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/*---------------------------------------------------------------------*/
/* --- STC MCU Limited ------------------------------------------------*/
/* --- STC15F4K60S4 系列定時器1用作串口1的波特率發(fā)生器舉例------------*/
/* 如果要在程序中使用此代碼,請在程序中注明使用了STC的資料及程序 */
/* 如果要在文章中應(yīng)用此代碼,請在文章中注明使用了STC的資料及程序 */
/*---------------------------------------------------------------------*/
//本示例在Keil開發(fā)環(huán)境下請選擇Intel的8058芯片型號進(jìn)行編譯
//若無特別說明,工作頻率一般為11.0592MHz
#include "STC15Fxxxx.H"
//#include "reg51.h"
#include <stdio.h>
typedef unsigned char BYTE;
typedef unsigned int WORD;
//typedef unsigned int u16; //對數(shù)據(jù)類型進(jìn)行聲明定義
//typedef unsigned char u8;
#define FOSC 11059200L //系統(tǒng)頻率
#define BAUD 115200 //串口波特率
#define NONE_PARITY 0 //無校驗
#define ODD_PARITY 1 //奇校驗
#define EVEN_PARITY 2 //偶校驗
#define MARK_PARITY 3 //標(biāo)記校驗
#define SPACE_PARITY 4 //空白校驗
#define PARITYBIT NONE_PARITY //定義校驗位
/* STC15Fxxxx.H中已定義
//sfr P0M1 = 0x93;
//sfr P0M0 = 0x94;
//sfr P1M1 = 0x91;
//sfr P1M0 = 0x92;
//sfr P2M1 = 0x95;
//sfr P2M0 = 0x96;
//sfr P3M1 = 0xb1;
//sfr P3M0 = 0xb2;
//sfr P4M1 = 0xb3;
//sfr P4M0 = 0xb4;
//sfr P5M1 = 0xC9;
//sfr P5M0 = 0xCA;
//sfr P6M1 = 0xCB;
//sfr P6M0 = 0xCC;
//sfr P7M1 = 0xE1;
//sfr P7M0 = 0xE2;
//sfr AUXR = 0x8e; //輔助寄存器
//sfr P_SW1 = 0xA2; //外設(shè)功能切換寄存器1
*/
#define S1_S0 0x40 //P_SW1.6
#define S1_S1 0x80 //P_SW1.7
#define ADC_POWER 0x80 //ADC電源控制位
#define ADC_FLAG 0x10 //ADC完成標(biāo)志
#define ADC_START 0x08 //ADC起始控制位
#define ADC_SPEEDLL 0x00 //540個時鐘
#define ADC_SPEEDL 0x20 //360個時鐘
#define ADC_SPEEDH 0x40 //180個時鐘
#define ADC_SPEEDHH 0x60 //90個時鐘
//sbit P22 = P2^2;
unsigned int ch;a,b;
unsigned int dd=0;
unsigned int cc=0;
unsigned int cc0=0;
unsigned int cc1=0;
unsigned int cc00=0;
unsigned int cc01=0;
unsigned int cc10=0;
unsigned int cc11=0;
unsigned int time0count0 = 0 ;
unsigned int time0count1 = 0 ;
unsigned int time0count = 3000 ;
bit busy;
char receivechar = 0;
int receive_count = 0;
int received = 0;
WORD receivestr[10];
void InitUart();
void InitADC();
void Timer0Init();
void SendData(BYTE dat);
void SendString(char *s);
void serial_put_uint(unsigned int number);
void Delay(WORD n);
//void ShowResult(BYTE ch);
unsigned int GetADCResultint(BYTE ch);
void main()
{
int initreceivestrcount=0;
unsigned int tt0=0,tt1=0;
// unsigned int d1,d2,d3,i;
unsigned int i=0;
if (i == 0 ) //初始化tt0 tt1 P0 -P7 數(shù)據(jù)
{
/*
例如將P1M0=0X60和P1M1=0X00譯成bai二進(jìn)制代碼是
P1M0=0110 0000，duP1M1=0000 0000.
