📄 comm_51.src
字号:
; .\DeBug\COMM_51.SRC generated from: COMM_51.C
; COMPILER INVOKED BY:
; C:\Keil\C51\BIN\C51.EXE COMM_51.C LARGE BROWSE DEBUG OBJECTEXTEND PRINT(.\DeBug\COMM_51.lst) SRC(.\DeBug\COMM_51.SRC)
$NOMOD51
NAME COMM_51
P0 DATA 080H
P1 DATA 090H
P2 DATA 0A0H
P3 DATA 0B0H
T0 BIT 0B0H.4
AC BIT 0D0H.6
T1 BIT 0B0H.5
EA BIT 0A8H.7
IE DATA 0A8H
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
PS BIT 0B8H.4
SP DATA 081H
OV BIT 0D0H.2
WR BIT 0B0H.6
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
ACC DATA 0E0H
ET0 BIT 0A8H.1
ET1 BIT 0A8H.3
TF0 BIT 088H.5
TF1 BIT 088H.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
P BIT 0D0H.0
SM0 BIT 098H.7
TL0 DATA 08AH
SM1 BIT 098H.6
TL1 DATA 08BH
SM2 BIT 098H.5
PT0 BIT 0B8H.1
PT1 BIT 0B8H.3
RS0 BIT 0D0H.3
TR0 BIT 088H.4
RS1 BIT 0D0H.4
TR1 BIT 088H.6
PX0 BIT 0B8H.0
PX1 BIT 0B8H.2
DPH DATA 083H
DPL DATA 082H
REN BIT 098H.4
RXD BIT 0B0H.0
TXD BIT 0B0H.1
F0 BIT 0D0H.5
PSW DATA 0D0H
?PR?_?CommISRHandler?COMM_51 SEGMENT CODE
?PR?_?CommInit?COMM_51 SEGMENT CODE
?PR?_?CommPutChar?COMM_51 SEGMENT CODE
?PR?_?CommGetChar?COMM_51 SEGMENT CODE
?C_INITSEG SEGMENT CODE
?XD?COMM_51 SEGMENT XDATA
EXTRN CODE (?C?ADDXBP)
EXTRN DATA (?C_XBP)
EXTRN CODE (?C?CSTPTR)
PUBLIC tbuf
PUBLIC rbuf
PUBLIC t_out
PUBLIC t_in
PUBLIC r_out
PUBLIC r_in
PUBLIC t_disabled
PUBLIC _?CommGetChar
PUBLIC _?CommPutChar
PUBLIC _?CommInit
PUBLIC _?CommISRHandler
RSEG ?XD?COMM_51
t_disabled: DS 1
r_in: DS 1
r_out: DS 1
t_in: DS 1
t_out: DS 1
rbuf: DS 256
tbuf: DS 256
RSEG ?C_INITSEG
DB 041H
DW t_in
DB 000H
DB 041H
DW t_out
DB 000H
DB 041H
DW t_disabled
DB 000H
DB 041H
DW r_in
DB 000H
DB 041H
DW r_out
DB 000H
; /*
; *********************************************************************************************************
; * 基于uC/OS-II高速串口驱动及应用程序接口函数
; * 版权所有
; *
; * 文件名 : COMM_51.C
; * 版本号 ：beat3
; * 作者 : 陈是知 csz-mail@126.com 北京中软 2005.4.21
; *********************************************************************************************************
; */
;
; #include "includes.h"
;
; #define TBUF_SIZE 256 // 这两行不要修改
; #define RBUF_SIZE 256
;
; INT8U tbuf [TBUF_SIZE];
; INT8U rbuf [RBUF_SIZE];
;
; INT8U t_in=0;
; INT8U t_out=0;
; INT8U t_disabled=0;
;
; INT8U r_in=0;
; INT8U r_out=0;
;
; /******************************* 中断处理函数 ***************************
; * 功能：完成数据得的接收合发送
; ************************************************************************/
