Agilent Technologies E4438C Manuál s instrukcemi stáhnout pdf (Strana 195)

Downloading and Using Files

Data Transfer Troubleshooting

Chapter 4 189

Data Transfer Troubleshooting

This section is divided by the following data transfer method:

“Direct PRAM Download Problems” on page 189

“User File Download Problems” on page 191

“User FIR Filter Coefficient File Download Problems” on page 195

“ARB Waveform Data Download Problems” on page 196

Each section contains the following troubleshooting information:

• a list of symptoms and possible causes of typical problems encountered while downloading

data to the signal generator

• reminders regarding special considerations, file requirements, and data limitations

• tips on creating data, transferring data, data application and memory usage

Direct PRAM Download Problems

Table 4-3 Direct-to-PRAM Download Trouble - Symptoms and Causes

Symptom Possible Cause

The transmitted pattern is

interspersed with random,

unwanted data.

Pattern reset bit not set.

Insure that the pattern reset bit (bit 7, value 128) is set on

the last byte of your downloaded data.

ERROR -223, Too much data

PRAM download exceeds the size of PRAM memory.

Either use a smaller pattern or get more memory by

ordering the appropriate hardware option.

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Agilent Technologies E4438C Manuál s instrukcemi Strana 195