📄 t.lst
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C51 COMPILER V7.06 T 06/27/2008 14:25:55 PAGE 1
C51 COMPILER V7.06, COMPILATION OF MODULE T
OBJECT MODULE PLACED IN t.OBJ
COMPILER INVOKED BY: f:\Keil\C51\BIN\C51.EXE t.c BROWSE DEBUG OBJECTEXTEND
stmt level source
1 #include <at89x51.h>
2 #include <intrins.h>
3
4 #define uchar unsigned char
5 #define uint unsigned int
6 #define byte unsigned char
7 #if 0
bit I2C_Start(void);
void I2C_Stop(void);
void I2C_Ack(void);
void I2C_Nack(void);
bit I2C_Send_Byte( uchar);
uchar I2C_Receive_Byte(void);
void AT24C64_R(void *mcu_address,uint AT24C64_address,uint count);
void AT24C64_W(void *mcu_address,uint AT24C64_address,uint count);
#else
17 void I2C_ReceiveFromSubAddress(byte SlaveAddress,uint SubAddress,byte *pRData,uchar N);
18 void I2C_SendToSubAddress(byte SlaveAddress,uint SubAddress,byte *pSData,uchar N);
19
20 #endif
21
22 //RXD TXD
23 #define KEY_LINE1 P3_0
24 #define KEY_LINE2 P3_1
25 #define KEY_LINE3 P3_7
26
27 //T0 T1
28 #define SCL P3_4
29 #define SDA P3_5
30 void delay(unsigned int n)
31 {
32 1 unsigned int i,j;
33 1 for(j=0;j<100;j++)
34 1 for(i=0;i<n;i++);
35 1 }
36 unsigned char wdat[10]={0xF0,0x0F,0xA0,0x0A,0xAA,0x99,0x3C,0xC3,0x81,0x18};
37 unsigned char rdat[10]={0};
38 void main()
39 {
40 1 EX0=0;//enable int 1
41 1 EX1=1;//
42 1 ET0 = 0;//disable 2 timer
43 1 ET1 = 0;//
44 1 IT0=0;//
45 1 IT1=1;//edge trigger
46 1
47 1 EA=1;
48 1 P1=~0x00;
49 1
50 1 for(;;);
51 1
52 1 }
53 unsigned char func,pw,pr;
54 void interrupt_func1() interrupt 2
55 {
C51 COMPILER V7.06 T 06/27/2008 14:25:55 PAGE 2
56 1 unsigned char k1,k2,k3;
57 1 delay(1);
58 1 k1=KEY_LINE1;
59 1 k2=KEY_LINE2;
60 1 k3=KEY_LINE3;
61 1
62 1
63 1 if(k1==0)
64 1 {
65 2 func=(func+1)%4;
66 2
67 2 if(func==0) pw=0;
68 2 else if(func==1) pr=0;
69 2
70 2 P1=~func;
71 2 }
72 1
73 1
74 1 if(func==0)//pw display
75 1 {
76 2 if(k2==0) {unsigned int i;for(i=0;i<10;i++)rdat[i]=0; P1=~0xA0;}//clear rdat to 0
77 2 else if(k3==0) {unsigned int i;for(i=0;i<10;i++)wdat[i]=0xAA; P1=~0xAA;}//set wdat to 0xAA
78 2 }
79 1 else if(func==1)//pr display
80 1 {
81 2 if(k2==0) {pw=(pw+9)%10;P1=~wdat[pw];}//pw--
82 2 else if(k3==0) {pw=(pw+1)%10;P1=~wdat[pw];}//pw++
83 2 }
84 1 else if(func==2)//pr display
85 1 {
86 2 if(k2==0) {pr=(pr+9)%10;P1=~rdat[pr];}//pr--
87 2 else if(k3==0) {pr=(pr+1)%10;P1=~rdat[pr];}//pr++
88 2 }
89 1 #if 0
else if(func==3)//write and read
{
if(k2==0) {AT24C64_W(wdat,0x100,10); P1=~0xF0; }// write
else if(k3==0) {AT24C64_R(rdat,0x100,10); P1=~0xF1;}// read
}
#else
96 1 else if(func==3)//write and read
97 1 {
98 2 if(k2==0) {I2C_SendToSubAddress(0xa0,0x100,wdat,10); P1=~0xF3; }// write
99 2 else if(k3==0) {I2C_ReceiveFromSubAddress(0xa0,0x100,rdat,10); P1=~0xF1;}// read
100 2 }
101 1 #endif
102 1
103 1 }
104
105 #if 0
#define I2C_SCK SCL
#define I2C_SDA SDA
/*24C64子程序 */
void Delay_10_uS(void)
{
//uchar i=10;
//while(i--);
}
void Delay_N_mS( uint n_milisecond) /* n mS delay */
{
C51 COMPILER V7.06 T 06/27/2008 14:25:55 PAGE 3
uint i;
while(n_milisecond--)
{
i=10;//37;
while(i--);
}
}
bit I2C_Start(void)
{
Delay_10_uS();
I2C_SDA =1;
Delay_10_uS();
I2C_SCK =1;
Delay_10_uS();
if ( I2C_SDA == 0) return 0;
if ( I2C_SCK == 0) return 0;
I2C_SDA = 0;
Delay_10_uS();
I2C_SCK = 0;
Delay_10_uS();
return 1;
}
void I2C_Stop(void)
{
Delay_10_uS();
I2C_SDA = 0;
Delay_10_uS();
I2C_SCK = 1;
Delay_10_uS();
I2C_SDA = 1;
Delay_10_uS();
}
void I2C_Ack(void)
{
Delay_10_uS();
I2C_SDA=0;
Delay_10_uS();
I2C_SCK=1;
Delay_10_uS();
I2C_SCK=0;
Delay_10_uS();
}
void I2C_Nack(void)
{
Delay_10_uS();
I2C_SDA=1;
Delay_10_uS();
I2C_SCK=1;
Delay_10_uS();
I2C_SCK=0;
Delay_10_uS();
}
bit I2C_Send_Byte( uchar d)
{
uchar i = 8;
bit bit_ack;
while( i-- )
{
Delay_10_uS();
if ( d &0x80 ) I2C_SDA =1;
else I2C_SDA =0;
Delay_10_uS();
C51 COMPILER V7.06 T 06/27/2008 14:25:55 PAGE 4
I2C_SCK = 1;
Delay_10_uS();
I2C_SCK = 0;
d = d << 1;
}
Delay_10_uS();
I2C_SDA = 1;
Delay_10_uS();
I2C_SCK = 1;
Delay_10_uS();
bit_ack = I2C_SDA;
I2C_SCK =0;
Delay_10_uS();
return bit_ack;
}
uchar I2C_Receive_Byte(void)
{
uchar i = 8, d;
Delay_10_uS();
I2C_SDA = 1;
while ( i--)
{
d = d << 1;
Delay_10_uS();
I2C_SCK =1;
if ( I2C_SDA ) d++;
Delay_10_uS();
I2C_SCK =0;
}
return d;
}
void AT24C64_W(void *mcu_address,uint AT24C64_address,uint count)
{
//DOG_WDI=!DOG_WDI;
//DOGTIME=0;
while(count--)
{
I2C_Start();
/*I2C_Send_Byte( 0xa0 + AT24C64_address /256 *2);*/ /* 24C16 USE */
I2C_Send_Byte( 0xa0 );
I2C_Send_Byte( AT24C64_address/256 );
I2C_Send_Byte( AT24C64_address %256 );
I2C_Send_Byte( *(uchar*)mcu_address );
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