; void CommISRHandler() reentrant
RSEG ?PR?_?CommISRHandler?COMM_51
_?CommISRHandler:
USING 0
; SOURCE LINE # 30
; {
; if (RI)
; SOURCE LINE # 32
JNB RI,?C0001
; {
; SOURCE LINE # 33
; // 接收
; RI = 0;
; SOURCE LINE # 35
CLR RI
; if ((r_in + 1) != r_out)
; SOURCE LINE # 36
MOV DPTR,#r_in
MOVX A,@DPTR
ADD A,#01H
MOV R7,A
CLR A
RLC A
MOV R6,A
INC DPTR
MOVX A,@DPTR
XRL A,R7
JNZ ?C0014
MOV A,R6
?C0014:
JZ ?C0001
; rbuf [r_in++] = SBUF;
; SOURCE LINE # 37
MOV DPTR,#r_in
MOVX A,@DPTR
MOV R7,A
INC A
MOVX @DPTR,A
MOV A,#LOW (rbuf)
ADD A,R7
MOV DPL,A
CLR A
ADDC A,#HIGH (rbuf)
MOV DPH,A
MOV A,SBUF
MOVX @DPTR,A
; //rbuf [r_in++] = 0x99;
; }
; SOURCE LINE # 39
?C0001:
;
; if (TI)
; SOURCE LINE # 41
JNB TI,?C0006
; { // 发送
; SOURCE LINE # 42
; TI = 0;
; SOURCE LINE # 43
CLR TI
; if (t_in != t_out)
; SOURCE LINE # 44
MOV DPTR,#t_out
MOVX A,@DPTR
MOV R7,A
MOV DPTR,#t_in
MOVX A,@DPTR
XRL A,R7
JZ ?C0004
; SBUF = tbuf [t_out++];
; SOURCE LINE # 45
INC DPTR
MOVX A,@DPTR
INC A
MOVX @DPTR,A
MOV A,#LOW (tbuf)
ADD A,R7
MOV DPL,A
CLR A
ADDC A,#HIGH (tbuf)
MOV DPH,A
MOVX A,@DPTR
MOV SBUF,A
RET
?C0004:
; else
; t_disabled = 1;
; SOURCE LINE # 47
MOV DPTR,#t_disabled
MOV A,#01H
MOVX @DPTR,A
; }
; SOURCE LINE # 48
; }
; SOURCE LINE # 49
?C0006:
RET
; END OF _?CommISRHandler
;
;
; void CommInit() reentrant
RSEG ?PR?_?CommInit?COMM_51
_?CommInit:
; SOURCE LINE # 52
; {
; PS=1;
; SOURCE LINE # 54
SETB PS
; TMOD=TMOD&0x0F;
; SOURCE LINE # 55
ANL TMOD,#0FH
; TMOD=TMOD|0x20;
; SOURCE LINE # 56
ORL TMOD,#020H
; TL1=0xFF,TH1=0xFF; //57600, 22.1184MHz
; SOURCE LINE # 57
MOV TL1,#0FFH
MOV TH1,#0FFH
; SCON=0x50;PCON=0x00;
; SOURCE LINE # 58
MOV SCON,#050H
CLR A
MOV PCON,A
; t_disabled = 1;
; SOURCE LINE # 59
MOV DPTR,#t_disabled
INC A
MOVX @DPTR,A
; TR1=1;
; SOURCE LINE # 60
SETB TR1
; ES=1;
; SOURCE LINE # 61
SETB ES
; }
; SOURCE LINE # 62
RET
; END OF _?CommInit
;
;
; /************************** 串行口字符输出函数 ***************************
; * 功能：从串行口输出一个字符c
; **************************************************************************/
; INT8U CommPutChar (INT8U c) reentrant
RSEG ?PR?_?CommPutChar?COMM_51
_?CommPutChar:
USING 0
; SOURCE LINE # 68
MOV DPTR,#0FFFFH
LCALL ?C?ADDXBP
MOV A,R7
MOVX @DPTR,A
; {
;
; if ((t_in-t_out)==255)
; SOURCE LINE # 71
MOV DPTR,#t_out
MOVX A,@DPTR
MOV R7,A
MOV DPTR,#t_in
MOVX A,@DPTR
CLR C
SUBB A,R7
MOV R7,A
CJNE R7,#0FFH,?C0008
; return (COMM_TX_FULL); // 如果发送缓冲区满则返回 COMM_TX_FULL
; SOURCE LINE # 72
