我想設置在某一氣壓下不同的led燈閃爍,但是不好使,麻煩大神幫忙修改
- #define uchar unsigned char
- #define uint unsigned int
- #define DataPort P0
- sbit SCL=P2^3;
- sbit SDA=P2^4;
- sbit LCM_RS=P1^0;
- sbit LCM_RW=P1^1;
- sbit LCM_EN=P2^5;
- sbit led1=P1^5;
- sbit led2=P1^6;
- sbit led3=P1^7;
- #define BMP180_SlaveAddress 0xee
- #define OSS 0 // Oversampling Setting (note: code is not set up to use other OSS values)
-
- typedef unsigned char BYTE;
- typedef unsigned short WORD;
- uint pressurewarn;
- uchar ge,shi,bai,qian,wan,shiwan;
- int dis_data;
- short ac1;
- short ac2;
- short ac3;
- unsigned short ac4;
- unsigned short ac5;
- unsigned short ac6;
- short b1;
- short b2;
- short mb;
- short mc;
- short md;
- void delay(unsigned int k);
- void InitLcd();
- void WriteDataLCM(uchar dataW);
- void WriteCommandLCM(uchar CMD,uchar Attribc);
- void DisplayOneChar(uchar X,uchar Y,uchar DData);
- void conversion(long temp_data);
- //void warn(uint pressure);
- void Single_Write(uchar SlaveAddress,uchar REG_Address,uchar REG_data);
- uchar Single_Read(uchar REG_Address);
- void Multiple_Read(uchar,uchar);
- void Delay5us();
- void Delay5ms();
- void BMP180_Start();
- void BMP180_Stop();
- void BMP180_SendACK(bit ack);
- bit BMP180_RecvACK();
- void BMP180_SendByte(BYTE dat);
- BYTE BMP180_RecvByte();
- void BMP180_ReadPage();
- void BMP180_WritePage();
- void conversion(long temp_data)
- {
-
- shiwan=temp_data/100000+0x30 ;
- temp_data=temp_data%100000;
- wan=temp_data/10000+0x30 ;
- temp_data=temp_data%10000;
- qian=temp_data/1000+0x30 ;
- temp_data=temp_data%1000;
- bai=temp_data/100+0x30 ;
- temp_data=temp_data%100;
- shi=temp_data/10+0x30 ;
- temp_data=temp_data%10;
- ge=temp_data+0x30;
- }
- void delay(unsigned int k)
- {
- unsigned int i,j;
- for(i=0;i<k;i++)
- {
- for(j=0;j<121;j++)
- {;}}
- }
- void WaitForEnable(void)
- {
- DataPort=0xff;
- LCM_RS=0;LCM_RW=1;_nop_();
- LCM_EN=1;_nop_();_nop_();
- while(DataPort&0x80);
- LCM_EN=0;
- }
- void WriteCommandLCM(uchar CMD,uchar Attribc)
- {
- if(Attribc)WaitForEnable();
- LCM_RS=0;LCM_RW=0;_nop_();
- DataPort=CMD;_nop_();
- LCM_EN=1;_nop_();_nop_();LCM_EN=0;
- }
- void WriteDataLCM(uchar dataW)
- {
- WaitForEnable();
- LCM_RS=1;LCM_RW=0;_nop_();
- DataPort=dataW;_nop_();
- LCM_EN=1;_nop_();_nop_();LCM_EN=0;
- }
- void InitLcd()
- {
- WriteCommandLCM(0x38,1);
- WriteCommandLCM(0x08,1);
- WriteCommandLCM(0x01,1);
- WriteCommandLCM(0x06,1);
- WriteCommandLCM(0x0c,1);
- }
- void DisplayOneChar(uchar X,uchar Y,uchar DData)
- {
- Y&=1;
- X&=15;
