ms5540 keil 编程实例

/**************************************************************************** * 文 件 名：ms5534b.c * 说 明： PB2=>SCLK (时钟信号) PB1=>DOUT (数据输出) PB0=>DIN (数据输入) ***************************************************************************/ //ICC-AVR application builder : 2009-8-5 9:46:41 // Target : 2313 // Crystal: 3.6864Mhz #include <iot2313v.h> #include <macros.h> #define fosc 3686400 #define baud 9600 unsigned int WORD1,WORD2,WORD3,WORD4; unsigned int C1,C2,C3,C4,C5,C6; unsigned int D1,D2; unsigned char bit,PINC_DATA; unsigned char hzcount; unsigned char U_DATA[6]; unsigned char start_second; unsigned char WTX400[6],start_frist,stop_second,WTX400_timers,CrcData; unsigned int UT1; unsigned long TEMP,TEMP1,dT; unsigned int OFF,SENS,X,P; unsigned char negative; void USART_Transmit( unsigned char data ) { /* 等待发送缓冲器为空 */ while ( !( UCSRA & (1<<UDRE)) ); /* 将数据放入缓冲器，发送数据 */ UDR = data; } void port_init(void) { PORTB = 0x00; DDRB = 0x0D; PORTD = 0x03; DDRD = 0x03; } //UART0 initialisation // desired baud rate: 9600 // actual: baud rate:9600 (0.0%) // char size: 8 bits // parity: Disabled void uart0_init(void) { UCSRB = 0x00; //disable while setting baud rate UCSRA = 0x00; UCSRC = (1<<USBS)|(3<<UCSZ0); UBRRL = (fosc/16/baud-1)%256; //set baud rate lo UBRRH =( fosc/16/baud-1)/256; //set baud rate hi UCSRB = (1<<RXCIE)|(1<<RXEN)|(1<<TXEN); } //TIMER1 initialisation - prescale:1024 // WGM: 0) Normal, TOP=0xFFFF // desired value: 1Hz // actual value: 1.000Hz (0.0%) void timer1_init(void) { TCCR1B = 0x00; //stop timer TCNT1H = 0xF1; /*INVALID SETTING*/; //set count value TCNT1L = 0x99; /*INVALID SETTING*/; TCCR1B = 0x00; //stopo Timer } #pragma interrupt_handler timer1_ovf_isr:6 void timer1_ovf_isr(void) { //TIMER1 has overflowed TCNT1H = 0xF1; //reload counter high value TCNT1L = 0x99; //reload counter low value bit=1; } //******************************************************* void delay1ms(unsigned int data_1ms) { unsigned int i; for(i=0;i<data_1ms;i++) { //******** TCCR1B = 0x01; //Start Timer while(bit!=1);//1ms TCCR1B = 0x00; //Stop Timer bit=0; //******* } } //************************读数据-WORD*************************** unsigned int READ_MS5534B_WORD(unsigned int seq,unsigned char ADC_data) { unsigned char VBUF,count,count1,i; unsigned char data3; unsigned int bit_ctr,data1,data2; data2=seq; bit_ctr=0x0001; count1=15; //USART_Transmit(data/256); //USART_Transmit(ADC_data%256); for (count=0;count<ADC_data;count++) { if((data2&bit_ctr)==0x0000) { PORTB&=~BIT(PB0);//PB0=0; PORTB&=~BIT(PB2);//PB2=0 delay1ms(1); PORTB|=BIT(PB2);//PB2=1 delay1ms(1); } //000000000000000000000000000000000000000000000000000 else { PORTB|=BIT(PB0);//PB0=1; PORTB&=~BIT(PB2);//PB2=0 delay1ms(1); PORTB|=BIT(PB2);//PB2=1 delay1ms(1); } //1111111111111111111111111111111111111111111111111111 bit_ctr=bit_ctr*2; } PORTB&=~BIT(PB2);//PB2=0 delay1ms(1); PORTB|=BIT(PB2);//PB2=1 delay1ms(1); PORTB&=~BIT(PB2);//PB2=0 delay1ms(1); for (count=0;count<16;count++) { PORTB|=BIT(PB2); //PB2=1 delay1ms(1); VBUF=PINB; PORTB&=~BIT(PB2);//PB2=0 delay1ms(1); VBUF=VBUF&0x02; // READ PB1 if(VBUF==0x02) data1|=BIT(count1); else if(VBUF==0x00) data1&=~BIT(count1); count1--; } PORTB|=BIT(PB2);//PB2=1 delay1ms(1); PORTB&=~BIT(PB2);//PB2=0 delay1ms(1); return data1; } //************************读数据-D*************************** unsigned int READ_MS5534B_D(unsigned int seq,unsigned char ADC_data) { unsigned