中电网的日志

LCD12864 驱动 ,采用串行方式

已有 113 次阅读 2013-04-16 13:25

LCD12864 驱动 ,采用串行方式

Y3a,m1F!q0
12864(控制器为st7920)
:k8| F!c a |0[ 2005-8-23 21:47:57 | By: kassey ]
hiz}!w"]|0/********************************************电子园51单片机学习网6T1iwXN
file&: lcd.h
,B!oj:[6iqXvp H0Description: LCD12864 驱动 ,采用串行方式,
Author:kassey@126.comJuly,22th,2005
9C$t [ZL+bR*]:q8g0********************************************/

＃i nclude<reg52.h>
9n}%HQ]'i:m0＃i nclude <intrins.h>
`lTmE0sbit SCLK =P1^3   //E
sbit SID =P1^4;    //RW电子园51单片机学习网7SjU-~7}
sbit RST =P1^2;   // low active 可以不用,也就是说,只用两条线和LCD通信
2|Y.DQ`v#X0#define ROW1 0x80
Fq@a3r.{\0#define ROW2 0x90
#define ROW3 0x88
1I8Wv;hG+Kt^$N0#define ROW4 0x98

6bT}7W!r$^o0
9~0b6t"`%s.]SZj k#v0unsigned char code AC_TABLE[]={
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,      //第一行汉字位置
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,      //第二行汉字位置
0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,      //第三行汉字位置
0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f,      //第四行汉字位置
};

/Ek q FxkJQ0
+D'y!Z_MN0/*****************************************
5aN T)g&m0Fucntion: delay10US(char x)
Description: delay for 10 us
Parameter: x
&Wak@g6X!sG,G0Author:kassey@126.com
-p|aD*It@9ZZ0Date: July,7th,2005
)G$M f O!`-z6WZ0*****************************************/

void delay10US(uchar x)
-M8h"H"RKVX!s;@gQ0{
uchar k;
:J3N I W/\0 for(k=0;k<x;k++);

}

/*****************************************电子园51单片机学习网r$Tm*] ~
Fucntion: delay1MS(char x)
Description: delay for 10 us
Parameter: x delay for 1MS
Author:kassey@126.com
4H0g_o2U2w p0Date: July,7th,2005电子园51单片机学习网(d8[6Q8eY
*****************************************/

nV$\Y.B-[N0
void delay1MS(uchar x)
$o-nULwlE0{ 电子园51单片机学习网JN1Cz6Z
uchar k,j;
av fR4Yr^'si L ^0 x="x"<<1;
for(k=0;k<x;k++)
for(j=0;j<255;j++)_nop_();
X7w7qSHs t0

D8KoO\;O/Y0}

3r$qCp.RnDG$^}Y%o0void SendByteLCD(uchar WLCDData)
-E[+b3G+Fp W[0{
uchar i;
for(i=0;i<8;i++)
{
x xJ:tzA}"g.Z0 if((WLCDData<<i)&0x80)SID=1;
else SID="0";
&i Z ben3TC0 SCLK=0;
P]w:AR0 SCLK=1
)? Xj aw s0}
}

:L"Ef4h Mw.I0
SPIWR(uchar Wdata,uchar RS)
{
6kENw/C8S e,n0   SendByteLCD(0xf8+(RS<<1));
TW |Z)Q|.zI@[*W0   SendByteLCD(Wdata&0xf0);
   SendByteLCD((Wdata<<4)&0xf0);

RH]Lt1wh0 }
void SendCMD(uchar CMD)
{
!D$Go*e_ C`]0SPIWR(CMD,0);
delay10US(90);//8155来模拟串行通信,所以,加上8155的延时,

c~B e;o!{j`0}

void SendData(uchar Data)
{

a2`6MS,N0p0SPIWR(Data,1);
S;] z$P!\`0}

K@Vq(Gj&Hx j {W;e0void LCDInit()
)l~"jVy(?&?0{

RST=0;
delay1MS(50);
RST=1;

     SendCMD(0x30);//功能设置，一次送8位数据，基本指令集
@6z;h.p!U@0     SendCMD(0x0C);//0000,1100 整体显示，游标off，游标位置off
)MH K"U1\_Q0     SendCMD(0x01);//0000,0001 清DDRAM
     SendCMD(0x02);//0000,0010 DDRAM地址归位
}`hR1~@"x'A `I0     SendCMD(0x80);//1000,0000 设定DDRAM 7位地址000，0000到地址计数器AC//
,Ur }D-Qca;f ]0 SendCMD(0x04);//点设定，显示字符/光标从左到右移位，DDRAM地址加一//
[6K[K du0 SendCMD(0x0C);//显示设定，开显示，显示光标，当前显示位反白闪动

