毕业设计自行车测速仪.docx
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毕业设计自行车测速仪
#include
#include
#include
#defineGDM12864ADataPortP1//LCD数据线
#defineucharunsignedchar
sbitDI=P2^2;//数据\指令选择
sbitRW=P2^1;//读\写选择
sbitEN=P2^0;//读\写使能
sbitcs1=P2^4;//片选1
sbitcs2=P2^3;//片选2
sbitsclk=P2^5;
sbiti_o=P2^6;
sbitrstb=P2^7;
sbitds18s20_dq=P3^6;
sbitI2C_SCK=P3^3;
sbitI2C_SDA=P3^5;
ucharqq=0,pp=0;//开始/暂停按键,计算机传输过来的数据为8则上传
ucharcodea[]={//16*16
0x10,0x22,0x64,0x0C,0x80,0x00,0xFE,0x92,0x92,0x92,0x92,0x92,0xFF,0x02,0x00,0x00,
0x04,0x04,0xFE,0x01,0x40,0x7E,0x42,0x42,0x7E,0x42,0x7E,0x42,0x42,0x7E,0x40,0x00,
0x00,0x00,0xFC,0x24,0x24,0x24,0xFC,0xA5,0xA6,0xA4,0xFC,0x24,0x34,0x26,0x04,0x00,
0x40,0x20,0x9F,0x80,0x42,0x42,0x26,0x2A,0x12,0x2A,0x26,0x42,0x40,0xC0,0x40,0x00,
0x00,0xFC,0x84,0x84,0x84,0xFE,0x14,0x10,0x90,0x10,0x10,0x10,0xFF,0x10,0x10,0x00,
0x00,0x3F,0x10,0x10,0x10,0x3F,0x00,0x00,0x00,0x23,0x40,0x80,0x7F,0x00,0x00,0x00,
0x00,0xF8,0x01,0x02,0xF6,0x10,0x12,0x12,0x12,0x12,0xFA,0x12,0x02,0xFF,0x02,0x00,
0x00,0xFF,0x00,0x00,0x3F,0x11,0x11,0x11,0x11,0x11,0x3F,0x40,0x80,0x7F,0x00,0x00,
0x40,0x42,0x44,0xCC,0x00,0xF4,0x94,0x94,0x94,0xFF,0x94,0x94,0x94,0xF6,0x04,0x00,
0x00,0x40,0x20,0x1F,0x20,0x51,0x48,0x44,0x42,0x7F,0x42,0x44,0x4C,0x61,0x20,0x00,
0x00,0x00,0xFE,0x12,0x12,0x12,0x12,0xFE,0x12,0x12,0x12,0x12,0xFF,0x02,0x00,0x00,
0x40,0x48,0x49,0x49,0x49,0x49,0x49,0x7F,0x49,0x49,0x49,0x49,0x4D,0x68,0x40,0x00,
0x24,0x24,0xA4,0xFE,0xA3,0x22,0x20,0x7E,0x42,0x42,0x42,0x42,0x42,0x7F,0x02,0x00,
0x08,0x06,0x01,0xFF,0x00,0x43,0x41,0x49,0x49,0x49,0x7F,0x49,0x4D,0x69,0x41,0x00,
0x00,0x00,0xFE,0x82,0x92,0x92,0x92,0xFE,0x92,0x9A,0xD2,0x82,0xFF,0x02,0x00,0x00,
0x40,0x20,0x1F,0x00,0x00,0x7E,0x22,0x22,0x22,0x3F,0x42,0x80,0x7F,0x00,0x00,0x00,
0x80,0x80,0x80,0x80,0xFF,0x80,0x80,0xA0,0x90,0x88,0x84,0x86,0x80,0xC0,0x80,0x00,
0x00,0x00,0x00,0x00,0xFF,0x40,0x40,0x23,0x04,0x08,0x10,0x20,0x60,0x20,0x00,0x00,
0x00,0x06,0x09,0x09,0xE6,0xF0,0x18,0x08,0x08,0x08,0x18,0x30,0x78,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x07,0x0F,0x18,0x30,0x20,0x20,0x20,0x10,0x08,0x00,0x00,0x00,
0x80,0x40,0x20,0xF8,0x47,0x48,0x48,0x48,0xC8,0x7F,0x48,0x48,0x4C,0x68,0x40,0x00,
0x00,0x00,0x00,0xFF,0x00,0x00,0x02,0x0B,0x12,0x62,0xD2,0x0A,0x06,0x02,0x00,0x00
};
ucharcodeb[]={//8*16
