HP (Hewlett-Packard) E1429A User Manual
Contents
HP E1429A/B Digitizer User’s Manual
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Safety Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Chapter 1. Getting St ar te d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Chapter Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
HP E1429A/B Features and VXIbus Configuration . . . . . . . . . . . . . . . . . . . 13
Front Panel Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
HP E1429A/B VXIbus Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 15
Preparation for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
The Digitizer Logical Addr ess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
The Digitizer Bu s R equest Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Installing the Digitiz er . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Address ing the Digitizer over HP-IB . . . . . . . . . . . . . . . . . . . . . . . . . 19
Address i ng the Digi ti zer usi ng an Embedded Controller . . . . . . . . . . . . . . . 19
Introductory Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Sending the *ID N? Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Digitizer Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Resetting and Clearing the Digitizer . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Querying the Di gi ti zer Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 25
Instrument and Programming Languages . . . . . . . . . . . . . . . . . . . . . . . . . 28
SCPI Program mi ng . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Coupled Comma nds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
C Language Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Introducti on to Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Using the MEASure an d CONFigure Commands . . . . . . . . . . . . . . . . . . . 34
Programming Sequen ce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Configuring the Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
How to Make Measurement s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Using MEASure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Using CONFigure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Querying Comma nd Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Checking for Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Digitizer/Command Module Deadlock . . . . . . . . . . . . . . . . . . . . . . . . 47
Where to go Next . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Chapter 2. Using the Digitize r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Chapter Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Using the Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Configuring the Digitizer Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
INPUT.C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Taking a Burst of Readings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
ARMCNT.C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Contents HP E1429A/B Digitizer User’s Manual 1
Level Arming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
ARMLEVEL.C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Pre- and Post-Arm Readings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
PREPOST.C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Specifying a Sample Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
SAMPLE.C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Dual Rate Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
DUALSAMP.C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Using Mult ip le Digitizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
MULT_AD.C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Using the Packed Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
VME Bus Data Trans f ers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
VME_REAL.C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
VME Bus Data Transfers Using an Embedded Controller . . . . . . . . . . . . . . . . 72
SEGTST16 .C P P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
SEGTST32 .C P P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
SEGTST16 .CPP a nd SEGTST32.CPP #i nclude Files . . . . . . . . . . . . . . . . . 77
Local Bus Data Transfers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
LOCAL_AD.C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
LBUS2PST.C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
LBUSAUTO.C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Using the Digitizer Status Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
STATUS.C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Chapter 3. Understanding the Di git ize r . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Chapter Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
HP E1429 Digitizer Block Diagr am . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
The Message and Register Int erfa ce s . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Digitizer Command Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
The Digitizer In put Secti on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
SCPI Command Con tr ol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Setting the Signal Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Arming and Triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
The ARM-TRIG State Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Arming the Digitizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Triggering the Digitizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
The Sample Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
The Digitizer Reference Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
The Analog-to-Digital Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Data Flow, Storage, and Con ver sions . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Digitizer Data Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
2 HP E1429A/B Digitizer User’s Manual Contents
Digitizer Data Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Packed Reading Conversions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Retrieving Readings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Retrieving Readings Using READ? . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Retrieving Readings Using FETCh? . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Using DIAGnost ic: UP Load :SADDress? . . . . . . . . . . . . . . . . . . . . . . . . 141
Memory Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
The DIAGnostic Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
VME Bus Data Trans f ers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Locating the Da ta Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
The VINStrument Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Local Bus Data Transfers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Local Bus Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
How Data is Transferred . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Local Bus Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Digitizer Lo cal Bus Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Local Bus Transfer Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Digitizer Configuration Restr ictions . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Setting the Local Bus Tr an sfer Mode . . . . . . . . . . . . . . . . . . . . . . . . . 162
Setting the Lo cal Bus Data Source . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Multiple Local Bus Data Tr an sfers . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
The Digiti zer Status Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
The Status Subsystem Comman d s . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Status System Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
The Questionable Signal Status Group . . . . . . . . . . . . . . . . . . . . . . . . . 167
The Operation Status Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
The Standard Event St a tus Gr oup . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
The Status Byte Status Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Saving Digi ti z er Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
How to Save and Recall a C onfigurati on . . . . . . . . . . . . . . . . . . . . . . . 175
Chapter 4. Com mand Refe r enc e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Chapter Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Command Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Common Command Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
SCPI Command F orma t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Ke yword Separa t or . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Abbreviated Comm ands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Implied (Opt ional) Keywords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Variable Command Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
SCPI Command Pa ra m et er s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Parameter Types, Explanations, and Examples . . . . . . . . . . . . . . . . . . . . 180
Optional Par am eters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Querying Parameter Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
SCPI Command Execution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Command Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Executabl e When Initiated C omm a nd s . . . . . . . . . . . . . . . . . . . . . . . . 183
