User manual

PicoScope 6 User's Guide 77

Select the protocol you wish to use. A Settings panel for the selected channel will

then appear below the table in the dialog.

Settings panel

The settings panel shows all the adjustable settings for the selected channel. The

options available depend on the protocol selected: see Common settings and

Protocol-specific settings .

Information panel

You do not need to take action on the messages in this panel. If the number of

samples is too small then PicoScope will automatically adjust the capture settings to

improve the signal quality. If the number of samples is larger than necessary, this is

harmless and no adjustment will be made.

6.5.4.1

Common settings

These settings apply to all serial data formats.

Refresh. When you have entered the necessary information, PicoScope

analyzes the incoming signal and chooses the best settings for serial decoding. If

PicoScope is unable to decode the data, try improving the signal quality and then

click the Refresh button to analyze the signal again. For best results, click the

Auto Setup button in the Capture Setup toolbar in the main PicoScope window

before entering serial decoding mode. This will ensure that the signal is

captured with enough detail for accurate decoding.

Display. Choose where you want to display the data: In View, In Window , or

both.

In View shows the data in logic-analyzer style, on the same time axis as the

analog waveform.

Hover the mouse pointer over any decoded packet to display its contents.

Click-and-drag the decoded data up or down the scope view.

If the In Window display is visible, double-click on any packet to

highlight it in the table.

In Window displays the decoded data in a table in the serial data window ,

with advanced search and filtering functions.

6.5.4.2 Protocol-specific settings

CAN Bus settings

PicoScope can decode either the CAN H or the CAN L signal. Select which one you

are using in the Protocols table.

Threshold. A voltage halfway between the high and low logic levels. If you are not

sure, set this to halfway between the maximum and minimum voltages that you

see on the waveform.

Baud Rate. The speed of data transmission in symbols per second. Set this to

match the speed of the data bus.

I²C settings

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