📄 bb.c
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#include <REG931.H>
#include <INTRINS.H>
typedef unsigned char uchar;
typedef unsigned int uint;
#define ClkDown OCC = 0 //P1.7
#define ClkUp OCC = 1
#define DataLow KB0 = 0 //P0.0
#define DataHigh KB0 = 1
#define LEDown OCD = 0 //P2.1
#define LEUp OCD = 1
sbit LED1 = P2^2;
sbit LED2 = P2^3;
sbit KB = P1^6;
sbit adcs = P2^4; //out
sbit dout = P2^3; //in
sbit adclk = P1^4; //out
// 间接访问方式地址定义
// 控制引脚定义
sbit RS =P1^7;
sbit RW =P2^1;
sbit Elcm=P2^0;
////////////////////////////////////////////////////////////////////////////
#define DataPort P0// 数据端口
//instruction
#define Busy 0x80
#define Work_M 0x38//n=1,f=0
#define Cls 0x01
#define Input_M 0x06//i/d=1 ac++ s=0 screen move=off
#define Screen_Off 0x08
#define Disp_M 0x0c//d=1 disp=on c=0 cursor=off
#define Ddram_Al1 0x80;
#define Ddram_Al2 0xc0;//0x80+0x40
#define Wait1us _nop_();
#define Wait2us {_nop_();_nop_();}
#define Wait4us {Wait2us;Wait2us;}
#define Wait8us {Wait4us;Wait4us;}
#define Wait10us {Wait8us;Wait2us;}
/* 设为全局变量 */
unsigned char com,dat;
///////////////////////////////////////////////
uchar dispc[2][16]=
{
' ',' ','O','U','T','P','U','T',' ','P','O','W','E','R',' ',' ',
' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','d','B','m',' ',' ',' '
};
uchar low[2][16]=
{
' ',' ','O','U','T','P','U','T',' ','P','O','W','E','R',' ',' ',
' ',' ',' ',' ',' ',' ',' ',' ',' ',' ','d','B','m',' ',' ',' '
};
uchar pllfreq[6]={2,0,8,0,0,0};
uchar pllstate=1;
/////////////////////////////////////////
code unsigned char ctab[16]={'0','1','2','3','4','5','6','7','8','9','a','b','c','<','o','w'};
/////////////////////////////////////////
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
uchar rflag=0; //定义读标志
uchar sflag=0; //定义发送标志
///////////////////
#define SCOUNT 10
#define RCOUNT 10 //note : cause the invalid ip --> 0000
//idata <256 data <128 bdata bit pdata movx @ri xdata movx @dptr
unsigned char data countsms;
unsigned char data rpoint;//point the next address
unsigned char data spoint;
//**********************
unsigned char idata ssbuf[SCOUNT+1];
//**********************
unsigned char data rbuf[RCOUNT+1];
uchar rtemp;
//======================================================================
//串口接收中断
void UART_ISR(void) interrupt 4 using 3//当接收完一个字节RI置1进入Recieve中断
{
rtemp=SBUF; //保存所读取的数据
RI=0; //RI清0以等待下次发送 // set flag for polling in main loop
//rflag--1 已接收到AA，2--命令字节已接收到
if (rflag==1)
{
rbuf[rpoint]=rtemp;
if (rpoint<RCOUNT)
{
rpoint++;
}
}
if (rtemp==0xaa)
{
rpoint=0;
rflag=1;
}
}
//=======================================================================
//串口发送
void sendm(unsigned char sl)
{
EA=0;//dellete????????????????????????????duplex
for(spoint=0;spoint<sl;spoint++) // send string
{
