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AVR的RGB彩灯控制芯片WS2801的控制程序8 ~" I7 k5 Q0 j2 ^5 H7 l- Z
& [ W7 i( ~9 G f& F! \! m9 K, N#include"color.h"4 N8 J& _2 P0 Y- N8 M ]1 F
#include"delay.h"
& x7 p; Q: q7 Y/ N3 z2 m" i// 0.18084us. W# a5 E; W; ^9 O8 C: d, G
void Sbi_SDI()& \9 R: P9 I9 _3 P) P
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sbi(PORTC,1);% p( E" P3 M2 F i
}
5 X( i; X) Z6 I' B9 V( _void Cbi_SDI()
. g7 D- c3 ]6 e! h9 X+ d# z{
" \+ m! O) h+ ~: Y) Y6 @cbi(PORTC,1);
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# |$ g8 B3 `) ]- `3 b. kvoid Sbi_CKI()
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sbi(PORTC,0);. f8 X* G3 U; @5 L8 v
}
' C! U* w G8 L2 M) v7 T8 o; dvoid Cbi_CKI()
% l o N) {: ^7 Q0 F S{
) G) n9 Q5 c0 x! Q/ s7 c8 @cbi(PORTC,0);( |0 @. r: I( l- ~
}
$ n: j9 x8 {8 t0 svoid Send_CKI() //WS2801 上升沿
( p$ V1 I% T: B+ s{
, c0 i9 z1 D2 H+ QCbi_CKI(); // 时钟 拉低
8 R2 Q( E3 `* k- G0 O_delay_us(6);
# F l O8 i( Q4 w+ t sSbi_CKI(); // 时钟 拉高
0 D/ u) T, d5 P_delay_us(6);
9 @) x+ G" S8 d$ r, J+ xCbi_CKI(); // 时钟 拉低
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6 G% l/ e/ N7 y# c4 svoid Write_WS2801_Data(unsigned char _data) //WS2801
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unsigned char dai;6 s$ E9 j+ l$ y% l9 y# T1 B
unsigned char cache;
+ `' b; n0 z( O5 k+ _6 Wfor(dai=0;dai<8;dai++)
" ?+ x. F9 u0 f9 w6 Y0 K{
3 s- e8 w: C8 F: K+ u% r; A3 _cache = (_data & 0x80)>>7;
' J( U, \' i/ A9 Tif(cache)$ e) q5 M' D$ t6 ?
Sbi_SDI();. p0 a& g& _1 Y0 c0 h1 y# }3 m6 }
else, ^. r6 \+ ~. n; K
Cbi_SDI();4 ?8 @/ I2 C- x* v
Send_CKI();( e5 q1 [! J( o3 S3 v Q; g! N& V
_data <<= 1;/ I) N! t8 s5 l1 D. d/ N
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}
+ K. s5 T; P% \; O1 Ovoid Write_WS2801_ColorData(unsigned char *pd)
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unsigned char LEDMax = 0; // LED 最大数量8 j* ]! s. e) _3 e& I: o
Cbi_CKI();
0 _8 g+ g8 h3 k4 D* u; vCbi_SDI();
8 E, ^/ T9 n6 \_delay_us(250);! D4 W3 ` @2 B) x1 p4 g
_delay_us(250);
: |9 @! p( u8 {0 z. Mfor(LEDMax = 0;LEDMax<27;LEDMax++)+ p2 V& l2 p4 h
{
4 r+ _. R7 D! i* K* w$ e; n//Write_WS2801_Data(Red);
# a' ?' y( C4 {: G( ~//Write_WS2801_Data(Green);
' @% d9 ~/ b7 h//Write_WS2801_Data(Blue);
" {) T. h$ E- a4 Y# x& i0 ?Write_WS2801_Data(*pd);
5 V* _8 R8 U& v* K+ M8 G7 j/ xpd++;
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