0x00,0xF8,0x08,0x08,0x08,0x08,0xF8,0x00,0x00,0x3F,0x20,0x20,0x20,0x20,0x3F,0x00,
0x00,0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,
0x00,0x08,0x08,0x08,0x08,0x08,0xF8,0x00,0x00,0x3F,0x21,0x21,0x21,0x21,0x21,0x00,
0x00,0x08,0x08,0x08,0x08,0x08,0xF8,0x00,0x00,0x21,0x21,0x21,0x21,0x21,0x3F,0x00,
0x00,0xF8,0x00,0x00,0x00,0x00,0xF8,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x3F,0x00,
0x00,0xF8,0x08,0x08,0x08,0x08,0x00,0x00,0x00,0x21,0x21,0x21,0x21,0x21,0x3F,0x00,
0x00,0xF8,0x08,0x08,0x08,0x08,0x08,0x00,0x00,0x3F,0x21,0x21,0x21,0x21,0x3F,0x00,
0x00,0x08,0x08,0x08,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0x00,
0x00,0xF8,0x08,0x08,0x08,0x08,0xF8,0x00,0x00,0x3F,0x21,0x21,0x21,0x21,0x3F,0x00,
0x00,0xF8,0x08,0x08,0x08,0x08,0xF8,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x3F,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3E,0x01,0x01,0x3E,0x01,0x01,0x3E,0x00,
0x00,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x13,0x24,0x24,0x19,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,
0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x0C,0x0C,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0xC0,0x00,0x00,0x80,0x40,0x00,0x00,0x00,0x3F,0x06,0x09,0x10,0x20,0x00,0x00,//17,k
0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0x02,0x02,0x02,0x3E,0x00,0x00//18,h
};
//延时程序，延时10us
voidDelay_10_uS（void）
{
chari=10;
while（i--）;
}
//nmSdelay
voidDelay_N_mS（unsignedintn_milisecond）/*nmSdelay*/
{
unsignedchari;
while（n_milisecond--）
{
i=37;
while（i--）;
}
}
//启动传送
bitI2C_Start（void）
{
Delay_10_uS（）;
I2C_SDA=1;
Delay_10_uS（）;
I2C_SCK=1;
Delay_10_uS（）;
if（I2C_SDA==0）return0;
if（I2C_SCK==0）return0;
I2C_SDA=0;
Delay_10_uS（）;
I2C_SCK=0;
Delay_10_uS（）;
return1;
}
//停止信号
voidI2C_Stop（void）
{
Delay_10_uS（）;
I2C_SDA=0;
Delay_10_uS（）;
I2C_SCK=1;
Delay_10_uS（）;
I2C_SDA=1;
Delay_10_uS（）;
}
//无应答的时序，有应答时需要在第9位输出0，没有应答时，第9位为高
voidI2C_Nack（void）
{
Delay_10_uS（）;
I2C_SDA=1;
Delay_10_uS（）;
I2C_SCK=1;
Delay_10_uS（）;
I2C_SCK=0;
Delay_10_uS（）;
}
//如果发送完成并且在第9个脉冲处得到ack，那么返回0，表示成功
bitI2C_Send_Byte（unsignedchard）
{
unsignedchari=8;
bitbit_ack;
while（i--）
{
Delay_10_uS（）;
if（d&0x80）I2C_SDA=1;
elseI2C_SDA=0;
Delay_10_uS（）;
I2C_SCK=1;
Delay_10_uS（）;
I2C_SCK=0;
d=d<<1;
}
Delay_10_uS（）;
I2C_SDA=1;
