As far as digital circuits are concerned, three things should be determined in sequence at first.
①Make sure that all power values meet the design requirements. Some systems with multiple power supplies may require certain specifications for the sequence and speed of some power supplies.
②Confirm that all clock signal frequencies work normally and there is no non-monotonic problem on the signal edge.
③Confirm whether reset signal meets specification requirements.
If all these are normal, the chip should send the first cycle signal. Next, debug according to the system operation principle and bus protocol.
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