Linking Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
SCPI Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
ABORt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
ARM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
[:STARt]:CO UNt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
[:STARt]:DELay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Contents HP E1429A/B Digitizer User’s Manual 3
[:STARt][:IMMediate] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
[:STARt]:LEVel[<chan>]:NEGa ti ve <vo lt age> . . . . . . . . . . . . . . . . . . . . 192
[:STARt]:LEVel[<chan>]:POSiti ve <voltage> . . . . . . . . . . . . . . . . . . . . 193
[:STARt]:SLOPe[<n >] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
[:STARt]:SOURce[<n>] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
CALibration[<chan>] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
:COUNt? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
:DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
:DELay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
:GAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
:SECure:CODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
:SECure:STATe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
:STORe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
:STORe:AUTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
:VALue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
:ZERO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
CONFigure[<chan>] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
:ARRay:[VOLTage][:DC] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
DIAGnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
:CALibration[< ch an >]:CONVerge? . . . . . . . . . . . . . . . . . . . . . . . . . . 216
:CALibration[< ch an >]:GAIN:SENSitivit y? . . . . . . . . . . . . . . . . . . . . . 217
:CALibration[< ch an >]:ZERO:SENSitivity? . . . . . . . . . . . . . . . . . . . . . 217
:CHANnel[<chan >]:LABel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
:FETCh? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
:MEMory[< chan>]:FILL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
:MEMory[<chan>]:ADDResses? . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
:PEEK? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
:POKE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
:SGET? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
:SPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
:TEST? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
FETCh[<chan>] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
FETCh? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
:COUNt? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
:RECover? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
FORMat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
[:DATA] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
INITiate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
[:IMMediate] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
INPut[<port>] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
:FILTer[:LPASs][:STATe] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
:IMPedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
[:STATe] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
MEASure[<chan>] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
:ARRay[:VOLTage][:DC]? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
MEMory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
:BATTery[:ST ATe] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
:BATTery:CHARge? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
OUTPut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
:ECLTrg<n>:FEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
:ECLTrg<n>[:STATe] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
:EXTernal[1]:FEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
:EXTernal[ 1][:STATe] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
4 HP E1429A/B Digitizer User’s Manual Contents
:TTLTrg<n>:FEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
:TTLTrg<n> [:STATe] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
READ[<chan>] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
READ? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
SENSe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
[SENSe[<chan>]]:FUNCtion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
[SENSe[<chan>]]:FUNCtion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
[SENSe[<chan>]]:ROSCillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
:EXTernal: FREQuency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
:SOURce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
[SENSe[<chan >]]:SWEep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
:OFFSet:POINts <count> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
:POINts <count> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
[SENSe[<chan>]]:VOLTage[:DC] . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
:RANGe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
:RESolution? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
STATus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
:OPC:INITiat e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
:OPERati on|:QUEStionable:CONDi tion? . . . . . . . . . . . . . . . . . . . . . . . 267
:OPERati on|: QUEStionable: ENABle . . . . . . . . . . . . . . . . . . . . . . . . . 267
:OPERati on|:QUEStionable[:EVENt]? . . . . . . . . . . . . . . . . . . . . . . . . 268
:OPERati on|: QUEStionable: NTRansition . . . . . . . . . . . . . . . . . . . . . . . 269
:OPERati on|: QUEStionable: PTRansition . . . . . . . . . . . . . . . . . . . . . . . 269
:PRESet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
SYSTem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
ERRor? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
:VERSion? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
TRIGger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
[:STARt]:CO UNt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
[:STARt][:IMMediate] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
[:STARt]:SOURce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
[:STARt]:TIMer [1] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
PERIOD VALUE TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
[:STARt]:TIMer 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
PERIOD VALUE TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
VINStrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
Local Bus transfers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
VME (VXI data transfer) Bus transfers . . . . . . . . . . . . . . . . . . . . . . . . 284
[:CONFigure]:LBUS:FEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
[:CONFigure]:LBUS:MEMory:INI Tia t e . . . . . . . . . . . . . . . . . . . . . . . 286
[:CONFigure]:LBUS[:MODE] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
[:CONFigure]:LBUS:RESet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
[:CONFigure]:LBUS:SEND:POINts . . . . . . . . . . . . . . . . . . . . . . . . . 289
[:CONFigure]:LBUS:SEND:POINts:AUTO . . . . . . . . . . . . . . . . . . . . . 290
[:CONFigure]:TEST :DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
[:CONFigure]:VME: FEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
[:CONFigure]:VME:MEMory:INITi at e . . . . . . . . . . . . . . . . . . . . . . . . 294
[:CONFigure]:VME[ :MODE] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
[:CONFigure]:VME:SE ND:ADDRess:DATA? . . . . . . . . . . . . . . . . . . . . 296
:IDENtity? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
IEEE-488. 2 Common Command s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
*CLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
*DMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
Contents HP E1429A/B Digitizer User’s Manual 5
*EMC and *EMC? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
*ESE and *ESE? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
*ESR? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
*GMC? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
*IDN? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
*LMC? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
*LRN? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
*OPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
*OPC? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
*PMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
*PUD and *PUD? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
*RCL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
*RMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
*RST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
*SAV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
*SRE and *SRE? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
*STB? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
*TRG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
*TST? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
*WAI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
SCPI Conforma nce Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Appendix A. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
Appendix Conten t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
