?? interrupt.lst
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C51 COMPILER V7.05 INTERRUPT 04/12/2005 09:13:15 PAGE 1
C51 COMPILER V7.05, COMPILATION OF MODULE INTERRUPT
OBJECT MODULE PLACED IN interrupt.OBJ
COMPILER INVOKED BY: E:\Cygnal\IDEfiles\C51\BIN\C51.exe interrupt.c DB OE
stmt level source
1 #define INT_ISR_C
2
3
4 #include "c8051F330.h"
5 #include "rs232.h"
6
7
8 char rece,count_UART,count_UART1;
9 char Rec_OK,Tran_OK;
10 char Tran_Flag;
11 char xdata sRecComBuf[8];
12 char *pointer;
13 void UART_Isr(void) interrupt 4
14 {
15 1 ES0 = 0x0;
16 1 if(TI0)
17 1 {
18 2 SCON0 &=0xFD;
19 2 Tran_Flag=0;
20 2 if (count_UART1==8)
21 2 Tran_OK=0x45;
22 2
23 2 }
24 1 else
25 1 {
26 2 SCON0 &=0xFE;
27 2 *pointer++ = SBUF0;
28 2 count_UART++;
29 2 if (count_UART==8)
30 2 {
31 3 Rec_OK=0x23;
32 3 }
33 2
34 2 }
35 1 ES0 = 0x1;
36 1 }
37
38
39
40
41
42 //------------------------------------------------------------------------------------
43 // Timer3 Interrupt Service Routine (ISR)
44 //------------------------------------------------------------------------------------
45 //
46 // A Timer3 interrupt indicates an SMBus SCL low timeout.
47 // The SMBus is disabled and re-enabled here
48 //
49 void Timer3_ISR (void) interrupt 14
50 {
51 1 SMB0CF &= ~0x80; // Disable SMBus
52 1 SMB0CF |= 0x80; // Re-enable SMBus
53 1 TMR3CN &= ~0x80; // Clear Timer3 interrupt-pending flag
54 1 }
55
C51 COMPILER V7.05 INTERRUPT 04/12/2005 09:13:15 PAGE 2
56
57
58
59
60
61 //------------------------------------------------------------------------------------
62 // SMBus Interrupt Service Routine (ISR)
63 //------------------------------------------------------------------------------------
64 //
65 // SMBus ISR state machine
66 // - Master only implementation - no slave or arbitration states defined
67 // - All incoming data is written starting at the global pointer <pSMB_DATA_IN>
68 // - All outgoing data is read from the global pointer <pSMB_DATA_OUT>
69 //
70 void SMBus_ISR (void) interrupt 7
71 {
72 1 bit FAIL = 0; // Used by the ISR to flag failed
73 1 // transfers
74 1
75 1 static char i; // Used by the ISR to count the
76 1 // number of data bytes sent or
77 1 // received
78 1
79 1 static bit SEND_START = 0; // Send a start
80 1
81 1 switch (SMB0CN & 0xF0) // Status vector
82 1 {
83 2 // Master Transmitter/Receiver: START condition transmitted.
84 2 case SMB_MTSTA:
85 2 SMB0DAT = TARGET; // Load address of the target slave
86 2 SMB0DAT |= SMB_RW; // Load R/W bit
87 2 STA = 0; // Manually clear START bit
88 2 i = 0; // reset data byte counter
89 2 break;
90 2
91 2 // Master Transmitter: Data byte (or Slave Address) transmitted
92 2 case SMB_MTDB:
93 2 if (ACK) // Slave Address or Data Byte
94 2 { // Acknowledged?
95 3 if (SEND_START)
96 3 {
97 4 STA = 1;
98 4 SEND_START = 0;
99 4 break;
100 4 }
101 3 if(SMB_SENDWORDADDR) // Are we sending the word address?
102 3 {
103 4 SMB_SENDWORDADDR = 0; // Clear flag
104 4 SMB0DAT = WORD_ADDR; // send word's high 8bits address
105 4
106 4 /* if (SMB_RANDOMREAD)
107 4 {
108 4 SEND_START = 1; // send a START after the next ACK cycle
109 4 SMB_RW = READ;
110 4 }*/
111 4
112 4 break;
113 4 }
114 3
115 3 else if(SMB_SENDWORDADDR1) // Are we sending the word address?
116 3 {
117 4 SMB_SENDWORDADDR1 = 0; // Clear flag
C51 COMPILER V7.05 INTERRUPT 04/12/2005 09:13:15 PAGE 3
118 4 SMB0DAT = WORD_ADDR1; // send word's low 8bits address
119 4
120 4 if (SMB_RANDOMREAD)
121 4 {
122 5 SEND_START = 1; // send a START after the next ACK cycle
123 5 SMB_RW = READ;
124 5 }
125 4
126 4 break;
127 4 }
128 3
129 3 if (SMB_RW==WRITE) // Is this transfer a WRITE?
130 3 {
131 4
132 4 if (i < SMB_DATA_LEN) // Is there data to send?
133 4 {
134 5 SMB0DAT = *pSMB_DATA_OUT; // send data byte
135 5 pSMB_DATA_OUT++; // increment data out pointer
136 5 i++; // increment number of bytes sent
137 5 }
138 4 else
139 4 {
140 5 STO = 1; // set STO to terminte transfer
141 5 SMB_BUSY = 0; // clear software busy flag
142 5 }
143 4 }
144 3 else {} // If this transfer is a READ,
145 3 // then take no action. Slave
146 3 // address was transmitted. A
147 3 // separate 'case' is defined
148 3 // for data byte recieved.
149 3 }
150 2 else // If slave NACK,
151 2 {
152 3 if(SMB_ACKPOLL)
153 3 {
154 4 STA = 1; // Restart transfer
155 4 }
156 3 else
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