📄 i2c_m.src
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; .\i2c_m.SRC generated from: i2c_m.c
; COMPILER INVOKED BY:
; C:\Keil\C51\BIN\C51.EXE i2c_m.c BROWSE DEBUG OBJECTEXTEND SRC(.\i2c_m.SRC)
$NOMOD51
NAME I2C_M
P0 DATA 080H
P1 DATA 090H
AA BIT 0D8H.2
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
ENS1 BIT 0D8H.6
ES BIT 0A8H.4
IP DATA 0B8H
RI BIT 098H.0
SI BIT 0D8H.3
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
A DATA 0E0H
B DATA 0F0H
CP_RL2 BIT 0C8H.0
CR0 BIT 0D8H.0
CR1 BIT 0D8H.1
ACC DATA 0E0H
ET0 BIT 0A8H.1
ES1 BIT 0A8H.5
ET1 BIT 0A8H.3
TF0 BIT 088H.5
ET2 BIT 0A8H.6
TF1 BIT 088H.7
CR7 BIT 0D8H.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
S1ADR DATA 0DBH
DPH DATA 083H
S1DAT DATA 0DAH
DPL DATA 082H
EXEN2 BIT 0C8H.3
REN BIT 098H.4
S1CON DATA 0D8H
T2CON DATA 0C8H
STA BIT 0D8H.5
S1STA DATA 0D9H
RXD BIT 0B0H.0
TXD BIT 0B0H.1
F0 BIT 0D0H.5
STO BIT 0D8H.4
PSW DATA 0D0H
?PR?i2c_isr?I2C_M SEGMENT CODE
?C_INITSEG SEGMENT CODE
?CO?I2C_M SEGMENT CODE
?DT?I2C_M SEGMENT DATA
?ID?I2C_M SEGMENT IDATA
EXTRN CODE (_transreg)
EXTRN CODE (?C?CCASE)
PUBLIC Slave_Adr
PUBLIC FReceive_Done
PUBLIC SDATA
PUBLIC num
PUBLIC trans_done
PUBLIC DATA?
PUBLIC i2c_isr
RSEG ?DT?I2C_M
trans_done: DS 1
num: DS 1
RSEG ?ID?I2C_M
SDATA: DS 10
FReceive_Done: DS 1
Slave_Adr: DS 1
RSEG ?CO?I2C_M
DATA?:
DB 055H
DB 0AAH
DB 0A5H
DB 05AH
RSEG ?C_INITSEG
DB 001H
DB num
DB 000H
; #include "3552.h"
; #include "i2cm.h"
;
; unsigned char num = 0x00;
; unsigned char code DATA[]={0x55,0xAA,0xA5,0x5A};
; unsigned char idata SDATA[10];
; unsigned char trans_done;
; unsigned char idata Slave_Adr;
; unsigned char idata FReceive_Done;
;
; //------------------------------------------------------
; //i2c interrupt service routine
; //------------------------------------------------------
;
CSEG AT 0002BH
LJMP i2c_isr
; void i2c_isr(void) interrupt 5
RSEG ?PR?i2c_isr?I2C_M
USING 0
i2c_isr:
PUSH ACC
PUSH B
PUSH DPH
PUSH DPL
PUSH PSW
MOV PSW,#00H
PUSH AR0
PUSH AR1
PUSH AR2
PUSH AR3
PUSH AR4
PUSH AR5
PUSH AR6
PUSH AR7
USING 0
; SOURCE LINE # 15
; {
; switch(S1STA)
; SOURCE LINE # 17
MOV R7,S1STA
MOV A,R7
LCALL ?C?CCASE
DW ?C0002
DB 00H
DW ?C0003
DB 08H
DW ?C0010
DB 010H
DW ?C0004
DB 018H
DW ?C0008
DB 020H
DW ?C0005
DB 028H
DW ?C0009
DB 030H
DW ?C0011
DB 040H
DW ?C0014
DB 048H
DW ?C0012
DB 050H
DW ?C0013
DB 058H
