📄 i2c.lst
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C51 COMPILER V7.50 I2C 08/20/2007 10:23:30 PAGE 1
C51 COMPILER V7.50, COMPILATION OF MODULE I2C
OBJECT MODULE PLACED IN I2c.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE I2c.c COMPACT OPTIMIZE(9,SIZE)
line level source
1 //-------------------------------------------------------------
2 // This is changed for sdcc compiler 2.2.0a LJY000721
3 // ver0.11 2/20/2001 Support Z86129 Line 21 decoder.
4 //-------------------------------------------------------------
5 /*#include <io51.h>*/
6 //#include <pk-51.h> LJY000721
7
8 #include "Config.h"
9
10 #include "reg.h"
11 #include "typedefs.h"
12 #include "I2C.h"
13 #include "main.h"
14 #include "debug.h"
15 #include "printf.h"
16 #include "osdbasic.h"
17
18 #define I2C_SCL P1_0
19 #define I2C_SDA P1_1
20
21 #define ID_ADDR 0xc5
22 #define ID_DATA 0xc6
23
24 extern PDATA BYTE DebugLevel;
25
26 ///extern IDATA BYTE adc_i2c_address, CurrentADC;
27 //IDATA BYTE I2CAddr, I2CIdx, I2CData;
28
29 /*****************************************************************************/
30 /* */
31 /*****************************************************************************/
32 #define I2C_FAST
33
34 #ifdef I2C_FAST
35 #define I2Cdelay()
36 #else
void I2Cdelay(void)
{
BYTE i;
for(i=0; i<1; i++){
}
}
#endif
44
45 #if (defined QVGA) || (defined WQVGA)
46 void I2C_delay(void)
47 {
48 1 BYTE i;
49 1 for(i=0; i<255; i++){
50 2 i=i;
51 2 }
52 1 for(i=0; i<128; i++){
53 2 i=i;
54 2 }
55 1 }
C51 COMPILER V7.50 I2C 08/20/2007 10:23:30 PAGE 2
56 #else
#define I2C_delay()
#endif
59
60 BYTE I2CWriteData_Wait(BYTE value);
61
62 void WriteTW88(BYTE index, BYTE dat)
63 {
64 1 BYTE addr = TW88I2CAddress;
65 1
66 1 #ifdef DEBUG_I2C
if( DebugLevel==0xff )
Printf("Write %02xh to [Adrs(%02xh)Index(%02xh)]\n\r", (WORD)dat, (WORD)addr, (WORD)index);
#endif
70 1
71 1 I2CStart();
72 1 I2CWriteData(addr);
73 1 I2CWriteData(index);
74 1 I2CWriteData(dat);
75 1 I2CStop();
76 1 }
77
78 /* For testing chip.............................
79 BYTE WriteTW88_Wait(BYTE index, BYTE dat)
80 {
81 #ifdef DEBUG_I2C
82 if( DebugLevel==0xff )
83 Printf("Write %02xh to [Adrs(%02xh)Index(%02xh)]\n\r", (WORD)dat, (WORD)TW88I2CAddress, (WORD)index);
84 #endif
85
86 I2CStart();
87 if( !I2CWriteData_Wait(TW88I2CAddress & 0xFE) )
88 return 0;
89 if( !I2CWriteData_Wait(index) )
90 return 0;
91 if( !I2CWriteData_Wait(dat) )
92 return 0;
93 I2CStop();
94 return 1;
95
96 }
97 */
98
99 BYTE ReadTW88(BYTE index)
100 {
101 1 BYTE val;
102 1 BYTE addr = TW88I2CAddress;
103 1
104 1 I2CStart();
105 1 I2CWriteData(addr);
106 1 I2CWriteData(index);
107 1 I2CStart();
108 1 I2CWriteData(addr | 0x01);
109 1 val = I2CReadData();
110 1 I2CStop();
111 1
112 1 #ifdef DEBUG_I2C
if( DebugLevel==0xff )
Printf("Read [Adrs:%02xh,Index:%02xh] %02xh\r\n", (WORD)addr, (WORD)index, (WORD)val);
#endif
116 1
117 1 return val;
C51 COMPILER V7.50 I2C 08/20/2007 10:23:30 PAGE 3
118 1 }
119
120 #if defined( SUPPORT_PC ) || defined( SUPPORT_DTV )
121 void WriteADC(BYTE index, BYTE dat)
122 {
123 1 //#ifdef DEBUG_OSD
124 1 //if( DebugLevel==0xff )
125 1 // Printf("Write ADC %02xh to [Adrs(%02xh)Index(%02xh)\r\n", (WORD)dat, (WORD)ADCI2CAddress, (WORD)index
-);
126 1 //#endif
127 1
128 1 WriteTW88(ID_ADDR, index);
129 1 WriteTW88(ID_DATA, dat);
130 1
131 1 }
132
133 BYTE ReadADC(BYTE index)
134 {
135 1 BYTE val, val1;
