C8051F005的简介及DA/AD程序

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简介：本文主要介绍了C8051F005的DA驱动程序(C语言)。

C8051F005的DA驱动程序(C语言)

//-----------------------------------------------------------------------------

// Includes

//-----------------------------------------------------------------------------

#include // SFR declarations

#include

//-----------------------------------------------------------------------------

// 16-bit SFR Definitions for 'F00x

//-----------------------------------------------------------------------------

sfr16 DP = 0x82; // data pointer

sfr16 TMR3RL = 0x92; // Timer3 reload value

sfr16 TMR3 = 0x94; // Timer3 counter

sfr16 ADC0 = 0xbe; // ADC0 data

sfr16 ADC0GT = 0xc4; // ADC0 greater than window

sfr16 ADC0LT = 0xc6; // ADC0 less than window

sfr16 RCAP2 = 0xca; // Timer2 capture/reload

sfr16 T2 = 0xcc; // Timer2

sfr16 DAC0 = 0xd2; // DAC0 data

sfr16 DAC1 = 0xd5; // DAC1 data

//-----------------------------------------------------------------------------

// Function PROTOTYPES

//-----------------------------------------------------------------------------

void SYSCLK_Init (void);

//-----------------------------------------------------------------------------

// MAIN Routine

//-----------------------------------------------------------------------------

void main (void){

WDTCN = 0xde; // disable watchdog timer

WDTCN = 0xad;

SYSCLK_Init (); // initialize oscillator

REF0CN = 0x03; // Reference Control Register

//----------------------------------------------------------------------------

// DAC Configuration

//----------------------------------------------------------------------------

DAC0CN = 0x80; // DAC0 Control Register

DAC1CN = 0x80; // DAC1 Control Register

while(1)

{

DAC0L = 0xAB; // DAC0 Low Byte Register

DAC0H = 0x0C; // DAC0 High Byte Register

DAC1L = 0xAB; // DAC1 Low Byte Register

DAC1H = 0x0C; // DAC1 High Byte Register

}

//-----------------------------------------------------------------------------

// Initialization Subroutines

//-----------------------------------------------------------------------------

// Oscillator Configuration

//-----------------------------------------------------------------------------

void SYSCLK_Init (void)

{

int i; // delay counter

OSCXCN = 0x67; // start external oscillator with

// 18.432MHz crystal

for (i=0; i < 256; i++) ; // XTLVLD blanking interval (>1ms)

while (!(OSCXCN & 0x80)) ; // Wait for crystal osc. to settle

OSCICN = 0x88; // select external oscillator as SYSCLK

// source and enable missing clock

// detector

}

C8051F005的AD驱动程序(C语言)

//-----------------------------------------------------------------------------

// Includes

//-----------------------------------------------------------------------------

#include

//-----------------------------------------------------------------------------

// Function PROTOTYPES

//-----------------------------------------------------------------------------

#define uchar unsigned char

#define uint unsigned int

void SYSCLK_Init (void);

void delaynus(unsigned int q) ; //N us延时函数

void PORT_Init (void);

void SPI0_Init (void);

void LCD_Init(void);

void SendSPIByte(unsigned char ch);

void delaynms (unsigned int j);

void writecom(unsigned char com);

void writedata(unsigned char d);

void writechar(unsigned char ua);

void lcd_Net(void);

void Write_COM(uchar ins);

void SendSPIByte(uchar disdata);

void lcden(datad);

void LCD_set_xy( unsigned char x, unsigned char y );

void lcd_xhl(void);

void LCD_write_string(unsigned char n);

void lcd_adc(void);

void UART0_Init (void);

void ADC (void);

sbit lcdcs=P3^0;

//-----------------------------------------------------------------------------

// Global CONSTANTS

//-----------------------------------------------------------------------------

#define BAUDRATE 115200 // Baud rate of UART in bps

#define SYSCLK 11059200 // SYSCLK frequency in Hz

#define SAMPLE_RATE 50000 // Sample frequency in Hz

#define INT_DEC 4096 // integrate and decimate ratio

sfr16 DP = 0x82; // data pointer

sfr16 TMR3RL = 0x92; // Timer3 reload value

sfr16 TMR3 = 0x94; // Timer3 counter

sfr16 ADC0 = 0xbe; // ADC0 data

sfr16 ADC0GT = 0xc4; // ADC0 greater than window

sfr16 ADC0LT = 0xc6; // ADC0 less than window

sfr16 RCAP2 = 0xca; // Timer2 capture/reload

sfr16 T2 = 0xcc; // Timer2

sfr16 DAC0 = 0xd2; // DAC0 data

sfr16 DAC1 = 0xd5; // DAC1 data

unsigned char xdata ADC1Data[4];