Memory Character i sti cs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
Amplitude C ha ra ct eristics and Sig nal Conditionin g . . . . . . . . . . . . . . . . . . 319
Frequency and Sample Rate Cha ra cteristics . . . . . . . . . . . . . . . . . . . . . . 325
Internal Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
Trigger (Sample Clock) Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . 325
Bus Access and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
General Cha ra cteristic s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328
Appendix B. Useful Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Appendix Conten t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Appendix C. Register Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Appendix Conten t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Reading and Writing to the Registers . . . . . . . . . . . . . . . . . . . . . . . . . 342
Address ing the Reg isters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
Determining the A24 Ba se Ad dre s s . . . . . . . . . . . . . . . . . . . . . . . . . . 344
Register Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347
A24 Register Ta ble
The Input C onfiguration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 350
The A/D Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
The A/D S eria l Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
The A/D Par al lel Strobe Register . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
The A/D Shift Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
The Arm a nd Trigger C on figuration Registers . . . . . . . . . . . . . . . . . . . . . . 353
The Abort and Arm Immediat e Register . . . . . . . . . . . . . . . . . . . . . . . . 353
The Arm St at us Re gister . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353
The Timebase Initiation Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354
6 HP E1429A/B Digitizer User’s Manual Contents
The Arm Interna l Bus Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355
The Arm Source Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355
The Arm Con trol Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
The Trigger Source Regi ster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
The Reference Oscil la tor Regist er . . . . . . . . . . . . . . . . . . . . . . . . . . . 359
The Arm delay Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360
The Arm Coun t Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360
The Arm Coun t Latch Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360
The Trigger Immediate Reg ister . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361
The Decade Division Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361
The Binary Division Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361
The Pre- Ar m Reading Count R eg isters . . . . . . . . . . . . . . . . . . . . . . . . 362
The Post-Arm Rea di ng Count Registers . . . . . . . . . . . . . . . . . . . . . . . . 362
The Memory Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
The Traffic Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
The Pulse Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
The Channel ID Re gister . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
The Data Regi ster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
The Memory Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
The Memory Address Regist er s . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366
The Terminal Address Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367
The Base Address Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367
Configuring the Digitizer Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368
Using the A/D Shift Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368
Enabling the Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 369
Setting the Input Impeda nce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370
Enabling the 10 MHz Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370
Setting the Measurem en t Ran g e . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370
Arming and Triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Checking the Idle State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Setting the Digi tizer Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 373
Setting the Arm Sour c e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373
Setting the Arm Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
Setting the Arm Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
Setting the Re ference Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375
Setting the Trigger Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376
Sending an Arm Immediate Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . 376
Sending a Tr i gger Immed ia te Signal . . . . . . . . . . . . . . . . . . . . . . . . . 377
Aborting Measuremen t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
Re-initiating the Digiti z er . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 378
Initializing Digitizer Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 378
Initializing and Initiating the Timebase Processor . . . . . . . . . . . . . . . . . . . 380
Retrieving Da ta from Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385
Initializing Di gitiz er Memory to Retrieve Data . . . . . . . . . . . . . . . . . . . . 385
Example Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388
Contents HP E1429A/B Digitizer User’s Manual 7
Appendix D. Local Bus Interleaved Transfers . . . . . . . . . . . . . . . . . . . . . . . . 405
Appendix Conten t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405
Interleaved Transfers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405
Setting the Interlea ved Tr an sfer Mode . . . . . . . . . . . . . . . . . . . . . . . . . 406
Programming Pr ocedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407
Example Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413
8 HP E1429A/B Digitizer User’s Manual Contents
Certification
Hewlett-Packard Company certifies that this product met its published s peci fica t ions at the time of ship me nt from th e fact ory. Hewlet tPackard further certifi es that its calibrat ion mea sureme nt s are tracea ble to the Unit ed Sta tes Na tion al Institut e of Standards and Technology (formerly National Bureau of Standards), to the extent allowed by that organization’s calibration facility, and to the calibration
facilities of other International Standards Organization members.
Warranty
This Hewlet t-Pa ck ar d product is warr ante d agai nst de fect s in mate rials and w orkmansh ip for a period of three years from date of shipment. Duration and conditi ons of warranty f or this pr oduct ma y be super seded when the p r oduct is integrate d in to ( becomes a part of)
other HP product s. Du ring the warrant y period, Hewlett-Packard Company will, at its opt ion, either repair or re pl ace pr oducts which
prove to be defective.
For warranty se r vice or repair, this product mu st be r et ur ned to a service facil ity de si gnated by Hewlett-Packard (HP). Buyer shall prepay shipping cha rges to HP and HP shall pay shipping charges to retu rn t he product to Bu yer. Howe ver, Buyer shall pa y all ship ping
charges, duties, and taxe s for products returned to HP from anot her count r y.
HP warrants that its softwar e and firmwar e designa ted b y HP for use with a product will execute its programmin g instru cti ons wh en
properly installe d on that product. HP does not warrant that the operat ion of the product, or software , or firmware will be uninterrupted
or er ro r f r ee.
Limitation Of Warrant y
The foreg oin g warra nt y sh al l not apply t o defects resulting from improper or inadequa t e mai nt enance by Buyer, Buyer-supplied products or interfacing, unauthori ze d m odificati on or misus e, operation outside of the environmenta l specificat i ons for the product, or improper site prep arat i on or maint ena nce.
The design and imp le mentation of any circuit on this product is the sole responsibility of the Buyer. HP does not warrant the Buyer’s
circuitr y or malfunctions of HP products that result from the Bu yer’s circuitry. In addition, HP d oes not warrant a n y damage that occurs as a result of the B uyer’s circuit or any defects th at re sult from Buyer-supplied product s.
NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. HP SPECIFICALLY DISCLAIMS THE IMPLIED WARR ANT IES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
Exclusive Remedie s
THE REMED IES PROVIDED HEREIN ARE BUYER’S SOLE AND EXCLUSIVE REMEDIES. HP SHALL NOT BE LIABLE
FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY OTHER LEGAL THEORY.
Notice
The information contained in this document is subject to change without notice. HEWLETT-PACKARD (HP) MAKES NO WARRANTY OF ANY KIND W ITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. HP shall not be liable for errors contained
herein or for incidental or consequential damages in connection with the furnishing, performance or use of this material. This document c ontains proprietary information which is protect ed by copyright. A ll ri ghts are reserved. No part of this document may be photocopied, reproduced, or translate d to another lan guage wit h out the prior written consent of Hewlett -Packar d C ompany. HP assumes no
responsibility for the use or reliability of its software on equipment that is not furnished by HP.
