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00016 #include "config.h"
00017 #include "usb_key.h"
00018
00019 #ifdef USE_ADC
00020 #include "lib_mcu\adc\adc_drv.h"
00021
00022
00023
00024
00025
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00029
00036 code U16 temperature_code[]={ 0x3B4,0x3B0,0x3AB,0x3A6,0x3A0,0x39A,0x394,0x38E,0x388,0x381,0x37A,0x373,
00037 0x36B,0x363,0x35B,0x353,0x34A,0x341,0x338,0x32F,0x325,0x31B,0x311,0x307,
00038 0x2FC,0x2F1,0x2E6,0x2DB,0x2D0,0x2C4,0x2B8,0x2AC,0x2A0,0x294,0x288,0x27C,
00039 0x26F,0x263,0x256,0x24A,0x23D,0x231,0x225,0x218,0x20C,0x200,0x1F3,0x1E7,
00040 0x1DB,0x1CF,0x1C4,0x1B8,0x1AC,0x1A1,0x196,0x18B,0x180,0x176,0x16B,0x161,
00041 0x157,0x14D,0x144,0x13A,0x131,0x128,0x11F,0x117,0x10F,0x106,0xFE,0xF7,
00042 0xEF,0xE8,0xE1,0xDA,0xD3,0xCD,0xC7,0xC0,0xBA,0xB5,0xAF,0xAA,0xA4,0x9F,
00043 0x9A,0x96,0x91,0x8C,0x88,0x84,0x80,0x7C,0x78,0x74,0x71,0x6D,0x6A,0x67,
00044 0x64,0x61,0x5E,0x5B,0x58,0x55,0x53,0x50,0x4E,0x4C,0x49,0x47,0x45,0x43,
00045 0x41,0x3F,0x3D,0x3C,0x3A,0x38};
00046
00047
00048
00049
00050 U16 Get_adc_temp_val(void)
00051 {
00052 Start_conv_channel(ADC_TEMP_CH);
00053 while (!Is_adc_conv_finished());
00054 return (U16)(ADCL+((U16)(ADCH<<8)));
00055 }
00056
00057 S16 Read_temperature(void)
00058 {
00059 #ifndef AVRGCC
00060 U16 adc_code;
00061 S8 index=0;
00062 adc_code=Get_adc_temp_val();
00063 if(adc_code>temperature_code[0])
00064 {
00065 return (S16)(-20);
00066 }
00067 else
00068 {
00069 while(temperature_code[index++]>adc_code);
00070 return (S16)(index-1-20);
00071 }
00072 #else
00073 U16 adc_code;
00074 S8 index=0;
00075 adc_code=Get_adc_temp_val();
00076 if(adc_code>pgm_read_word_near(&temperature_code))
00077 {
00078 return (S16)(-20);
00079 }
00080 else
00081 {
00082 while(pgm_read_word_near(&temperature_code[index++])>adc_code);
00083 return (S16)(index-1-20);
00084 }
00085
00086 #endif
00087 }
00088
00089
00090 #endif // USE_ADC