按照I/O口工作模式設(shè)置zhi規(guī)定
都為0時為準(zhǔn)雙向口（dao傳統(tǒng)8051單片機(jī)zhuanI/O口模式）
為0,1時為推挽（shu強(qiáng)上拉輸出），
為1,0時為高阻（僅輸入），
為1,1時為開漏（內(nèi)部上拉斷開，須外加上拉電阻）
你選擇的是P1M0和P1M1所以針對的是P1口的操作，
將兩個二進(jìn)制代碼一位位的比較可知：P1.0~P1.4及P1.7都為0,
故這些I/O口設(shè)置的是標(biāo)準(zhǔn)狀態(tài);P1.5和P1.6為高阻態(tài)
（P1M0上的第六位和第七位都為1，P1M1上的第六位和第七位都是0。1,0時為高阻）
*/
tt0=16640;
tt1=tt0/256;
P0M0 = 0x00;
P0M1 = 0x00;
P1M0 = 0x00;
P1M1 = 0x03;
P2M0 = 0x00;
P2M1 = 0x00;
P3M0 = 0x00;
P3M1 = 0x00;
P4M0 = 0x00;
P4M1 = 0x00;
P5M0 = 0x00;
P5M1 = 0x00;
P6M0 = 0x00;
P6M1 = 0x00;
P7M0 = 0x00;
P7M1 = 0x00;
}
InitUart(); //初始化串口
//printf ("20200102 第一次調(diào)試 a 1 取左字節(jié) a %d A/256=A %d C51\n" , tt0,tt1 ); /* ?? "Hello C51 " */
SendString("20200102 第二次調(diào)試 \r\n");
initreceivestrcount=0;
while (initreceivestrcount<10) //初始化 receivestr
{
receivestr[initreceivestrcount]=0;
initreceivestrcount = initreceivestrcount + 1 ;
}
//printf ("Hello"); //printf 不能使用編譯通過不能仿真運(yùn)行
InitADC(); //初始化ADC
Timer0Init(); //定時器0初始化
/* 除法測試
//printf ("Hello ADC 第y次調(diào)試 a 1 加代碼a %d A/256=A %d C51\n" , tt0,tt1 );
// sprintf(str," receive %d \r\n",receivechar);
// SendString(str);
// sprintf(str," d1 %d a \r\n",tt0);
// SendString(str);
// sprintf(str," d2 %d a \r\n",tt1);
// SendString(str);
// sprintf(str," d3 %d a \r\n",d3);
// SendString(str);
*/
SendString("c STC15W4kS32\r\n Uart Test !\r\n");
while(1)
{
if (received == 1) // 在串口接收預(yù)定義字符后回送 20210103 增加控制定時顯示功能
{
/* 除法測試及sprintf
// SendString("\r\n");
// d1 = receivechar;
// d2 = d1 ;
// d3=d2*256;
// d3=d1-d3;
// sprintf(str," receive %d a\r\n",receivechar);
// SendString(str);
// sprintf(str," d1 %d b \r\n",d1);
// SendString(str);
// sprintf(str," d2 %d c \r\n",d2);
// SendString(str);
// sprintf(str," d3 %d d \r\n",d3);
// SendString(str);
// SendString(receivestr);receivechar
*/
serial_put_uint(receivechar);
SendString(" start ");
//serial_put_uint(11);
for (i=0;i<receive_count;i++)
{
SendData(receivestr[i]);
}
SendString(" COUNT= ");
serial_put_uint(receive_count);
receive_count = 0 ;
if (receivestr[1] == 65 )
{
time0count = ( receivestr[2] - 48 ) * 1000 ;
SendString(" \r\n 串口設(shè)定 time0 ");
serial_put_uint(time0count/1000);
SendString(" 秒定時 ");
}
SendString(" \r\n");
received = 0 ;
}
if (time0count0 != time0count1) // 串口設(shè)定的秒定時
{
SendString(" time0 ");
serial_put_uint(time0count/1000);
SendString(" 秒定時執(zhí)行 ");
serial_put_uint(time0count0);
SendString(" \r\n ");
time0count1 = time0count0;
}
b=b+1;
dd=0;
cc00 = GetADCResultint(dd); //讀取ADC 0 P1.0 數(shù)據(jù)
if (cc01 != cc00) // ADC 0 P1.0 數(shù)據(jù)變化發(fā)送串口
{
SendString(" ADC ");
// serial_put_uint(b);
