/neopixel_led_controller_max10

NeoPixel LED Controller | NeoPixel LED 控制器 | 基於MAX10 FPGA的音樂全彩光立方LED控制器

Primary LanguageVerilog

NeoPixel LED Controller

NeoPixel LED Controller based on MAX10 FPGA.

Main Features

  • 4-wire SPI interface (SCLK, MOSI, MISO, CS)
  • High refresh rate (500fps@8x8x8, 125fps@16x16x16)
  • 16 parallel output channels (up to 256 LEDs per channel)
  • Each output channel has a programmable circular linked list
  • Each output channel has a programmable waveform generator (T0H, T0L, T1H, T1L)

Pinout

Control I/O FPGA Pin Data I/O FPGA Pin Data I/O FPGA Pin
clk_i PIN_J5 neopixel_code_o[7] PIN_R5 neopixel_code_o[15] PIN_C8
rst_n_i PIN_P15 neopixel_code_o[6] PIN_L7 neopixel_code_o[14] PIN_B7
dc_i PIN_R14 neopixel_code_o[5] PIN_P4 neopixel_code_o[13] PIN_D7
spi_sclk_i PIN_P12 neopixel_code_o[4] PIN_L6 neopixel_code_o[12] PIN_E7
spi_mosi_i PIN_R11 neopixel_code_o[3] PIN_R3 neopixel_code_o[11] PIN_B6
spi_cs_n_i PIN_R9 neopixel_code_o[2] PIN_M5 neopixel_code_o[10] PIN_A7
spi_miso_o PIN_P9 neopixel_code_o[1] PIN_P3 neopixel_code_o[9] PIN_A5
- neopixel_code_o[0] PIN_M4 neopixel_code_o[8] PIN_B4
  • SPI slave mode: F_MAX=20MHz, CPOL=0, CPHA=0, MSB first

Commands

CONF_WR

Inst / Para D/C R/W D7 D6 D5 D4 D3 D2 D1 D0 HEX
CONF_WR 0 W 0 0 1 0 1 0 1 0 2Ah
1st Param 1 W D7 D6 D5 D4 D3 D2 D1 D0
2nd Param 1 W D7 D6 D5 D4 D3 D2 D1 D0
3rd Param 1 W D7 D6 D5 D4 D3 D2 D1 D0
4th Param 1 W D7 D6 D5 D4 D3 D2 D1 D0
5th Param 1 W D7 D6 D5 D4 D3 D2 D1 D0
6th Param 1 W D7 D6 D5 D4 D3 D2 D1 D0
  • 1st Param: T0H time (10 ns), range: 0 - 255
  • 2nd Param: T0L time (10 ns), range: 0 - 255
  • 3rd Param: T1H time (10 ns), range: 0 - 255
  • 4th Param: T1L time (10 ns), range: 0 - 255
  • 5th Param: Channel length, range: 0 - 255
  • 6th Param: Channel count, range: 0 - 15

ADDR_WR

Inst / Para D/C R/W D7 D6 D5 D4 D3 D2 D1 D0 HEX
ADDR_WR 0 W 0 0 1 0 1 0 1 1 2Bh
1st Param 1 W D7 D6 D5 D4 D3 D2 D1 D0
... 1 W D7 D6 D5 D4 D3 D2 D1 D0
Nth Param 1 W D7 D6 D5 D4 D3 D2 D1 D0

  • 1st Param: Channel 0, the next pointer of the 1st color data, range: 0 - 255

  • 2nd Param: Channel 0, the next pointer of the 2nd color data, range: 0 - 255

  • ...

  • Nth Param: ...

  • N_MAX = 256 x 16 = 4096

DATA_WR

Inst / Para D/C R/W D7 D6 D5 D4 D3 D2 D1 D0 HEX
DATA_WR 0 W 0 0 1 0 1 1 0 0 2Ch
1st Param 1 W D7 D6 D5 D4 D3 D2 D1 D0
... 1 W D7 D6 D5 D4 D3 D2 D1 D0
Nth Param 1 W D7 D6 D5 D4 D3 D2 D1 D0

  • 1st Param: Channel 0, the 1st color data, byte 2, range: 0 - 255

  • 2nd Param: Channel 0, the 1st color data, byte 1, range: 0 - 255

  • 3rd Param: Channel 0, the 1st color data, byte 0, range: 0 - 255

  • 4th Param: Channel 0, the 2nd color data, byte 2, range: 0 - 255

  • ...

  • Nth Param: ...

  • N_MAX = 256 x 16 x 3 = 12288

INFO_RD

Inst / Para D/C R/W D7 D6 D5 D4 D3 D2 D1 D0 HEX
INFO_RD 0 W 0 0 1 1 1 0 1 0 3Ah
1st Data 1 R 0 0 0 0 0 0 0 0 00h
2nd Data 1 R D7 D6 D5 D4 D3 D2 D1 D0
3rd Data 1 R D7 D6 D5 D4 D3 D2 D1 D0
4th Data 1 R D7 D6 D5 D4 D3 D2 D1 D0
5th Data 1 R D7 D6 D5 D4 D3 D2 D1 D0
6th Data 1 R D7 D6 D5 D4 D3 D2 D1 D0
7th Data 1 R D7 D6 D5 D4 D3 D2 D1 D0
7th Data 1 R D7 D6 D5 D4 D3 D2 D1 D0
  • 1st Data: Dummy byte, 0x00
  • 2nd Data: RTL revision, major: {D7..D4}, minor: {D3..D0}
  • 3rd Data: T0H time (10 ns), range: 0 - 255
  • 4th Data: T0L time (10 ns), range: 0 - 255
  • 5th Data: T1H time (10 ns), range: 0 - 255
  • 6th Data: T1L time (10 ns), range: 0 - 255
  • 7th Data: Channel length, range: 0 - 255
  • 8th Data: Channel count, range: 0 - 15

Preparing

Obtain the source

git clone https://github.com/redchenjs/neopixel_led_controller_max10.git

Update an existing repository

git pull

Building

  • Quartus Prime 21.1.0 Lite Edition

Music Light Cube

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