Poisson process generator. The time between each pair of consecutive pulses has an exponential distribution with desired rate. Тhе auxiliary pseudo-random uniform generator is based on 32-bit LFSR. The deign is tested on MICROSEMI IGLOO2 FPGA.
Histogram of the number of clocks between output pulses:
Result of simulation for the rate of one pulse per 16 clocks (parameter LN2_PERIOD=16):