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224 Agilent Signal Generators Programming Guide

Creating and Downloading Waveform Files

Waveform Memory

For more information on default cluster sizes for FAT file structures, refer to Table 5- 3 on page 224

and to http://support.microsoft.com/.

Non–Volatile Memory (ESG/PSG)

The ESG/PSG signal generators allocate non–volatile memory in blocks of 512 bytes. For files less

than or equal to 512 bytes, the file uses only one block of memory. For files larger than 512 bytes,

the signal generator allocates additional memory in multiples of 512 byte blocks. For example, a file

that has 21,538 bytes consumes 43 memory blocks (22,016 bytes).

Memory Size

The amount of available memory, volatile and non–volatile, varies by option and the size of the other

files that share the memory. When we refer to waveform files, we state the memory size in samples

(one sample equals five bytes). The ESG and PSG baseband generator (BBG) options (001, 002, 601,

or 602) and the Agilent MXG baseband generator (BBG) Option (651, 652, and 654) contain the

waveform playback memory. Refer to Tables 5- 4 on page 225 through Table 5- 6 on page 226 for the

maximum available memory.

Table 5-3 Drive Size (logical volume)

Drive Size (logical volume) Cluster Size (Bytes)

(Minimum Allocation Size)

0 MB – 15 MB 4K

16 MB – 127 MB 2K

128 MB – 255 MB 4K

256 MB – 511 MB 8K

512 MB – 1023 MB 16K

1024 MB – 2048 MB 32K

2048 MB – 4096 MB 64K

4096 MB – 8192 MB 128K

8192 MB – 16384 MB 256K

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