SendString(" ch ");
serial_put_uint(dd);
SendString(" new ");
serial_put_uint(cc00);
SendString(" old ");
serial_put_uint(cc01);
SendString(" end \r\n");
//printf (" ADC %d ch %d :0x %x 0d %d \n", b,dd,cc00,cc01 );
cc01 = cc00;
}
dd=1;
cc10 = GetADCResultint(dd); //讀取ADC 1 P1.1 數(shù)據(jù)
if (cc11 != cc10) // ADC 1 P1.1 數(shù)據(jù)變化發(fā)送串口
{
SendString(" ADC ");
// serial_put_uint(b);
SendString(" ch ");
serial_put_uint(dd);
SendString(" new ");
serial_put_uint(cc10);
SendString(" old ");
serial_put_uint(cc11);
SendString(" end \r\n");
//printf (" ADC %d ch %d :0x %x 0d00 %d \n", b,dd,cc10,cc11 );
cc11=cc10;
}
dd=0;
if (b>10000) b=0;
}
}
/*******************************************************************************
* 函數(shù) 名 : Timer0Init
* 函數(shù)功能 : 定時器0初始化
* 輸入 : 無
* 輸出 : 無
*******************************************************************************/
void Timer0Init()
{
TMOD|=0X01;//選擇為定時器0模式，工作方式1，僅用TR0打開啟動。
TH0=0XFC; //給定時器賦初值，定時1ms
TL0=0X18;
ET0=1;//打開定時器0中斷允許
EA=1;//打開總中斷
TR0=1;//打開定時器
}
/*----------------------------
初始化串口
----------------------------*/
void InitUart()
{
// ACC = P_SW1;
// ACC &= ~(S1_S0 | S1_S1); //S1_S0=0 S1_S1=0
// P_SW1 = ACC; //(P3.0/RxD, P3.1/TxD)
// ACC = P_SW1;
// ACC &= ~(S1_S0 | S1_S1); //S1_S0=1 S1_S1=0
// ACC |= S1_S0; //(P3.6/RxD_2, P3.7/TxD_2)
// P_SW1 = ACC;
//
// ACC = P_SW1;
// ACC &= ~(S1_S0 | S1_S1); //S1_S0=0 S1_S1=1
// ACC |= S1_S1; //(P1.6/RxD_3, P1.7/TxD_3)
// P_SW1 = ACC;
#if (PARITYBIT == NONE_PARITY)
SCON = 0x50; //8位可變波特率
#elif (PARITYBIT == ODD_PARITY) || (PARITYBIT == EVEN_PARITY) || (PARITYBIT == MARK_PARITY)
SCON = 0xda; //9位可變波特率,校驗位初始為1
#elif (PARITYBIT == SPACE_PARITY)
SCON = 0xd2; //9位可變波特率,校驗位初始為0
#endif
AUXR = 0x40; //定時器1為1T模式
TMOD = 0x00; //定時器1為模式0(16位自動重載)
TL1 = (65536 - (FOSC/4/BAUD)); //設(shè)置波特率重裝值
TH1 = (65536 - (FOSC/4/BAUD))>>8;
TR1 = 1; //定時器1開始啟動
ES = 1; //使能串口中斷
EA = 1;
// SCON = 0x5a; //設(shè)置串口為8位可變波特率
//#if URMD == 0
// T2L = (65536 - (FOSC/4/BAUD));
// T2H = (65536 - (FOSC/4/BAUD)) >> 8;
// AUXR = 0x14; //T2為1T模式, 并啟動定時器2
// AUXR |= 0x01; //選擇定時器2為串口1的波特率發(fā)生器
//#elif URMD == 1
// AUXR = 0x40; //定時器1為1T模式
// TMOD = 0x00; //定時器1為模式0(16位自動重載)
// TL1 = (65536 - (FOSC/4/BAUD));
// TH1 = (65536 - (FOSC/4/BAUD)) >> 8;
// TR1 = 1; //定時器1開始啟動
//#else
// TMOD = 0x20; //設(shè)置定時器1為8位自動重裝載模式
// AUXR = 0x40; //定時器1為1T模式
// TH1 = TL1 = (256 - (FOSC/32/BAUD));
// TR1 = 1;
//#endif
}
/*----------------------------
初始化ADC
----------------------------*/
void InitADC()
{
P1M0 =1;
P1M1 =0;
P1 = 0Xff;
P1ASF = 0xff; //設(shè)置P1口為AD口
ADC_RES = 0; //清除結(jié)果寄存器
ADC_RESL = 0; //清除結(jié)果寄存器
