
AD0809的采集程序
//---A/D转换---
//-----头文件引用------
#include <Reg51h>
#include <absacch>
#include <intrinsh>
typedef unsigned char BYTE; /自定义字节类型/
#define Set_Bit(BIT) (BIT = 1) /定义置1函数/
#define Clear_Bit(BIT) (BIT = 0) /定义清0函数/
//
void Write_Hd7279(BYTE,BYTE); /定义HD7279写函数/
BYTE Read_Hd7279(BYTE); /定义HD7279读函数/
void Send_Byte(BYTE); /定义HD7279发送字节函数/
BYTE Receive_Byte(void); /定义HD7279接收字节函数/
void Short_Delay(void); /定义短延时函数/
void Long_Delay(void); /定义长延时函数/
void Mcu_Init(void); /定义MCU初始化函数/
void Delay_200_mS(void); /定义200ms延时函数/
sbit Hd7279_Clk=P1^6; /定义HD7279时钟硬件连接/
sbit Hd7279_Data=P1^5; /定义HD7279数据硬件连接/
sbit cs=P1^7;
void Short_Delay(void) /短延时函数/
{
BYTE i;
for(i=0;i<0x08;i++);
}
//
void Long_Delay(void) /长延时函数/
{
BYTE i;
for(i=0;i<0x30;i++);
}
//
void Write_Hd7279(BYTE Command,BYTE Data) /HD7279写函数/
{
Send_Byte(Command);
Send_Byte(Data);
}
//
void Send_Byte(BYTE Data_Out) /HD7279发送字节函数/
{
BYTE i;
cs=0;
Long_Delay();
for(i=0;i<8;i++)
{
if(Data_Out&0x80) Set_Bit(Hd7279_Data);
else Clear_Bit(Hd7279_Data);
Set_Bit(Hd7279_Clk);
Short_Delay();
Clear_Bit(Hd7279_Clk);
Short_Delay();
Data_Out=Data_Out<<1;
}
Clear_Bit(Hd7279_Data);
}
//-----宏声明-----
#define A_DPORT XBYTE[0xFef3]//0809通道0地址
#define uchar unsigned char
//-----变量定义-----
bit bdata bz=0;//定义标志
uchar val;
//-----初始化-----
void first(void)
{
P1=0xff;
P2=0xff;
P3=0xff;
P0=0xff;
Send_Byte(0xa4);
IT1=1;
EX1=1;
EA=1; //INT0 允许
}
//-----中断-----
void int_0(void) interrupt 2
{
val=A_DPORT; //读 A_D 数据
bz=1; //置读数标志
}
//-----主程序-----
main()
{
first(); //初始化
while(1)
{
A_DPORT=val; //启动 A_D
while(bz==0); //等待 A_D 转换结束
// val=~A_DPORT;
//P1=val; //数据输出
Write_Hd7279(0xc8,val&0x0f);
Write_Hd7279(0xc9,val>>4);
Write_Hd7279(0x92,0x00);
Write_Hd7279(0x93,0x00);
Write_Hd7279(0x94,0x00);
Write_Hd7279(0x95,0x00);
Write_Hd7279(0xce,0x0d);
Write_Hd7279(0xcf,0);
bz=0; //清读数标志
}
}
这就是C的程序
>
应该不是判断忙碌或者不只是判断忙碌,这个语句应该是送了一串命令进去
//HD44780 LCD DRIVER
#include <AT89X52H>
#include <ctypeh>
//LCD Commands
#define LCD_CLS 1 //Clears entire display and sets DDRAM address 0
#define LCD_HOME 2 //Sets DDRAM address 0 in address counter
#define LCD_SETMODE 4 //Sets cursor move direction and specifies display shift
#define LCD_SETVISIBLE 8 //Sets entire display (D) on/off,cursor on/off (C), and blinking of cursor position character (B)
#define LCD_SHIFT 16 //Moves cursor and shifts display without changing DDRAM contents
#define LCD_SETFUNCTION 32 //Sets interface data length (DL), number of display lines (N), and character font (F)
#define LCD_SETCGADDR 64 //Sets CGRAM addressCGRAM data is sent and received after this setting
#define LCD_SETDDADDR 128 //Sets DDRAM address DDRAM data is sent and received after this setting
#define TURE 1
#define FORSE 0
#define TMH 0xf8 //delay timeh 2ms
#define TML 0xCD //delay timel
//------------------------------------------
#define MAX_DISPLAY_CHAR 2
//-----------------------------------------
unsigned char code text[6]="hellow";
static unsigned char data counter,a;
