蓝桥杯十二届省赛
这是我备赛时写的代码，还挺好，功能全部实现。有意者私
main.c
#include "Define.h"
u8 flag=1;
u8 time_key,test;
bit flag_V_G;
u8 time_adc;
u16 U16_V,U16_V_pro;
u16 frequence_pro;
bit flag_LED;
u16 time_key7;
void Key_pross()
{
if(time_key>=10)
{
time_key=0;
Key_scan();
if(trg&0x08)//4
{
flag++;
flag%=3;
}
else if(trg&0x04)//5
flag_V_G=~flag_V_G;
else if(trg&0x02)//6
U16_V_pro=U16_V;
if(con&0x01)
time_key7++;
else if(con==0x00&&trg==0x00)
{
if(time_key7>=100)
{
flag_LED=~flag_LED;
time_key7=0;
}
else if(time_key7!=0)
{
time_key7=0;
frequence_pro=frequence;
}
}
}
}
u8 LED=0XFF;
void LED_prosss()
{
if(flag_LED==0)
{
if(U16_V>U16_V_pro)
LED&=~0x01;
else
LED|=0X01;
if(frequence>frequence_pro)
LED&=~0x02;
else
LED|=0X02;
if(flag==0)
LED&=~0x04;
else
LED|=0X04;
if(flag==1)
LED&=~0x08;
else
LED|=0X08;
if(flag==2)
LED&=~0x10;
else
LED|=0X10;
Device_Ctri(0x80,LED);
}
else
Device_Ctri(0x80,0xff);
}
void ADC_pross()
{
if(time_adc>=100)
{
time_adc=0;
U16_V=ADC_read(0x43)*100/51;
}
}
void Smg_pross()
{
if(flag==0)//频率显示
{
Smg_show[0]=Smg_code[15];
Smg_show[1]=0x00;
Smg_show[2]=0x00;
Smg_show[3]=Smg_code[frequence>9999 ? frequence/10000:16];
Smg_show[4]=Smg_code[frequence>999 ? frequence/1000%10:16];
Smg_show[5]=Smg_code[frequence>99 ? frequence/100%10:16];
Smg_show[6]=Smg_code[frequence/10%10];
Smg_show[7]=Smg_code[frequence%10];
}
if(flag==1)//周期显示
{
Smg_show[0]=0x37;
Smg_show[1]=0x00;
Smg_show[2]=0x00;
Smg_show[3]=Smg_code[zhouqi>9999 ? zhouqi/10000:16];
Smg_show[4]=Smg_code[zhouqi>999 ? zhouqi/1000%10:16];
Smg_show[5]=Smg_code[zhouqi>99 ? zhouqi/100%10:16];
Smg_show[6]=Smg_code[zhouqi/10%10];
Smg_show[7]=Smg_code[zhouqi%10];
}
else if(flag==2)//电压-光敏
{
Smg_show[0]=0x3E;
Smg_show[1]=0x40;
if(flag_V_G==0)
Smg_show[2]=Smg_code[1];
else
Smg_show[2]=Smg_code[3];
Smg_show[3]=0x00;
Smg_show[4]=0x00;
Smg_show[5]=Smg_code[U16_V/100]|0x80;
Smg_show[6]=Smg_code[U16_V/10%10];
Smg_show[7]=Smg_code[U16_V%10];
}
}
void main()
{
Device_Init();
Timer2Init();
NE555_Init();
while(1)
{
ADC_pross();
Key_pross();
Smg_pross();
}
}
//-----------------------------------------------
//中断服务1程序里面放不耗时间的函数，LED灯也放这
//中断服务程序
void Timer_2int() interrupt 12 //中断入口
{
time_key++;
time_adc++;
NE555_process();
LED_prosss();
Smg_display();
}
Smg.c
#include "Smg.h"
0 1 2 3 4 5 6 7 8 9 A B C D E F
// 0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x77,0x7C,0x39,0x5E,0x79,0x71,
black - H J K L N o P U t G Q r M y
// 0x00,0x40,0x76,0x1E,0x70,0x38,0x37,0x5C,0x73,0x3E,0x78,0x3d,0x67,0x50,0x37,0x6e,
u8 Smg_code[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x77,0x7C,0x39,0x5E,0x79,0x71,0x00};
u8 Smg_show[8];
u8 code T_COM[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80}; //位码
void Smg_display()
{
static u8 i;
Device_Ctri(0xc0,0x00);
Device_Ctri(0xe0,~Smg_show[i]);
