ELEC4320_final_project

Interface Registers Description

[7:0] control

Bit 0

0 - Disable the module

1 - Enable the module

Other registers can be only modified when this bit is reset

Reset value: 0
Bit 3:1

000 - cosine

001 - sine

010 - tangent

011 - square wave

100 - triangular wave

101 - saw tooth wave

110 - Users' wave(disable DMA)

111 - Users' wave(Enable DMA)

Reset value: 000

[15:0] amplitude

Bit 15:0

Amplitude of output when in triangular wave, and saw tooth wave mode

Lowerbound of domain when in trigonometric function wave mode

[15:0] prescaler

Bit 15:0

Prescaler of input clock when in square wave, triangular wave, saw tooth wave, and Users' wave(Enable DMA)

Upperbound of domain when in trigonometric function wave mode

The upperbound smaller than the lowerbound is supported because of the periodicity.

Cordic

The AXI-Stream IP core for calculating sin and cos

Replace BRAM to save the resource

Showoff understanding of AXI protocal