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As illustrated in the above figure, input a 1KHz sine wave from CH1 and a 1KHz square wave from CH2.
Follow the above steps to set up the Math menu, and observe the subtracted waveform as shown in the figure below.
Those in pink are added waveforms.
6.11
Example 11: Measuring Data Propagation Delay
When you doubt that there appear instabilities in a serial data propagation control circuit, you can set the
oscilloscope to measure the propagation delay between the enable signal and the transfer data.
To set the propagation delay measurement, follow the steps below.
1.
Connect two oscilloscope probes respectively to the CS (chip-select) pin and the DATA pin on the chip.
2.
Set the Probe option attenuation to 10X for both probes.
3.
Open CH1 and CH2 at the same time, both with the attenuation of 10X.
4.
Push the AUTOSET button to trigger a stable waveform display.
5.
Adjust the horizontal and vertical controls to optimize the waveform display.
