📄 sp3530.lst
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C51 COMPILER V7.05 SP3530 03/19/2007 15:47:59 PAGE 1
C51 COMPILER V7.05, COMPILATION OF MODULE SP3530
OBJECT MODULE PLACED IN sp3530.OBJ
COMPILER INVOKED BY: C:\SiLabs\MCU\IDEfiles\C51\BIN\C51.exe sp3530.c DB OE
stmt level source
1 #include <c8051f040.h> // SFR declarations
2 #include <intrins.h>
3 //------------------------------------------------------------------------------------
4 // Global CONSTANTS
5 //------------------------------------------------------------------------------------
6
7 #define WRITE 0x00 // SMBus WRITE command
8 #define READ 0x01 // SMBus READ command
9
10 // Device addresses (7 bits, lsb is a don't care)
11 #define CLOCK3530_ADDRESS_RESET 0x60 //1 ack
12 #define CLOCK3530_ADDRESS_STATUS 0x62 //2 ack
13 #define CLOCK3530_ADDRESS_DATEHOUR 0x64 //8 ack year month day week hour minute second
14 #define CLOCK3530_ADDRESS_HOUR 0x66 //4 ack hour minute second
15 #define CLOCK3530_ADDRESS_INT1 0x68 //3 ack
16 #define CLOCK3530_ADDRESS_INT2 0x6A //3 ack
17
18 union
19 {
20 unsigned char ClockString[7];
21 struct RealClock
22 {
23 unsigned char Year,Month,Day,Week,Hour,Minute,Second;
24 } RT;
25 } RealTime;
26
27
28 // SMBus states:
29 // MT = Master Transmitter
30 // MR = Master Receiver
31 #define SMB_BUS_ERROR 0x00 // (all modes) BUS ERROR
32 #define SMB_START 0x08 // (MT & MR) START transmitted
33 #define SMB_RP_START 0x10 // (MT & MR) repeated START
34 #define SMB_MTADDACK 0x18 // (MT) Slave address + W transmitted;
35 // ACK received
36 #define SMB_MTADDNACK 0x20 // (MT) Slave address + W transmitted;
37 // NACK received
38 #define SMB_MTDBACK 0x28 // (MT) data byte transmitted; ACK rec'vd
39 #define SMB_MTDBNACK 0x30 // (MT) data byte transmitted; NACK rec'vd
40 #define SMB_MTARBLOST 0x38 // (MT) arbitration lost
41 #define SMB_MRADDACK 0x40 // (MR) Slave address + R transmitted;
42 // ACK received
43 #define SMB_MRADDNACK 0x48 // (MR) Slave address + R transmitted;
44 // NACK received
45 #define SMB_MRDBACK 0x50 // (MR) data byte rec'vd; ACK transmitted
46 #define SMB_MRDBNACK 0x58 // (MR) data byte rec'vd; NACK transmitted
47
48
49 //-----------------------------------------------------------------------------------
50 //Global VARIABLES
51 //-----------------------------------------------------------------------------------
52 char COMMAND; // Holds the slave address + R/W bit for use in the SMBus ISR.
53
54 unsigned char *I2CDataBuff;
55
C51 COMPILER V7.05 SP3530 03/19/2007 15:47:59 PAGE 2
56 char BYTE_NUMBER; // Used by ISR to check what data has just been
57 // sent - High address byte, Low byte, or data byte
58
59 unsigned char HIGH_ADD, LOW_ADD; // High & Low byte for EEPROM memory address
60
61 bit SM_BUSY; // This bit is set when a send or receive
62 // is started. It is cleared by the
63 // ISR when the operation is finished.
64
65
66 //------------------------------------------------------------------------------------
67 // Function PROTOTYPES
68 //------------------------------------------------------------------------------------
69
70 void SMBus_ISR (void);
71
72 //------------------------------------------------------------------------------------
73 // MAIN Routine
74 //------------------------------------------------------------------------------------
75 //
76 // Main routine configures the crossbar and SMBus, and tests
77 // the SMBus interface between the three EEPROMs
78
79
80 void ResetRealClock(void)
81 {
82 1 while (SM_BUSY); // Wait for SMBus to be free.
83 1 SFRPAGE =SMB0_PAGE;
84 1 SM_BUSY = 1; // Occupy SMBus (set to busy)
85 1 SMB0CN = 0x44; // SMBus enabled, ACK on acknowledge cycle
86 1 BYTE_NUMBER = 0; // 2 address bytes.
