed verify Bad location for format duplicate 9459 Can’t change Eprom contentsBad location for format name read Bad location for format copy Error duplicating formats 9470 Can’t change Eprom contents9472 Can’t change Eprom contents 9475 Can’t change Eprom contents Sequence data not found Service User Registration Card New Product Warranty Service Agreements Product Updates Getting Your 801G* Repaired Authorized Service Centers Quantum Data Inc North America Manufacturing, Sales and ServiceEurope Service Only Japan Sales Representative and Service Taiwan Sales Representative and Service Korea Sales Representative and ServiceSingapore Sales Representative and Service Appendix a Specifications Test Images Model 801GC, 801GF and 801GX Specifications Signal FormatsCustom Formats Custom Sequences Supplied Software Model 801GC, 801GF and 801GX Specifications User InterfaceOutput Connectors Computer Ports Outputs Horizontal TimingVertical Timing Digital Sync Additional Model 801GF Specifications Pixel Timing Appendix a Specifications Index Graypic III Magenta 170 171 151 VII Viii Page T e r n e t C o n n e c t i o n s