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AVR的RGB彩灯控制芯片WS2801的控制程序, t% E- M B1 Z" D g& T
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#include"color.h"5 z1 ]5 \6 B1 [; {2 J% o5 z
#include"delay.h"
5 z/ p! j: o% F: r F& ~; ^! l8 S: `// 0.18084us
~: a; @+ Z# L& l+ ^8 Mvoid Sbi_SDI()
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sbi(PORTC,1);, d1 W" x. ]5 s
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void Cbi_SDI()
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cbi(PORTC,1);
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. v" h! `8 U5 y: ?* Fvoid Sbi_CKI()9 B; u J! C$ e
{
5 P# j8 r8 X# N" x% q' m. nsbi(PORTC,0);
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void Cbi_CKI()# ?1 O4 e) p8 [+ Y1 x% b8 c
{
/ y; l# _$ C# o v1 K$ jcbi(PORTC,0);1 Q+ }+ S; f3 z2 v
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void Send_CKI() //WS2801 上升沿- ^, y0 ?' l5 n4 P$ B
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Cbi_CKI(); // 时钟 拉低
$ s7 ]6 {' w6 @1 U4 A_delay_us(6);5 Q T, L. y8 o# z
Sbi_CKI(); // 时钟 拉高
& m8 O# r; G- F" Q4 A6 t_delay_us(6);
7 B4 O6 E7 u: Q4 I* N# R% R; J, a7 [Cbi_CKI(); // 时钟 拉低( e" u N0 R) F" g9 ?3 z5 |/ n1 V& _
}
2 p u4 n' E* {' [% w- Lvoid Write_WS2801_Data(unsigned char _data) //WS28018 g0 h ^$ ]4 K9 p# M: @! p+ D' k
{
6 j- m( L! q/ n) N7 C" tunsigned char dai;/ W7 R; u' l4 j4 H3 x8 a0 M1 `
unsigned char cache;
0 A9 h$ e6 q# K. |for(dai=0;dai<8;dai++)2 t9 d- O# r: K; R' ?
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cache = (_data & 0x80)>>7;9 M0 x0 l2 f5 e8 _7 ]* h- r3 ?
if(cache): u) J9 f) B E1 b. Q0 ?
Sbi_SDI();
K$ B& v' x& jelse
' T1 e2 y/ W/ J" \: ?3 i; cCbi_SDI();
8 M, }7 S9 X, {' l0 ~Send_CKI();
% Y( z/ ~1 Z) __data <<= 1;$ I5 c* ^8 g/ O% Z% J
}
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0 f( e5 q+ S; O" ~/ a. tvoid Write_WS2801_ColorData(unsigned char *pd)4 K' e& K. w5 ?8 c3 V
{
' {- X! i9 }$ H7 Q, T! r; ?$ Q( Nunsigned char LEDMax = 0; // LED 最大数量+ V* S% H* T- R
Cbi_CKI();
& N$ I$ ]7 N% X( u" MCbi_SDI();! s# G2 j( T/ ~0 U7 d
_delay_us(250);6 q4 i& V2 q1 |9 }* c, {/ _( l
_delay_us(250);7 b3 j5 d U% B$ h& w* c' {4 S
for(LEDMax = 0;LEDMax<27;LEDMax++)
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//Write_WS2801_Data(Red);' k1 W0 W( ^" s, |
//Write_WS2801_Data(Green);2 K$ S0 D3 W: o. a& a: q- `6 ~5 D
//Write_WS2801_Data(Blue);
1 {* U0 D$ F0 J0 V) S) f" xWrite_WS2801_Data(*pd);2 t, O Y6 q# I8 u
pd++;- R. t! F8 K5 x8 l3 m9 G3 x; u" r. @
}
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