Made a few mistakes, sorry...
Code:
'****************************************************************
'* Name : NeoPixel
'* Author : Michel Jasmin & The Signal Path dot com BLOG
'* Notice : Ref: The Signal Path dot com BLOG
'* : Tutorial on Programming the NeoPixel (WS2812) RGB LEDs
'* : http://thesignalpath.com/blogs/2014/07/14/watcheditdeletetutorial-on-programming-the-neopixel-ws2812-rgb-leds-equipment-giveaway/
'* Date : 2014-08-13
'* Version : 1.0
'* Notes :
'* :
'****************************************************************
'PIC18F25K22 @40MHz
#CONFIG
__CONFIG _CONFIG1H, _FOSC_HSHP_1H & _PLLCFG_OFF_1H & _PRICLKEN_ON_1H & _FCMEN_ON_1H & _IESO_ON_1H
__CONFIG _CONFIG2H, _WDTEN_OFF_2H
__CONFIG _CONFIG3H, _PBADEN_ON_3H & _CCP2MX_PORTB3_3H & _MCLRE_EXTMCLR_3H
__CONFIG _CONFIG4L, _STVREN_OFF_4L & _LVP_OFF_4L & _XINST_OFF_4L
__CONFIG _CONFIG5L, _CP0_ON_5L & _CP1_ON_5L & _CP2_ON_5L & _CP3_ON_5L
__CONFIG _CONFIG5H, _CPB_ON_5H & _CPD_ON_5H
#ENDCONFIG
DEFINE OSC 40
DEFINE NO_CLRWDT 1 ' Don't waste cycles clearing WDT
'------------ ALIAS -------------------------
LedPin VAR LATC.3
NeoPin VAR LATC.5
'------------ Const -------------------------
NEO_NUM CON 60
CR CON 13
LF CON 10
'------------ Variables -------------------------
NeoGreen VAR BYTE[NEO_NUM]
NeoBlue VAR BYTE[NEO_NUM]
NeoRed VAR BYTE[NEO_NUM]
NeoPixel VAR BYTE
BitCount VAR BYTE
TempW VAR WORD
'Flags
AppFlags VAR BYTE
DataBit VAR AppFlags.0
'------------------------ Initialization -------------------------------
Clear ' Clear RAM before entry
TRISC.3 = 0 'Led Pin
TRISC.5 = 0 'NeoPin
TRISC.6 = 1 'TX1
TRISC.7 = 1 'RX1
'The serial port is used only for debugging purpose.
RCSTA = $90 ' Enable serial port & continuous receive
TXSTA = $24 ' Enable transmit, BRGH = 1
SPBRG = 17 ' 9600 Baud @ 40 MHz -0.03%
SPBRGH = 4
BAUDCON.3 = 1 ' Enable 16 bit baudrate generator
PAUSE 100
HSEROUT [CR,LF,CR,LF,"Test NeoPixel v 18",CR,LF]
'Blink a LED just to say: Hello, I'm alive!
LedPin = 0
FOR TempW = 0 TO 4
TOGGLE LedPin
PAUSE 250
NEXT
LedPin = 0
DataBit = 0
GOSUB NeoInit
'------------ Main program -------------------------
Main:
'For testing purpose:
'DataBit = 1
'GOSUB NeoBit
'GOTO Main
GOSUB NeoDraw
GOSUB NeoRotate
PAUSE 25
GOTO Main
END
NeoBit:
IF DataBit = 1 THEN
'400ns pulse required
NeoPin = 1
'3 nop = 500ns @ 32MHz
'2 nop = 376ns @ 32MHz
'2 nop = 300ns @ 40MHz
'3 nop = 400ns @ 40MHz
ASM
nop
nop
nop
ENDASM
NeoPin = 0
ELSE
'800ns pulse required
NeoPin = 1
'5 nop = 740ns @ 32MHz
'6 nop = 880ns @ 32MHz
'6 nop = 700ns @ 40MHz
'7 nop = 800ns @ 40MHz
ASM
nop
nop
nop
nop
nop
nop
nop
ENDASM
NeoPin = 0
ENDIF
RETURN
NeoInit:
FOR NeoPixel = 0 TO (NEO_NUM - 1)
IF NeoPixel < 10 THEN
NeoGreen[NeoPixel] = 0
NeoBlue[NeoPixel] = 0
NeoRed[NeoPixel] = 64
ELSEIF NeoPixel < 20 THEN
NeoGreen[NeoPixel] = 0
NeoBlue[NeoPixel] = 64
NeoRed[NeoPixel] = 0
ELSEIF NeoPixel < 30 THEN
NeoGreen[NeoPixel] = 0
NeoBlue[NeoPixel] = 64
NeoRed[NeoPixel] = 64
ELSEIF NeoPixel < 40 THEN
NeoGreen[NeoPixel] = 64
NeoBlue[NeoPixel] = 0
NeoRed[NeoPixel] = 0
ELSEIF NeoPixel < 50 THEN
NeoGreen[NeoPixel] = 64
NeoBlue[NeoPixel] = 0
NeoRed[NeoPixel] = 64
ELSE
NeoGreen[NeoPixel] = 64
NeoBlue[NeoPixel] = 64
NeoRed[NeoPixel] = 0
ENDIF
NEXT
RETURN
NeoDraw:
FOR NeoPixel = 0 TO (NEO_NUM + 1)
TempW = (NeoPixel * 8)
FOR BitCount = 7 TO 0 STEP -1
DataBit = NeoGreen.0[TempW + BitCount]
GOSUB NeoBit
NEXT
FOR BitCount = 7 TO 0 STEP -1
DataBit = NeoRed.0[TempW + BitCount]
GOSUB NeoBit
NEXT
FOR BitCount = 7 TO 0 STEP -1
DataBit = NeoBlue.0[TempW + BitCount]
GOSUB NeoBit
NEXT
NEXT
NeoPin = 0
RETURN
NeoRotate:
FOR NeoPixel = 0 TO (NEO_NUM - 1)
NeoGreen[NeoPixel] = NeoGreen[NeoPixel + 1]
NeoBlue[NeoPixel] = NeoBlue[NeoPixel + 1]
NeoRed[NeoPixel] = NeoRed[NeoPixel + 1]
NEXT
NeoGreen[NEO_NUM - 1] = NeoGreen[0]
NeoBlue[NEO_NUM - 1] = NeoBlue[0]
NeoRed[NEO_NUM - 1] = NeoRed[0]
RETURN
Re: Addressable RGB LED's & LED strips
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