Diff: LDC1000.cpp

Revision:

16:07d0e43c2d12

Parent:

15:8a09279a05eb

Child:

17:a5cf2b4bec13

--- a/LDC1000.cpp	Tue Aug 18 17:46:35 2015 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,125 +0,0 @@
-/**
-* @file LDC1000.h
-* @brief this C++ file wcontains all required
-* functions to interface with Texas
-* Instruments' LDC1000.
-*
-* @author Victor Sluiter
-*
-* @date 2015-04-01
-*/
-
-#include "LDC1000.h"
-
-LDC1000::LDC1000(PinName mosi, PinName miso, PinName sck, PinName cs, float capacitor, float f_external, PinName clock_out) : _spiport(mosi,miso,sck,NC), _cs_pin(cs), _clock(clock_out,1)
-{
-    cap = capacitor;
-    _spiport.format(8,3);
-    _spiport.frequency(1E6);
-    _cs_pin.write(1);
-    wait_us(100);
-    mode(LDC_MODE_STANDBY);
-    setFrequency(f_external);
-    wait(0.1);
-    wait_us(10);
-
-    setWatchdog(5000);
-    setResponseTime(LDC_RESPONSE_6144);
-    setOutputPower(LDC_AMPLITUDE_4V);
-
-    writeSPIregister(0x05,0x00);   // clock config >> we get 0x00 if this line is disabled and the cable is reconnected 
-    writeSPIregister(0x0C,0x01);   // Register 0x0C enables a function that can improve L measurements while disabling RP measurements 
-
-    mode(LDC_MODE_ACTIVE);
-}
-
-void LDC1000::setOutputPower(LDC_AMPLITUDE amplitude)
-{
-    uint8_t buffer;
-    _amplitude  = amplitude;
-    readSPI(&buffer, 0x04);
-    buffer &= 0xE7; //clear amplitude bits
-    buffer |= (amplitude<<3) & 0x18;
-    writeSPI(&buffer,0x04);
-}
-
-void LDC1000::setWatchdog(float frequency)
-{
-    uint8_t buffer;
-    buffer = 68.94*log(frequency/2500);
-    writeSPI(&buffer,0x03);
-}
-
-void LDC1000::setResponseTime(LDC_RESPONSE responsetime)
-{
-    uint8_t buffer;
-    _responsetime = responsetime;
-    readSPI(&buffer, 0x04);
-    buffer &= 0xF8; //clear responsetime bits
-    buffer |= responsetime & 0x07;
-    //writeSPIregister(0x04,buffer);
-    writeSPI(&buffer,0x04);
-}
-
-void LDC1000::setFrequency(float frequency)
-{
-    _frequency = frequency;
-    _clock.period(1.0/frequency);
-    _clock.pulsewidth(0.5/frequency);
-}
-
-float LDC1000::getInductance()
-{
-    uint16_t resp[] = {0,0,192, 384, 768, 1536, 3072, 6144};
-    _raw_l = readRawCounts();
-    _fsensor = (_frequency/(_raw_l*3.0))*resp[(uint8_t)(_responsetime)];
-    return 1./(cap*pow(2*PI*_fsensor,2));
-};
-
-
-uint32_t LDC1000::readRawCounts(void)
-{
-    uint8_t val[5];
-    readSPI(val,0x21,5);
-    uint32_t combinedbytes = (val[4]<<16)| (val[3]<<8) | val[2];  // combine the content of the 3 bytes from registers 23, 24 and 25 
-    return combinedbytes;
-}
-
-void LDC1000::readSPI(uint8_t *data, uint8_t address, uint8_t num_bytes)
-{
-    _cs_pin.write(0);
-    _spiport.write(address | 0x80); //read flag 
-    for(int i=0; i < num_bytes ; i++)
-    {
-        data[i] = _spiport.write(0xFF);
-    }
-    _cs_pin.write(1);
-}
-
-void LDC1000::writeSPI(uint8_t *data, uint8_t address, uint8_t num_bytes)
-{
-    _cs_pin.write(0);
-    _spiport.write(address); 
-    for(int i=0; i < num_bytes ; i++)
-    {
-        _spiport.write(data[i]);
-    }
-    _cs_pin.write(1);
-}
-
-
-// EXTRA test: Get&print values of all variables to verify (to calculate the induction)
-// The data will be printed on the screen using RealTerm: baud 9600.
-// Begin ***********************************************************
-    float LDC1000::get_raw_l()          {_raw_l = readRawCounts(); 
-                                        return _raw_l;};        
-    float LDC1000::get_fsensor()        {
-    uint16_t resp[] = {0, 0, 192, 384, 768, 1536, 3072, 6144};
-    _raw_l = readRawCounts();
-    _fsensor = (_frequency/(_raw_l*3.0))*resp[(uint8_t)(_responsetime)];                
-        return _fsensor;};        
-    
-    float LDC1000::get_frequency()      {return _frequency;};    
-    float LDC1000::get_responsetime()   {return _responsetime;};    
-    float LDC1000::get_cap()            {return cap;};
-// END ***********************************************************
\ No newline at end of file