Restricted Rights Legen d
The Software and Documentation have been developed entirely at private expense. They are delivered and licensed as "commercial
computer software" as defined in DFARS 252.227-7013 (Oct 1988), DFARS 252.211-7015 (Ma y 1991) or DFARS 252.227-7014
(Jun 1995), as a "commercial item" as defined in FAR 2.101(a), or as "Restricted computer software" as defined in FAR 52.227-19
(Jun 1987) (or any equivalent agency regulation or contract clause), whichever is applicable. You ha ve o n ly th o s e ri gh t s pr o vi d e d f or
such Software and D ocum ent at ion by the applicable FAR or D FARS clause or the H P st andard software agreement for the product involved.
HP E1429A/B 20 MSa/ s 2-Channel Digi tizer User’s Manua l
Copyright © 1993 He wle tt-Pa cka rd Company. All Right s Reser ve d.
Edition 2
HP E1429A/B 20 MSa/s 2-Channel Digitiz er User’s Manual 9
Documentatio n History
All Editions and Updates of this manual and their creation date are listed below. The first Edition of the manual is Edition 1. The Edition number increment s by 1 whenever the manua l is revised . Updates , which are issued betw een Edi ti ons, c ontain repla ce ment pa ges
to correct or add additional information to the current Edition of the manual. Whenever a new Edition is created, it wil l contain all of
the Update inf ormat ion for the pre viou s Editi on. Each new Ed iti on or Update also incl ude s a revis ed c op y of this documentation history page.
Edition 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . March 1993
Edition 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . June 1993
Safety Symbols
Instruction manual symbol affixed to product. Indicat es that the us er must refer to the
manual for specific WARNING or CAUTION information to avoid personal injury
or damage to the product.
Indicates the field wiring terminal that must
be connected to earth ground before operating the equipment—protects against electrical shock in case of fault.
Frame or chassis ground termi nal — t ypi-
or
cally connects to the equipment’s metal
frame.
WARNING
CAUTION
Alternating current (AC).
Direct curren t (DC).
Indicate s ha za rdous voltages.
Calls at te nt i on t o a pr ocedure, practi ce, or
condition that could cause bodily injury or
death.
Calls at te nt i on t o a pr ocedure, practi ce, or condition that could possibly cause damage to
equipme nt or perma nen t los s of data.
WARNINGS
The following ge ner al safet y prec aut ions mus t be observed du ring al l phas es of oper ation , ser vice , and repai r of this pr oduct.
Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design,
manufacture, and inten ded use of the product. Hewlett-Packar d Company assumes no liability for the custo mer’s failu re to
comply with these requirements.
Ground the equipment: For Safety Cl as s 1 equipmen t (equ ipment ha vin g a protective ea rth ter mi nal) , an unint erru ptib le sa fety earth
ground must be provide d from the ma in s power sour ce to the produ ct input wi rin g termi nals or suppli ed power cable .
DO NOT operate the produc t in an explosive at mospher e or in the presen ce of flammable gases or fume s.
For continued protect ion a gainst fire, repl ace the line fuse (s) only with fuse(s) of the same voltage and current rating and type .
DO NOT use repaired fuses or short-circui ted fuse holders.
Keep away from live circuits: Operatin g personnel must not remove equipment covers or shields. Procedures involving the removal
of covers or shields are for use by service-trained personnel onl y. Unde r ce rta in c onditi ons , dangerous voltages may exist even with the
equipment switched off. To avoid dangerous ele ctrical shock , DO NOT perf orm procedures involving cover or shield removal unless
you are qualified to do so.
DO NOT operate damaged equipment: Whene ver it i s p ossibl e tha t the sa fe ty protection features buil t int o t hi s product have been impaired, eithe r t hr ough physical dam a ge, excessive moisture, or an y other reason, REMOVE POWER and do not use the product until
safe operation can be verified by service-trained personnel. If necessary, return the product to a Hewlett-P ackar d Sales and Se rvice O ffice for service and repair to ensure that safety features are maintaine d.
DO NOT service or adjust alon e: Do not attempt internal service or adjustment unless another person, capable of rendering first aid
and resuscitation, is present.
DO NOT substitute parts or modify equipment: Because of the danger of introducin g additional hazards , do not install substitute
parts or perform any unauthorized modifica tion to the product. Retur n the product to a Hewlet t-P ackar d Sales and Ser vice O ffice for
service and repair to ensure that sa fe ty features are mai ntained.
10 HP E1429A/B 20 MSa/s 2-Cha nnel Digitiz er User’s Manual
Declaration of Conformity
according to ISO/IEC Guide 22 and EN 45014
Manufacturer’s Name: Hewlett-Pa ckar d C ompany
Loveland Manufacturing Center
Manufact urer’s Addre s s: 815 14th Street S.W.
Loveland, Colorado 80537
declares, that the product:
Product Name: 20MS a/s Digitizer
Model Number : HP E1 429A
Produc t Opt ion s: All
conforms to the following Pr od uct Spe cifi cati ons :
Safety: IEC 1010-1 (1990) Incl . Amend 1 (1992) /E N610 10-1 (1993)
EMC: CISPR 11:1990/EN55011 (1991): Group1 Class A
IEC 801-2:1991/ E N5008 2-1 (1 992) : 4kVCD, 8k VA D
IEC 801-3:1984/ E N5008 2-1 (1 992) : 3 V/m
IEC 801-4:1988/ E N5008 2-1 (1 992) : 1kV P ower Lin e
Supplementary Information: The product her ewi th c omplies w ith the requirements of t he Low Voltage Dire ctive
73/23/EEC and the EMC Directive 89/336/EEC.
Tested in a typical configuration in an HP C-Size VXI m ai nframe.
March 1, 1993 Jim White , QA Manager
European conta ct: Your loca l He wlett-Pa cka rd Sales a nd Servi ce O ffic e or Hewlett- Packa rd GmbH, Departm ent
ZQ/Standards E urop e, Herren ber g er Straße 130, D-70 30 Böblingen , Germa ny (FAX +49-703 1-14 3143 ).
