Agilent Technologies E8257D PSG Instrukcja Użytkownika Strona 285
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Agilent N516xA, N518xA, E8663B, E44x8C, and E82x7D Signal Generators Programming Guide 273
Creating and Downloading Waveform Files
Programming Examples
[status, status_description] = agt_sendcommand(io, 'SOURce:FREQuency 20000000000');
[status, status_description] = agt_sendcommand(io, 'POWer 0');
% define the ARB sample clock for playback
sampclk = 40000000;
% download the iq waveform to the PSG baseband generator for playback
[status, status_description] = agt_waveformload(io, IQData, 'pulsepat', sampclk, 'play', 'no_normscale',
Markers);
% turn on RF output power
[status, status_description ] = agt_sendcommand( io, 'OUTPut:STATe ON' )
You can test your program by performing a simulated plot of the in–phase modulation signal in
Matlab (see Figure 5- 2 on page 273). To do this, enter plot (i) at the Matlab command prompt.
Figure 5-2 Simulated Plot of In–Phase Signal
The following additional Matlab M–file pulse programming examples are also available on the
Documentation CD–ROM for your Agilent MXG and PSG signal generator:
- Agilent Technologies 1
- E8257D PSG Signal Generators 1
- Programming Guide 1
- Change Record 2
- Contents 10
- Documentation Overview 11
- interfaces: 14
- Interfaces 16
- Agilent IO Libraries Suite 18
- Programming Languages 22
- Using the Web Browser 23
- Agilent MXG Web Server On 24
- ESG/PSG/E8663B Web Server On 24
- Preferences 29
- Getting Help (Agilent MXG) 30
- Getting Help (ESG/PSG/E8663B) 30
- Troubleshooting 31
- Error Messages 32
- Error Message Types 33
- 2 Using IO Interfaces 35
- Using IO Interfaces 36
- Using GPIB 36
- Set Up the GPIB Interface 37
- Verify GPIB Functionality 38
- GPIB Interface Terms 39
- Using LAN 41
- Setting Up the LAN Interface 42
- Setting up Private LAN 46
- Verifying LAN Functionality 46
- Using VXI–11 51
- Using Sockets LAN 52
- Using Telnet LAN 53
- Figure 2-7 Telnet 2000 Window 56
- Using FTP 57
- Figure 2-8 FTP Screen 58
- Using LXI 59
- Character Format Parameters 75
- If You Have Problems 75
- Using USB (Agilent MXG) 78
- Setting Up the USB Interface 79
- 3 Programming Examples 81
- Running C++ Programs 82
- Running C# Examples 83
- Running Basic Examples 83
- Running Java Examples 84
- Running MATLAB Examples 84
- Local Function 88
- Clear Function 88
- Output Function 89
- Programming Examples 100
- Figure 3-1 121
- VXI-11 Programming 124
- Sockets LAN Programming and C 128
- Queries for Lan Using Sockets 131
- Before Using the Examples 154
- Overview 161
- Status Register Bit Values 172
- Determining What to Monitor 173
- Deciding How to Monitor 173
- Status Register SCPI Commands 175
- Status Byte Group 179
- Status Byte Register 180
- Status Groups 181
- Standard Event Status Group 182
- STATus:OPERation:CONDition? 185
- Register) to 1 195
- Condition Register) to 1 201
- Condition register) to 1 204
- Understanding Waveform Data 211
- LSB and MSB (Bit Order) 212
- 1 0 1 1 0 1 1 1 213
- 1 1 1 0 1 0 0 1 213
- Byte Swapping 214
- DAC Input Values 214
- 2’s Complement Data Format 217
- I and Q Interleaving 217
- Waveform Structure 219
- Waveform Phase Continuity 221
- Waveform Memory 224
- Memory Allocation 226
- Memory Size 228
- Non–Volatile (NVWFM) Memory 230
- Option Size 230
- E4438C and E8267D 230
- Standard 3 MSa (15 MB) 230
- File Transfer Methods 231
- SCPI Command Line Structure 232
- FTP Procedures 236
- Creating Waveform Data 239
- Downloading Waveform Data 245
- Using Simulation Software 246
- Playing the Waveform 252
- Verifying the Waveform 253
- Using the Download Utilities 254
- E443xB Data Format 256
- Marker 3 and 4 bits 257
- C++ Programming Examples 259
- —Big and Little Endian Order 259
- _iq_c++.txt.” 259
- MATLAB Programming Examples 280
- _iq_ml.m.” 280
- HP Basic Programming Examples 292
- Mode Setup 300
- Signal Generator Memory 303
- Checking Available Memory 307
- Bit File Type Data 310
- Start block data 311
- Binary File Type Data 313
- User File Size 314
- Downloading User Files 318
- Modifying User File Data 324
- 2499 only) 329
- Understanding PRAM Files 333
- Viewing the PRAM Waveform 335
- PRAM File Size 336
- Extracting a PRAM File 342
- Modifying PRAM Files 344
- Data Requirements 345
- Data Limitations 345
- Save and Recall SCPI Commands 348
- User File Download Problems 363
- PRAM Download Problems 364
- Numerics 367
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