代码:

1. byte BM1383AGLV::init(void)
   
2. {
   
3.   byte rc;
   
4.   unsigned char reg;
   
5. 
   
6.   rc = read(BM1383AGLV_ID, ®, sizeof(reg));
   
7.   if (rc != 0) {
   
8.     Serial.println(F("Can't access BM1383AGLV"));
   
9.     return (rc);
   
10.   }
    
11.   Serial.print(F("BM1383AGLV ID Register Value = 0x"));
    
12.   Serial.println(reg, HEX);
    
13. 
    
14.   if (reg != BM1383AGLV_ID_VAL) {
    
15.     Serial.println(F("Can't find BM1383AGLV"));
    
16.     return (rc);
    
17.   }
    
18. 
    
19.   reg = BM1383AGLV_POWER_DOWN_VAL;
    
20.   rc = write(BM1383AGLV_POWER_DOWN, ®, sizeof(reg));
    
21.   if (rc != 0) {
    
22.     Serial.println(F("Can't write BM1383AGLV POWER_DOWN register"));
    
23.     return (rc);
    
24.   }
    
25. 
    
26.   delay(WAIT_BETWEEN_POWER_DOWN_AND_RESET);
    
27. 
    
28.   reg = BM1383AGLV_RESET_VAL;
    
29.   rc = write(BM1383AGLV_RESET, ®, sizeof(reg));
    
30.   if (rc != 0) {
    
31.     Serial.println(F("Can't write BM1383AGLV RESET register"));
    
32.     return (rc);
    
33.   }
    
34. 
    
35.   reg = BM1383AGLV_MODE_CONTROL_VAL;
    
36.   rc = write(BM1383AGLV_MODE_CONTROL, ®, sizeof(reg));
    
37.   if (rc != 0) {
    
38.     Serial.println(F("Can't write BM1383AGLV MODE_CONTROL register"));
    
39.     return (rc);
    
40.   }
    
41. 
    
42.   delay(WAIT_TMT_MAX);
    
43. 
    
44.   return (rc);
    
45. }

代码:

1. byte BM1383AGLV::get_rawval(unsigned char *data)
   
2. {
   
3.   byte rc;
   
4. 
   
5.   rc = read(BM1383AGLV_PRESSURE_MSB, data, GET_BYTE_PRESS_TEMP);
   
6.   if (rc != 0) {
   
7.     Serial.println(F("Can't get BM1383AGLV PRESS and TEMP value"));
   
8.   }
   
9. 
   
10.   return (rc);
    
11. }
    
12. 
    
13. byte BM1383AGLV::get_val(float *press, float *temp)
    
14. {
    
15.   byte rc;
    
16.   unsigned char val[GET_BYTE_PRESS_TEMP];
    
17.   unsigned long rawpress;
    
18.   short rawtemp;
    
19. 
    
20.   rc = get_rawval(val);
    
21.   if (rc != 0) {
    
22.     return (rc);
    
23.   }
    
24. 
    
25.   rawpress = (((unsigned long)val[0] << 16) | ((unsigned long)val[1] << 8) | (val[2]&0xFC)) >> 2;
    
26. 
    
27.   if (rawpress == 0) {
    
28.     return (-1);
    
29.   }
    
30. 
    
31.   *press = (float)rawpress / HPA_PER_COUNT;
    
32. 
    
33.   rawtemp = ((short)val[3] << 8) | val[4];
    
34. 
    
35.   if (rawtemp == 0) {
    
36.     return (-1);
    
37.   }
    
38. 
    
39.   *temp = (float)rawtemp / DEGREES_CELSIUS_PER_COUNT;
    
40. 
    
41.   return (rc);
    
42. }