- if(Y)X|=0x40;
- X|=0x80;
- WriteCommandLCM(X,0);
- WriteDataLCM(DData);
- }
- void Delay5us()
- {
- _nop_();_nop_();_nop_();_nop_();
- _nop_();_nop_();_nop_();_nop_();
- _nop_();_nop_();_nop_();_nop_();
- _nop_();_nop_();_nop_();_nop_();
- }
- void Delay5ms()
- {
- WORD n = 560;
- while (n--);
- }
- void BMP180_Start()
- {
- SDA = 1;
- SCL = 1;
- Delay5us();
- SDA = 0;
- Delay5us();
- SCL = 0;
- }
- void BMP180_Stop()
- {
- SDA = 0;
- SCL = 1;
- Delay5us();
- SDA = 1;
- Delay5us();
- }
- void BMP180_SendACK(bit ack)
- {
- SDA = ack;
- SCL = 1;
- Delay5us();
- SCL = 0;
- Delay5us();
- }
- bit BMP180_RecvACK()
- {
- SCL = 1;
- Delay5us();
- CY = SDA;
- SCL = 0;
- Delay5us();
- return CY;
- }
- void BMP180_SendByte(BYTE dat)
- {
- BYTE i;
- for (i=0; i<8; i++)
- {
- dat <<= 1;
- SDA = CY;
- SCL = 1;
- Delay5us();
- SCL = 0;
- Delay5us();
- }
- BMP180_RecvACK();
- }
- BYTE BMP180_RecvByte()
- {
- BYTE i;
- BYTE dat = 0;
- SDA = 1;
- for (i=0; i<8; i++)
- {
- dat <<= 1;
- SCL = 1;
- Delay5us();
- dat |= SDA;
- SCL = 0;
- Delay5us();
- }
- return dat;
- }
- /*
- void Single_Write(uchar SlaveAddress,uchar REG_Address,uchar REG_data)
- {
- BMP180_Start();
- BMP180_SendByte(SlaveAddress);
- BMP180_SendByte(REG_Address);
- BMP180_SendByte(REG_data);
- BMP180_Stop();
- */
- /*
- uchar Single_Read(uchar REG_Address)
- { uchar REG_data;
- BMP180_Start();
- BMP180_SendByte(BMP180_SlaveAddress);
- BMP180_SendByte(REG_Address);
- BMP180_Start();
- BMP180_SendByte(BMP180_SlaveAddress+1);
- REG_data=BMP180_RecvByte();
- BMP180_SendACK(1);
- BMP180_Stop();
- return REG_data;
- }
- */
- short Multiple_read(uchar ST_Address)
- {
- uchar msb, lsb;
- short _data;
- BMP180_Start();
- BMP180_SendByte(BMP180_SlaveAddress);
- BMP180_SendByte(ST_Address);
- BMP180_Start();
- BMP180_SendByte(BMP180_SlaveAddress+1);
- msb = BMP180_RecvByte();
- BMP180_SendACK(0);
- lsb = BMP180_RecvByte();
- BMP180_SendACK(1);
- BMP180_Stop();
- Delay5ms();
- _data = msb << 8;
- _data |= lsb;
- return _data;
- }
- long bmp180ReadTemp(void)
- {
- BMP180_Start();
- BMP180_SendByte(BMP180_SlaveAddress);
- BMP180_SendByte(0xF4);
- BMP180_SendByte(0x2E);
- BMP180_Stop();
- delay(10);
-
- return (long) Multiple_read(0xF6);
- }
- long bmp180ReadPressure(void)
- {
- long pressure = 0;
- BMP180_Start();
- BMP180_SendByte(BMP180_SlaveAddress);
- BMP180_SendByte(0xF4);
- BMP180_SendByte(0x34);
- BMP180_Stop();
- delay(10);
-
- pressure = Multiple_read(0xF6);
- pressure &= 0x0000FFFF;
- pressurewarn=pressure;