unsigned int xdata ad_arr[50];

unsigned char datad ,comd,kk,sdf,ppca;

unsigned char virt_port,v,b,m;

unsigned char lcd_data_count;

unsigned char *lcdpoint;

unsigned char qqq;

unsigned char data8;

unsigned int i;

unsigned int AD_MAXT;

unsigned int AD_MINT;

long AD_VAL,AD_VAL_TEST;

unsigned char YYY;

long result;

long fff;

long hhh;

int j,w,z; // temperature in hundredths of a

unsigned int fff_int, fff_frac;

unsigned char p=0,a=0,s,d,f,g=0;

//-----------------------------------------------------------------------------

// MAIN Routine

//-----------------------------------------------------------------------------

void main(void){

WDTCN = 0xde; // disable watchdog timer

WDTCN = 0xad;

SYSCLK_Init ();

PORT_Init ();

UART0_Init() ; // initialize crossbar and GPIO

SPI0_Init ();

LCD_Init() ;

delaynms(100);

Write_COM(0x00);

delaynms(100);

Write_COM(0x01);

delaynms(100);

delaynus (100);

LCD_set_xy(0X00,0);

delaynus (200);

lcd_adc();

delaynus (200);

LCD_write_string(5);

delaynms (100);

while (1)

{

delaynms (100);

ADC ();

}

//-----------------------------------------------------------------------------

// Initialization Subroutines

//-----------------------------------------------------------------------------

// ADC

//-----------------------------------------------------------------------------

void ADC (void)

{

AMX0CF = 0x60;// AMUX Configuration Register

AMX0SL = 0x00;// AMUX Channel Select Register

ADC0CN = 0x00;// ADC Control Register

REF0CN = 0x03;

ADC0CN |= 0x80;

AD_VAL=0;

AD_VAL_TEST = 0;

for( YYY = 0;YYY<50;YYY++)

{

ad_arr[YYY]=0;

}

YYY=0;

ADCINT = 0;

for(YYY= 0;YYY<50;YYY++) //AD_TIMES=50

{

ADBUSY = 1;

while (!ADCINT);

ADCINT = 0;

_nop_();

_nop_(); //*AD_POINTER = ADC0

ad_arr[YYY]=ADC0;

}

for(YYY=0;YYY<50;YYY++)// for(i = 0;i<ad_times;i++)

{

AD_VAL_TEST += ad_arr[YYY];

}

AD_VAL = (int)(AD_VAL_TEST/50);

_nop_();

hhh=AD_VAL*5;

hhh=hhh*5;

hhh=hhh*100;

hhh=hhh/4096;

ADC1Data[0]=hhh/1000; //将A/D转化值存到显示数组

ADC1Data[1]=(hhh-1000*ADC1Data[0])/100;

ADC1Data[2]=(hhh-1000*ADC1Data[0]-100*ADC1Data[1])/10;

ADC1Data[3]=hhh-1000*ADC1Data[0]-100*ADC1Data[1]-10*ADC1Data[2];

delaynus (100);

LCD_set_xy(0X05,0);

delaynus (200);

for(qqq=0;qqq<4;qqq++)

{

data8=ADC1Data[qqq];

if(data8>=0x0a) data8 += 0x37;

else data8 += 0x30;

delaynms (200);

writechar(data8);

}

AD_VAL=0;

}

//-----------------------------------------------------------------------------

// PORT_Init

//-----------------------------------------------------------------------------

void PORT_Init (void)

{

XBR0 = 0x27; // XBAR0: Initial Reset Value

XBR1 = 0x00; // XBAR1: Initial Reset Value

XBR2 = 0x5c; // XBAR2: Initial Reset Value

PRT0CF = 0x14; // Output configuration for P0

PRT1CF = 0x10; // Output configuration for P3

PRT3CF = 0x01; // Output configuration for P3

}

//-----------------------------------------------------------------------------

// SYSCLK_Init

//-----------------------------------------------------------------------------

void SYSCLK_Init (void)

{

// delaynms counter

OSCXCN = 0x67; // start external oscillator with

for (i=0; i < 256; i++) ; // XTLVLD blanking interval (>1ms)

while (!(OSCXCN & 0x80)) ; // Wait for crystal osc. to settle

OSCICN = 0x88; // select external oscillator as SYSCLK

}

//-----------------------------------------------------------------------------

// SPI0_Init

//-----------------------------------------------------------------------------

void SPI0_Init (void)

{

SPI0CFG = 0x07; // data sampled on 1st SCK rising edge

SPI0CFG|=0xC0; //CKPOL =1;

SPI0CN = 0x03; // Master mode; SPI enabled; flags

SPI0CKR = SYSCLK/2/2000000-1; // SPI clock <= 8MHz (limited by

// EEPROM spec.)

