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