Vladimir Ljaschko (25.02.2009 13:35, просмотров: 71) ответил yakuzaa на а можно посмотреть, пожалуйста?Г. не жалко :
int current_temperature[5];
//int current_temperature;
uchar temperature_channels=4;
#define REF_RESISTANCE 1000000LL
#define REF_VOLTAGE 0xfffffL
#define R_OFFSET -10
#define SENSORS2
#define MIN_T -1000 // minimum temperature to be calculated
#define MAX_T 8000 // maximum temperature
#define MAX_V (REF_VOLTAGE-REF_VOLTAGE/20) // maximum voltage to be processed
#ifdef SENSORS1
long __flash R_VALUE[] =
{
5529800, 5238000, 4963300, 4704700, 4461000, 4231500, 4015000, 3810900, 3618300, 3436600,
3265080, 3103040, 2950010, 2805420, 2668760, 2539550, 2417270, 2301600, 2192170, 2088520,
1990350, 1897360, 1809260, 1725740, 1646510, 1571400, 1500120, 1432460, 1368260, 1305280,
1249370, 1194330, 1142000, 1092270, 1044990, 1000000, 957200, 916470, 877700, 840770,
805600, 772090, 740170, 709720, 680700, 653010, 626610, 601420, 577370, 554410,
532490, 511560, 491550, 472430, 454160, 436690, 419990, 404010, 388720, 374110,
360100, 346690, 333860, 321560, 309790, 298510, 287690, 277320, 267390, 257850,
248710, 239940, 231520, 223470, 215670, 208230, 201080, 194210, 187600, 181260,
175160, 169300, 163663, 158241, 153028, 148012, 143187, 138537, 134068, 129764,
125617, 121623, 117775, 114071, 110499, 107058, 103740, 100540, 97456, 94481,
91611, 88841, 86170, 83593, 81103, 78699, 76379, 74138, 71974, 69882,
67863
};
#endif
#ifdef SENSORS2
long __flash R_VALUE[] =
{
2768000, 2621500, 2483600, 2353800, 2231700, 2116600, 2008200, 1906000, 1809700, 1718800, //-10
1633000, 1551800, 1475100, 1402700, 1334300, 1269600, 1208400, 1150600, 1095900, 1044100, // 0
995080, 948530, 904420, 862630, 823020, 785470, 749850, 716050, 683970, 653520, //10
624600, 597080, 570940, 546090, 522470, 500000, 478610, 458250, 438880, 420440, //20
402870, 386120, 370160, 354960, 340460, 326630, 313440, 300860, 288850, 277390, //30
266450, 255980, 245990, 236430, 227300, 218580, 210230, 202250, 194620, 187310, //40
180320, 173620, 167210, 161060, 155180, 149540, 144140, 138960, 133990, 129230, //50
124660, 120280, 116070, 112030, 108160, 104430, 100860, 97419, 94117, 90943, //60
87892, 84962, 82143, 79433, 76824, 74315, 71900, 69575, 67336, 65181, //70
63104 //80
};
#endif
// NTC M891-10k 5% B57-891-M103-J
long __flash EPCOS_VALUE[]=
{
/*-10.0 */ 5430800, //0
/*-5.0*/ 4150500, //1
/*0.0*/ 3201400, //2
/*5.0 */ 2501100, //3
/*10.0 */ 1969100, //4
/*15.0*/ 1561800, //5
/*20.0 */ 1247400, //6
/*25.0*/ 1000000, //7
/*30.0*/ 808000, //8
/*35.0*/ 656900, //9
/*40.0 */ 537200,
/*45.0*/ 442400,
/*50.0*/ 366100,
/*55.0*/ 303900,
/*60.0 */ 253600,
/*65.0*/ 212800,
/*70.0*/ 179400,
/*75.0*/ 151800,
/*80.0*/ 129000,
/*85.0*/ 110000
};
#define R_COUNT (sizeof (R_VALUE)/ sizeof(R_VALUE[0]))
#define EPCOS_COUNT (sizeof (EPCOS_VALUE)/ sizeof(EPCOS_VALUE[0]))
__flash char channel_codes[ACTIVE_ADC_CHANNELS] =
// A1 B2 Cooler Heater
//{ 0, 2, 1, 3};
//{ 2, 1, 3, 0};
{ 0, 1, 3, 2 };
int GetTemperature( char i )
{ long voltage;
long resistance;
char left = 0;
if (i<ACTIVE_ADC_CHANNELS)
{ voltage=external_adc_values[channel_codes[i]];
voltage&=0xfffff;
if (voltage>MAX_V) return MIN_T;
resistance = (voltage * REF_RESISTANCE / (REF_VOLTAGE - voltage));
// resistance=64000L;
if (resistance > R_VALUE[0]) return MIN_T;
if (resistance < R_VALUE[R_COUNT - 1]) return MAX_T;
for (left=0; left<R_COUNT-2; left++)
{ if (resistance>R_VALUE[left+1]) break; }
return 100 * (R_OFFSET + left) + 100 * (R_VALUE[left] - resistance) / (R_VALUE[left] - R_VALUE[left + 1]);
}
else
{ voltage=adc_values[0]+30;
voltage=voltage<<10;
resistance = (voltage * REF_RESISTANCE / (REF_VOLTAGE - voltage));
if (resistance > EPCOS_VALUE[0]) return 100 * (R_OFFSET - 1);
if (resistance < EPCOS_VALUE[EPCOS_COUNT - 1]) return 100 * (R_OFFSET + (int)EPCOS_COUNT - 1);
for (left=0; left<EPCOS_COUNT-2; left++)
{ if (resistance>EPCOS_VALUE[left+1]) break; }
return 100*R_OFFSET + 500* left + 500 * (EPCOS_VALUE[left] - resistance) / (EPCOS_VALUE[left] - EPCOS_VALUE[left + 1]);
}
;
}
void TemperatureCalculationService(char tci)
{ tc[tci]->ctemp=GetTemperature(tci);
}