DW ?C0015
DB 060H
DW ?C0016
DB 068H
DW ?C0017
DB 080H
DW ?C0018
DB 088H
DW ?C0019
DB 0A0H
DW ?C0020
DB 0A8H
DW ?C0021
DB 0B8H
DW ?C0024
DB 0C0H
DW 00H
DW ?C0025
; {
; SOURCE LINE # 18
; case Bus_error:
; SOURCE LINE # 19
?C0002:
; transreg(Bus_error);
; SOURCE LINE # 20
CLR A
MOV R7,A
LCALL _transreg
; break;
; SOURCE LINE # 21
LJMP ?C0025
; //======master transmitter mode=====
; case M_START: //0x08
; SOURCE LINE # 23
?C0003:
; transreg(M_START);
; SOURCE LINE # 24
MOV R7,#08H
LCALL _transreg
; S1DAT = Slave_Adr; //sla+R/W
; SOURCE LINE # 25
MOV R0,#LOW (Slave_Adr)
MOV A,@R0
MOV S1DAT,A
; num=0;
; SOURCE LINE # 26
; S1CON = RELEASE_BUS_ACK;
; SOURCE LINE # 27
; break;
; SOURCE LINE # 28
SJMP ?C0032
; //-------------------------
; case MT_SLAVE_ACK: //0x18
; SOURCE LINE # 30
?C0004:
; transreg(MT_SLAVE_ACK);
; SOURCE LINE # 31
MOV R7,#018H
LCALL _transreg
; S1DAT = DATA[num];
; SOURCE LINE # 32
; num++;
; SOURCE LINE # 33
; S1CON = RELEASE_BUS_ACK;
; SOURCE LINE # 34
; break;
; SOURCE LINE # 35
LJMP ?C0028
; //-------------------------
; case MT_DATA: //0x28
; SOURCE LINE # 37
?C0005:
; transreg(MT_DATA);
; SOURCE LINE # 38
MOV R7,#028H
LCALL _transreg
; if(num<4)
; SOURCE LINE # 39
MOV A,num
CLR C
SUBB A,#04H
JNC ?C0034
; {
; SOURCE LINE # 40
; S1DAT=DATA[num];
; SOURCE LINE # 41
?C0027:
; num++;
; SOURCE LINE # 42
; S1CON = RELEASE_BUS_ACK;
; SOURCE LINE # 43
; }
; SOURCE LINE # 44
LJMP ?C0028
?C0006:
; else
; {
; SOURCE LINE # 46
; S1CON = SEND_STOP_ACK;
; SOURCE LINE # 47
; }
; SOURCE LINE # 48
; break;
; SOURCE LINE # 49
SJMP ?C0034
; //-------------------------
; case MT_SLAVE_NONACK: //0x20
; SOURCE LINE # 51
?C0008:
; transreg(MT_SLAVE_NONACK);
; SOURCE LINE # 52
MOV R7,#020H
LCALL _transreg
; S1CON = SEND_STOP_ACK;
; SOURCE LINE # 53
?C0029:
; break;
; SOURCE LINE # 54
SJMP ?C0034
; //-------------------------
; case MT_DATA_NONACK: //0x30
; SOURCE LINE # 56
?C0009:
; transreg(MT_DATA_NONACK);
; SOURCE LINE # 57
MOV R7,#030H
LCALL _transreg
; S1CON = SEND_STOP_ACK;
; SOURCE LINE # 58
?C0030:
; break;
; SOURCE LINE # 59
SJMP ?C0034
; //-------------------------
; case M_RESTART: //0x10
; SOURCE LINE # 61
?C0010:
; transreg(M_RESTART);
; SOURCE LINE # 62
MOV R7,#010H
LCALL _transreg
; S1DAT = Slave_Adr;
; SOURCE LINE # 63
MOV R0,#LOW (Slave_Adr)
MOV A,@R0
MOV S1DAT,A
; S1CON = RELEASE_BUS_ACK;
