ADC.zip_飞凌 ADC

#define ULCON0 (*(volatile unsigned *)0x50000000) //UART线控制寄存器 #define UCON0 (*(volatile unsigned *)0x50000004) //UART控制寄存器 #define UTRSTAT0 (*(volatile unsigned*)0x50000010) //UART状态寄存器 #define UBRDIV0 (*(volatile unsigned *)0x50000028) //波特率 #define UTXH0 (*(volatile unsigned *)0x50000020) #define URXH0 (*(volatile unsigned *)0x50000024) #define GPHCON (*(volatile unsigned *)0x56000070) #define GPHDAT (*(volatile unsigned *)0x56000074) #define GPHUP (*(volatile unsigned *)0x56000078) #define MPLLCON (*(volatile unsigned *)0x4C000004) #define CLKDIVN (*(volatile unsigned *)0x4C000014) #define ADCCON (*(volatile unsigned *)0x58000000) #define ADCTSC (*(volatile unsigned *)0x58000004) #define ADCDLY (*(volatile unsigned *)0x58000008) #define ADCDAT0 (*(volatile unsigned *)0x5800000C) #define ADCDAT1 (*(volatile unsigned *)0x58000010) #define ADCUPDN (*(volatile unsigned *)0x58000014) int a,b,c,d,e,f; void uart_send(char * c) { for (; *c != '\0'; c++) { while(!(UTRSTAT0 & 0x02)) ; //不断查询，直到可以发送数据 UTXH0 = *c ; //发送数据 } } void initpll() { MPLLCON=0x98041; //初始化锁相环 CLKDIVN=0x05; //0000 0101 } void inituart() { ULCON0=0x03; //1位起始位，8位数据位 UCON0 =0x0805; //串口时钟PCLK,查询方式 UBRDIV0 =0x15; //波特率115200---40000000/(115200*16)-1=21.7-1=21 } void initgpio() { GPHCON |=0xa0; // set to rxd and txd GPHUP |=0x0c; // pull up } int readadc() { ADCCON |=0x1; while(ADCCON & 0x01); while(!(ADCCON & 0x8000)); return ((int)ADCDAT0 & 0x3ff); } void Delay(unsigned char time) { unsigned char x,y; for(x=time;x>0;x--) for(y=110;y>0;y--); } void main() { unsigned char dd[4]; float ss; initpll(); inituart(); initgpio(); uart_send("If you want to quit ,please pess 'e'\r\n"); ADCCON=(19<<6)|(1<<14); while(1) { a=readadc(); ss=(float)a/1024*1000*3.3; f=(int)ss; dd[0]=f/1000+0x30; dd[1]=f%1000/100+0x30; dd[2]=f%1000%100/10+0x30; dd[3]=f%10+0x30; while(!(UTRSTAT0 & 0x02)); UTXH0=dd[0]; while(!(UTRSTAT0 & 0x02)); UTXH0=46; while(!(UTRSTAT0 & 0x02)); UTXH0=dd[1]; while(!(UTRSTAT0 & 0x02)); UTXH0=dd[2]; while(!(UTRSTAT0 & 0x02)); UTXH0=dd[3]; while(!(UTRSTAT0 & 0x02)); UTXH0=86; while(!(UTRSTAT0 & 0x2)); UTXH0='\n'; Delay(800); } }