- return pressurewarn;
-
- }
- void Init_BMP180()
- {
- ac1 = Multiple_read(0xAA);
- ac2 = Multiple_read(0xAC);
- ac3 = Multiple_read(0xAE);
- ac4 = Multiple_read(0xB0);
- ac5 = Multiple_read(0xB2);
- ac6 = Multiple_read(0xB4);
- b1 = Multiple_read(0xB6);
- b2 = Multiple_read(0xB8);
- mb = Multiple_read(0xBA);
- mc = Multiple_read(0xBC);
- md = Multiple_read(0xBE);
- }
- void bmp180Convert()
- {
- //long ut;
- long up;
- long x1, x2, b5, b6, x3, b3, p;
- unsigned long b4, b7;
- // long temperature;
- long pressure;
-
- // ut = bmp180ReadTemp();
- // ut = bmp180ReadTemp();
- //up = bmp180ReadPressure();
- up = bmp180ReadPressure();
-
- /* x1 = ((long)ut - ac6) * ac5 >> 15;
- x2 = ((long) mc << 11) / (x1 + md);
- b5 = x1 + x2;
- temperature = (b5 + 8) >> 4;
- conversion(temperature);
- DisplayOneChar(0,0,'W');
- DisplayOneChar(1,0,'e');
- DisplayOneChar(2,0,'n');
- DisplayOneChar(3,0,'D');
- DisplayOneChar(4,0,'u');
- DisplayOneChar(5,0,':');
- DisplayOneChar(7,0,bai);
- DisplayOneChar(8,0,shi);
- DisplayOneChar(9,0,'.');
- DisplayOneChar(10,0,ge);
- DisplayOneChar(11,0,0XDF);
- DisplayOneChar(12,0,'C'); */
-
-
-
- b6 = b5 - 4000;
- x1 = (b2 * (b6 * b6 >> 12)) >> 11;
- x2 = ac2 * b6 >> 11;
- x3 = x1 + x2;
- b3 = (((long)ac1 * 4 + x3) + 2)/4;
- x1 = ac3 * b6 >> 13;
- x2 = (b1 * (b6 * b6 >> 12)) >> 16;
- x3 = ((x1 + x2) + 2) >> 2;
- b4 = (ac4 * (unsigned long) (x3 + 32768)) >> 15;
- b7 = ((unsigned long) up - b3) * (50000 >> OSS);
- if( b7 < 0x80000000)
- p = (b7 * 2) / b4 ;
- else
- p = (b7 / b4) * 2;
- x1 = (p >> 8) * (p >> 8);
- x1 = (x1 * 3038) >> 16;
- x2 = (-7357 * p) >> 16;
- pressure = p + ((x1 + x2 + 3791) >> 4);
- conversion(pressure);
- DisplayOneChar(0,1,'Q');
- DisplayOneChar(1,1,'i');
- DisplayOneChar(2,1,'Y');
- DisplayOneChar(3,1,'a');
- DisplayOneChar(5,1,':');
- DisplayOneChar(6,1,shiwan);
- DisplayOneChar(7,1,wan);
- DisplayOneChar(8,1,qian);
- DisplayOneChar(9,1,'.');
- DisplayOneChar(10,1,bai);
- DisplayOneChar(11,1,shi);
- DisplayOneChar(12,1,'K');
- DisplayOneChar(13,1,'p');
- DisplayOneChar(14,1,'a');
- }
- void Warn(uint pressurewarn)
- {
- if(pressurewarn==199.97)
- {
-
- led2=0;
- delay(500);
- led2=1;
- delay(500);
- }
- if(pressurewarn>=199.88)
- {
-
- led3=1;
- delay(500);
- led3=0;
- delay(500);
- }
-
- if(pressurewarn<=99.99)
- {
- led1=0;
- delay(500);
- led1=1;
- delay(500);
- }
- }
- void main()
- {
-
- delay(50);
- InitLcd();
- Init_BMP180();
- while(2)
- {
- bmp180Convert();
- delay(1000);
- Warn(pressurewarn);
- }
- }
復制代碼 |