chuankouceshi.src

C语言写的8051单片机串口调试程序

; chuankouceshi.SRC generated from: chuankouceshi.c
; COMPILER INVOKED BY:
;        C:\Keil\C51\BIN\C51.EXE chuankouceshi.c DEBUG OBJECTEXTEND

$NOMOD51

NAME	CHUANKOUCESHI

P0	DATA	080H
P1	DATA	090H
P2	DATA	0A0H
P3	DATA	0B0H
T0	BIT	0B0H.4
AC	BIT	0D0H.6
T1	BIT	0B0H.5
T2	BIT	090H.0
EA	BIT	0A8H.7
IE	DATA	0A8H
EXF2	BIT	0C8H.6
RD	BIT	0B0H.7
ES	BIT	0A8H.4
IP	DATA	0B8H
RI	BIT	098H.0
INT0	BIT	0B0H.2
CY	BIT	0D0H.7
TI	BIT	098H.1
INT1	BIT	0B0H.3
RCAP2H	DATA	0CBH
PS	BIT	0B8H.4
SP	DATA	081H
T2EX	BIT	090H.1
OV	BIT	0D0H.2
RCAP2L	DATA	0CAH
C_T2	BIT	0C8H.1
WR	BIT	0B0H.6
RCLK	BIT	0C8H.5
TCLK	BIT	0C8H.4
SBUF	DATA	099H
PCON	DATA	087H
SCON	DATA	098H
TMOD	DATA	089H
TCON	DATA	088H
IE0	BIT	088H.1
IE1	BIT	088H.3
B	DATA	0F0H
CP_RL2	BIT	0C8H.0
ACC	DATA	0E0H
ET0	BIT	0A8H.1
ET1	BIT	0A8H.3
TF0	BIT	088H.5
ET2	BIT	0A8H.5
TF1	BIT	088H.7
TF2	BIT	0C8H.7
RB8	BIT	098H.2
TH0	DATA	08CH
EX0	BIT	0A8H.0
IT0	BIT	088H.0
TH1	DATA	08DH
TB8	BIT	098H.3
EX1	BIT	0A8H.2
IT1	BIT	088H.2
TH2	DATA	0CDH
P	BIT	0D0H.0
SM0	BIT	098H.7
TL0	DATA	08AH
SM1	BIT	098H.6
TL1	DATA	08BH
SM2	BIT	098H.5
TL2	DATA	0CCH
PT0	BIT	0B8H.1
PT1	BIT	0B8H.3
RS0	BIT	0D0H.3
PT2	BIT	0B8H.5
TR0	BIT	088H.4
RS1	BIT	0D0H.4
TR1	BIT	088H.6
TR2	BIT	0C8H.2
PX0	BIT	0B8H.0
PX1	BIT	0B8H.2
DPH	DATA	083H
DPL	DATA	082H
EXEN2	BIT	0C8H.3
REN	BIT	098H.4
T2CON	DATA	0C8H
RXD	BIT	0B0H.0
TXD	BIT	0B0H.1
F0	BIT	0D0H.5
PSW	DATA	0D0H
?PR?usart?CHUANKOUCESHI                  SEGMENT CODE 
?PR?usart_init?CHUANKOUCESHI             SEGMENT CODE 
?PR?main?CHUANKOUCESHI                   SEGMENT CODE 
?C_INITSEG           SEGMENT CODE 
?BI?CHUANKOUCESHI    SEGMENT BIT 
?DT?CHUANKOUCESHI    SEGMENT DATA 
	EXTRN	CODE (?C_STARTUP)
	PUBLIC	i
	PUBLIC	flag_send
	PUBLIC	flag_data
	PUBLIC	main
	PUBLIC	usart_init
	PUBLIC	usart

	RSEG  ?BI?CHUANKOUCESHI
      flag_data:   DBIT   1
      flag_send:   DBIT   1

	RSEG  ?DT?CHUANKOUCESHI
              i:   DS   1

	RSEG  ?C_INITSEG
	DB	0C1H, flag_data + 000H	; bit-init

	DB	0C1H, flag_send + 000H	; bit-init

; #pragma src
; /*******
; 串口测试,如果在串口写入4,则发送数据1;如果串口写入其他,发送数据0
; *******/
; 
; #include<reg52.h>
; #define uchar unsigned char
; uchar i;
; bit flag_data=0;      //一次接收后发送一次的标志,不然主程序里会不停的发送
; bit flag_send=0;      //允许发送
; 
CSEG	AT	00023H
	LJMP	usart