// clear transmit interrupt flag
SBUF=ssbuf[spoint]; //start sending one byte
while (!TI);
TI=0;
// wait until sent
}
EA=1;
}
//=======================================================================
//串口初始化
void UART_init(void)
{
SCON =0x50; //SCON: serail mode 1, 8-bit UART, enable ucvr
SSTAT=0x60; // separate Rx / Tx interrupts
BRGR0=0xF0; // setup BRG for 9600 baud @ 7.373MHz internal RC oscillator
BRGR1=0x02;
BRGCON = 0x03; // enable BRG
//header of sending string
rpoint=0;
spoint=0;
rbuf[RCOUNT]=0;
ssbuf[SCOUNT]=0;
ssbuf[0]=0xaa;
rflag=0;
ESR=1; //ESR=Enable Serial Recieve
EST=1; //EST=Enable Serial Transmit
// EA=1; //使能中断
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
void initio(void)
{
P0M1 = 0x00;
P0M2 = 0x00;//P0
P1M1 = 0x2c;
P1M2 = 0x0c; //P1.2 P1.3 0C OUTPUT
P2M1 = 0x00;
P2M2 = 0x00;
DataLow;
ClkDown;
LEDown;
KB=1;
LED1=1;
LED2=1;
}
/***********************************/
/* 间接访问方式的驱动函数 */
/***********************************/
/* 直接驱动函数由4个子程序组成：
1.读BF和AC值函数WaitForEnable
2.写指令代码函数LcdWriteCommand
3.写显示数据函数LcdWriteData
4.读显示数据函数LcdReadData
*/
/*---------读BF和AC值函数---------*/
/*
=======================================================
正常读写操作之前必须检测LCD控制器状态: CS=1 RS=0 RW=1
DB7: 0 LCD控制器空闲; 1 LCD控制器忙
========================================================
*/
void WaitForEnable( void )
{
DataPort = 0xff;
RS =0;RW = 1;
Elcm = 1;
/* 判BF=0? */
_nop_();
while( DataPort & Busy );
Elcm = 0;
//ACC=P1; while(ACC_7==1); com=cradd;
}
/*
=======================================================
写控制字符子程序: E=1 RS=0 RW=0
=======================================================
*/
/*-----------写指令函数-----------*/
void LcdWriteCommand( void )
{
WaitForEnable(); // 检测忙信号?
RS = 0;RW = 0;
DataPort = com;
// 送控制字子程序
_nop_();
Elcm = 1;
_nop_();
_nop_();
Elcm = 0; // 操作允许脉冲信号
}
/*
=======================================================
当前位置写字符子程序: E =1 RS=1 RW=0
=======================================================
*/
/*-----------写数据函数-----------*/
//void LcdWriteData( char dataW ) {
void LcdWriteData( void )
{
WaitForEnable();
// 检测忙信号
RS = 1;RW = 0;
DataPort = dat;
_nop_();
Elcm = 1;
_nop_();
_nop_();
Elcm = 0; // 操作允许脉冲信号
}
/*
=======================================================
initialization of LCD
=======================================================
*/
void initLCD(void)
{
unsigned char i,j;
for(j=0;j<3;j++)
{
RS=0;
RW=0;
DataPort=Work_M;
Elcm=1;
_nop_();
Elcm=0;
for(i=0;i<180;i++);
Elcm=1;
_nop_();
Elcm=0;
}
com=Work_M;
LcdWriteCommand();
com=Screen_Off;
LcdWriteCommand();
com=Cls;
LcdWriteCommand();
com=Input_M;
LcdWriteCommand();
com=Disp_M;
LcdWriteCommand();
}
/*
=======================================================
disp the string
=======================================================
*/
void Dispall(void)
{
uchar i;
com = Ddram_Al1;
