Intel® Quartus® Prime Standard Edition User Guide: Debug Tools

ID 683552
Date 9/24/2018
Public
Document Table of Contents

5.4.5.1.3. Storage Qualification with Post-Fill Count Value Less than m

Real data acquisition of the previous scenario

Figure 72. Storage Qualification with Post-Fill Count Value Less than m (Acquisition Successfully Completes)The data capture finishes successfully. It uses a buffer with a sample depth of 64, m = n = 10 , and post-fill count = 5.
Figure 73. Storage Qualification with Post-Fill Count Value Greater than m (Acquisition Indefinitely Paused)The logic analyzer pauses indefinitely, even after a trigger condition occurs due to a stop_store condition. This scenario uses a sample depth of 64, with m = n = 10 and post-fill count = 15.
Figure 74. Waveform After Forcing the Analysis to Stop

The combination of using counters, Boolean and relational operators in conjunction with the start_store and stop_store commands can give a clock-cycle level of resolution to controlling the samples that are written into the acquisition buffer.