87 1 COMMAND = (CLOCK3530_ADDRESS_RESET | READ); // Chip select + READ
88 1 STA = 1; // Start transfer
89 1 while (SM_BUSY); // Wait for transfer to finish
90 1 }
91
92 //======================写S-3530A内部实时数据寄存器程序=====================
93 //功能：将设定年、月、日、星期、时、分、秒数据写入S-3530A |
94 //入口：发送数据放在年、月、日、星期、时、分、秒各寄存器 |
95 //出口：NONE |
96 //==========================================================================
97 void SetRealClock(void)
98 {
99 1 while (SM_BUSY); // Wait for SMBus to be free.
100 1 SFRPAGE =SMB0_PAGE;
101 1 SM_BUSY = 1; // Occupy SMBus (set to busy)
102 1 SMB0CN = 0x44; // SMBus enabled, ACK on acknowledge cycle
103 1 BYTE_NUMBER = 7; // 2 address bytes.
104 1 COMMAND = (CLOCK3530_ADDRESS_DATEHOUR | WRITE); // Chip select + WRITE
105 1 I2CDataBuff = &RealTime.ClockString[0]; // Data to be writen
106 1 STA = 1;
107 1 while (SM_BUSY); // Start transfer
108 1 }
109
110 //==================读S-3530A实时数据寄存器子程序===========================
111 //功能：从S-3530A读入当前时间数据 |
112 //入口：NONE |
113 //出口：接收数据放在年、月、日、星期、时、分、秒各寄存器 |
114 //==========================================================================
115 void GetRealClock(void)
116 {
117 1 while (SM_BUSY); // Wait for SMBus to be free.
C51 COMPILER V7.05 SP3530 03/19/2007 15:47:59 PAGE 3
118 1 SFRPAGE =SMB0_PAGE;
119 1 SM_BUSY = 1; // Occupy SMBus (set to busy)
120 1 SMB0CN = 0x44; // SMBus enabled, ACK on acknowledge cycle
121 1 BYTE_NUMBER = 7; // 2 address bytes.
122 1 COMMAND = (CLOCK3530_ADDRESS_DATEHOUR | READ); // Chip select + READ
123 1 I2CDataBuff = &RealTime.ClockString[0]; // Data to be writen
124 1 STA = 1; // Start transfer
125 1 while (SM_BUSY); // Wait for transfer to finish
126 1 }
127
128 //============================写状态寄存器程序==============================
129 //功能：读/写S-3530A状态寄存器，对S-3530A进行设置 |
130 //入口：NONE 出口：NONE |
131 //==========================================================================
132 unsigned char GetRealClockStatus(void)
133 {
134 1 unsigned char result;
135 1 while (SM_BUSY); // Wait for SMBus to be free.
136 1 SFRPAGE =SMB0_PAGE;
137 1 SM_BUSY = 1; // Occupy SMBus (set to busy)
138 1 SMB0CN = 0x44; // SMBus enabled, ACK on acknowledge cycle
139 1 BYTE_NUMBER = 1;
140 1 COMMAND = (CLOCK3530_ADDRESS_STATUS | READ);
141 1 I2CDataBuff = &result;
142 1 STA = 1; // Start transfer
143 1 while (SM_BUSY); // Wait for transfer to finish
144 1 return result;
145 1 }
146 void SetRealClockStatus(unsigned char status)
147 {
148 1 while (SM_BUSY); // Wait for SMBus to be free.
149 1 SFRPAGE =SMB0_PAGE;
150 1 SM_BUSY = 1; // Occupy SMBus (set to busy)
151 1
152 1 SMB0CN = 0x44; // SMBus enabled, ACK on acknowledge cycle
153 1 BYTE_NUMBER = 1;
154 1 COMMAND = (CLOCK3530_ADDRESS_STATUS | WRITE);
155 1 I2CDataBuff = &status;
156 1 STA = 1; // Start transfer
157 1 }
158
159 #include "INTRINS.H"
160
161 unsigned char revolve(unsigned char val)
162 {
163 1 char i;
164 1 unsigned char val1=0;
165 1 for (i=0;i<8;i++)
166 1 {
167 2 if (val&0x1)
168 2 val1++;
169 2 val1=_crol_(val1,1);
170 2 val=_cror_(val,1);
171 2 }
172 1 val1=_cror_(val1,1);
173 1 return val1;
174 1 }
175
176 void main (void)
177 {
178 1 unsigned char var ;
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