; SOURCE LINE # 64
MOV S1CON,#0C6H
; num = 0;
; SOURCE LINE # 65
MOV num,#00H
; break;
; SOURCE LINE # 66
LJMP ?C0025
; //==========================================
;
; //======master receiver mode================
; case MR_SLAVE_ACK: //0x40
; SOURCE LINE # 70
?C0011:
; transreg(MR_SLAVE_ACK);
; SOURCE LINE # 71
MOV R7,#040H
LCALL _transreg
; num=0;
; SOURCE LINE # 72
?C0026:
; S1CON = RELEASE_BUS_ACK;
; SOURCE LINE # 73
; break;
; SOURCE LINE # 74
SJMP ?C0032
; //--------------------------
; case MR_DATA_ACK: //0x50
; SOURCE LINE # 76
?C0012:
; transreg(MR_DATA_ACK);
; SOURCE LINE # 77
MOV R7,#050H
; SDATA[num]=S1DAT;
; SOURCE LINE # 78
; num++;
; SOURCE LINE # 79
; S1CON = RELEASE_BUS_ACK;
; SOURCE LINE # 80
; break;
; SOURCE LINE # 81
SJMP ?C0033
; //-------------------------
; case MR_LDATA_ACK: //0x58
; SOURCE LINE # 83
?C0013:
; transreg(MR_LDATA_ACK);
; SOURCE LINE # 84
MOV R7,#058H
LCALL _transreg
; SDATA[num]=S1DAT;
; SOURCE LINE # 85
MOV A,#LOW (SDATA)
ADD A,num
MOV R0,A
MOV @R0,S1DAT
; num++;
; SOURCE LINE # 86
INC num
; S1CON=SEND_STOP_ACK;
; SOURCE LINE # 87
?C0031:
; break;
; SOURCE LINE # 88
SJMP ?C0034
; //--------------------------
; case MR_SLAVE_NONACK: //0x48
; SOURCE LINE # 90
?C0014:
; transreg(MR_SLAVE_NONACK);
; SOURCE LINE # 91
MOV R7,#048H
LCALL _transreg
; S1CON=SEND_STOP_ACK;
; SOURCE LINE # 92
?C0034:
MOV S1CON,#0D6H
; break;
; SOURCE LINE # 93
SJMP ?C0025
; //==========================================
;
; //=====SLAVE RECEIVE mode===================
; case SR_SLAW_ACK: //0x60
; SOURCE LINE # 97
?C0015:
; transreg(SR_SLAW_ACK);
; SOURCE LINE # 98
MOV R7,#060H
LCALL _transreg
; num = 0;
; SOURCE LINE # 99
?C0032:
MOV num,#00H
; S1CON=RELEASE_BUS_ACK;
; SOURCE LINE # 100
; break;
; SOURCE LINE # 101
SJMP ?C0036
;
; case SR_SLAW_NONACK: //0x68
; SOURCE LINE # 103
?C0016:
; transreg(SR_SLAW_NONACK);
; SOURCE LINE # 104
MOV R7,#068H
LCALL _transreg
; num=0;
; SOURCE LINE # 105
MOV num,#00H
; S1CON=RELEASE_BUS_NONACK;
; SOURCE LINE # 106
MOV S1CON,#0C2H
;
; case SR_DATA_ACK: //0x80
; SOURCE LINE # 108
?C0017:
; transreg(SR_DATA_ACK);
; SOURCE LINE # 109
MOV R7,#080H
?C0033:
LCALL _transreg
; SDATA[num]=S1DAT;
; SOURCE LINE # 110
MOV A,#LOW (SDATA)
ADD A,num
MOV R0,A
MOV @R0,S1DAT
; num++;
; SOURCE LINE # 111
INC num
; S1CON=RELEASE_BUS_ACK;
; SOURCE LINE # 112
