Agilent Technologies E2094S Guide de l'utilisateur Page 89
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Programming via GPIB and VXI 4
Agilent VISA User’s Guide 89
Using viIn and viOut
When using the viIn and viOut high-level memory functions to
program to the device registers, all you need to specify is the session
identifier, address space, and the offset of the register. Memory mapping
is done for you. For example, in this function:
viIn32(vi, space, offset, val32);
vi is the session identifier and offset is used to indicate the offset of the
memory to be mapped. offset is relative to the location of this device's
memory in the given address space. The space parameter determines
which memory location to map the space. Valid space values are:
• VI_A16_SPACE - Maps in VXI/MXI A16 address space
• VI_A24_SPACE - Maps in VXI/MXI A24 address space
• VI_A32_SPACE - Maps in VXI/MXI A32 address space
viOut16(vi, space, offset,
val16)
;
Writes 16 bits of data to the specified
offset.
viOut32
(vi, space, offset,
val32);
Writes 32 bits of data to the specified
offset.
viMoveIn8(vi, space, offset,
length, buf8);
Moves an 8-bit block of data from the
specified offset to local memory.
viMoveIn16(vi, space, offset,
length, buf16)
;
Moves a 16-bit block of data from the
specified offset to local memory.
viMoveIn32(vi, space, offset,
length, buf32)
;
Moves a 32-bit block of data from the
specified offset to local memory.
viMoveOut8(vi, space, offset,
length, buf8);
Moves an 8-bit block of data from local
memory to the specified offset.
viMoveOut16(vi, space, offset,
length, buf16)
;
Moves a 16-bit block of data from local
memory to the specified offset.
viMoveOut32
(vi, space, offset,
length, buf32);
Moves a 32-bit block of data from local
memory to the specified offset.
Table 20 Summary of High-Level Memory Functions
- Agilent VISA 1
- User’s Guide for IO 1
- Libraries Suite 15.5 1
- Agilent VISA User’s Guide 3
- 4 Agilent VISA User’s Guide 4
- Agilent VISA User’s Guide 5 5
- 6 Agilent VISA User’s Guide 6
- Introduction 7
- What’s in This Guide? 8
- VISA Overview 9
- VISA Support 10
- VISA Documentation 10
- Introduction 1 11
- Agilent VISA User’s Guide 11 11
- Contacting Agilent 12
- Agilent Technologies 13
- Linking to VISA Libraries 14
- Sample VISA Program (C/C++) 15
- C/C++ Sample Program Contents 17
- Format Conversion Commands 19
- Numeric Arrays 19
- Steps to Running the Program 20
- Sample Program Source Code 21
- Sample Program Contents 23
- 24 Agilent VISA User’s Guide 24
- Logging Error Messages 25
- Programming with VISA 27
- VISA Resources and Attributes 28
- VISA Attributes 29
- Using Sessions 30
- Opening a Session 31
- 3 Programming with VISA 32
- Addressing a Session 33
- Programming with VISA 3 35
- Agilent VISA User’s Guide 35 35
- Closing a Session 37
- Searching for Resources 37
- Sending I/O Commands 40
- Using Formatted I/O 41
- Using Non-Formatted I/O 44
- Using Events and Handlers 46
- Events that can be Enabled 47
- Agilent VISA User’s Guide 49 49
- Agilent VISA User’s Guide 51 51
- Agilent VISA User’s Guide 53 53
- Using the Callback Method 54
- Installing Handlers 55
- Using the Queuing Method 62
- Enabling Events 63
- Trapping Errors 68
- Exception Events 69
- Using Locks 74
- VISA Lock Types 75
- General Interface Information 80
- GPIB Interfaces Overview 81
- 82350 GPIB Card #1 82
- Windows PC 82
- GPIB InstrumentsGPIB Cable 82
- 82350 GPIB Card #2 82
- Agilent VISA User’s Guide 83 83
- VXI Interfaces Overview 84
- GPIB-VXI Interfaces Overview 85
- GPIB-VXI (E1406A) Interfaces 86
- Programming the Registers 88
- Using viIn and viOut 89
- Using viMoveIn and viMoveOut 90
- Functions 91
- Mapping Memory Space 95
- Sample: Using viPeek16 96
- Using Low-Level viPeek/viPoke 100
- Using High-Level viIn/viOut 101
- Sample: Using VXI Memory I/O 102
- Memory I/O Services 106
- MEMACC Attribute Descriptions 109
- VI_ATTR_WIN_ACCESS Settings 113
- Setting the VXI Trigger Line 114
- 116 Agilent VISA User’s Guide 116
- Programming via GPIB and VXI 116
- Programming via LAN 117
- Connection 118
- Gateway Operation 119
- 5 Programming via LAN 120
- Programming via USB 127
- USB Interfaces Overview 128
- 6 Programming via USB 130
- Glossary 131
- Windows notification area 143
- 144 Agilent VISA User’s Guide 144
- Agilent VISA User’s Guide 145 145
- 146 Agilent VISA User’s Guide 146
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