PCF8653 RTC时钟模块时间异常问题修复

  1 #include "stdio.h"
  2 #include "lib_i2c.h"
  3 //==============================================================================
  4 //
  5 //                              DEFINES
  6 //
  7 //==============================================================================
  8 
  9 #define I2C_ADDR        (0xA2>>1)
 10 
 11 //==============================================================================
 12 //
 13 //                              EXTERNAL VARIABLES REFERENCE
 14 //
 15 //==============================================================================
 16 
 17 //==============================================================================
 18 //
 19 //                              EXTERNAL FUNCTION PROTOTYPES
 20 //
 21 //==============================================================================
 22 
 23 //==============================================================================
 24 //
 25 //                              VARIABLES
 26 //
 27 //==============================================================================
 28 
 29 //==============================================================================
 30 //
 31 //                              FUNCTIONS
 32 //
 33 //==============================================================================
 34 s32 gm_pcf8563_check()
 35 {
 36     s32 REG0,REG1,REG2;
 37     REG0 = gm_i2c_read(I2C_ADDR,0x02);
 38     REG1 = gm_i2c_read(I2C_ADDR,0x03);
 39     REG2 = gm_i2c_read(I2C_ADDR,0x04);
 40     printf("0:%d,1:%d,2:%d\n",REG0,REG1,REG2);
 41     if((REG0 < 0) || (REG1 < 0) || (REG2 < 0) || (REG0 == 0xFF) || (REG1 == 0xFF) || (REG2 == 0xFF))
 42     {
 43         printf("pcf8563 not exist\n");
 44       return -1;
 45     }
 46     else
 47     {
 48         printf("pcf8563 exist\n");
 49         return 0;
 50     }
 51 }
 52 
 53 
 54 s32 gm_pcf8563_gettime(u32 *year, u32 *mon, u32 *mday,
 55                        u32 *hour, u32 *min, u32 *sec)
 56 {
 57 #if 1    
 58    struct i2c_msg  msgs[2];
 59    unsigned char   tmp[2], tmp2[7];   
 60 
 61    tmp[0]        = 0x2 & 0xFF;
 62    msgs[0].addr  = I2C_ADDR;
 63    msgs[0].flags = 0;
 64    msgs[0].len   = 1;
 65    msgs[0].buf   = tmp;
 66 
 67    tmp2[0]       = 0;
 68    msgs[1].addr  = I2C_ADDR;
 69    msgs[1].flags = 1;
 70    msgs[1].len   = 7;
 71    msgs[1].buf   = tmp2;
 72 
 73    if (gm_i2c_transfer(msgs, 2) != 2){
 74        printf("PCF8563 Get Fail\n");
 75         return FAIL;
 76    }
 77 #if 0
 78 {  
 79    int i;
 80    printf("\n\n");
 81    for(i=0; i<7; i++){
 82        printf("%d, ", tmp2[i]);
 83    }
 84    printf("\n\n");
 85 }   
 86 #endif   
 87    *sec = (u32)(((tmp2[0]>>4)&0x7)*10 + (tmp2[0]&0x0F));
 88    *min = (u32)(((tmp2[1]>>4)&0x7)*10 + (tmp2[1]&0x0F));
 89    *hour = (u32)(((tmp2[2]>>4)&0x3)*10 + (tmp2[2]&0x0F));
 90    *mday = (u32)(((tmp2[3]>>4)&0x3)*10 + (tmp2[3]&0x0F));
 91    *mon = (u32)(((tmp2[5]>>4)&0x1)*10 + (tmp2[5]&0x0F) + ((tmp2[5]&BIT7)? 1 : 0));
 92    *year = (u32)(((tmp2[6]>>4)&0xF)*10 + (tmp2[6]&0x0F)) + 2000;  
 93     printf("hi,gm_pcf8563_gettime:%04d/%02d/%02d, %02d:%02d:%02d\n", *year, *mon, *mday, *hour, *min, *sec);      
 94     return SUCCESS;      
 95 
 96 #else
