单片机串行通信

45 a机通过串行端口控制b机LED/*名称：a机器传输控制命令字符说明：a微控制器向外部发送控制命令字符“a”、“b”、“c”，或者停止传输，b键根据收到的字符停止LED1闪烁、LED2闪烁、双闪烁或闪烁。*/#include#define uchar unsigned char#define uint unsigned intsbit led 1=P0 0 0；sbit led 2=P0 3；sbit k1=P1 0；/延迟Void DelayMS(uint ms)uchar I；while(ms-)for(I=0)；I120I)；/向串行端口发送字符Void Putc_to_SerialPort(uchar c)SBUF=c；while(TI=0)；TI=0；/主程序Void main()uchar Operation _ No=0；SCON=0x40/串行模式1TMOD=0x20/T1操作模式2PCON=0x00/传输速度不会加倍TH1=0xfdTL1=0xfdTI=0；TR1=1；While(1)按If(K1=0)/K1时，选取工作代码0，1，2，3while(K1=0)；Operation _ No=(Operation _ No 1)% 4；Switch(Operation_No)/根据作业代码发送A/B/C或停止传输Case 0:LED1=LED2=1BreakCase 1: putc _ to _ serial端口(a)；LED1= LED1led 2=1；Breakcase 23360 putc _ to _ serial port(b)；LED2= LED2LED1=1Breakcase : putc _ to _ serial port(C)；LED1= LED1LED2=LED1BreakDelayMS(100)；/*名称：b机器程序接收a机器发送字符并完成相应的动作说明：乙基接收到甲基发送的信号后，根据所述信号控制LED完成不同的闪烁动作。*/#include#define uchar unsigned char#define uint unsigned intsbit led 1=P0 0 0；sbit led 2=P0 3；/延迟Void DelayMS(uint ms)uchar I；while(ms-)for(I=0)；I120I)；/主程序Void main()SCON=0x50/串行模式1，允许接收TMOD=0x20/T1操作模式2PCON=0x00/传输速度不会加倍TH1=0xfd/波特率9600TL1=0xfdRI=0；TR1=1；le D1=le D2=1；While(1)如果If(RI)/接收，指示灯将闪烁RI=0；Switch(SBUF)/根据收到的命令字符完成不同的操作case a 3360 led 1= le D1；led 2=1；Break/LED1闪烁盘柜b : led 2= led 2LED1=1Break/LED2闪烁case c 3360 led 1= le D1；LED2=LED1/双闪烁Else LED1=LED2=1/关闭LEDDelayMS(100)；46单片机之间的双向通信/*名称：a-机器串行程序说明：盔甲向乙机发送控制命令文字，甲机同时接收乙机发送的数字，并在数字管上显示。*/#include#define uchar unsigned char#define uint unsigned intsbit led 1=P1 0；sbit led 2=P1 3；sbit k1=P1 7；uchar Operation _ No=0；/作业代码/数码管代码Uchar code dsy _ code =0xx3f，0x06，0xx5b，0x4f，0x66，0x6d，0x7d，0x07，0x7f，0x6f/延迟Void DelayMS(uint ms)uchar I；while(ms-)for(I=0)；I120I)；/向串行端口发送字符Void Putc_to_SerialPort(uchar c)SBUF=c；while(TI=0)；TI=0；/主程序Void main()le D1=le D2=1；P0=0x00SCON=0x50/串行模式1，允许接收TMOD=0x20/T1操作模式2PCON=0x00/传输速度不会加倍TH1=0xfdTL1=0xfdTI=RI=0；TR1=1；IE=0x90/允许串行端口中断While(1)DelayMS(100)；按If(K1=0)/K1时，选取工作代码0，1，2，3while(K1=0)；Operation _ No=(Operation _ No 1)% 4；Switch(Operation_No)/根据作业代码发送A/B/C或停止传输case 03360 putc _ to _ serial port(X)；le D1=le D2=1；BreakCase 1: putc _ to _ serial端口(a)；LED1= LED1led 2=1；Breakcase 23360 putc _ to _ serial port(b)；LED2= LED2LED1=1Breakcase : putc _ to _ serial port(C)；LED1= LED1LED2=LED1Break/a机器串行接收中断函数Void Serial_INT() interrupt4If(RI)RI=0；if(sbuf=0 sbuf=9)P0=dsy _ codesbuf；Else P0=0x00/*名称：b机器程序接收a机器发送字符并完成相应的动作说明：乙基接收到甲基发送的信号后，根据所述信号控制LED完成不同的闪烁动作。