单片机与usb鼠标通信代码c语音.docx

单片机与usb鼠标通信代码c语音.docx

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单片机与usb鼠标通信代码c语音

#include

#defineucharunsignedchar

#defineuintunsignedint

sbitc=P1^0;

sbitd=P1^1;

sbitRS=P2^5;

sbitRW=P2^6;

sbitE=P2^7;

voiddelay（intz）

{

intx,y;

for（x=0;x

for（y=0;y<10;y++）;

}

voidledxierushuju（charshuju）

{

RS=1;

RW=0;

P0=shuju;

delay

（1）;

E=1;

delay

（1）;

E=0;

}

voidledxiezhiling（ucharzhiling）

{

RS=0;

RW=0;

P0=zhiling;

delay

（1）;

E=1;

delay

（1）;

E=0;

}

voidledchushihua（）

{

E=0;

ledxiezhiling（0x38）;

ledxiezhiling（0x0c）;

ledxiezhiling（0x06）;

ledxiezhiling（0x01）;

}

voidxiezhiling（ucharzhiling）//鼠标写指令函数

{

ucharx;

inti;

inta;

x=zhiling;

while（c==0||d==0）;

d=0;

while（c==1）;

for（i=1;i<12;i++）

{

a=x%2;

d=a;

while（c==0）;

while（c==1）;

x=x/2;

}

c=1;

d=1;

delay

（1）;

}

uchardushuju（）//鼠标读数据函数

{

ucharx=0;

inti;

inta;

intm=0;

while（d==0）;

//时钟是由键盘给的，不需要单片机提供

//P0=0xfe;

for（i=0;i<11;i++）

{

//P0=0xaa;

if（i==1）

m=1;

else

m=m*2;

while（c!

=0）;

//P0=0xaa;

while（c!

=1）;

//P0=0xaa;

if（i<9）

{

a=d;

x=x+a*m;

}

}

c=1;

d=1;

delay

（1）;

returnx;

}

voidshujuxianshi（ucharshuju,uintx,uinty,uinti）

{

if（x>0）

x--;

if（i==1）

return;

switch（y）

{

case0:

switch（shuju）

{

case0x70:

ledxiezhiling（0x80+x）;//0

ledxierushuju（0x30）;

break;

case0x69:

ledxiezhiling（0x80+x）;//1

ledxierushuju（0x31）;

break;

case0x72:

ledxiezhiling（0x80+x）;//2

ledxierushuju（0x32）;

break;

case0x7a:

ledxiezhiling（0x80+x）;//3

ledxierushuju（0x33）;

break;

case0x6b:

ledxiezhiling（0x80+x）;//4

ledxierushuju（0x34）;

break;

case0x73:

ledxiezhiling（0x80+x）;//5

ledxierushuju（0x35）;

break;

case0x74:

ledxiezhiling（0x80+x）;//6

ledxierushuju（0x36）;

break;

case0x6c:

ledxiezhiling（0x80+x）;//7

ledxierushuju（0x37）;

break;

case0x75:

ledxiezhiling（0x80+x）;//8

ledxierushuju（0x38）;

break;

case0x7d:

ledxiezhiling（0x80+x）;//9

ledxierushuju（0x39）;

break;

case0x77:

ledxiezhiling（0x80+x）;//numlock

ledxierushuju（0xff）;

break;

//case0x7f:

ledxiezhiling（0x80）;///

//ledxierushuju（0x2f）;

//break;

case0x7c:

ledxiezhiling（0x80+x）;//*

ledxierushuju（0xff）;

break;

case0x7b:

ledxiezhiling（0x80+x）;//-

ledxierushuju（0x2d）;

break;

case0x79:

ledxiezhiling（0x80+x）;//+

ledxierushuju（0x2b）;

break;

case0x15:

ledxiezhiling（0x80+x）;//Q

ledxierushuju（0x51）;

break;

case0x1d:

ledxiezhiling（0x80+x）;//W

ledxierushuju（0x57）;

break;

case0x24:

ledxiezhiling（0x80+x）;//E

ledxierushuju（0x45）;

break;

case0x2d:

ledxiezhiling（0x80+x）;//R

ledxierushuju（0x52）;

break;

case0x2c:

ledxiezhiling（0x80+x）;//T

ledxierushuju（0x54）;

break;

case0x35:

ledxiezhiling（0x80+x）;//Y

ledxierushuju（0x59）;

break;

case0x3c:

ledxiezhiling（0x80+x）;//U

ledxierushuju（0x55）;

break;

case0x43:

ledxiezhiling（0x80+x）;//I

ledxierushuju（0x49）;

break;

case0x44:

ledxiezhiling（0x80+x）;//O

ledxierushuju（0x4f）;

break;

case0x4d:

ledxiezhiling（0x80+x）;//P

ledxierushuju（0x50）;

break;

case0x54:

ledxiezhiling（0x80+x）;//[

ledxierushuju（0x5b）;

break;

case0x5b:

ledxiezhiling（0x80+x）;//]

ledxierushuju（0x5d）;

break;

//case0x5a:

ledxiezhiling（0x80+x）;//enter

//ledxierushuju（0xff）;

//break;

case0x52:

ledxiezhiling（0x80+x）;//'

ledxierushuju（0x27）;

break;

case0x4c:

ledxiezhiling（0x80+x）;//;

ledxierushuju（0x3b）;

break;

case0x4b:

ledxiezhiling（0x80+x）;//L

ledxierushuju（0x4c）;

break;

case0x42:

ledxiezhiling（0x80+x）;//K

ledxierushuju（0x4b）;

break;

case0x3b:

ledxiezhiling（0x80+x）;//J

ledxierushuju（0x4a）;

break;

case0x33:

ledxiezhiling（0x80+x）;//H

ledxierushuju（0x48）;

break;

case0x34:

ledxiezhiling（0x80+x）;//G

ledxierushuju（0x47）;

break;

case0x2b:

ledxiezhiling（0x80+x）;//F

ledxierushuju（0x46）;

break;

case0x23:

ledxiezhiling（0x80+x）;//D

ledxierushuju（0x44）;

break;

case0x1b:

ledxiezhiling（0x80+x）;//S

ledxierushuju（0x53）;

break;

case0x1c:

ledxiezhiling（0x80+x）;//A

ledxierushuju（0x41）;

break;

case0x1a:

ledxiezhiling（0x80+x）;//Z

ledxierushuju（0x5a）;

break;

case0x22:

ledxiezhiling（0x80+x）;//X

ledxierushuju（0x58）;

break;

case0x21:

ledxiezhiling（0x80+x）;//C

ledxierushuju（0x43）;

break;

case0x2a:

ledxiezhiling（0x80+x）;//V

ledxierushuju（0x56）;

break;

case0x32:

ledxiezhiling（0x80+x）;//B

ledxierushuju（0x42）;

break;

case0x31:

ledxiezhiling（0x80+x）;//N

ledxierushuju（0x4e）;

break;

case0x3a:

ledxiezhiling（0x80+x）;//M

ledxierushuju（0x4d）;

break;

case0x41:

ledxiezhiling（0x80+x）;//,

ledxierushuju（0x2c）;

break;

case0x49:

ledxiezhiling（0x80+x）;//.

ledxierushuju（0x2e）;

break;

case0x4a:

ledxiezhiling（0x80+x）;///

ledxierushuju（0x2f）;

break;

//case0x59:

ledxiezhiling（0x80+x）;//SHIFT

//ledxierushuju（0x34）;

//break;

default:

ledxiezhiling（0x80+x）;

ledxierushuju（0xff）