PSe?_.c0
Qt HUve4f)A/l0}

$r ] Lh^fE0

/*****************************
$Mx&w%_7]^%_C+Q P'k0清文本区
*****************************/
#?},euk:tJ0void LcmClearTXT( void )电子园51单片机学习网$gP;L5?!Z
{
.vwZe%h0P,a.u0     unsigned char i;
0`&jYP;J{0     SendCMD(0x30);      //8BitMCU,基本指令集合
vzK/]!y0     SendCMD(0x80);      //AC归起始位
-f!UOR-O+Jq!u0     for(i=0;i<64;i++)
        SendData(0x20);
}

/*****************************
3Z~i_/k M0发送字符串
*****************************/
h*C2~Em1`3]J7\0void PutStr(unsigned char row,unsigned char col,unsigned char *puts)电子园51单片机学习网;M6Qt|B
{
     SendCMD(0x30);      //8BitMCU,基本指令集合
     SendCMD(AC_TABLE[8*row+col]);      //起始位置
     while(*puts != '\0')      //判断字符串是否显示完毕
G|2O.H#r5Y {6T/b/U0     {
9e@zx#{w0           if(col==8)            //判断换行电子园51单片机学习网Z]]8W?
           {            //若不判断,则自动从第一行到第三行
Q'up(z b]^/_3jt0                 col="0";
                 row++;
           }
           if(row==4) row="0";      //一屏显示完,回到屏左上角
-~-C'm:N5osCs [0           SendCMD(AC_TABLE[8*row+col]);
4|)V,xSb$U0           SendData(*puts);      //一个汉字要写两次
8G+HE7n @1Q Tr/^0           puts++;
c{LK3{/oC$G&bcQ?0           SendData(*puts);
4T w;pqy/K \ Tu0           puts++;
g m @P M)FE0           col++;
{6gx,[ne0     }
}

/*****************************
绘图
*****************************/
o5m)J&F l%l f7vD0void PutBMP(unsigned char *puts)
1P!h~k2iO A'e0{
     unsigned int x="0";
     unsigned char i,j;
     SendCMD(0x34);      //8Bit扩充指令集,即使是36H也要写两次
d!vs K6B;F)z/Ul^k8t0     SendCMD(0x36);      //绘图ON,基本指令集里面36H不能开绘图
     for(i=0;i<32;i++)            //12864实际为256x32
w _~[HV0     {
           SendCMD(0x80|i);      //行位置
[kE"P7u E7Xg0           SendCMD(0x80);      //列位置
9nM&s2[:i(hEZ:ZZ0           for(j=0;j<32;j++)      //256/8=32 byte
w1nm+U_CO} V!`]0           {            //列位置每行自动增加
}$`&H!S,Hl0                 SendData(puts[x]);
]~$t ^E2kQ0                 x++;
           }
w dp?Q9mw:q0     }
"e R!p4\ZD g0}

+p3rWmFz4rU0 void ClearScreen()
?DG$t Hcn9h0{    uchar i,j,x,y;电子园51单片机学习网F)O'R V{
     LCDInit();
~3ntC\0   SendCMD(0x3e);// RE="1" 扩展指令选择 G="1" 开图形显示
5K|XjCl0      x="0x80";
1o!U!a{$R~5|V~0      y="0x80";
O@&|Lp5w.B0      for(j=0;j<64;j++)电子园51单片机学习网MQE*KE
      {
:kUy bVM0      y="0x80";
     SendCMD(x);
     SendCMD(y);
       for(i=0;i<32;i++)
(r$^#B H3E.y-qJ2R!a;`,R0      {
Zl)G:Y2F+W;P0       SendData(0x00);

v p[LOC X/{ n E0      }
      x="x"+1;
G*yR]8Rp(vR0      }

!L|7b U5V.mKD0}

#T p$B| J|w Uf-q gQ0void Sendint(uint dd)
+`DF5bH$bk0]0{
SendData(dd>>8);
]!|.tB n[?0SendData(dd);
}

