122 lines
7.2 KiB
C
122 lines
7.2 KiB
C
/*!
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@file: ImpSeqs.h
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@author: $Author: nxu2 $
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@brief: 4-wire BIA measurement header file.
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@version: $Revision: 766 $
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@date: $Date: 2017-08-21 14:09:35 +0100 (Mon, 21 Aug 2017) $
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-----------------------------------------------------------------------------
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Copyright (c) 2012-2017 Analog Devices, Inc.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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- Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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- Modified versions of the software must be conspicuously marked as such.
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- This software is licensed solely and exclusively for use with processors
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manufacTRUEd by or for Analog Devices, Inc.
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- This software may not be combined or merged with other code in any manner
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that would cause the software to become subject to terms and conditions
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which differ from those listed here.
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- Neither the name of Analog Devices, Inc. nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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- The use of this software may or may not infringe the patent rights of one
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or more patent holders. This license does not release you from the
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requirement that you obtain separate licenses from these patent holders
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to use this software.
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THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES, INC. AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-
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INFRINGEMENT, TITLE, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL ANALOG DEVICES, INC. OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, PUNITIVE OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, DAMAGES ARISING OUT OF
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CLAIMS OF INTELLECTUAL PROPERTY RIGHTS INFRINGEMENT; PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#ifndef _BODYCOMPOSITIONJOSEMETHOD_H_
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#define _BODYCOMPOSITIONJOSEMETHOD_H_
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#include "ad5940.h"
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#include "stdio.h"
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#include "string.h"
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#include "math.h"
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#define MAXSWEEP_POINTS 100 /* Need to know how much buffer is needed to save RTIA calibration result */
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/*
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Note: this example will use SEQID_0 as measurment sequence, and use SEQID_1 as init sequence.
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SEQID_3 is used for calibration.
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*/
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typedef struct
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{
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/* Common configurations for all kinds of Application. */
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BoolFlag bParaChanged; /* Indicate to generate sequence again. It's auto cleared by AppBIAInit */
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uint32_t SeqStartAddr; /* Initialaztion sequence start address in SRAM of AD5940 */
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uint32_t MaxSeqLen; /* Limit the maximum sequence. */
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uint32_t SeqStartAddrCal; /* Measurment sequence start address in SRAM of AD5940 */
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uint32_t MaxSeqLenCal;
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/* Application related parameters */
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//BoolFlag bBioElecBoard; /* The code is same for BioElec board and AD5941Sens1 board. No changes are needed */
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BoolFlag ReDoRtiaCal; /* Set this flag to bTRUE when there is need to do calibration. */
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float SysClkFreq; /* The real frequency of system clock */
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float WuptClkFreq; /* The clock frequency of Wakeup Timer in Hz. Typically it's 32kHz. Leave it here in case we calibrate clock in software method */
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float AdcClkFreq; /* The real frequency of ADC clock */
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uint32_t FifoThresh; /* FIFO threshold. Should be N*4 */
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float BiaODR; /* in Hz. ODR decides the period of WakeupTimer who will trigger sequencer periodically. DFT number and sample frequency decides the maxim ODR. */
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int32_t NumOfData; /* By default it's '-1'. If you want the engine stops after get NumofData, then set the value here. Otherwise, set it to '-1' which means never stop. */
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float SinFreq; /* Frequency of excitation signal */
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float RcalVal; /* Rcal value in Ohm */
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uint32_t PwrMod; /* Control Chip power mode(LP/HP) */
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float DacVoltPP; /* Final excitation voltage is DAC_VOLTpp*DAC_PGA*EXCIT_GAIN, DAC_PGA= 1 or 0.2, EXCIT_GAIN=2 or 0.25. DAC output voltage in mV peak to peak. Maximum value is 800mVpp. Peak to peak voltage */
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uint32_t ExcitBufGain; /* Select from EXCITBUFGAIN_2, EXCITBUFGAIN_0P25 */
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uint32_t HsDacGain; /* Select from HSDACGAIN_1, HSDACGAIN_0P2 */
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uint32_t HsDacUpdateRate; /* DAC update rate is SystemCLoock/Divider. The available value is 7 to 255. Set to 7 for better perfomance */
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uint32_t ADCPgaGain; /* PGA Gain select from GNPGA_1, GNPGA_1_5, GNPGA_2, GNPGA_4, GNPGA_9 !!! We must ensure signal is in range of +-1.5V which is limited by ADC input stage */
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uint8_t ADCSinc3Osr; /* SINC3 OSR selection. ADCSINC3OSR_2, ADCSINC3OSR_4 */
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uint8_t ADCSinc2Osr; /* SINC2 OSR selection. ADCSINC2OSR_22...ADCSINC2OSR_1333 */
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uint32_t HstiaRtiaSel; /* Use internal RTIA, select from RTIA_INT_200, RTIA_INT_1K, RTIA_INT_5K, RTIA_INT_10K, RTIA_INT_20K, RTIA_INT_40K, RTIA_INT_80K, RTIA_INT_160K */
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uint32_t CtiaSel; /* Select CTIA in pF unit from 0 to 31pF */
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uint32_t DftNum; /* DFT number */
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uint32_t DftSrc; /* DFT Source */
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BoolFlag HanWinEn; /* Enable Hanning window */
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/* Sweep Function Control */
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SoftSweepCfg_Type SweepCfg;
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/* Private variables for internal usage */
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float SweepCurrFreq;
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float SweepNextFreq;
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float RtiaCurrValue[2]; /* Calibrated Rtia value of current frequency */
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float RtiaCalTable[MAXSWEEP_POINTS][2]; /* Calibrated Rtia Value table */
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float FreqofData; /* The frequency of latest data sampled */
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BoolFlag BIAInited; /* If the program run firstly, generated sequence commands */
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SEQInfo_Type InitSeqInfo;
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SEQInfo_Type MeasureSeqInfo;
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BoolFlag StopRequired; /* After FIFO is ready, stop the measurment sequence */
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uint32_t FifoDataCount; /* Count how many times impedance have been measured */
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/* End */
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}AppBIACfg_Type;
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#define BIACTRL_START 0
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#define BIACTRL_STOPNOW 1
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#define BIACTRL_STOPSYNC 2
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#define BIACTRL_GETFREQ 3 /* Get Current frequency of returned data from ISR */
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#define BIACTRL_SHUTDOWN 4 /* Note: shutdown here means turn off everything and put AFE to hibernate mode. The word 'SHUT DOWN' is only used here. */
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AD5940Err AppBIAGetCfg(void *pCfg);
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AD5940Err AppBIAInit(uint32_t *pBuffer, uint32_t BufferSize);
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AD5940Err AppBIAISR(void *pBuff, uint32_t *pCount);
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AD5940Err AppBIACtrl(int32_t BcmCtrl, void *pPara);
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#endif
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