*/#include#define uchar unsigned char#define uint unsigned intsbit led 1=P1 0；sbit led 2=P1 3；sbit k2=P1 7；uchar NumX=-1；/延迟Void DelayMS(uint ms)uchar I；while(ms-)for(I=0)；I120I)；/主程序Void main()le D1=le D2=1；SCON=0x50/串行模式1，允许接收TMOD=0x20/T1操作模式2TH1=0xfd/波特率9600TL1=0xfdPCON=0x00/传输速度不会加倍RI=TI=0；TR1=1；IE=0x90While(1)DelayMS(100)；If(K2=0)while(K2=0)；Numx=numx/生成0到10范围内的数字。其中10表示关闭SBUF=NumXwhile(TI=0)；TI=0；Void Serial_INT() interrupt 4If(RI)/接收时的指示灯行为RI=0；Switch(SBUF)/根据收到的命令字符完成不同的操作case x 3360 led 1=led 2=1；Break/完全关闭case a 3360 led 1=0；led 2=1；Break/LED1很亮case b 3360 led 2=0；LED1=1Break/LED2打开case c 3360 led 1=led 2=0；/全部亮47单芯片主机传输字符串/*名称：单芯片微型计算机向主机发送字符串说明：单片机以一定的间隔向主机发送字符串，发送内容显示在虚拟终端上。*/#include#define uchar unsigned char#define uint unsigned int/延迟Void DelayMS(uint ms)uchar I；while(ms-)for(I=0)；I120I)；/向串行端口发送字符Void Putc_to_SerialPort(uchar c)SBUF=c；while(TI=0)；TI=0；/将字符串发送到串行端口Void puts _ to _ serial端口(uchar * s)While(*s！=0)putc _ to _ serial port(* s)；s；DelayMS(5)；/主程序Void main()uchar c=0；SCON=0x40/串行模式1TMOD=0x20/T1操作模式2TH1=0xfd/波特率9600TL1=0xfdPCON=0x00/传输速度不会加倍TI=0；TR1=1；DelayMS(200)；/向主机发送数据puts _ to _ serial port( receiving from 8051). r n )；Puts _ to _ serial端口(“-r n”)；DelayMS(50)；While(1)putc _ to _ serial port(c A)；DelayMS(100)；putc _ to _ serial port()；DelayMS(100)；If(c=25)/在每个输出后添加破折号Puts _ to _ serial端口(“ r n- r n”)；DelayMS(100)；C=(c 1)&If (c=0)/每次输出10个字符时换行puts _ to _ serial port( r n )；DelayMS(100)；48单片机与PC通信/*名称：单片机与PC通信说明：单芯片微型计算机可以接收PC发送的数字字符，按下单芯片K1键，单芯片微型计算机就可以向PC发送字符串。要在Proteus环境中完成此实验，必须安装Virtual Serial Port Driver和串行调试助手。本例缓冲100个数字字符，缓冲后，新数字从前面开始(环形缓冲区)。*/#include#define uchar unsigned char#define uint unsigned intuchar Receive _ Buffer101；/接收缓冲区uchar Buf _ Index=0；/缓冲区空间索引/数码管编码Uchar code dsy _ code =0x3f，0x06，0xx5b，0x4f，0x66，0x6d，0x7d，0x07，0x7f，0x6f/延迟Void DelayMS(uint ms)uchar I；while(ms-)for(I=0)；I120I)；/主程序Void main()uchar I；P0=0x00receive _ Buffer0=-1；SCON=0x50/串行模式1，允许接收TMOD=0x20/T1操作模式2