/*****************************
Su"S]+u/d!W[*n0打点 x="0:128"; y="0:64";
*****************************/电子园51单片机学习网Sq-J1fi
void Gra(uchar x,uchar y)
{
uchar xx,yy;电子园51单片机学习网4^SiNT
SendCMD(0x34);
3V},X"LT9C0SendCMD(0x36);电子园51单片机学习网"@z2h BH
xx=x/16;
m6f(`.q[-C }:S0yy=63-y;
6t#h{;ij.U0if(yy>=32){xx=xx+8;yy-=32;}电子园51单片机学习网/gzLm D
SendCMD(0x80+yy);
'|1~:zP[~9p%d4h,Z0SendCMD(0x80+xx);
Sendint(0x8000>>(x%16));

t-w&PKa3X(w A0}

!w@ ^*x? X~d0 uchar code IBM[]=
fQ gRR lf#y0{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
(K2_v)J jj00x7F,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xF0,0x00,0xFF,0xFF,0xE0,0x00,0x07,0xFF,0xFE,
0x7F,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xF0,0x00,0xFF,0xFF,0xE0,0x00,0x0F,0xFF,0xFE,
0x7F,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xF8,0x00,0xFF,0xFF,0xE0,0x00,0x0F,0xFF,0xFE,
0x7F,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xFC,0x00,0xFF,0xFF,0xF0,0x00,0x1F,0xFF,0xFE,
P Q2U$DkIqihYM2c00x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
\r0C8l LUb&w00x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,电子园51单片机学习网9cNf;}?
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x7F,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xFF,0x00,0xFF,0xFF,0xF8,0x00,0x3F,0xFF,0xFE,
#\}6M0}"Z00x7F,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xFF,0x80,0xFF,0xFF,0xFC,0x00,0x7F,0xFF,0xFE,
jT2qXDAWY00x7F,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xFF,0x80,0xFF,0xFF,0xFC,0x00,0x7F,0xFF,0xFE,
0x7F,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xFF,0x80,0xFF,0xFF,0xFC,0x00,0x7F,0xFF,0xFE,
Hc4`;n x!_W+\P t00x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
,v&OU*pJ |W0}00x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
c"@a/f8`SC0d00x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
/K z#mJp0V })]F00x00,0xFF,0xC0,0x00,0x0F,0xF8,0x00,0xFF,0xC0,0x03,0xFF,0xFE,0x01,0xFF,0xFF,0x00,
)x9bF'U^-h00x00,0xFF,0xC0,0x00,0x0F,0xF8,0x00,0xFF,0xC0,0x03,0xFF,0xFF,0x01,0xFF,0xFF,0x00,
0x00,0xFF,0xC0,0x00,0x0F,0xF8,0x00,0xFF,0xC0,0x03,0xFF,0xFF,0x03,0xFF,0xFF,0x00,
0x00,0xFF,0xC0,0x00,0x0F,0xF8,0x00,0xFF,0x80,0x03,0xFF,0xFF,0x83,0xFF,0xFF,0x00,
HG5d FhX'KI00x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,电子园51单片机学习网JG%o\~
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0xFF,0xC0,0x00,0x0F,0xFF,0xFF,0xFF,0x00,0x03,0xFF,0xFF,0xCF,0xFF,0xFF,0x00,
m"Q,r#e)E9M00x00,0xFF,0xC0,0x00,0x0F,0xFF,0xFF,0xFE,0x00,0x03,0xFF,0xFF,0xEF,0xFF,0xFF,0x00,
0x00,0xFF,0xC0,0x00,0x0F,0xFF,0xFF,0xFE,0x00,0x03,0xFF,0xFF,0xEF,0xFF,0xFF,0x00,
0x00,0xFF,0xC0,0x00,0x0F,0xFF,0xFF,0xFC,0x00,0x03,0xFF,0xBF,0xFF,0xFB,0xFF,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
_Bc0wuW$D_00x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
~-b:am7KH|S h00x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,电子园51单片机学习网x)OgdF
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
&B6N,C%Ip00x00,0xFF,0xC0,0x00,0x0F,0xFF,0xFF,0xFC,0x00,0x03,0xFF,0x8F,0xFF,0xF3,0xFF,0x00,
)fF0BE0m:M00x00,0xFF,0xC0,0x00,0x0F,0xFF,0xFF,0xFE,0x00,0x03,0xFF,0x87,0xFF,0xE3,0xFF,0x00,
3xP4J wpQI j3Xu00x00,0xFF,0xC0,0x00,0x0F,0xFF,0xFF,0xFE,0x00,0x03,0xFF,0x87,0xFF,0xE3,0xFF,0x00,
Tw6?Z+?1L00x00,0xFF,0xC0,0x00,0x0F,0xFF,0xFF,0xFF,0x00,0x03,0xFF,0x87,0xFF,0xC3,0xFF,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0xFF,0xC0,0x00,0x0F,0xF8,0x00,0xFF,0x80,0x01,0xFF,0x83,0xFF,0x83,0xFF,0x00,
N,_*_-qM%kr00x00,0xFF,0xC0,0x00,0x0F,0xF8,0x00,0xFF,0xC0,0x01,0xFF,0x81,0xFF,0x03,0xFF,0x00,
0x00,0xFF,0xC0,0x00,0x0F,0xF8,0x00,0xFF,0xC0,0x01,0xFF,0x81,0xFF,0x03,0xFF,0x00,电子园51单片机学习网)C5X.HDV
0x00,0xFF,0xC0,0x00,0x0F,0xF8,0x00,0xFF,0xC0,0x01,0xFF,0x80,0xFF,0x03,0xFF,0x00,
8G0U'US4U]&I)a00x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
iFWDn1J[m00x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
a@!st|00x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
"u%s E:v!wI$h00x7F,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xFF,0xC0,0xFF,0xFF,0xC0,0x7E,0x03,0xFF,0xFE,
0x7F,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xFF,0xC0,0xFF,0xFF,0xC0,0x7C,0x03,0xFF,0xFE,
0x7F,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xFF,0xC0,0xFF,0xFF,0xC0,0x3C,0x03,0xFF,0xFE,
O:Q U1g"}j00x7F,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xFF,0x80,0xFF,0xFF,0xC0,0x3C,0x03,0xFF,0xFE,
!e`S{&x XU00x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
2GZ k w&Ib00x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
4[D^k$l4U00x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x7F,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xFE,0x00,0xFF,0xFF,0xC0,0x18,0x03,0xFF,0xFE,
0x7F,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xFE,0x00,0xFF,0xFF,0xC0,0x18,0x03,0xFF,0xFE,
C,z7SE_00x7F,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xFC,0x00,0xFF,0xFF,0xC0,0x08,0x03,0xFF,0xFE,
0x7F,0xFF,0xFF,0x87,0xFF,0xFF,0xFF,0xF8,0x00,0xFF,0xFF,0xC0,0x00,0x03,0xFF,0xFE,
/i5Z"j!i ZvSqv O)E00x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