char VBUF,count,count1,i; unsigned char data3; unsigned int bit_ctr,data1,data2; data2=seq; bit_ctr=0x0001; count1=15; //USART_Transmit(data/256); // USART_Transmit(data%256); for (count=0;count<ADC_data;count++) { if((data2&bit_ctr)==0x0000) { PORTB&=~BIT(PB0);//PB0=0; PORTB&=~BIT(PB2);//PB2=0 delay1ms(1); PORTB|=BIT(PB2);//PB2=1 delay1ms(1); } //000000000000000000000000000000000000000000000000000 else { PORTB|=BIT(PB0);//PB0=1; PORTB&=~BIT(PB2);//PB2=0 delay1ms(1); PORTB|=BIT(PB2);//PB2=1 delay1ms(1); } //1111111111111111111111111111111111111111111111111111 bit_ctr<<=1; } for(count=0;count<2;count++) { PORTB&=~BIT(PB2);//PB2=0 delay1ms(1); PORTB|=BIT(PB2);//PB2=1 delay1ms(1); } PORTB&=~BIT(PB2);//PB2=0 delay1ms(33); /* while((PINC_DATA&0x02)==0x00) PINC_DATA=PINB; while((PINC_DATA&0x02)==0x02) PINC_DATA=PINB; */ for (count=0;count<16;count++) { PORTB|=BIT(PB2); //PB2=1 delay1ms(1); PORTB&=~BIT(PB2);//PB2=0 delay1ms(1); VBUF=PINB; VBUF=VBUF&0x02; // READ PB1 if(VBUF==0x02) data1|=BIT(count1); else if(VBUF==0x00) data1&=~BIT(count1); count1--; } /* PORTB|=BIT(PB2);//PB2=1 delay1ms(1); PORTB&=~BIT(PB2);//PB2=0 delay1ms(1); */ return data1; } /* void hextohz(unsigned long ldata) { unsigned char hexhz[6]; hexhz[0] = ldata/100000; hexhz[1] = ldata/10000-hexhz[0]*10; hexhz[2] = ldata/1000-ldata/10000*10; hexhz[3] = ldata/100-ldata/1000*10; hexhz[4] = ldata/10-ldata/100*10; hexhz[5] = ldata%10; U_DATA[0] = hexhz[0]*16+hexhz[1]; U_DATA[1] = hexhz[2]*16+hexhz[3]; U_DATA[2] = hexhz[4]*16+hexhz[5]; } */ #pragma interrupt_handler uart0_rx_isr:8 void uart0_rx_isr(void) { unsigned char PRESS; // USART_Transmit(UDR); PRESS=UDR; //USART_Transmit(PRESS); if(start_second==1) WTX400[WTX400_timers++]=PRESS; if(PRESS==0x10) start_frist=1; else if((start_frist==1)&(PRESS==0x02)) {start_second=1;start_frist=0;} else if((start_frist==1)&(PRESS==0x03)) stop_second=1; //else if((start_frist==1)&(PRESS!=0x02)&(PRESS!=0x03)) // start_frist=0; if(stop_second==1) { stop_second=0; start_second=0; start_frist=0; WTX400_timers=0; } //uart has received a character in UDR } //call this routine to initialize all peripherals void init_devices(void) { //stop errant interrupts until set up CLI(); //disable all interrupts port_init(); timer1_init(); uart0_init(); MCUCR = 0x00; TIMSK = 0x80; SEI(); //re-enable interrupts //all peripherals are now initialized } //******************************************* void main() { init_devices(); bit=0; PORTB&=~BIT(PB2); delay1ms(1000); WORD1 = READ_MS5534B_WORD(0x0157,12); //WORD1; WORD2 = READ_MS5534B_WORD(0x00D7,12); //WORD2; WORD3 = READ_MS5534B_WORD(0x0137,12); //WORD3; WORD4 = READ_MS5534B_WORD(0x00B7,12); //WORD4; delay1ms(40); C1 = WORD1/2; C2 = (WORD3%64)*64+(WORD4%64);//C2 = (WORD4%64)*64+(WORD3%64); C3 = WORD4/64; C4 = WORD3/64; C5 = (WORD1%2)*1024+(WORD2/64); C6 = WORD2%64; /* cc0=C1/256; cc1=C1%256; cc2=C2/256; cc3=C2%256; cc4=C3/256; cc5=C3%256; cc6=C4/256; cc7=C4%256; cc8=C5/256; cc9=C5%256; cc10=C6/256; cc11=C6%256; */ while(1) { /* USART_Transmit(WORD1/256); USART_Transmit(WORD1%256);//reset(); USART_Transmit(WORD2/256); USART_Transmit(WORD2%256);//reset(); USART_Transmit(WORD3/256); USART_Transmit(WORD3%256);//reset(); USART_Transmit(WORD4/256); USART_Transmit(WORD4%256);//reset(); */ D1 = READ_MS5534B_D(0x002F,10); //D1; //reset(); D2 = READ_MS5534B_D(0x004F,10); //D2; //reset(); /* UT1 = 8*C5+20224; if(D2>UT1) { dT = D2-UT1; TEMP = 200