Delay_10_uS（）;
I2C_SCK=1;
Delay_10_uS（）;
bit_ack=I2C_SDA;
I2C_SCK=0;
Delay_10_uS（）;
returnbit_ack;
}
//接收一个8位数据
unsignedcharI2C_Receive_Byte（void）
{
unsignedchari=8,d;
Delay_10_uS（）;
I2C_SDA=1;
while（i--）
{
d=d<<1;
Delay_10_uS（）;
I2C_SCK=1;
if（I2C_SDA）d++;
Delay_10_uS（）;
I2C_SCK=0;
}
returnd;
}
//写EEPROM操作
voidAT24C64_W（void*mcu_address,unsignedintAT24C64_address,unsignedintcount）
{
while（count--）
{
I2C_Start（）;
I2C_Send_Byte（0xa0）;
I2C_Send_Byte（AT24C64_address/256）;
I2C_Send_Byte（AT24C64_address%256）;
I2C_Send_Byte（*（unsignedchar*）mcu_address）;
I2C_Stop（）;
Delay_N_mS（10）;
（（unsignedchar*）mcu_address）++;
AT24C64_address++;
}
}
//读EEPROM函数
voidAT24C64_R（void*mcu_address,unsignedintAT24C64_address,unsignedintcount）
{
while（count--）
{
I2C_Start（）;
I2C_Send_Byte（0xa0）;
I2C_Send_Byte（AT24C64_address/256）;
I2C_Send_Byte（AT24C64_address%256）;
I2C_Start（）;
I2C_Send_Byte（0xa1）;
*（unsignedchar*）mcu_address=I2C_Receive_Byte（）;
I2C_Nack（）;
I2C_Stop（）;
（（unsignedchar*）mcu_address）++;
AT24C64_address++;
}
}
//单总线延时
voidds18s20delay（intuseconds）
{
ints;
for（s=0;s}
//单总线复位
uchards18s20reset（）
{
ucharpresencesignal;
ds18s20_dq=0;
ds18s20delay（30）;
ds18s20_dq=1;
ds18s20delay（3）;
presencesignal=ds18s20_dq;
ds18s20delay（30）;
returnpresencesignal;
}
//单总线位写入
voidds18s20writebit（charval）
{
ds18s20_dq=0;
if（val==1）
ds18s20_dq=1;
else
ds18s20_dq=0;
ds18s20delay（5）;
ds18s20_dq=1;
}
//单总线字节写入
voidds18s20writebyte（charval）
{
uchari;
uchartemp;
for（i=0;i<8;i++）
{
temp=val>>i;
temp&=0x01;
ds18s20writebit（temp）;
}
ds18s20delay（5）;
}
//单总线位读取
uchards18s20readbit（void）
{
uchari;
ds18s20_dq=0;
ds18s20_dq=1;
for（i=0;i<3;i++）
returnds18s20_dq;
}
//单总线字节读取
uchards18s20readbyte（void）
{
uchari;
ucharvalue=0;
for（i=0;i<8;i++）
{
if（ds18s20readbit（））
value|=0x01<ds18s20delay（7）;
}
return（value）;
}
//实时时钟复位函数
voidresetds1302（）
{
ds18s20delay
（1）;
sclk=0;
ds18s20delay
（1）;
rstb=0;
ds18s20delay
（1）;
rstb=1;
ds18s20delay
（1）;
}
//时钟字节读取函数
ucharreadbyteds1302（）
{
uchari;
ucharrbyte;
uchartempbyte;
rbyte=0x00;
i_o=1;
ds18s20delay
（1）;
for（i=0;i<8;++i）
{
sclk=1;
ds18s20delay
（1）;
sclk=0;
ds18s20delay
（1）;
tempbyte=（uchar）i_o;
tempbyte<<=7;
rbyte>>=1;
rbyte|=tempbyte;
}
returnrbyte;
}
//时钟字节写入函数
voidwritebyteds1302（ucharw_byte）
{
uchari;
ds18s20delay
（1）;
for（i=0;i<8;++i）