};

void Put(uchar *p)电子园51单片机学习网"|8G d;h;T

C,s;Dx4~][;nY0{
Zv,RPu2J ] F0 uchar xx,yy

for(yy=0;yy<32;yy++)
d)P(\b*v^a5[t?0 for(xx=0;xx<8;xx++)
3Bg(f0A3[g0 {
z!\g*`;m.g(jn7G"}p!H0 SendCMD(0x80+yy); //y 按位
$yp!~9_8u'zn;Yr0 SendCMD(0x80+xx);//x 按16位
M/@3U$]"rtK0 SendData(*p);
4C8Idtjsqs0 p++;
SendData(*p);
l#\s*F/t9V'QB0 p++;
9t cVTx |%sE2I6P'[0 }

for(yy=0;yy<32;yy++)
for(xx=8;xx<16;xx++)
{
SendCMD(0x80+yy); //y 按位
Zj,o[w?&C:~r3`0 SendCMD(0x80+xx);//x 按16位
4yg*JR)F RDQ v0 SendData(*p);
p++;
SendData(*p);
p++;
}

}

6rjAcn I2Um!u0void Clear()
{    uchar i,j;
0q(FiBH0     LCDInittest();
J;@HT.T!\d0 SendCMD(0x34);
"O]|9Px+n }0   SendCMD(0x3e);// RE="1" 扩展指令选择 G="1" 开图形显示
*rn$t(`C0
LH#F+a`9bqj.b3i0     for(j=0;j<16;j++)
     for(i=0;i<32;i++)

Q b APE4@Nq0 {
QU+o)i X0 SendCMD(0x80+i);
!x0Y/sMw0 SendCMD(0x80+j);
SendData(0x00);
7b;f,c P"A0 SendData(0x00);
c(r"z~k|0 }

^;~B4J!f |0}