ADC_CONTR = ADC_POWER | ADC_SPEEDLL;
Delay(2); //ADC上電并延時
}
/*----------------------------
讀取ADC結(jié)果 20210101 注釋GetADCResult 用GetADCResultint代替
----------------------------*/
unsigned int GetADCResultint(BYTE ch)
{
unsigned int ret=0;
ADC_CONTR = ADC_POWER | ADC_SPEEDLL | ch | ADC_START;
_nop_(); //等待4個NOP
_nop_();
_nop_();
_nop_();
while (!(ADC_CONTR & ADC_FLAG));//等待ADC轉(zhuǎn)換完成
ADC_CONTR &= ~ADC_FLAG; //Close ADC
ret = ADC_RES*4 + ADC_RESL;
return ret; //返回ADC結(jié)果
}
/*----------------------------
UART 中斷服務(wù)程序
-----------------------------*/
void Uart() interrupt 4
{
if (RI)
{
RI = 0; //清除RI位
receivechar = SBUF; //P0顯示串口數(shù)據(jù)
if ( receivechar == 60 ) receive_count = 0 ;
if ((receive_count<9) && ( receivechar != 62 )&&(received == 0 ))
{
receivestr[receive_count] = receivechar;
receivestr[receive_count+1] = 0;
receive_count = receive_count + 1 ;
}
else
{
received = 1;
// while (initreceivestrcount<10)
// {
// receivestr[initreceivestrcount]=0;
// initreceivestrcount = initreceivestrcount + 1 ;
// }
}
// SendData(receivechar);
// P22 = RB8; //P2.2顯示校驗位
}
if (TI)
{
TI = 0; //清除TI位
busy = 0; //清忙標(biāo)志
}
}
void Timer0() interrupt 1
{
static u16 itime0;
TH0=0XFC; //給定時器賦初值，定時1ms
TL0=0X18;
itime0++;
if(itime0==time0count)
{
itime0=0;
time0count0 = time0count0 + 1;
if ( time0count0 > 20 ) time0count0 = 0;
}
}
/*----------------------------
發(fā)送串口數(shù)據(jù)
----------------------------*/
void SendData(BYTE dat)
{
while (busy); //等待前面的數(shù)據(jù)發(fā)送完成
ACC = dat; //獲取校驗位P (PSW.0)
// if (P) //根據(jù)P來設(shè)置校驗位
// {
//#if (PARITYBIT == ODD_PARITY)
// TB8 = 0; //設(shè)置校驗位為0
//#elif (PARITYBIT == EVEN_PARITY)
// TB8 = 1; //設(shè)置校驗位為1
//#endif
// }
// else
// {
//#if (PARITYBIT == ODD_PARITY)
// TB8 = 1; //設(shè)置校驗位為1
//#elif (PARITYBIT == EVEN_PARITY)
// TB8 = 0; //設(shè)置校驗位為0
//#endif
// }
busy = 1;
SBUF = ACC; //寫數(shù)據(jù)到UART數(shù)據(jù)寄存器
}
/*----------------------------
發(fā)送字符串
----------------------------*/
void SendString(char *s)
{
// EA = 0 ;
// ES = 0 ;
while (*s) //檢測字符串結(jié)束標(biāo)志
{
SendData(*s++); //發(fā)送當(dāng)前字符
}
// EA = 1 ;
// ES = 1 ;
}
void serial_put_uint(unsigned int number)
{
unsigned int i;
unsigned int nTmp;
// *s++ =num/10 +'0';
//*s++=num%10 +'0';
//*s =0;
//感覺這寫法怪怪的嗎？干嘛不for(i=1;i<5;i++) 因為這樣不需要使用庫函數(shù)pow()
for(i=10000;i>=1;i=i/10)
{
nTmp = number/i;
if(nTmp >=1 ) SendData((unsigned char)(nTmp%10 + 0x30));
}
}
/*----------------------------
軟件延時
----------------------------*/
void Delay(WORD n)
{
WORD x;
while (n--)
{
x = 5000;
while (x--);
}
}

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