136 1
137 1 val1=ReadTW88(0xb0);
138 1 WriteTW88(0xb0, val1|0x80);
139 1
140 1 WriteTW88(ID_ADDR, index);
141 1 WriteTW88(ID_ADDR, index);
142 1 val = ReadTW88(ID_DATA);
143 1
144 1 WriteTW88(0xb0, val1&0x7f);
145 1
146 1 //#ifdef DEBUG_OSD
147 1 //if( DebugLevel==0xff )
148 1 // Printf("Read ADC[Adrs:%02xh,Index:%02xh] %02xh\r\n", (WORD)TW88I2CAddress, (WORD)index, (WORD)val);
149 1 //#endif
150 1
151 1 return val;
152 1 }
153 #endif // SUPPORT_PC
154
155 void WriteEEP(WORD index, BYTE dat)
156 {
157 1 BYTE addr;
158 1
159 1 addr = (EEPROMI2CAddress | (index>>7)) & 0xfe;
160 1
161 1 I2CStart();
162 1 I2CWriteData(addr);
163 1 I2CWriteData((BYTE)index);
164 1 I2CWriteData(dat);
165 1 I2CStop();
166 1
167 1 #ifdef DEBUG_OSD
if( DebugLevel==0xff )
Printf("Write %02xh to [Adrs(%02xh)Index(%02xh)\r\n", (WORD)dat, (WORD)addr, (WORD)index );
#endif
171 1
172 1 delay(2);
173 1 }
174
175 BYTE ReadEEP(WORD index)
176 {
177 1 BYTE val;
178 1 BYTE addr;
C51 COMPILER V7.50 I2C 08/20/2007 10:23:30 PAGE 4
179 1
180 1 addr = (EEPROMI2CAddress | (index>>7)) & 0xfe;
181 1
182 1 val = ReadI2C(addr,(BYTE)index);
183 1
184 1 #ifdef DEBUG_OSD
if( DebugLevel==0xff )
Printf("Read [Adrs:%02xh,Index:%02xh] %02xh\r\n", (WORD)addr, (WORD)index, (WORD)val);
#endif
188 1
189 1 return val;
190 1 }
191
192 BYTE ReadI2C(BYTE addr, BYTE index)
193 {
194 1 BYTE val;
195 1
196 1 I2CStart();
197 1 I2CWriteData(addr);
198 1 I2CWriteData(index);
199 1 I2CStart();
200 1 I2CWriteData(addr | 0x01);
201 1 val = I2CReadData();
202 1 I2CStop();
203 1
204 1 return val;
205 1 }
206
207
208 void WriteI2C(BYTE addr, BYTE index, BYTE val)
209 {
210 1 I2CStart();
211 1 I2CWriteData(addr);
212 1 I2CWriteData(index);
213 1 I2CWriteData(val);
214 1 I2CStop();
215 1 }
216
217 void WriteI2CnD(BYTE addr, BYTE index, BYTE val, BYTE cnt)
218 {
219 1 BYTE i;
220 1
221 1 I2CStart();
222 1 I2CWriteData(addr);
223 1 I2CWriteData(index);
224 1
225 1 for(i=0; i<cnt; i++){
226 2 I2CWriteData(val); //LJY050101
227 2 I2C_delay();
228 2 }
229 1
230 1 I2CStop();
231 1 }
232
233 void WriteI2Cn(BYTE addr, BYTE index, BYTE *val, BYTE cnt)
234 {
235 1 BYTE i;
236 1
237 1 I2CStart();
238 1 I2CWriteData(addr);
239 1 I2CWriteData(index);
240 1
C51 COMPILER V7.50 I2C 08/20/2007 10:23:30 PAGE 5
241 1 for(i=0; i<cnt; i++){
242 2 I2CWriteData(*(val+i));
243 2 I2C_delay();
244 2 }
245 1 I2CStop();
246 1 }
247
248 BYTE WriteI2Cn_(BYTE addr, BYTE *val, BYTE cnt)
249 {
250 1 BYTE rd=1, i;
251 1
252 1 I2CStart();
253 1 I2CWriteData(addr);
254 1
255 1 for(i=0; i<cnt; i++){
256 2 I2CWriteData(*(val+i)); //LJY050101
257 2 }
258 1 I2CStop();
259 1
260 1 return rd;
261 1 }
262
263 //BYTE I2CWriteData_Wait(BYTE value);
264 void I2CReadByteMSP(BYTE addr, BYTE index, BYTE *pd, BYTE cnt)
265 {
266 1 BYTE i;
267 1
268 1 I2CStart();
269 1 I2CWriteData_Wait(addr);
270 1 I2CWriteData(index);
271 1 for(i=0; i<cnt; i++) {
272 2 I2CWriteData(*(pd+i));
273 2 }
274 1 I2CStart();
275 1 I2CWriteData_Wait(addr | 0x01);
276 1 *pd = I2CReadDataWithACK();
277 1 *(pd+1) = I2CReadData();
278 1
279 1 I2CStop();
280 1 }
281
282 #ifdef DEBUG_TV
BYTE ReadI2CStatus( BYTE addr )
{
BYTE val;
I2CStart();
I2CWriteData(addr | 0x01);
val = I2CReadData();
I2CStop();
return val;
}
#endif // DEBUG_TV
295
296
297 #ifdef SERIAL
298 BYTE I2CReadDataWithNAK(void)
299 {
300 1 return I2CReadData();
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