Abstract: Disclosed are methods and apparatuses for providing direct measurement delay calibration. An apparatus may include a plurality of delay elements in a loop. The apparatus may also include a controller coupled to the plurality of delay elements. The controller may be configured to cause determining, for a predetermined time period, delay oscillations from the plurality of delay elements in the loop. The controller may also be configured to cause determining, based on the determined delay oscillations, the predetermined time period, and a quantity of the plurality of delay elements, a subset of the plurality of delay elements for delaying an input signal. The controller may also be configured to cause routing the input signal through the subset of the plurality of delay elements.

Abstract: The invention relates to simulating an electronic circuit with an uncharacterized hardware circuit. In one embodiment, a method for modeling a circuit that comprises uncharacterized hardware and a simulation system is disclosed. Uncharacterized hardware is coupled to the simulation system. The simulation system comprises at least one simulation model written with a hardware description language (HDL). An interface module integrates a computer port of the simulation system with HDL-based simulation software. The interface module is coded in a language different from the simulation model.