?C0035:
; break;
; SOURCE LINE # 113
SJMP ?C0036
;
; case SR_DATA_NONACK: //0x88
; SOURCE LINE # 115
?C0018:
; transreg(SR_DATA_NONACK);
; SOURCE LINE # 116
MOV R7,#088H
LCALL _transreg
; SDATA[num]=S1DAT;
; SOURCE LINE # 117
MOV A,#LOW (SDATA)
ADD A,num
MOV R0,A
MOV @R0,S1DAT
; num++;
; SOURCE LINE # 118
INC num
; S1CON=RELEASE_BUS_NONACK;
; SOURCE LINE # 119
MOV S1CON,#0C2H
; break;
; SOURCE LINE # 120
SJMP ?C0025
;
; case SR_STOP_ACK: //0xA0 receive has done
; SOURCE LINE # 122
?C0019:
; transreg(SR_STOP_ACK);
; SOURCE LINE # 123
MOV R7,#0A0H
LCALL _transreg
; S1CON=RELEASE_BUS_ACK;
; SOURCE LINE # 124
MOV S1CON,#0C6H
; FReceive_Done = 1;
; SOURCE LINE # 125
MOV R0,#LOW (FReceive_Done)
MOV @R0,#01H
; break;
; SOURCE LINE # 126
SJMP ?C0025
; //==========================================
; //=====SLAVE TRANSMITTER mode===============
; case ST_SLAR_ACK: //0xA8
; SOURCE LINE # 129
?C0020:
; transreg(ST_SLAR_ACK);
; SOURCE LINE # 130
MOV R7,#0A8H
LCALL _transreg
; num=0;
; SOURCE LINE # 131
MOV num,#00H
; S1DAT = DATA[num];
; SOURCE LINE # 132
; num++;
; SOURCE LINE # 133
; S1CON=RELEASE_BUS_ACK;
; SOURCE LINE # 134
;
; break;
; SOURCE LINE # 136
SJMP ?C0037
;
; case ST_DATA_ACK: //0xB8
; SOURCE LINE # 138
?C0021:
; transreg(ST_DATA_ACK);
; SOURCE LINE # 139
MOV R7,#0B8H
LCALL _transreg
; if(num<4)
; SOURCE LINE # 140
MOV A,num
CLR C
SUBB A,#04H
JNC ?C0022
; {
; SOURCE LINE # 141
; S1DAT=DATA[num];
; SOURCE LINE # 142
?C0028:
?C0037:
MOV A,num
MOV DPTR,#DATA?
MOVC A,@A+DPTR
MOV S1DAT,A
; num++;
; SOURCE LINE # 143
INC num
; S1CON = RELEASE_BUS_ACK;
; SOURCE LINE # 144
; }
; SOURCE LINE # 145
SJMP ?C0039
?C0022:
; else
; {
; SOURCE LINE # 147
; S1CON = RELEASE_BUS_ACK;
; SOURCE LINE # 148
?C0036:
?C0038:
; }
; SOURCE LINE # 149
;
; break;
; SOURCE LINE # 151
SJMP ?C0039
;
; case ST_STOP_NONACK : //0xC0
; SOURCE LINE # 153
?C0024:
; transreg(ST_STOP_NONACK);
; SOURCE LINE # 154
MOV R7,#0C0H
LCALL _transreg
; S1CON=RELEASE_BUS_ACK;
; SOURCE LINE # 155
?C0039:
MOV S1CON,#0C6H
; break;
; SOURCE LINE # 156
;
; //==========================================
; }
; SOURCE LINE # 159
; }
; SOURCE LINE # 160
?C0025:
POP AR7
POP AR6
POP AR5
POP AR4
POP AR3
POP AR2
POP AR1
POP AR0
POP PSW
POP DPL
POP DPH
POP B
POP ACC
RETI
; END OF i2c_isr
END
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