PoC.misc.FrequencyMeasurement¶

This module counts 1 second in a reference timer at reference clock. This reference time is used to start and stop a timer at input clock. The counter value is the measured frequency in Hz.

Entity Declaration:

  1 2 3 4 5 6 7 8 9 10 11 12 13 entity misc_FrequencyMeasurement is generic ( REFERENCE_CLOCK_FREQ : FREQ := 100 MHz ); port ( Reference_Clock : in std_logic; Input_Clock : in std_logic; Start : in std_logic; Done : out std_logic; Result : out T_SLV_32 ); end entity;