void wcchar(unsigned char d); //write a command char
void wdchar(unsigned char i); //write a data char
char wtbusy(); //wait busy sign
void clrscr(void); //clear screen
void initime0(void); //initial time0
void delay(unsigned char i); //delay
//-------------------------------
unsigned char crc8(unsigned char pData,unsigned char count);
unsigned char pData[]={0x33,0x12,0x34,0x56,0x78,0x33,0x12,0x23,0x45,0x56};
unsigned char data crc;
static char outputbuffer[MAX_DISPLAY_CHAR];
char calc_decascii(char num);
//-------------------------------
void ISR_Timer0(void) interrupt 1
{
TL0=TML;
TH0=TMH;
counter--;
}
void ISR_Int0(void) interrupt 0
{
wdchar(text[a++]); //display "hellow"
if (a>=6)
{a=0;wdchar(' ');}
}
//main program display "hellow"
main(void)
{
unsigned char data k;
initime0();
wcchar(0x38); //initial lcd
wcchar(LCD_SETVISIBLE+6); //set lcd visible
clrscr(); //clear lcd
while(1)
{
crc8(&pData,10);
calc_decascii(crc);
wdchar (outputbuffer[1]);
wdchar (outputbuffer[2]);
wdchar (' ');
for(k=0;k<=6;k++)
{
// wdchar(text[k]); //display "hellow"
P1_2=0;
delay(55); //delay
P1_2=1;
delay(55); //delay
}
}
}
//sub function || display a char
void wdchar(unsigned char i) //write a char
{
unsigned char xdata j;
P1_0=1;
P1_1=0;
j=0x8000;
j=i;
while (wtbusy())
{}
}
void wcchar(unsigned char d) //write a command char
{
unsigned char xdata j;
P1_0=0;
P1_1=0;
j=0x8000;
j=d;
while (wtbusy())
{}
}
char wtbusy() //wait busy sign
{
unsigned char xdata j;
P1_0=0;
P1_1=1;
j=0x8000;
if(j&0x80)
{
return TURE;
}
else
{
return FORSE;
}
}
//clear screen
void clrscr()
{
wcchar(LCD_CLS);
}
//initial time0
void initime0()
{
TL0=TML;
TH0=TMH;
TR0=TURE;
IE=0x93; //Enable T0 and Serial Port
}
//sub function time delay
void delay(unsigned char i)
{
counter=i;
while (counter)
{}
}
unsigned char crc8(unsigned char pData,unsigned char count)
{
// unsigned char crc;
crc = 0;
while (count-- > 0)
{
crc ^= pData++;
}
return crc;
}
char calc_decascii(char num)
// A rather messy function to convert a floating
// point number into an ASCII string
{ long data temp = num;
char data arrayptr = &outputbuffer[MAX_DISPLAY_CHAR];
long data divisor = 10;
long data result;
char data remainder,asciival;
int data i;
// If the result of the calculation is zero
// insert a zero in the buffer and finish
if (!temp)
{ arrayptr = 48;
goto done;
}
// Handle Negative Numbers
if (temp < 0)
{ outputbuffer[0] = '-';
temp -= 2temp;
}
for (i=0 ; i < sizeof(outputbuffer) ; i++)
{ remainder = temp % divisor;
result = temp / divisor;
// If we run off the end of the number insert a space into
// the buffer
if ((!remainder) && (!result))
{ arrayptr = ' ';}
// We're in business - store the digit offsetting
// by 48 decimal to account for the ascii value
else
{ asciival = remainder + 48;
arrayptr = asciival;
}
temp /= 10;
// Save a place for a negative sign
if (arrayptr != &outputbuffer[1]) arrayptr--;
}
done: return outputbuffer;
}
1602液晶的程序我有,要做数字锁的话其实用到液晶也不多。
因为你显示密码是时候不应该都是现实吗?
