Appendix C: P661
6 General-Purpose Logic P robe Information
Connecting the Probe to Your Circuit
Attach the probe to the circuit using the appropriate connectors and adapters. Select the best method for your needs,
and then proceed to Setting up the Probe.
To set and view the digital channel parameters, do the following:
Push the D15–D0 button.
The parameters listed below can be set on each digital channel:
Threshold voltage and vertical position (the default threshold setting is 1.4 V )
Signal height and position (set once for all 16 channels)
Channel label
To set and view bus characteristics, do the following:
Push the B1 to B4 buttons.
The setup screens allow you to set and view various bus characteristics.
Parallel bus setup information is resident on mixed signal oscilloscope (MSO) models. However, for other buses such as SPI
and I2C, you must have the appropriate option. (See page 60, Setting Up a Serial or Parallel Bus.)
Functional Check
Logic activity immediately displays on all connected, active channels. If you do not see an active signal:
1. Push the Trigger button.
2. Select Edge for trigger type.
3. Select the channel that you are setting up as the source.
4. On MSO4000B Series instruments, push the Autoset button.
If you do not see an active signal, try another probe channel (or analog probe) to verify circuit a ctivity at the test point.
200 MSO4000B and DPO 4000B Series Oscilloscopes User Manual
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