}

//-----------------------------------------------------------------------------

// UART0_Init

//-----------------------------------------------------------------------------

void UART0_Init (void)

{

SCON = 0x50; // SCON: mode 1, 8-bit UART, enable RX

TMOD = 0x20; // TMOD: timer 1, mode 2, 8-bit reload

TH1 = -(SYSCLK/BAUDRATE/16); // set Timer1 reload value for baudrate

TR1 = 1; // start Timer1

CKCON |= 0x10; // Timer1 uses SYSCLK as time base

PCON |= 0x80; // SMOD = 1

TI = 1; // Indicate TX ready

}

//-----------------------------------------------------------------------------

// LCD_Init

//-----------------------------------------------------------------------------

void LCD_Init(void) //向LCD送命令

{

// unsigned int xdata x;

delaynms(100);

datad=0x00;

SendSPIByte(datad);

delaynms(10);

Write_COM(0x30);

delaynms(10);

Write_COM(0x30);

delaynms(10);

Write_COM(0x30);

delaynms(10) ;

Write_COM(0x28);

delaynms(100);

virt_port=0;

SendSPIByte(virt_port);

lcden(virt_port);

Write_COM(0x01);

delaynms(100);

Write_COM(0x06);

delaynms(10) ;

Write_COM(0x0C);

delaynms(500) ;

}

//-----------------------------------------------------------------------------

// SendSPIByte

//-----------------------------------------------------------------------------

void SendSPIByte(unsigned char ch)

{ lcdcs=1;

delaynus(100);

SPIF = 0;

SPI0DAT = ch;

while (SPIF == 0);

delaynus(100);

lcdcs=0;

delaynus(100);

_nop_(); // 等待写结束

}

//-----------------------------------------------------------------------------

// lcden

//-----------------------------------------------------------------------------

void lcden(datad)

{

datad|=0x08;

SendSPIByte(datad);

datad&=0xf7;

SendSPIByte(datad);

}

//-----------------------------------------------------------------------------

// delaynms

//-----------------------------------------------------------------------------

void delaynms (unsigned int uu)

{

unsigned int oo,ll;

for (oo=0;oo<uu;oo++)

{

for(ll=0;ll<1140;ll++);

}

//-----------------------------------------------------------------------------

// writechar

//-----------------------------------------------------------------------------

void writechar(unsigned char ua)

{

uint j;

uchar t,x;

for(j=0;j<500;j++);

datad|=0x02;

SendSPIByte(datad);

datad|=ua&0xf0;

SendSPIByte(datad);

datad|=0x08;

SendSPIByte(datad);

for(x=0;x<3;x++);

datad&=0xf7;

SendSPIByte(datad);

for(x=0;x<3;x++);

datad&=0x07;

delaynus(100);

SendSPIByte(virt_port);

t|=ua&0x0f;

datad|=t<<4;

SendSPIByte(datad);

for(x=0;x<3;x++);

datad|=0x08;

SendSPIByte(datad);

for(x=0;x<3;x++);

datad&=0xf7;

SendSPIByte(datad);

for(x=0;x<3;x++);

datad=0x00;

t=0x00;

SendSPIByte(datad);

}

//-----------------------------------------------------------------------------

// Write_COM

//-----------------------------------------------------------------------------

void Write_COM(uchar ins)

{

uchar t;

uint j;

for(j=0;j<5000;j++); //用延时代替查询

virt_port|=ins&0xf0;

SendSPIByte(virt_port);

//LCDE=1;

virt_port|=0x08;

SendSPIByte(virt_port);

for(i=3;i>0;i--);

//LCDE=0;

virt_port&=~0x08;

SendSPIByte(virt_port);

virt_port&=0x07;

SendSPIByte(virt_port);

t=ins<<4;

virt_port|=t&0xf0;

SendSPIByte(virt_port);

//LCDE=1;

virt_port|=0x08;

SendSPIByte(virt_port);

for(i=3;i>0;i--);

//LCDE=0;

virt_port&=~0x08;

SendSPIByte(virt_port);

virt_port=0;

SendSPIByte(virt_port);

}

//-----------------------------------------------------------------------------

// LCD_set_xy

//-----------------------------------------------------------------------------

void LCD_set_xy( unsigned char x, unsigned char y )

{

unsigned char address;

if (y == 0) address = 0x80 + x;

else

address = 0xc0 + x;