你只需把键盘写入的数据存在一个数组中,然后跟密码数组对比就好了。
还有就是值得注意的是数据类型问题。
输入的键值看你处理的方式而定,密码存放的格式,还有输出显示的是ascll码。注意转换。
下面附带一段51的1602LCD的C程序,自己仔细琢磨。
#include<reg52h>
#define uchar unsigned char
#define uint unsigned int
uchar table[16]="abcdefghijklmnyz";
uchar table1[16]="0123456789abcdef";
sbit lcden=P2^0;
sbit lcdrs=P2^1;
sbit dula=P2^6;
sbit wela=P2^7;
uchar num;
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void write_com(uchar com)
{ wela=0;
lcdrs=0;
P0=com;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void write_data(uchar date)
{ wela=0;
lcdrs=1;
P0=date;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void init()
{
lcden=0;
write_com(0x38);
write_com(0x0e);
write_com(0x06);
write_com(0x01);
write_com(0x80);
}
void main()
{
init();
for(num=0;num<16;num++)
{
write_data(table[num]);
delay(20);
}
write_com(1);
write_com(0x80+0x40);
for(num=0;num<16;num++)
{
write_data(table1[num]);
delay(20);
}
while(1);
}
这是吴鉴鹰单片机开发板配套的例程。
/-----------------------------------------------
名称:IIC协议 PCF8591 AD/DA转换
内容:使用4路AD中的4路检测外部模拟量输入 使用液晶显示
------------------------------------------------/
#include <reg52h>
#include "i2ch"
#include "delayh"
#include "1602h"
#include <stdioh>
#define AddWr 0x90 //写数据地址
#define AddRd 0x91 //读数据地址
extern bit ack;
unsigned char ReadADC(unsigned char Chl);
bit WriteDAC(unsigned char dat);
/------------------------------------------------
主程序
------------------------------------------------/
main()
{
unsigned char num=0,i;
unsigned char temp[7];//定义显示区域临时存储数组
float Voltage; //定义浮点变量
LCD_Init(); //初始化液晶
DelayMs(20); //延时有助于稳定
LCD_Clear(); //清屏
while (1) //主循环
{
for(i=0;i<5;i++) //连续读5次,取最后一次,以便读取稳定值
num=ReadADC(0); //读取第1路电压值,范围是0-255
Voltage=(float)num5/256; //根据参考电源VREF算出时间电压,float是强制转换符号,用于将结果转换成浮点型
sprintf(temp,"V0 %32f ",Voltage);//格式输出电压值,%32f 表示浮点输出,共3位数,小数点后2位
LCD_Write_String(0,0,temp);
for(i=0;i<5;i++)
num=ReadADC(1);
Voltage=(float)num5/256;
sprintf(temp,"V1 %32f ",Voltage);
LCD_Write_String(8,0,temp);
for(i=0;i<5;i++)
num=ReadADC(2);
Voltage=(float)num5/256;
sprintf(temp,"V2 %32f ",Voltage);
LCD_Write_String(0,1,temp);
for(i=0;i<5;i++)
num=ReadADC(3);
Voltage=(float)num5/256;
sprintf(temp,"V3 %32f ",Voltage);
LCD_Write_String(8,1,temp);
//主循环中添加其他需要一直工作的程序
DelayMs(200);
}
}
/------------------------------------------------
读AD转值程序
输入参数 Chl 表示需要转换的通道,范围从0-3
返回值范围0-255
*** 作分四步:
(1)、发送地址字节,选择该器件。
(2)、发送控制字节,选择相应通道。
(3)、重新发送地址字节,选择该器件的读写。
(4)、接收目标通道的数据。
------------------------------------------------/
unsigned char ReadADC(unsigned char Chl)
{
unsigned char Val;
Start_I2c(); //启动总线
SendByte(AddWr); //发送器件地址
if(ack==0)return(0);
SendByte(0x40|Chl); //发送器件子地址
if(ack==0)return(0);
Start_I2c();
SendByte(AddWr+1); //1001 0001 是读命令
if(ack==0)return(0);
Val=RcvByte();
NoAck_I2c(); //发送非应位
Stop_I2c(); //结束总线
return(Val);
}
首先要确定原因出在哪里,是输入的模拟电压为0?还是AD转换电路不对,转换结果为0,如果转换结果不为0,有数据,就是1602的显示问题。这要具体找出原因来,才好解决吗。
是实物开发板?还是仿真?先不用LCD1602显示,用数码管显示一下A/D转换的结果,看倒底有没有转换数据。
以上就是关于单片机AD采集的C程序全部的内容,包括:单片机AD采集的C程序、跪求,经过MAX197A/D转换、单片机AT89C51处理、1602编程显示, 显示电流、电压 功率、功率因数编程。、关于单片机液晶1602的程序片段问题等相关内容解答,如果想了解更多相关内容,可以关注我们,你们的支持是我们更新的动力!
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