HP E1429A/B 20 MSa/s 2-Channel Digitizer User’s Manual 11
Notes
12 HP E1429A/B 20 MSa/s 2-Cha nnel Digitiz er User’s Manual
Chapter Contents
Chapter 1
Getting Started
This chapter covers the features, configuration, and programming
procedures for the HP E1429A/B 2-Channel, 20 MSa/s Digitizer. The main
sections of this chapter include:
• HP E1429A/B Features and VXIbus Configuration . . . . . . . 13
• Preparation for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
• Introductory Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Sending the *IDN? Command. . . . . . . . . . . . . . . . . . . . . . 20
Digit izer S elf -Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Reset ting and Clearing the Digitizer . . . . . . . . . . . . . . . . . 23
Queryin g the Digitizer Conf iguration . . . . . . . . . . . . . . . . 25
• Instrument and Programming Languages . . . . . . . . . . . . . . . 28
• Introduction to Programming. . . . . . . . . . . . . . . . . . . . . . . . . 33
• Where to go Next . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
HP E1429A/B Features and VXIbus Configuration
The HP E1429A/B is a 2-Channel, 20 MSample/second digitizer. The
HP E1429A/B digitiz ers are VXI messa g e-bas ed instru ments, but ca n also
be programmed at the register level (register programming is covered in
Appendix C). The features of the HP E1429 A and HP E1429B are the same,
except that the HP E1429B also has VX I Local bus data trans f er capab ility.
This manual c overs t he u s e of bot h di gitizers.
Front Panel
Description
Figure 1-1 describes the front panels of the HP E1429A/B digitizers.
Chapter 1 Getting Started 13
Figure 1-1. The HP E1429A/B Digitizer
14 Getting Started Chapter 1
HP E1429A/B
VXIbus
Configuration
Table 1-1 lists the digitiz er’s VXIbus d evic e infor mation and fact ory
settings. Appendix A has the complete list of HP E1429A/B operating
specifications.
Table 1-1. HP E1429A/B VXIbus Configuration
VXIbus Device Info rmation
Device type: messag e-based s ervant
C-size (1 slot)
Connectors: P1 and P2
Addressing modes: A16/A24
Data transf er mo des: D08/D16/D3 2 sla v e
A24 size: 4096 bytes
Dynamical ly Conf igur able
Non-interrupter/non-interrupt handler
VXIbus R evision Compli anc e: 1.4
SCPI Revision: 1992.0
See side of module for po wer/cooling requirements
HP E1429A/B Factory Settin gs
Parameter Setting
Logical Address 40
Servant Area 0 (not used)
Bus Requ est Level 3
Input signals (DC and AC) which may be connected to this module are
likely to include occasional overvo ltag e transi ent s. These
overvoltages may be caused by moto r inductan ces, switchin g circuits,
lightning, etc.
If the input signal is likely to exhibit transien ts great er than 800 Vpk,
add external transient suppression circuitry to reduce transients to
800 Vpk or less.
Chapter 1 Getting Started 15
Caution The 800 Vpk level is a product safety test specification and
does not assure correct product operation if 800 Vpk transients
have been applied. To maintain product functionality and
performance, do not exceed ±42 Vpk on the single-ended
inputs, or ±102.4 Vpk on the differential inputs.
Preparation for Use
This section contains configuration information specific to the
HP E1429A/B digitizer.
Note For more (VXIbus) system configuration information, refer to the C-Size
VXIbus Systems “Installation and Getting Started Guide".
The Digitizer
Logical Address
Assigning the Digitizer
to a Commander
The HP E1429A/B d igitizer logical address is u sed:
• to place the digitizer in the servant area of a commander
(e.g. HP E1406 Command Module, embedded controller, or another
instru ment).
• to address the digitizer (see “Addressing the Digitizer” or “ Using
an Embedd ed Contr oller” later in this chapt er.)
In a VXIbus system, every device must be in the servant area of a
commander ( with the exception of the t op-level comander).
Note the following when assigning the digitizer to a commander:
• A commander’s servant area is defined as:
Servant area = (logical address + 1) through (logi cal address +
servant area switch setting)
• The HP E1429A/B digitizer is a message-based device. If an
embedd ed controller a n d an HP E1406 Com mand Module are part of
your VXIbus system, put the digitizer in the servant area of the
controller. This enab les you to program the digitiz er at higher speeds
across the VXIbus backplane, rath er than o ver the Hewlett-Pac kard
Interface Bus (HP-IB*) via the Command Module.
* HP-IB is Hewlett-Pack ard’s implementation of IEEE St d. 488.1-1978
16 Getting Started Chapter 1
• If your system uses an external controller and the HP E1406
Comman d Modu le, put t he digitizer in the servant area of the
Command Module. This enables the module to function as the
HP-IB interfac e to the digitizer.
The HP E1406 Command Modu le has a factory set l ogical addre ss of
0 and a servant area switch setting of 255. Using the factory settings,
it is not necessary to change the logical address of the digitizer (40)
to place it in the servant area of the Command Module.
• If the digitizer is used with the HP E1485 Digital Signal Processing
(DSP) module, the digitizer must be in t he serva nt area of the DSP
module.
The digitizer’s logical a d dres s switch is shown in Figu r e 1-2.
Figure 1-2. HP E1429A/B Logical Address Switch Location
Chapter 1 Getting Started 17
Note The digitizer’s servant area switches are not used and should be left in their
factory-set (0) position.
The Digitizer Bus
Req uest Level
Bus Request Level
Guidelin es
Inst al l ing the
Digitize r
The bus request level is a priority at which the HP E1429A/B d igitizer can
request the us e of the VME (VXI Data Transfer) Bus.