{i_o=0;
if（w_byte&0x01）i_o=1;
sclk=0;
ds18s20delay
（1）;
sclk=1;
ds18s20delay
（1）;
w_byte>>=1;
}
}
//时钟初始化函数
voidinitds1302（）
{
resetds1302（）;
writebyteds1302（0x8e）;
writebyteds1302（0）;
resetds1302（）;
writebyteds1302（0x90）;
writebyteds1302（0xab）;
resetds1302（）;
writebyteds1302（0xbe）;
writebyteds1302（0）;
writebyteds1302（0）;
writebyteds1302（0）;
writebyteds1302（0）;
writebyteds1302（0）;
writebyteds1302（0）;
writebyteds1302（0）;
writebyteds1302（0）;
writebyteds1302（0）;
resetds1302（）;
}
//时钟字节写入函数
voidwriteclkbyte（ucharadress,uchardate）
{
adress=（（adress*2）|0x80）;
resetds1302（）;
writebyteds1302（adress）;
writebyteds1302（date）;
resetds1302（）;
}
//状态检查，
voidCheckState（）
{
unsignedchardat;
DI=0;
RW=1;
do{
GDM12864ADataPort=0x00;
EN=1;
dat=GDM12864ADataPort;
EN=0;
dat=0x80&dat;//仅当第7位为0时才可操作（判别busy信号）
}while（!
（dat==0x00））;
}
//向LCD发送命令
//command:
命令
voidSendCommandToLCD（unsignedcharcommand）
{
CheckState（）;
RW=0;
GDM12864ADataPort=command;
EN=1;EN=0;
}
//写显示数据
//dat:
显示数据
voidWriteByte（unsignedchardat）
{
CheckState（）;
DI=1;RW=0;
GDM12864ADataPort=dat;
EN=1;EN=0;
}
//设定行地址（页）--X0-7
voidSetLine（unsignedcharline）
{
line=line&0x07;//0<=line<=7
line=line|0xb8;//10111xxx
SendCommandToLCD（line）;
}
//设定列地址--Y0-63
voidSetColumn（unsignedcharcolumn）
{
column=column&0x3f;//0=column=column|0x40;//01xxxxxx
SendCommandToLCD（column）;
}
//设定显示开始行--XX
voidSetStartLine（unsignedcharstartline）//0--63
{
startline=startline&0x07;
startline=startline|0xc0;//11000000
SendCommandToLCD（startline）;
}
//开关显示
voidSetOnOff（unsignedcharonoff）
{
onoff=0x3e|onoff;//0011111x
SendCommandToLCD（onoff）;
}
//选择屏幕
//screen:
0-全屏,1-左屏,2-右屏
voidSelectScreen（unsignedcharscreen）
{//cs1:
1--左;cs2:
1--右
switch（screen）
{case0:
cs1=0;//全屏
_nop_（）;_nop_（）;_nop_（）;
cs2=0;
_nop_（）;_nop_（）;_nop_（）;
break;
case1:
cs1=0;//左屏
_nop_（）;_nop_（）;_nop_（）;
cs2=1;
_nop_（）;_nop_（）;_nop_（）;
break;
case2:
cs1=1;//右屏
_nop_（）;_nop_（）;_nop_（）;
cs2=0;
_nop_（）;_nop_（）;_nop_（）;
break;
}
}
//延时
delay（unsignedintt）
{
unsignedinti=t,m,n;
for（m=0;mfor（n=0;n<100;n++）;
}
//清屏
//screen:
0-全屏,1-左屏,2-右？
分屏干嘛，直接全屏不好吗
voidClearScreen（unsignedcharscreen）
{unsignedchari,j;
SelectScreen（screen）;
for（i=0;i<8;i++）{
SetLine（i）;
for（j=0;j<128;j++）{
WriteByte
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