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

  		




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unsigned int16 a0;


  		




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unsigned int16 b1;


  		




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unsigned int16 b2;


  		




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unsigned int16 c12;


  		




  
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signed int16 a0;


  		




  
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signed int16 b1;


  		




  
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signed int16 b2;


  		




  
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signed int16 c12;


  		




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int MPL_init()


  		




  ......




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float MPL_get_pressure()


  		




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{   


  		




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int8 LSB_data, MSB_data;


  		




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int16 ADC_pressure, ADC_temperature;


  		




  
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unsigned int8 LSB_data, MSB_data;


  		




  
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unsigned int16 ADC_pressure, ADC_temperature;


  		




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


  		




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   spi_write(0x24);


  		




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   spi_write(0x00);


  		




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   output_high(CSN_SPI);


  		




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   delay_ms(3);


  		




  
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   delay_ms(10);


  		




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   output_low(CSN_SPI);     // get MSB for Pressure


  		




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   spi_write(0x80);


  		




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   LSB_data = spi_read(0x00);


  		




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


  		




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   MSB_data = spi_read(0x00);


  		




  
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   output_high(CSN_SPI);


  		




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


  		




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


  		




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   output_low(CSN_SPI);


  		




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   spi_write(0x84);


  		




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   LSB_data = spi_read(0x00);


  		




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


  		




  ......




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   spi_read(0x00);


  		




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   output_high(CSN_SPI);


  		




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


  		




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


  		




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


  		




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


  		




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


  		




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}


  		




  ......




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   while(true)


  		




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   {


  		




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


  		




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      delay_ms(100);


  		




  
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//   MPL_init();


  		




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


  		




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


  		




  
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MPL_get_pressure();


  		




  
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      delay_ms(500);


  		




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   }


  		




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}


  		










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