Device_Ctri(0xc0,T_COM[i]);
i++;
i%=8;
}
Device.c
#include "Device.h"
void Device_Ctri(u8 p2data,u8 p0date)
{
P0=p0date;
P2=P2&0X1F|p2data;
P2&=0X1F;
}
void Device_Init()
{
Device_Ctri(0x80,0xff);
Device_Ctri(0xa0,0x00);
}Timer.c
#include "Timer.h"
void Timer2Init(void) //1毫秒@12.000MHz
{
AUXR &= 0xFB; //定时器时钟12T模式
T2L = 0x18; //设置定时初值
T2H = 0xFC; //设置定时初值
AUXR |= 0x10; //定时器2开始计时
IE2 |= 0x04; //开定时器2中断
EA = 1;
}
Key.c
#include "Key.h"
//独立按键
u8 con,trg;
void Key_scan()
{
u8 date=P3^0XFF;
trg=date&(date^con);
con=date;
}
Ne555.c
#include "NE555.h"
void NE555_Init()
{
TMOD|=0X05;
TL0=0x00;
TH0=0x00;
TR0=1;
}
u16 time_NE555;
u16 frequence;
u16 zhouqi;
void NE555_process()
{
time_NE555++;
if(time_NE555>=1000)
{
time_NE555=0;
frequence=((TH0<<8)|TL0);
TL0=0x00;
TH0=0x00;
zhouqi=(u16)(1000000/frequence);
}
}
/*
//NE555频率测量
u16 cnt_ne555;
u16 freq_ne555;
void vNE555_Process()
{
cnt_ne555++;
if(cnt_ne555>=100) //精确的100ms
{
cnt_ne555=0;
freq_ne555 = ((TH0<<8)|TL0)*10;
TL0 = 0;
TH0 = 0;
}
}
*/iic.c
/* # I2C代码片段说明
1. 本文件夹中提供的驱动代码供参赛选手完成程序设计参考。
2. 参赛选手可以自行编写相关代码或以该代码为基础，根据所选单片机类型、运行速度和试题
中对单片机时钟频率的要求，进行代码调试和修改。
*/
#define DELAY_TIME 5
#include "iic.h"
sbit scl=P2^0;
sbit sda=P2^1;
void Delay5ms() //@12.000MHz
{
unsigned char i, j;
i = 59;
j = 90;
do
{
while (--j);
} while (--i);
}
//
static void I2C_Delay(unsigned char n)
{
do
{
_nop_();_nop_();_nop_();_nop_();_nop_();
_nop_();_nop_();_nop_();_nop_();_nop_();
_nop_();_nop_();_nop_();_nop_();_nop_();
}
while(n--);
}
//
void I2CStart(void)
{
sda = 1;
scl = 1;
I2C_Delay(DELAY_TIME);
sda = 0;
I2C_Delay(DELAY_TIME);
scl = 0;
}
//
void I2CStop(void)
{
sda = 0;
scl = 1;
I2C_Delay(DELAY_TIME);
sda = 1;
I2C_Delay(DELAY_TIME);
}
//
void I2CSendByte(unsigned char byt)
{
unsigned char i;
for(i=0; i<8; i++){
scl = 0;
I2C_Delay(DELAY_TIME);
if(byt & 0x80){
sda = 1;
}
else{
sda = 0;
}
I2C_Delay(DELAY_TIME);
scl = 1;
byt <<= 1;
I2C_Delay(DELAY_TIME);
}
scl = 0;
}
//
unsigned char I2CReceiveByte(void)
{
unsigned char da;
unsigned char i;
for(i=0;i<8;i++){
scl = 1;
I2C_Delay(DELAY_TIME);
da <<= 1;
if(sda)
da |= 0x01;
scl = 0;
I2C_Delay(DELAY_TIME);
}
return da;
}
//
unsigned char I2CWaitAck(void)
{
unsigned char ackbit;
scl = 1;
I2C_Delay(DELAY_TIME);
ackbit = sda;
scl = 0;
I2C_Delay(DELAY_TIME);
return ackbit;
}
//
void I2CSendAck(unsigned char ackbit)
{
scl = 0;
sda = ackbit;
I2C_Delay(DELAY_TIME);
scl = 1;
I2C_Delay(DELAY_TIME);
scl = 0;
sda = 1;
I2C_Delay(DELAY_TIME);
}
//ADC,DAC的功能 他的读是读出上一次的数，所以要空读一次，才能得到想要的值
//电压采集 add=0x43
//光敏采集 add=0x41
u8 ADC_read(u8 add)
{
u8 temp=0;
I2CStart();
I2CSendByte(0x90);
I2CWaitAck();
I2CSendByte(add);
I2CWaitAck();
I2CStart();
I2CSendByte(0x91);
I2CWaitAck();
temp=I2CReceiveByte();
I2CSendAck(1);
I2CStop();
return temp;
}