Creating and Downloading User-Data Files

 

 

 

 

 

 

 

 

 

 

 

 

User File Data (Bit/Binary) Downloads (E4438C and E8267D)

C

 

 

the file data in bytes

 

 

 

:MEM:DATA

“bin:my_

 

file”,#324012%S!4&07#8g*Y9@7...

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

file location file_name A B

C

bin:

 

 

 

the location of the file within the signal generator file system

my_file

 

 

 

the data file name as it will appear in the signal generator’s memory

 

 

 

 

catalog

 

 

 

#

 

 

 

indicates the start of the block data

3

 

 

 

B has three decimal digits

 

 

 

240

 

 

 

240 bytes (1,920 bits) of data to follow in C

12%S!4&07#8g*Y9@7... the ASCII representation of some of the block data (binary data) downloaded to the signal generator, however not all ASCII values are printable

In actual use, the block data is not part of the command line as shown above, but instead resides in a binary file on the PC/UNIX. When the program executes the SCPI command, the command line notifies the signal generator that it is going to receive block data of the stated size and to place the file in the signal generator file directory with the indicated name. Immediately following the command execution, the program downloads the binary file to the signal generator. This is shown in the following section, “Command Format in a Program Routine”

Some commands are file location specific and do not require the file location as part of the file name. An example of this is the bit file SCPI command shown in “Command for Bit File Downloads” on page 299.

Command Format in a Program Routine

This section demonstrates the use of the download SCPI command within the confines of a C++ program routine. The following code sends the SCPI command and downloads user file data to the signal generator’s Binary memory catalog (directory).

Line

Code—Download User File Data

1int bytesToSend;

2bytesToSend = numsamples;

3char s[20];

4char cmd[200];

5sprintf(s, "%d", bytesToSend);

6sprintf(cmd, ":MEM:DATA \"BIN:FILE1\", #%d%d", strlen(s), bytesToSend);

7iwrite(id, cmd, strlen(cmd), 0, 0);

8iwrite(id, databuffer, bytesToSend, 0, 0);

9iwrite(id, "\n", 1, 1, 0);

Agilent N518xA, E8663B, E44x8C, and E82x7D Signal Generators Programming Guide

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Agilent Technologies E8663B, N5181A/82A, N5183A MXG manual Memdata, Command Format in a Program Routine

N5183A, N5183A MXG, E8663B, N5181A/82A specifications

Agilent Technologies is renowned for its innovative solutions in electronic test and measurement equipment. Among its offerings are several signal generators including the N5181A, N5182A, E8663B, and N5183A MXG. These models are distinguished not only by their performance but also by their versatility across various applications in communications, aerospace, and electronics.

The Agilent N5181A and N5182A, part of the MXG family, are highly versatile signal generators known for their exceptional frequency performance and flexibility. The N5181A operates from 100 kHz to 6 GHz, while the N5182A extends that range up to 12 GHz. They provide high fidelity signals with low phase noise, making them ideal for the development and testing of RF components and systems. These generators support a wide variety of modulation formats, including AM, FM, PM, and pulse modulation, catering to diverse application needs.

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The N5183A MXG signal generator enhances the lineup with frequency coverage up to 6 GHz and advanced capabilities. It integrates various modulation capabilities while ensuring high signal integrity. Its architecture is tailored for both production test environments and research applications, providing users with the flexibility to adapt to changing testing requirements.

Common characteristics across these models include a user-friendly interface that simplifies configuration and operation. They are often equipped with LAN and USB interfaces for easy remote control and integration into automated test systems. The robustness of these generators allows them to perform reliably in challenging environments, making them essential tools in laboratories, manufacturing floors, and field testing scenarios.

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