; void usart(void) interrupt 4

	RSEG  ?PR?usart?CHUANKOUCESHI
	USING	0
usart:
	PUSH 	ACC
	PUSH 	PSW
			; SOURCE LINE # 12
; {
;  if(RI)
			; SOURCE LINE # 14
	JNB  	RI,?C0004
;  {
			; SOURCE LINE # 15
;   RI=0;
			; SOURCE LINE # 16
	CLR  	RI
;   i=SBUF;                    //令SBUF=0x04,此步后i没有被SBUF赋值
			; SOURCE LINE # 17
	MOV  	i,SBUF
;   flag_send=1;
			; SOURCE LINE # 18
	SETB 	flag_send
;   if(i==4)flag_data=1;
			; SOURCE LINE # 19
	MOV  	A,i
	CJNE 	A,#04H,?C0002
	SETB 	flag_data
	SJMP 	?C0004
?C0002:
;   else flag_data=0;
			; SOURCE LINE # 20
	CLR  	flag_data
;  }
			; SOURCE LINE # 21
; }
			; SOURCE LINE # 22
?C0004:
	POP  	PSW
	POP  	ACC
	RETI 	
; END OF usart

; 
; void usart_init()          //初始化

	RSEG  ?PR?usart_init?CHUANKOUCESHI
usart_init:
			; SOURCE LINE # 24
; {
			; SOURCE LINE # 25
;  TMOD=0x20;
			; SOURCE LINE # 26
	MOV  	TMOD,#020H
;  TH1=0xfd;
			; SOURCE LINE # 27
	MOV  	TH1,#0FDH
;  TL1=TH1;                  //11.0592Mhz下9600波特率
			; SOURCE LINE # 28
	MOV  	TL1,TH1
;  PCON=0x00;
			; SOURCE LINE # 29
	CLR  	A
	MOV  	PCON,A
;  SCON=0x50; 
			; SOURCE LINE # 30
	MOV  	SCON,#050H
;  TR1=1;
			; SOURCE LINE # 31
	SETB 	TR1
;  ET1=0;
			; SOURCE LINE # 32
	CLR  	ET1
;  ES=1;
			; SOURCE LINE # 33
	SETB 	ES
;  RI=0;
			; SOURCE LINE # 34
	CLR  	RI
;  TI=0;
			; SOURCE LINE # 35
	CLR  	TI
;  EA=1;                    //开中断
			; SOURCE LINE # 36
	SETB 	EA
; }
			; SOURCE LINE # 37
	RET  	
; END OF usart_init

; 
; void main()

	RSEG  ?PR?main?CHUANKOUCESHI
main:
			; SOURCE LINE # 39
; {
			; SOURCE LINE # 40
;  usart_init();
			; SOURCE LINE # 41
	LCALL	usart_init
?C0006:
; 
;  while(1)
			; SOURCE LINE # 43
;  {
			; SOURCE LINE # 44
;   if(flag_send)                 
			; SOURCE LINE # 45
	JNB  	flag_send,?C0006
;   {
			; SOURCE LINE # 46
;    if(flag_data)SBUF=1;      //这里可以发送任何数据,比如测试温度、红外、电压等等数据
			; SOURCE LINE # 47
	JNB  	flag_data,?C0009
	MOV  	SBUF,#01H
	SJMP 	?C0011
?C0009:
;    else SBUF=0;              //这里可以发送任何数据,比如测试温度、红外、电压等等数据,或者不发送
			; SOURCE LINE # 48
	CLR  	A
	MOV  	SBUF,A
?C0011:
;    while(!TI);                //这里原来有";"           
			; SOURCE LINE # 49
	JNB  	TI,?C0011
?C0012:
;    TI=0;
			; SOURCE LINE # 50
	CLR  	TI
;    flag_send=0;                 
			; SOURCE LINE # 51
	CLR  	flag_send
;   }
			; SOURCE LINE # 52
;  }
			; SOURCE LINE # 53
	SJMP 	?C0006
; END OF main

	END