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228 Agilent Signal Generators Programming Guide
Creating and Downloading Waveform Files
Commands for Downloading and Extracting Waveform Data
SCPI Command Line Structure
The signal generator expects to see waveform data as block data (binary files). The IEEE standard
488.2–1992 section 7.7.6 defines block data. The following example shows how to structure a SCPI
command for downloading waveform data (#ABC represents the block data):
:MMEM:DATA "<file_name>",#ABC
"<file_name>" the I/Q file name and file path within the signal generator
# indicates the start of the data block
A the number of decimal digits present in B
B a decimal number specifying the number of data bytes to follow in C
C the actual binary waveform data
The following example demonstrates this structure:
WFM1: the file path
my_file the I/Q file name as it will appear in the signal generator’s memory catalog
# indicates the start of the data block
3 B has three decimal digits
240 240 bytes of data to follow in C
12%S!4&07#8g*Y9@7... the ASCII representation of some of the binary data downloaded to the
signal generator, however not all ASCII values are printable
Commands and File Paths for Downloading and Extracting Waveform Data
NOTE Filenames should not exceed 23 characters.
You can download or extract waveform data using the commands and file paths in the following
tables:
• Table 5- 7, “Downloading Unencrypted Files for No Extraction (Extraction allowed on the Agilent
MXG Only),” on page 229
• Table 5- 8, “Downloading Encrypted Files for No Extraction (Extraction allowed on the Agilent
MXG Only),” on page 229
• Table 5- 9, “Downloading Unencrypted Files for Extraction,” on page 229
• Table 5- 11, “Downloading Encrypted Files for Extraction,” on page 231
• Table 5- 12, “Extracting Encrypted Waveform Data,” on page 231
file_name
A
C
MMEM:DATA “WFM1:my_file”,#3 240 12%S!4&07#8g*Y9@7...
B
- Programming Guide 1
- (With Remote Operation 1
- Contents 3
- interfaces: 10
- Interfaces 11
- Agilent IO Libraries Suite 13
- Using the Web Browser 19
- Agilent MXG Web Server On 22
- ESG/PSG Web Server On 22
- Preferences 27
- Getting Help (Agilent MXG) 28
- Getting Help (ESG/PSG) 28
- Troubleshooting 30
- Error Messages 31
- Error Message Types 32
- 2 Using IO Interfaces 33
- Using IO Interfaces 34
- Using GPIB 34
- Set Up the GPIB Interface 35
- Verify GPIB Functionality 36
- GPIB Interface Terms 37
- Using LAN 39
- Setting Up the LAN Interface 40
- Setting up Private LAN 44
- Verifying LAN Functionality 44
- Using VXI–11 50
- Using Sockets LAN 51
- Using Telnet LAN 52
- Figure 2-7 Telnet 2000 Window 55
- Using FTP 56
- Figure 2-8 FTP Screen 57
- Using LXI 58
- Character Format Parameters 74
- If You Have Problems 74
- Using USB (Agilent MXG) 77
- Setting Up the USB Interface 78
- 3 Programming Examples 81
- Running C++ Programs 82
- Running C# Examples 83
- Running Basic Examples 83
- Running Java 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 160
- Overview 167
- Status Register Bit Values 176
- Determining What to Monitor 177
- Deciding How to Monitor 177
- Status Register SCPI Commands 179
- Status Byte Group 183
- Status Byte Register 184
- Status Groups 185
- Standard Event Status Group 186
- STATus:OPERation:CONDition? 189
- Register) to 1 199
- Condition Register) to 1 205
- Condition register) to 1 208
- *RST sets this 210
- *RST sets this bit to zero 210
- Understanding Waveform Data 215
- LSB and MSB (Bit Order) 216
- 1 0 1 1 0 1 1 1 217
- 1 1 1 0 1 0 0 1 217
- Byte Swapping 218
- DAC Input Values 218
- 2’s Complement Data Format 221
- I and Q Interleaving 221
- Waveform Structure 223
- Waveform Phase Continuity 225
- Waveform Memory 228
- Memory Allocation 230
- Memory Size 232
- Waveform Data Encryption 234
- File Transfer Methods 235
- SCPI Command Line Structure 236
- FTP Procedures 240
- Creating Waveform Data 243
- Downloading Waveform Data 249
- Using Simulation Software 250
- Playing the Waveform 256
- Verifying the Waveform 257
- Using the Download Utilities 258
- E443xB Data Format 260
- Marker 3 and 4 bits 261
- C++ Programming Examples 263
- MATLAB Programming Examples 285
- HP Basic Programming Examples 305
- Mode Setup 313
- Signal Generator Memory 317
- Checking Available Memory 321
- Bit File Type Data 324
- Start block data 325
- Binary File Type Data 327
- User File Size 328
- Downloading User Files 332
- Modifying User File Data 338
- 2499 only) 343
- Understanding PRAM Files 347
- Viewing the PRAM Waveform 349
- PRAM File Size 350
- Extracting a PRAM File 357
- Modifying PRAM Files 359
- Data Requirements 360
- Data Limitations 361
- Save and Recall SCPI Commands 365
- User File Download Problems 380
- PRAM Download Problems 381
- Numerics 385
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