Write_COM(address);

}

//-----------------------------------------------------------------------------

// LCD_write_string

//-----------------------------------------------------------------------------

void LCD_write_string(unsigned char n)

{

unsigned char data1;

for(n;n>0;n--)

{

data1=*lcdpoint;

writechar(data1);

delaynms(100);

lcdpoint++;

delaynus(10);

}

//-----------------------------------------------------------------------------

// delaynus

//-----------------------------------------------------------------------------

void delaynus(unsigned int q) //N us延时函数

{

for (i=0;i<q;i++)

{

_nop_();

}

//-----------------------------------------------------------------------------

// lcd_adc

//-----------------------------------------------------------------------------

void lcd_adc(void)

{

unsigned char xdata ADC0Data[5]=;

lcdpoint=&ADC0Data;

}

利用C8051F005的DA,AD通过HD7279实现数据处理类问题(C语言)

//-----------------------------------------------------------------------------

// Includes

//-----------------------------------------------------------------------------

#include

//-----------------------------------------------------------------------------

// Function PROTOTYPES

//-----------------------------------------------------------------------------

#define uchar unsigned char

#define uint unsigned int

void SYSCLK_Init (void);

void PORT_Init (void);

void DAC (void);

void ADC (void);

void long_delay(void);// 长延时

void short_delay(void);// 短暂延时

void delay10ms(unsigned char);// 延时10MS

void delaynus(unsigned int q) ; //N us延时函数

void delaynms (unsigned int j);

void write7279(unsigned char, unsigned char);// 写入到HD7279

unsigned char read7279(unsigned char command);

void send_byte(unsigned char);// 发送一个字节

unsigned char receive_byte(void);

void DA_dispdata(void);

void AD_dispdata(void);

void dispStep();

void dispReset();

//-----------------------------------------------------------------------------

// Global CONSTANTS

//-----------------------------------------------------------------------------

#define BAUDRATE 115200 // Baud rate of UART in bps

#define SYSCLK 11059200 // SYSCLK frequency in Hz

#define SAMPLE_RATE 50000 // Sample frequency in Hz

#define INT_DEC 4096 // integrate and decimate ratio

sfr16 DP = 0x82; // data pointer

sfr16 TMR3RL = 0x92; // Timer3 reload value

sfr16 TMR3 = 0x94; // Timer3 counter

sfr16 ADC0 = 0xbe; // ADC0 data

sfr16 ADC0GT = 0xc4; // ADC0 greater than window

sfr16 ADC0LT = 0xc6; // ADC0 less than window

sfr16 RCAP2 = 0xca; // Timer2 capture/reload

sfr16 T2 = 0xcc; // Timer2

sfr16 DAC0 = 0xd2; // DAC0 data

sfr16 DAC1 = 0xd5; // DAC1 data

sbit cs=P3^2;// cs at P1.4

sbit clk=P3^3;// clk 连接于 P1.5

sbit dat=P3^1;// dat 连接于 P1.2

sbit key=P1^0;// key 连接于 P1.3

unsigned int xdata ad_arr[50];

unsigned char datad ,comd,kk,sdf,ppca;

unsigned char virt_port,v,b,m;

unsigned int tmr,ig,is,ib,iq,rg,rs,rb,rq;

unsigned char qqq;

unsigned char data8;

unsigned int i;

unsigned int AD_MAXT;

unsigned int AD_MINT;

long AD_VAL,AD_VAL_TEST;

unsigned char YYY;

long result;

long fff;

long hhh,ddd;

int j,w,z; // temperature in hundredths of a

unsigned int fff_int, fff_frac;

unsigned char p=0,a=0,s,d,f,g=0;

data unsigned char digit[5];

data unsigned char key_number, e, k;

unsigned long cnter;

unsigned long CurValue;

unsigned char CurStepLen;

unsigned long Decvalue0;

float Decvalue1,Decvalue2,Decvalue3;

/****** HD7279A 指令 ******/

#define CMD_RESET 0xa4

#define CMD_TEST 0xbf

#define DECODE0 0x80

#define DECODE1 0xc8

#define UNDECODE 0x90

#define RLC 0xa3

#define RRC 0xa2

#define RL 0xa1

#define RC 0xa0

#define HIDE 0x98

#define FLASH 0x88

#define SEGON 0xe0

#define SEGOFF 0xc0

#define CMD_READ 0x15

/***Main***/

void main(void)

{

WDTCN = 0xde; // disable watchdog timer

WDTCN = 0xad;

SYSCLK_Init ();

PORT_Init ();

cnter=0;

Decvalue0 = 0;