LcdWriteCommand();
for (i=0;i<16;i++)
{
dat=dispc[0][i];
LcdWriteData(); // 写字符
}
com = Ddram_Al2;
LcdWriteCommand();
for (i=0;i<16;i++)
{
dat=dispc[1][i];
LcdWriteData();
}
}
//////
void Dispall1(void)
{
uchar i;
com = Ddram_Al1;
LcdWriteCommand();
for (i=0;i<16;i++)
{
dat=low[0][i];
LcdWriteData(); // 写字符
}
com = Ddram_Al2;
LcdWriteCommand();
for (i=0;i<16;i++)
{
dat=low[1][i];
LcdWriteData();
}
}
//==============================================================================================
/****************************************************************
;说明CPU配置WDTE=1WDSE=0
;***************************************************************/
void init_wdt()
{
ACC = WDCON; //读取WDT控制寄存器
ACC = ACC|0xc5; //置位ACC.2准备启动WDT PRE2PRE1PRE0=110_D765 WDCLK_D0当该位为1时选择看门狗振荡器作为时钟源
WDL = 0xff; //设置8位倒计时器初值 c5/1.31s e5/2.62s
WDCON = ACC; //启动WDT
WFEED1 = 0xA5; //清零第一部分
WFEED2 = 0x5A; //清零第二部分
}
/*****************************
;喂狗子程序
;注意程序中开启中断
*****************************/
void clrwdt()
{
EA = 0; //关闭中断
WFEED1 = 0xA5; //执行清零第一部分
WFEED2 = 0x5A; //执行清零第二部分
EA = 1; //开中断
}
//************************************************************************************
void DelayNS()
{ uchar i,j;
{ for(i=0; i<200; i++)
for(j=0; j<250; j++);
}
}
//ad
unsigned char ADCSelChannel(void)
{
unsigned char ConvertValue = 0;
unsigned char i;
unsigned char tmp=0;
adcs = 1;
adclk = 0;
Wait4us;
adcs = 0; //芯片起始
Wait4us; //等待延时
for (i = 0; i < 8; i ++) //输入采样转换时钟
{
adclk = 1;
tmp=tmp<<1;
if (dout)
{
tmp++; }
adclk = 0;
}
adcs=1;
ConvertValue=tmp;
for(i=0;i<3;i++)
_nop_();
return (ConvertValue); //返回转换结果
}
void main()
{
uchar A;
uchar B;
uchar C;
uchar D;
uint c,i;
uchar cc;
unsigned char ss[8];
uchar addata=0;
uchar temp;
//_______________________________________________________________________
initio();
initLCD();
//_______________________________________________________________________
Dispall();
/////////////////////////////////////////////////////////
UART_init();
/////////////////////////////////////////////////////////////////////////
c=0;
cc=0;
init_wdt(); //调用看门狗初始化子程序
EA=1; //使能中断
while(1)
{
clrwdt();
addata=ADCSelChannel();
A = addata/1000;
B = addata%1000/100;
C = addata%1000%100/10;
D = addata%1000%100%10;
c=A*1000+B*100+C*10+D;
for (i=0;i<16;i++)
{
dispc[0][i]=low[0][i]; }
for (i=0;i<16;i++)
{
dispc[1][i]=low[1][i]; }
if(c<4){
dispc[1][2] =ctab[13];
dispc[1][3] =ctab[13];
dispc[1][4] =ctab[1];
dispc[1][5] =ctab[5];
}
if(c>=4&&c<5){ dispc[1][4] =ctab[1];
dispc[1][5] =ctab[5]; }
if(c>=5&&c<6){ dispc[1][4] =ctab[1];
dispc[1][5] =ctab[6]; }
if(c>=6&&c<8){ dispc[1][4] =ctab[1];
dispc[1][5] =ctab[7]; }
if(c>=8&&c<10){ dispc[1][4] =ctab[1];
dispc[1][5] =ctab[8]; }
if(c>=10&&c<12){ dispc[1][4] =ctab[1];
dispc[1][5] =ctab[9]; }
if(c>=12&&c<14){ dispc[1][4] =ctab[2];