• There are four bus requ est lines (BG0 - BG3) from which one is
selected (Figure 1-2). Bus request li ne 3 has the highest priority, bus
request line 0 has the lowest priority. It is not necessary to change
the bus request level setting (BG3) on the digitizer.
• More information on th e Data Transfer Bus can be found in the
C-Size VXIbus Systems “Installation and Getting Started Guide”.
The HP E1429A/B digitizer can be installed in any mainframe slot except
slot 0. However, in applications where the HP E1429B is generating data
over the Local bus, insta l l the digitizer in the left slot adjacent to the
module(s) rec eivin g the data. Fi gure 1-3 shows the installation of a sample
Local bus configuration.
Figure 1-3. Installing the HP E1429B Digitizer in a Local Bus Config urat ion
18 Getting Started Chapter 1
Note For compliance with European EMC sta nda r ds EN 55011 and
EN 50082-1, backplane connector shields are included with each
HP E1429A/B digitiz er ordered. The shields need only be installed in the
VXI mainframe if it is necessary to comply with these standards.
Addr e ssing the
Digitizer over HP-IB
Devices in the Series C mainframe and in the servant area of the HP E1406
Command Module are located by an HP-IB address. The HP-IB address is a
combination of the controller’s interface select code, the Command
Module’s primary HP-IB address, and the device’s secondary HP-IB
address. An address in this form appears as:
70905
Interface Select Code (7): Determined by the address of the HP-IB
interface card in the contr olle r . In most H ewlett-Packard controllers, this
card has a factory s et addre ss of 7, including the HP 82335 HP- IB Interface
Card (t his ca r d w as used with an HP V e ctra AT comp atible personal
computer to create the C programs on the example programs disk).
Primary HP-IB Address (09): Th is is the address of the HP-IB port on the
Command Module. Valid addresses are 0 to 30. The Command Module has
a factory set address of 9.
Secondary HP-IB Address (05): This address is d erived from the logical
address of the digi tizer by dividing the logical address b y 8. Thus, for the
HP E1429A/B digitiz er factory set logical address of 40, t he sec ondary
address is 05.
Addr e ssing the
Digitizer using an
Embedded
Controller
As a message-based device, the HP E1429A/B digitizer can easily be
programmed across the VXIbus backplane from a HP E1499A V/382
embedd ed controller . Th e select code of the VXI interfa ce board in
embedded controllers is typically 16. Since no secondary HP-IB address is
required when progr amming over the bac kplane, the logical address of the
HP E1429A/B digitizer is combined wit h the VXI i nt erface select code:
1640 (for device logical address 40; rang e = 01 to 99)
If the digitizer’s logical address is changed to a value greater than 99, the
address becomes:
160xxx
Chapter 1 Getting Started 19
Introductory Programs
The introductory programs in this section include:
• Sending the *IDN? Command
• Digitizer Self-Test
• Resetting the digitizer and clearing the status registers
• Queryin g the digitizer c onfigurat ion
HP BASIC and C language versions of the introductory programs follow. C
language versions of these and all programs in t he manual are contain ed on
the following disk which s hips with the manua l:
• HP E1429A/B Example Programs: C Language
3.5" 720 KByte disk (HP E1429-10302)
Other than the introductory programs and selected programs throughout the
manual, t h e program l istings show only the digitizer commands.
Sending the *IDN?
Command
HP BASIC
10 !Send the *IDN? command, enter and display the re sult.
20 DIM Message$[80]
30 OUTPUT 70905;"*IDN?"
40 ENTER 70905;Message$
50 PRINT Message$
60 END
IDN.C
/* IDN.C - This program sends the *IDN? command to the digitizer as a */
/* way to determi ne if the compu t er is com muni c ating with the di gi tizer */
/* Include the following header files */
The following programs are a fast metho d for det ermining if the digitizer is
set to the int ended addre ss a nd is communicating with the computer. The
programs send the *IDN? command which returns:
HEWLETT-PACK ARD,E1429A,0,A.02.00
#include <stdio.h>
#include <cfunc.h> /* This file is from the HP-IB Command Library Disk */
#define ADDR 70905 /* I/O path from the PC to the digitizer */
Continued on Next Page
20 Getting Started Chapter 1
/****************************************************************************/
void main(void) /* Run the program */
{
char message[80];
intlength = 80;
IOOUTPUTS(ADDR, "*IDN?", 5); /* send *IDN? comm and */
IOENTERS(ADDR, me s sage, &length); /* enter *IDN? response */
printf("%s\n", message); /* print*IDN? response */
}
Digitizer Self-Test The digitizer self-test is executed with the co mmand:
*TST?
The digitizer parameters tested include:
• internal interrupt lines
• measurement range integrity
• measurement RAM integrity
• battery charge
• timebase integrity
The self-test takes approxima t ely 30 seconds to comple t e. Upon co mpletion,
one of the self-test codes listed in Table 1-2 is returned.
Table 1-2. HP E1429A/B Self-Test Codes.
Self-Test Code Description
0 T est passed
1 Test failed. An error message describes the failure.
Chapter 1 Getting Started 21
HP BASIC
Caution Executing the self-test erases the readings in the digitizer’s
non-volatile memory.
If the self-test fails, the command:
DIAGnostic:TEST?
can be executed to obtain additional information on the failure. Note that
DIAGnost ic:TEST can return a str ing up to 40 c har a ct ers.
10 !Send the self-test command, enter and display the r e sult.