 97     s32 value;
 98 
 99     //lib_I2C_SetAddressMode(I2C_ADDR_MODE_8BIT);
100 
101     if ((value = gm_i2c_read(I2C_ADDR, 0x02)) < 0)
102     {
103         goto pcf8563_get_fail;
104     }
105     else
106     {
107         *sec = (int)(((value>>4)&0x7)*10 + (value&0x0F));
108     }
109 
110     if ((value = gm_i2c_read(I2C_ADDR, 0x03)) < 0)
111     {
112         goto pcf8563_get_fail;
113     }
114     else
115     {
116         *min = (int)(((value>>4)&0x7)*10 + (value&0x0F));
117     }
118 
119     if ((value = gm_i2c_read(I2C_ADDR, 0x04)) < 0)
120     {
121         goto pcf8563_get_fail;
122     }
123     else
124     {
125         *hour = (int)(((value>>4)&0x3)*10 + (value&0x0F));
126     }
127 
128     if ((value = gm_i2c_read(I2C_ADDR, 0x05)) < 0)
129     {
130         goto pcf8563_get_fail;
131     }
132     else
133     {
134         *mday = (int)(((value>>4)&0x3)*10 + (value&0x0F));
135     }
136 
137     if ((value = gm_i2c_read(I2C_ADDR, 0x07)) < 0)
138     {
139         goto pcf8563_get_fail;
140     }
141     else
142     {
143         *mon = (int)(((value>>4)&0x1)*10 + (value&0x0F) + ((value&BIT7)? 1 : 0));
144     }
145 
146     if ((value = gm_i2c_read(I2C_ADDR, 0x08)) < 0)
147     {
148         goto pcf8563_get_fail;
149     }
150     else
151     {
152         *year = (int)(((value>>4)&0xF)*10 + (value&0x0F)) + 1900;  /* years since 1900 */
153     }
154     
155     printf("gm_pcf8563_gettime: %d-%d-%d %d:%d:%d\n", *year, *mon, *mday, *hour, *min, *sec);
156 
157     return SUCCESS;
158 
159 pcf8563_get_fail:
160     printf("PCF8563 Get Fail\n");
161     return FAIL;
162     #endif
163 }
164 
165 s32 gm_pcf8563_settime(u32 year, u32 mon, u32 mday,
166                        u32 hour, u32 min, u32 sec)
167 {
168     if (year < 2000 || year > 2100 || mon > 12 || mday > 31 ||    //steven 20130410
169         hour > 23 || min > 59 || sec > 59)
170     {
171         return FAIL;
172     }
173     else
174     {
175         //lib_I2C_SetAddressMode(I2C_ADDR_MODE_8BIT);
176 
177         if (gm_i2c_write(I2C_ADDR, 0x02, (((sec/10)&0x7)<<4)|((sec%10)&0xF)) < 0)
178         {
179             goto pcf8563_set_fail;
180         }
181 
182         if (gm_i2c_write(I2C_ADDR, 0x03, (((min/10)&0x7)<<4)|((min%10)&0xF)) < 0)
183         {
184             goto pcf8563_set_fail;
185         }
186 
187         if (gm_i2c_write(I2C_ADDR, 0x04, (((hour/10)&0x3)<<4)|((hour%10)&0xF)) < 0)
188         {
189             goto pcf8563_set_fail;
190         }
191 
192         if (gm_i2c_write(I2C_ADDR, 0x05, (((mday/10)&0x3)<<4)|((mday%10)&0xF)) < 0)
193         {
194             goto pcf8563_set_fail;
195         }
196 
197         if (gm_i2c_write(I2C_ADDR, 0x07, (((mon/10)&0x1)<<4)|((mon%10)&0xF)) < 0)
198         {
199             goto pcf8563_set_fail;
200         }
201 
202         if (gm_i2c_write(I2C_ADDR, 0x08, ((((year-2000)/10)&0xF)<<4)|(((year-2000)%10)&0xF)) < 0)
203         {
204             goto pcf8563_set_fail;
205         }
206     }
207      printf("\n\n\ngm_pcf8563_settime22:%04d/%02d/%02d, %02d:%02d:%02d\n\n\n\n", year, mon, mday, hour, min, sec);   
208     return SUCCESS;
209 
210 pcf8563_set_fail:
211     printf("PCF8563 Set Fail\n");
212     return FAIL;
213 }