SPI Signal Shape Issue

[AE104]

Hello,

I am try to control an external DAC system with the SPI interface. The clock signal shape looks like the attached file. I didn't figure out the meaning of the signal. Yellow is the clock signal and the blue is CS signal.

[AE104]

This is the latest measurement that I have.

[AScha.3]

again sample rate much too low. 500 ks - how you do this ?

+

or do you make "SINGLE" shot and then turn around the timing? this could make such pictures.

show a measurement without any change or "adjustment" after the single shot.

[AScha.3]

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[AE104]

Sorry for late reply. Honestly, I don't know, for example now the sampling rate of the oscilloscope is 1 GSa/s.

You're right. I captured only this zoom in figure. Before zoomed in, it was square wave.

[AE104]

Sure, thank you @AScha.3​ , @Community member​ , and @Community member​ for your comments!