20 DIM Message$[256],Diagnostic$[40]
30 OUTPUT 70905;"*TST?"
40 ENTER 70905;Rslt
50 IF Rslt <>0 THEN
60 REPEAT
70 OUTPUT 70905;"SYST:ERR?"
80 ENTER 70905;Code,Message$
90 PRINT Code,Message$
100 UNTIL Code =0
110 OUTPUT 70905;"DIAG :TES T?"
120 ENTER 70905;Diagnostic$
130 PRINT Diagnostic$
140 END IF
150 PRINT Rslt
160 END
SLFTST .C
/* SLFTST.C - Thi s program perform s a self-t est on the digitizer and prints */
/* out the resulting self-te st code */
/* Include the following header files */
#include <stdio.h>
#include <cfunc.h> /* This file is from the HP-IB Command Library Disk */
#define ADDR 70905L /* I/O path from the PC to the digitizer, via the E1406 */
Continued on Next Page
22 Getting Started Chapter 1
/****************************************************************************/
void main(void) /* Run the program */
{
char message[256], diagnostic[80];
intlength = 256;
float tst;
IOOUTPUTS(ADDR, "*TST?", 5); /* send the self-test command */
IOENTER(ADDR, &tst); /* enter the code */
printf("%d\n\n" , (int) tst); /* display the code */
if (tst != 0)
{
IOOUTPUTS (ADDR, "SYST:ERR?", 9); /* query error register */
IOENTERS(ADDR, me s sage, &length); /* enter error message */
printf("Error: %s\n\ n", me s sage); /* print error message */
IOOUTPUTS (ADDR, "DIAG:T ES T?" , 10); /* get diagnostic information */
IOENTERS(ADDR, diagnostic, &length); /* on self-test error */
printf("Diagnosti c infor mat i on: % s\n", diagnostic);
}
}
Resetting and
Clearing the
Digitizer
The commands used to reset and clear the digitizer are:
*RST
*CLS
*OPC? (OPeration Complete) is often executed after *RST and *CLS to
allow the reset and clear to c omplete before progra m e xecution cont inues .
Resetting the digitizer sets it to its power-on c onfiguration, and clearing the
digitizer clears its status registers. Additional info r mation o n the status
registers is lo cat ed in Chap t er 3.
Chapter 1 Getting Started 23
HP BASIC
RSTCLS.C
10 !Assign an I/O path between the computer and digitizer.
20 ASSIGN @A_d TO 70905
30 COM @A_d
40 !Call the subprogram
50 Rst_cls
60 END
70 !
80 SUB Rst_cls
90 Rst_cls: !subprogram which resets and clears the digitizer.
100 COM @A_d
110 OUTPUT @A_d;"*RST;*CLS; *OP C?" !reset and clear
120 ENTER @A_d;Complete
130 SUBEND
/* RSTCLS.C - This program re sets the digi tizer and clears its status register */
/* Include the following header files */
#include <stdio.h>
#include <cfunc.h> /* This file is from the HP-IB Command Library Disk */
#define ADDR 70905L /* I/O path from PC to the digitizer, via the E1406 */
/* Function Prot oty p e s */
void rst_cl r(v oi d);
/****************************************************************************/
void main(void) /* Run the program */
{
rst_clr(); /* Reset and clear the digitizer */
}
/****************************************************************************/
void rst_clr(void)
{
IOOUTPUTS(ADDR, "*RST;*CLS", 9); /* reset and clear the digitizer */
}
24 Getting Started Chapter 1
Configurat ion
HP BASIC
Querying the
Digitize r
After resetting the digitizer or cycling power, the digitizer parameters are
set to their power-on values. These values are listed in Appendix B, Table
B-2. You can determine the digitizer’s reset settings or its current
configuration using the command:
*LRN?
The data returned b y *LRN? is a semicolon (;) separated list of each
paramet er setting.
10 !Assign an I/O path between the computer and the A/D.
20 ASSIGN @A_d TO 70905
30 !Call the subprogram
40 Lrn_conf(@A_d)
50 END
60 !
70 SUB Lrn_conf(@A_d)
80 Lrn_conf: !subprogram which queries the digitizer configurat i on
90 DIM Lrn$[2000]
100 INTEGER I
110 OUTPUT @A_d;"*LRN?"
120 ENTER @A_d;Lrn$
130 Lrn$=Lrn$&";"
140 REPEAT
150 I=POS(Lrn$,";")
160 PRINT Lrn$[1;I-1]
170 Lrn$=Lrn$[I+1]
180 UNTIL Lrn$=""
190 SUBEND
Chapter 1 Getting Started 25
LRN.C
This program uses a 2,000 element character array. To prevent stack
overflow errors when compiling and running this program using
Microsoft® Q uic kC©, change the stack size using the /F option of the
“qcl” command. An example of how this program might be compiled is:
qcl /AL /F 8192 b:\lrn. c c:\ qc2\ l ib\clhpib.lib
/* LRN.C - This program queries the digitizer’s reset condition s */
/* Include the following header files */
#include <stdio.h>
#include <string.h>
#include <cfunc.h> /* This file is from the HP-IB Command Library Disk */
#define ADDR 70905L /* I/O path from PC to the digitizer, via the E1406 */
/****************************************************************************/
void main(void) /* Run the program */
{
char static *codes[] = {"*RST","*LRN?;*OPC?"} ;
char lrndata[2000], *prt, ch;
int loop,
length = 2000;
/* Execute each command group using a loop */
for (loop = 0; loop < (sizeof(codes) / sizeof(char*)); loop+ + )
IOOUTPUTS( ADDR, codes[loop], strlen(codes[loop]));
/* Enter data returned by *LRN into string */
IOENTERS(ADDR, lrndata, &length);
/* Start line counter */
loop = 1;
/* Separate *LRN? data into tokens delimited by ";". Read and */
/* print the first *LRN? data point */
Continued on Next Page
26 Getting Started Chapter 1
prt = strtok(lrndata,";");
printf("\n\t%s",prt);
/* Print out each (*LRN? data) token */
while (prt != NULL)
{
prt = strtok(NULL,";");
/* Exit when data returned by *OPC? (1) is reached */
if (atoi(prt) == 1)
break;
/* Print one user screen’s worth of *LRN? data, have user */
/* press ’Enter’ to see the next screen of data */
if (loop >= 23)
{
printf("\n\nPr e ss \’Enter\ ’ to c onti nue");
scanf("%c" , &ch);
fflush(stdin);
loop = 0;
}
printf("\n\t%s",prt);
loop ++;/* increm ent counter */
}
}
Chapter 1 Getting Started 27
Instrument and Programming Languages
The purpose of this manual is to teach you how to use the HP E1429A/B
digitizer. To do this, the manual us es block diagra m s, flowcharts, and
example programs. In most cases, the manual’s example programs list only
the digitizer’s SCPI c ommand s. The I/O (input/output) constructs depend on
the programming language you use.
