SignalTap Logic Analyzer waveform display - SignalTap Logic Analyzer waveform display Hello, I am using the SignalTap II logic analyzer on Quartus Prime Version : 18.1.1 Build 646 04/11/2019 SJ Standard Edition. I want to know if there is any significance of the background color in the waveform data display. I provide two BMPs. The file named stp1_UT_ADC_DATA.bmp has a white background. The file named stp1_10_27_11_59.bmp has a blue background. Thank you. Ben Martinez Replies: Re: SignalTap Logic Analyzer waveform display The blue background indicates this is for data captured from a power-up trigger (as opposed to the normal run-time trigger).