dispc[1][5] =ctab[0]; }
if(c>=14&&c<16){ dispc[1][4] =ctab[2];
dispc[1][5] =ctab[1]; }
if(c>=16&&c<18){ dispc[1][4] =ctab[2];
dispc[1][5] =ctab[2]; }
if(c>=18&&c<20){ dispc[1][4] =ctab[2];
dispc[1][5] =ctab[3]; }
if(c>=20&&c<23){ dispc[1][4] =ctab[2];
dispc[1][5] =ctab[4]; }
if(c>=23&&c<26){ dispc[1][4] =ctab[2];
dispc[1][5] =ctab[5]; }
if(c>=26&&c<30){ dispc[1][4] =ctab[2];
dispc[1][5] =ctab[6]; }
if(c>=30&&c<34){ dispc[1][4] =ctab[2];
dispc[1][5] =ctab[7]; }
if(c>=34&&c<38){ dispc[1][4] =ctab[2];
dispc[1][5] =ctab[8]; }
if(c>=38&&c<43){ dispc[1][4] =ctab[2];
dispc[1][5] =ctab[9]; }
if(c>=43&&c<49){ dispc[1][4] =ctab[3];
dispc[1][5] =ctab[0]; }
if(c>=49&&c<56){ dispc[1][4] =ctab[3];
dispc[1][5] =ctab[1]; }
if(c>=56&&c<64){ dispc[1][4] =ctab[3];
dispc[1][5] =ctab[2]; }
if(c>=64&&c<73){ dispc[1][4] =ctab[3];
dispc[1][5] =ctab[3]; }
if(c>=73&&c<82){ dispc[1][4] =ctab[3];
dispc[1][5] =ctab[4]; }
if(c>=82&&c<92){ dispc[1][4] =ctab[3];
dispc[1][5] =ctab[5]; }
if(c>=92&&c<103){ dispc[1][4] =ctab[3];
dispc[1][5] =ctab[6]; }
if(c>=103&&c<114){ dispc[1][4] =ctab[3];
dispc[1][5] =ctab[7]; }
if(c>=114&&c<125){ dispc[1][4] =ctab[3];
dispc[1][5] =ctab[8]; }
if(c>=125&&c<137){ dispc[1][4] =ctab[3];
dispc[1][5] =ctab[9]; }
if(c>=137&&c<149){ dispc[1][4] =ctab[4];
dispc[1][5] =ctab[0]; }
if(c>=149) {
//ss[3]=(addata>>=4)-(ss[0]<<1);
// dispc[1][2] =ctab[15];
// dispc[1][3] =ctab[15];
dispc[1][4] =ctab[4];
dispc[1][5] =ctab[1]; }
Dispall();
DelayNS();
}}//
/*if(0){ Dispall1();
}
else { A = addata/1000;
B = addata%1000/100;
C = addata%1000%100/10;
D = addata%1000%100%10;
ss[0]=A;
ss[1]=B;
ss[2]=C;
ss[3]=D;
//ss[3]=(addata>>=4)-(ss[0]<<1);
dispc[1][2] =ctab[ss[1]];
dispc[1][3] =ctab[ss[2]];
dispc[1][4] =ctab[ss[3]];
Dispall();
}
DelayNS();
}
}
/*
cc++;
if(cc>9){
cc=0;
c++; }
if(c>15){
c=0;
}
c++;
cc++;
if (c>65000)
{
c=0;
initLCD();//every 72 cycles
Dispall();
LED1=~LED1;
}
if (cc>250)
{
cc=0;
clrwdt();
}
if(KB==0)
{
LED1 = 0;
LED2 = 0;
while(1);
}
if((rflag==1)&&(rpoint>6))
{
pllstate =rbuf[0];
pllfreq[0] =rbuf[1];
pllfreq[1] =rbuf[2];
pllfreq[2] =rbuf[3];
pllfreq[3] =rbuf[4];
pllfreq[4] =rbuf[5];
pllfreq[5] =rbuf[6];
rflag=0;
rpoint=0;
ssbuf[0]=0xaa;
ssbuf[1]=pllstate;
ssbuf[2]=pllfreq[0];
ssbuf[3]=pllfreq[1];
ssbuf[4]=pllfreq[2];
ssbuf[5]=pllfreq[3];
ssbuf[6]=pllfreq[4];
ssbuf[7]=pllfreq[5];
ssbuf[8]='O';
sendm(9);
LED2=~LED2;
//||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
if (pllstate==1)
{
dispc[1][7]=' ';dispc[1][8]=' ';
}
else
{
dispc[1][7]='U';dispc[1][8]='n';
}
dispc[0][6] =ctab[pllfreq[0]];
dispc[0][7] =ctab[pllfreq[1]];
dispc[0][8] =ctab[pllfreq[2]];
dispc[0][9] =ctab[pllfreq[3]];
//.
dispc[0][11]=ctab[pllfreq[4]];
dispc[0][12]=ctab[pllfreq[5]];
*/⌨️ 快捷键说明
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