CurStepLen = 1;

for (tmr=0;tmr<0x2000;tmr++);// 上电延时

send_byte(CMD_RESET);

write7279(FLASH,0XFF);

write7279(HIDE,0x0f);

while (1)

{

key_number=0xff;

write7279(FLASH,0xf0);// 第1、2两位设为闪烁显示

write7279(UNDECODE ,0X08);// 在第1位显示下划线'_'

write7279(UNDECODE+1,0x08);// 在第2位显示下划线'_'

write7279(UNDECODE+2,0X08);

write7279(UNDECODE+3,0X08);

{

if (!key)// 如果有键按下

IE=0x81;

{

key_number=read7279(CMD_READ);// 读出键码

if (key_number < 0x0a) //0~9输入

{

digit[cnter] = key_number;

Decvalue0 = Decvalue0*10+digit[cnter];

send_byte(RLC); // delay10ms(12);

for(e=0;e<=cnter;e++)

{

write7279(DECODE1+3-e,digit[e]&0x0f);//delay10ms(5)

}

if (cnter==3)

{

DA_dispdata();

cnter=0;

}

else

}

if (key_number==0x0a) //ADD

{

Decvalue0 =Decvalue0 + CurStepLen;

DA_dispdata();

}

if (key_number==0x0b) //Dec

{

if (Decvalue0 > CurStepLen)

{

Decvalue0 =Decvalue0 - CurStepLen;

DA_dispdata();

}

if (key_number==0x0C) //Clear

{

send_byte(CMD_RESET);

write7279(HIDE,0x0f);

Decvalue0 = 0;

cnter=0;

dispReset();

}

if (key_number==0x0d) //Ok

{

write7279(FLASH,0xff);

DAC();// 清除闪烁设置

}

if (key_number==0x0E) // Change Step Len

{

write7279(FLASH,0xf0);

if ( CurStepLen ==1)

{

CurStepLen =10;

}

else{ CurStepLen =1;}

dispStep();

delay10ms(100);

write7279(FLASH,0xff);// DAData = CurValue;

}

if (key_number==0x0F) //Set Current Value

{

write7279(HIDE,0x0f);

Decvalue0 =0;

cnter=0;

write7279(FLASH,0xf0);// 第1、2两位设为闪烁显示

for (e=0;e<4;e++)

write7279(UNDECODE+e,0X08); // 在第1位显示下划线'_'

// dispStep();

// DAData = CurValue;

}

key_number = 0xff;

while (!key);

IE=0x00;

} while(1);// 等待按键放开

}

/***DAC***/

void DAC (void)

{

REF0CN = 0x03; // Reference Control Register

DAC0CN = 0x80; // DAC0 Control Register

DAC0L = 0xFF; // DAC0 Low Byte Register

DAC0H = 0x0F; %2

C8051F005的中文数据简介

模拟外设

8051 兼容的微控制器内核

100KSPS ADC

12 位流水线指令结构 70%的指令的执行时间为一个或两 1LSB INL

个系统时钟周期无失码

时钟频率为 25MHz时速度可达 25MIPS 可编程转换速率增强的中断系统

最大 100ksps 可有最多 22个中断源

可编程为单端输入或差分输入 8个外部输入存储器

16 8 4 2 1 0.5 可编程放大器增益 2304字节数据存储器数据相关窗口中断发生器 32K 字节闪速存储器可以在系统编程扇区大小为内置温度传感器 3°C

512字节

两个 12 位 DAC

数字外设电压输出 32个 I/O口线所有口线均容许 5V电压

2 TM TM TM 10微秒建立时间

C /SMBus SPI 可同时使用的硬件 I 及 UART串

两个比较器

口 16个可编程滞回电压值 16 位可编程的计数器/定时器阵列带 5 个捕获/比较可用于产生中断或复位

模块每一个都可配置为 8位 PWM

基准源 4个通用 16位计数器/定时器 2.4V

15ppm/°C 双向复位专用的看门狗定时器外部基准输入时钟源

VDD 监视器和节电降压检测器内部可编程振荡器 2-16MHz

片内 JTAG 仿真外部振荡器晶体 RC C 或外部时钟片内 JTAG 仿真电路提供全速非侵入式的电路内节电模式时使用可在运行中切换时钟源

仿真供电电压………………………………2.7V - 3.6V 典型工作电流支持断点

单步观察点 12mA @ 25MHz 观察/修改存储器和寄存器多种节电休眠和停机模式比使用仿真芯片目标仿真头和仿真插座的仿真系 64 脚 TQFP 封装

-40°C - +85°C

统有更好的性能温度范围

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