o: ActiveSupport::Cache::Entry :@compressedF: @value"S:"M:
main.c
18 18 
#define SPI_MODE_2  (SPI_H_TO_L)
19 19 
#define SPI_MODE_3  (SPI_H_TO_L | SPI_XMIT_L_TO_H)
20 20 

  		




  21
  
  
    
signed int16 a0;


  		




  22
  
  
    
signed int16 b1;


  		




  23
  
  
    
signed int16 b2;


  		




  24
  
  
    
signed int16 c12;


  		




  
  21
  
    
float a0;


  		




  
  22
  
    
float b1;


  		




  
  23
  
    
float b2;


  		




  
  24
  
    
float c12;


  		




  25
  25
  
    

  		




  26
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  27
  
  
    
int MPL_init()


  		




  
  27
  
    
void MPL_init()


  		




  28
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{   


  		




  29
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unsigned int8 a0_MSB, a0_LSB;


  		




  30
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unsigned int8 b1_MSB, b1_LSB;


  		




  ......




  56
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   spi_read(0x00);


  		




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   output_high(CSN_SPI);


  		




  58
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  59
  
  
    
   a0 = ((int16) a0_MSB << 8) + a0_LSB;


  		




  60
  
  
    
   b1 = ((int16) b1_MSB << 8) + b1_LSB;


  		




  61
  
  
    
   b2 = ((int16) b2_MSB << 8) + b2_LSB;


  		




  62
  
  
    
   c12 = ((int16) c12_MSB << 8) + c12_LSB;


  		




  
  59
  
    
   a0 = (a0_MSB << 5) + (a0_LSB >> 3) + (a0_LSB & 0x07)/8.0;


  		




  
  60
  
    
   b1 = ((((b1_MSB & 0x1F) * 0x100) + b1_LSB) / 8192.0) - 3;


  		




  
  61
  
    
   b2 = ((((b2_MSB - 0x80) << 8) + b2_LSB)/ 16384.0) - 2;


  		




  
  62
  
    
   c12 =(((c12_MSB * 0x100) + c12_LSB)/16777216.0);


  		




  63
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}


  		




  64
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  65
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float MPL_get_pressure()


  		




  66
  66
  
    
{   


  		




  67
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unsigned int8 LSB_data, MSB_data;


  		




  68
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unsigned int16 ADC_pressure, ADC_temperature;


  		




  
  69
  
    
float Pcomp;


  		




  69
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   output_low(CSN_SPI);        //Start temperature and pressure conversion


  		




  71
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   spi_write(0x24);


  		




  ......




  76
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  77
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   output_low(CSN_SPI);     // get MSB for Pressure


  		




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   spi_write(0x80);


  		




  
  80
  
    
   MSB_data = spi_read(0x00);


  		




  
  81
  
    
   spi_write(0x82);              // get LSB for Pressure


  		




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   LSB_data = spi_read(0x00);


  		




  80
  
  
    
   spi_write(0x82);              // get LSB for Pressure


  		




  81
  
  
    
   MSB_data = spi_read(0x00);


  		




  82
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   output_high(CSN_SPI);


  		




  83
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   printf("%lX  %lX\r\n", MSB_data, LSB_data);       


  		




  85
  
  
    
   ADC_pressure = ((int16) MSB_data << 8) + LSB_data;  // conversion of 8bit registers to 16bit variable 


  		




  
  86
  
    
   ADC_pressure = (((unsigned int16) MSB_data << 8) + LSB_data ) >> 6;  // conversion of 8bit registers to 16bit variable 


  		




  86
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   output_low(CSN_SPI);


  		




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   spi_write(0x84);


  		




  
  90
  
    
   MSB_data = spi_read(0x00);


  		




  
  91
  
    
   spi_write(0x86);              // get LSB for Temperature


  		




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   LSB_data = spi_read(0x00);


  		




  90
  
  
    
   spi_write(0x86);              // get LSB for Temperature


  		




  91
  
  
    
   MSB_data = spi_read(0x00);


  		




  92
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   spi_read(0x00);


  		




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   output_high(CSN_SPI);


  		




  94
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   printf("%lX  %lX\r\n", MSB_data, LSB_data);       


  		




  96
  
  
    
   ADC_temperature = ((int16) MSB_data << 8) + LSB_data;  // conversion of 8bit registers to 16bit variable 


  		




  
  97
  
    
   ADC_temperature = (((unsigned int16) MSB_data << 8) + LSB_data ) >> 6;  // conversion of 8bit registers to 16bit variable 


  		




  97
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  98
  
  
    
   printf("%lX  %lX\r\n", ADC_pressure, ADC_temperature);       


  		




  
  99
  
    
   printf("%lu  %lu \r\n", ADC_pressure, ADC_temperature);


  		




  
  100
  
    
   


  		




  
  101
  
    
   Pcomp = (a0 + (b1 + c12 * ADC_temperature) * ADC_pressure + b2 * ADC_temperature );


  		




  99
  102
  
    

  		




  100
  
  
    
   return (a0 + (b1 + c12 * ADC_temperature) * ADC_pressure + b2 * ADC_temperature );


  		




  
  103
  
    
   return (Pcomp * ((115.0 - 50.0)/1023.0) + 50.0);


  		




  101
  104
  
    
}


  		




  102
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  103
  106
  
    
void main()


  		




  ......




  112
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   while(true)


  		




  113
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   {


  		




  114
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//   MPL_init();


  		




  115
  
  
    
//      printf("%f \r\n", MPL_get_pressure());


  		




  
  118
  
    
      printf("%f \r\n", MPL_get_pressure());


  		




  116
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//      printf("%ld %ld %ld %ld \r\n",a0, b1, b2, c12);


  		




  117
  
  
    
MPL_get_pressure();


  		




  
  120
  
    
//MPL_get_pressure();


  		




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      delay_ms(500);


  		




  120
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   }


  		










:@created_atf1421976959.3710599¿r:@expires_in0