Sync Pulse Generator

Block: Sync Pulse Generator (sync_gen)

Block Author: Mark Wagner, Suraj Gowda

Document Author: Suraj Gowda, Billy Mallard

Contents Summary Mask Parameters Ports Description

Summary

Generates a sync pulse of an appropriate period for a design.

Mask Parameters

Parameter	Variable	Description
Simulation Accumulation Length	gen_acc_len	The accumulation length that will be used for generation.
FFT Size	fft_size	The size of the FFT.
Simultaneous Inputs (FFT)	fft_simult_inputs	The number of data inputs into the FFT.
Taps in pfb_fir	pfb_fir_taps	The number of PFB filter taps. If your design does not use a pfb_fir, set this to 1.
Reorder Orders	reorder_vec	A vector of the orders of the reorder blocks inside the FFT. In your model, the reorder blocks are in fft/fft_biplex/biplex_cplx_unscrambler. The orders should be displayed under the blocks.
Scale	scale	The amount to scale the sync period by.

Ports

Port	Dir	Data Type	Description
sync_out	out	Boolean	The generated sync pulse.

Description

The sync_gen block computes the sync pulse period as:

This formula is derived in Memo #25.