c8051f340最小系统板及串口通信程序

1、PIV-4mitswjiKitsvoam-l5ilvf.mjH迦q”pgAWA怅oMyLKKRtCK1XMLJUKKIUXFXWrWl1侔池;nl.x?.o4gOiIT第 页串口通信c第 #页#defineucharunsignedchar#defineuintxmsignedintincludecS051f340.hiJincludestringhiJincludestdiohiJincludestdarghintUARTlprintf(constchar*fmt,);sbitLED1=P2J;charUartOStr20;ucharUartCnt=0;intTimeOCnt=0;voidP

2、0RT_Init(void)ROR1R21DI1DIMDXBXBXBP0P1P3POSKIPP1SKIPP2SKIPP3SKIP3o1of2oo4o11ocXXXXXXXooooooo;FF3=XFXFXO0:0:0:/使能UARTO/使能交叉开关/使能UART1/配置端L1PO4仃XO）输出方式为推挽输出/初始化LCD及SD1302通讯口输；11方式为推挽输出/SD1302片选输出方式为推挽输出第 #页第 #页voidTimerInit0第 #页第 页TC0N=0X50;TM0D=0 x22;CKC0N=0 x02;TL0=0 x64;TH0=0 x30;TMR2CN=0 x20;TMR2R

3、LL=OxFF;TMR2RLH=OxFF;UARTO.Init(void)SC0N0|=0 x10;TH1=0 x98;TL1=TH1;TRI=1；TI0=1；TRO=1；UARTl.Init(void)SBRLL1=0 x3C;SBRLH1=0 xF6;SC0N1=0 x10;SM0D1=OxOE;SBC0N1=0 x43;voidvoid/启动定时0/1蒙飜储都是动唤位计如定榊/波特率为4800/允许UART1接收第 #页第 #页void0scillator_Init()/Wait5usforinitializationinti=0;FLSCL=0 x90;CLKMUL=0 x80;for

4、(i=0:i20;i+十)；CLKMUL|=OxCO;while(CLKMUL&0 x20)=0)CLKSEL=0 x03;OSCICN=0 x83;第 页voidInterrupts_Init()IPEIE1EIE2EIP2IE=OxlA;=0 x08;=0 x02;=0 x02;=0 x92;串口通信c/允许ADC转换结voidsleep(unsignedintcount)/245M卜延时1msunsignedinti,j:for(i=0;icount;i+十)for(j=0;j19)UartCnt=0;elseUartOStrUartCnt.=0；RIO=0;voidTime0_0ut(

5、void)interrupt1Killol用户手册的中断函数P126)if(+Time0Cnt10000)TimeOCnt=0;/定时器0溢出中断(中断号1仅仅限TC8051F340,参考芯片pdf资料P82和voidmainOucharUartCntOld=99:PCAOMD&二0 x40;/禁止看门狗定时器Timer_Init();PORT.InitO;UARTO.InitO;UARTl.InitO;Oscillator_Init();Interrupts_Init0;/以下代码務VDD监视器设置为复位源防止程序丢失得重耍措施VDM0CN|=0 x80;/使能VDD监视器sleep(l);

6、延时1亳秒等待VDD监视器启动并稳定(VDD监视器启动时间为100uS)RSTSRC=0 x02;/设置VDD监视器为复位源，代码中所有的对rstsrc的写操作均用直接赋值方式完成(如rstsrc=0 x02)Wsleep(10);printfC*n201003-13n);UARTlprintfCn2010-03-13iT);printf(zzMadeByMartaln);UARTlprintf(MadeByMartaln*);printfC*中断UARTOrn);UARTlprintf(中断UART1rrT);while(1)/重复循环显示第 页串口通信cif(UartCnt!=UartCn

7、tOld)if(UartCnt=0)printfUartOStr0);elseprintfUartOStrUartCnt-1);UartCntOld=UartCnt;if(TimeOCnt5000)TimeOCnt=0;LED1=、LED1;UARTlprintfC这是CARTWd,波特率是9600rT,(int)l);printf(这是UART%d,波特率是4800n,(int)2);/*功能：串行接收uartl中断服务函数*/voidUARTl_Interrupt(void)interrupt16while(SCONl&OxOl)接收到数据标志RI1=1EIE2&二OxfD;/禁止UART

8、1中断UartOStrUartCnt=SBUF1;SC0N1=0 x30;/复位RI1、TI1=OelseEIE2=0 x02;UartOStrUartCntZ=0；if(卄UartCnt19)UartCnt=0;/将10进制数数字转换为10进制字符串/允许UART1中断voiddectostr(char*s,unsignedlongdatain)inti;charc;unsignedlongtmp=datain;if(tmp=0)i=l；elsefor(i=0;tmp0;i+)tmp=tmp/10;sie；while(1)c=datain%10;si二c+O;if(datain10)brea

9、k;datain=datain/10;voidUARTlputchar(charc)SBUF1=c;while(!(SC0Nl&0 x02);串口通信cSC0N1&二OxFD;/复位TI1二0/UART1发送函数intUARTlprintf(constchar*fmt,)constchar*s;intd;charbuf116;va_listap;va_start(ap,fmt);while(*fmt)if(*fmt!=时)&(*fmt!=0)UARTlputchar(*fmt+);continue;switch(*(+fmt)cases:s=va_arg(ap,constchar*);for(;*s;s+十)UARTlputchar(*s);b