SCPI Programming SC PI (Standar d C omma nds f or Programma ble Instruments) is an
ASCII-based instrument command language des igned for test and
measurement instruments. The message-based digitizer has an on-board
microprocessor wh ich interprets the ASCII command stri ngs and returns
ASCII formatted results.
Command Listings The typical format of commands listed in the command reference and
throughout t his manual is:
TRIGger[:STARt]:TIMer1 <period>
To aid in lear ning the digitizer c o mmand set, al l headers are inc lude d
in the example programs; however, the headers are abbreviated. In an
example program, the previous statement with a period parameter o f
µs would appear as:
10
TRIG:STAR:TIM1 10E-6
Note Chapter 4 contains more information on the structure and execution of SCPI
commands.
Coupled Commands Some of the digitizer SCPI commands are functional or value coupled.
Functionally coupled commands are those that for one command to have
affect, another command must be set to a particular value. Value coupled
commands are t hose where changing the value of one command, changes
the value of the others.
28 Getting Started Chapter 1
Coupled commands can cause “Settings conflict” errors when the program
executes. When a coupled command is executed, the command setting is
evaluated by t he digitizer processor. If the setting causes an illegal digitizer
configuration, a "Settings conflict" error occurs. The error messa ge lists the
conflicting settings, and then reports the values set by the digitizer processor.
The "Comments" section of each command reference entry (Chapter 4)
indicates if a command is coupled, and if it is, what the coupling constraints
are.
How to Execute
Coupled Commands
To prevent possible "Settings conflict" errors, coupled commands must be
contiguous and executed in the same program statement. This is done by
placing the commands in the same program line, or for HP BASIC
programs, by suppr e ssing the EOL terminator until the last (coupled)
command has been sent.
To send multiple commands in a single line or in a single statement, the
commands ar e linked with a s emi colon (;) and a colon (:). This is illustrated
in the foll owing l ines :
OUTP:EXT1:STAT ON;:TRI G:SO UR EXT1;:O UTP :EXT1: STAT OFF
or
OUTP:EXT1:STAT ON;
:TRIG:SOUR EXT1;
:OUTP:E XT1:STA T OFF
Notice that the semicolon (;) and colon (:) link commands with in different
subsystems. Only a semicolon (;) is requir ed to link commands at the sa me
level with in the sa me subsystem.
Sending the commands as shown prevents "Settings conflict" errors. The
command settings are not evaluated until the EOL terminator is received
after the last command. If these commands were sent individually (an EOL
terminator after each co mmand), a "Settings conflict" error would occur
because of the coupling betw een OUTP:EXT1 :STA T ON a n d T R IG:SOUR
EXT1.
Terminating
Commands
Suppressing the
End-Of -L i n e
Terminator
A SCPI command string is terminated with a line feed (LF ) a nd/or with an
End Or Identify (EOI) message. The carriage return (CR) is ignored.
Suppressing the end-of-line (EOL) terminator on a command line allows
coupled commands to be sent on separate lines, yet as a single program
statement. I n HP B ASIC programs, the EOL terminator is suppr e ssed by
Chapter 1 Getting Started 29
pla cing a semicol on ( ; ) foll owing the quotation ma rk ( " ) which c loses the
command string:
OUTPUT 70905;"OUTP:E XT1:STAT ON;";
OUTPUT 70905;":TRIG:SOUR EXT1;";
OUTPUT 70905;":OUT P:EXT 1:ST AT OFF "
Since the last command is the end of the command string, the EOL
terminator is not suppressed.
Note In the C language programs contain e d in this manual, there is no end -of-line
terminator to suppre ss a s the c ommands ar e ex ecuted as elements of an
array.
C La nguage
Programs
The C languag e versio ns of the example programs (disk P/N E1429-10 301)
were written for the HP 82335 HP-IB Interface Card using the HP-IB
Command Library for C. Unless otherwise noted, the library functions used
in the programs are compatible with the ANSI C standard.
The following section identifies the system on which the programs were
written, shows how to compile and link the programs, and describes the
structure of an e xa mple program.
System Configuration The C programs were d ev eloped on the following system:
Controller: HP Vectra 386/25 personal computer
(386 processor operated at 25 MHz)
HP-IB Interface Card: HP 82335 HP-IB Interface with
Command Library
Mainframe: HP 75000 Series C
Slot0/Resource Manager: HP E1406 Command Module
HP E1429A/B Logical Address: 40
Instrument Language: SCPI
30 Getting Started Chapter 1
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