MOV R7,#03H
SJMP ?C0009
?C0008:
;
; OS_ENTER_CRITICAL(); // 关中断
; SOURCE LINE # 74
CLR EA
; tbuf [t_in++] = c; // 将数据加入到发送缓冲区并开中断
; SOURCE LINE # 75
MOV DPH,?C_XBP
MOV DPL,?C_XBP+01H
MOVX A,@DPTR
MOV R7,A
MOV DPTR,#t_in
MOVX A,@DPTR
MOV R6,A
INC A
MOVX @DPTR,A
MOV A,#LOW (tbuf)
ADD A,R6
MOV DPL,A
CLR A
ADDC A,#HIGH (tbuf)
MOV DPH,A
MOV A,R7
MOVX @DPTR,A
; if (t_disabled)
; SOURCE LINE # 76
MOV DPTR,#t_disabled
MOVX A,@DPTR
JZ ?C0010
; {
; SOURCE LINE # 77
; t_disabled = 0;
; SOURCE LINE # 78
CLR A
MOVX @DPTR,A
; TI = 1;
; SOURCE LINE # 79
SETB TI
; }
; SOURCE LINE # 80
?C0010:
; OS_EXIT_CRITICAL();
; SOURCE LINE # 81
SETB EA
; return (COMM_NO_ERR); // 串行口输出正确，返回0
; SOURCE LINE # 82
MOV R7,#00H
; }
; SOURCE LINE # 83
?C0009:
MOV DPTR,#01H
LJMP ?C?ADDXBP
; END OF _?CommPutChar
;
;
; /************************* 串行口字符输入函数 ****************************
; * 功能：从串行口输入一个字符
; **************************************************************************/
; INT8U CommGetChar (INT8U *err) reentrant
RSEG ?PR?_?CommGetChar?COMM_51
_?CommGetChar:
USING 0
; SOURCE LINE # 89
MOV DPTR,#0FFFDH
LCALL ?C?ADDXBP
MOV A,R3
MOVX @DPTR,A
INC DPTR
MOV A,R2
MOVX @DPTR,A
INC DPTR
MOV A,R1
MOVX @DPTR,A
MOV DPTR,#0FFFFH
LCALL ?C?ADDXBP
; {
; INT8U c;
;
; if ((r_in-r_out) == 0)
; SOURCE LINE # 93
MOV DPTR,#r_out
MOVX A,@DPTR
MOV R7,A
MOV DPTR,#r_in
MOVX A,@DPTR
CLR C
SUBB A,R7
JNZ ?C0011
; *err=COMM_RX_EMPTY; // 如果接收缓冲区长度为0(未收到字符)，返回 -1
; SOURCE LINE # 94
MOV DPH,?C_XBP
MOV DPL,?C_XBP+01H
INC DPTR
MOVX A,@DPTR
MOV R3,A
INC DPTR
MOVX A,@DPTR
MOV R2,A
INC DPTR
MOVX A,@DPTR
MOV R1,A
MOV A,#02H
LCALL ?C?CSTPTR
SJMP ?C0013
?C0011:
; else
; {
; SOURCE LINE # 96
; OS_ENTER_CRITICAL();
; SOURCE LINE # 97
CLR EA
; c = rbuf [r_out++];
; SOURCE LINE # 98
MOV DPTR,#r_out
MOVX A,@DPTR
MOV R7,A
INC A
MOVX @DPTR,A
MOV A,#LOW (rbuf)
ADD A,R7
MOV DPL,A
CLR A
ADDC A,#HIGH (rbuf)
MOV DPH,A
MOVX A,@DPTR
MOV DPH,?C_XBP
MOV DPL,?C_XBP+01H
MOVX @DPTR,A
; OS_EXIT_CRITICAL();
; SOURCE LINE # 99
SETB EA
; *err=COMM_NO_ERR;
; SOURCE LINE # 100
INC DPTR
MOVX A,@DPTR
MOV R3,A
INC DPTR
MOVX A,@DPTR
MOV R2,A
INC DPTR
MOVX A,@DPTR
MOV R1,A
CLR A
LCALL ?C?CSTPTR
; return (c); // 串行口输入正确，返回输入的字符
; SOURCE LINE # 101
MOV DPH,?C_XBP
MOV DPL,?C_XBP+01H
MOVX A,@DPTR
MOV R7,A
; }
; SOURCE LINE # 102
; } ; SOURCE LINE # 103
?C0013:
MOV DPTR,#04H
LJMP ?C?ADDXBP
; END OF _?CommGetChar
END
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -