Teledyne-lecroy Serial Data Debug Solutions Manual do Utilizador descarregar pdf (Página 195)

Operator's Manual

919586 RevA

195

Troubleshooting Storage, Peripherals, and Interconnects Issues

Polarity Correction

It is important to provide a high-quality signal when using the Serial Decode package. If bits cannot be

interpreted correctly the decode, of course, is bad.

If the signal is captured with the wrong polarity, it can easily be corrected later. If the capture is two single-

ended waveforms, then just try both subtraction orders; one of them is correct. If the signal is captured using a

differential probe, invert it (if necessary) using the Basic Math Invert operator as follows.

You can also invert your signal directly from the Channel dialog. Just touch the Invert checkbox on the right side

of the dialog.

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Teledyne-lecroy Serial Data Debug Solutions Manual do Utilizador Página 195