98 lines
5.3 KiB
Plaintext
98 lines
5.3 KiB
Plaintext
/*!
|
|
@file: BIOZ-2Wire.h
|
|
@author: Neo Xu
|
|
@brief: 4-wire BIOZ measurement header file.
|
|
-----------------------------------------------------------------------------
|
|
|
|
Copyright (c) 2017-2019 Analog Devices, Inc. All Rights Reserved.
|
|
|
|
This software is proprietary to Analog Devices, Inc. and its licensors.
|
|
By using this software you agree to the terms of the associated
|
|
Analog Devices Software License Agreement.
|
|
|
|
*****************************************************************************/
|
|
|
|
#ifndef _BODYCOMPOSITION_H_
|
|
#define _BODYCOMPOSITION_H_
|
|
#include "ad5940.h"
|
|
#include "stdio.h"
|
|
#include "string.h"
|
|
#include "math.h"
|
|
|
|
#define MAXSWEEP_POINTS 100 /* Need to know how much buffer is needed to save RTIA calibration result */
|
|
|
|
/*
|
|
Note: this example will use SEQID_0 as measurement sequence, and use SEQID_1 as init sequence.
|
|
SEQID_3 is used for calibration.
|
|
*/
|
|
|
|
typedef struct
|
|
{
|
|
/* Common configurations for all kinds of Application. */
|
|
BoolFlag bParaChanged; /* Indicate to generate sequence again. It's auto cleared by AppBIOZInit */
|
|
uint32_t SeqStartAddr; /* Initialaztion sequence start address in SRAM of AD5940 */
|
|
uint32_t MaxSeqLen; /* Limit the maximum sequence. */
|
|
uint32_t SeqStartAddrCal; /* Measurement sequence start address in SRAM of AD5940 */
|
|
uint32_t MaxSeqLenCal;
|
|
/* Application related parameters */
|
|
//BoolFlag bBioElecBoard; /* The code is same for BioElec board and AD5941Sens1 board. No changes are needed */
|
|
BoolFlag ReDoRtiaCal; /* Set this flag to bTRUE when there is need to do calibration. */
|
|
float SysClkFreq; /* The real frequency of system clock */
|
|
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 */
|
|
float AdcClkFreq; /* The real frequency of ADC clock */
|
|
uint32_t FifoThresh; /* FIFO threshold. Should be N*2 */
|
|
float BIOZODR; /* in Hz. ODR decides the period of WakeupTimer who will trigger sequencer periodically. DFT number and sample frequency decides the maxim ODR. */
|
|
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. */
|
|
float SinFreq; /* Frequency of excitation signal */
|
|
float RcalVal; /* Rcal value in Ohm */
|
|
uint32_t PwrMod; /* Control Chip power mode(LP/HP) */
|
|
float DacVoltPP; /* Final excitation voltage is DacVoltPP*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 */
|
|
uint32_t ExcitBufGain; /* Select from EXCITBUFGAIN_2, EXCITBUFGAIN_0P25 */
|
|
uint32_t HsDacGain; /* Select from HSDACGAIN_1, HSDACGAIN_0P2 */
|
|
uint32_t HsDacUpdateRate; /* DAC update rate is SystemCLoock/Divider. The available value is 7 to 255. Set to 7 for better performance */
|
|
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 */
|
|
uint8_t ADCSinc3Osr; /* SINC3 OSR selection. ADCSINC3OSR_2, ADCSINC3OSR_4 */
|
|
uint8_t ADCSinc2Osr; /* SINC2 OSR selection. ADCSINC2OSR_22...ADCSINC2OSR_1333 */
|
|
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 */
|
|
uint32_t CtiaSel; /* Select CTIA in pF unit from 0 to 31pF */
|
|
|
|
uint32_t DftNum; /* DFT number */
|
|
uint32_t DftSrc; /* DFT Source */
|
|
BoolFlag HanWinEn; /* Enable Hanning window */
|
|
|
|
/* Switch Configuration */
|
|
uint32_t DswitchSel;
|
|
uint32_t PswitchSel;
|
|
uint32_t NswitchSel;
|
|
uint32_t TswitchSel;
|
|
|
|
/* Sweep Function Control */
|
|
SoftSweepCfg_Type SweepCfg;
|
|
/* Private variables for internal usage */
|
|
float SweepCurrFreq;
|
|
float SweepNextFreq;
|
|
fImpCar_Type RtiaCurrValue; /* Calibrated Rtia value at current frequency */
|
|
fImpCar_Type RtiaCalTable[MAXSWEEP_POINTS]; /* Calibrated Rtia Value table */
|
|
float FreqofData; /* The frequency of latest data sampled */
|
|
BoolFlag BIOZInited; /* If the program run firstly, generated sequence commands */
|
|
SEQInfo_Type InitSeqInfo;
|
|
SEQInfo_Type MeasureSeqInfo;
|
|
BoolFlag StopRequired; /* After FIFO is ready, stop the measurement sequence */
|
|
uint32_t FifoDataCount; /* Count how many times impedance have been measured */
|
|
/* End */
|
|
}AppBIOZCfg_Type;
|
|
|
|
#define BIOZCTRL_START 0
|
|
#define BIOZCTRL_STOPNOW 1
|
|
#define BIOZCTRL_STOPSYNC 2
|
|
#define BIOZCTRL_GETFREQ 3 /* Get Current frequency of returned data from ISR */
|
|
#define BIOZCTRL_SHUTDOWN 4 /* Note: shutdown here means turn off everything and put AFE to hibernate mode. The word 'SHUT DOWN' is only used here. */
|
|
|
|
AD5940Err AppBIOZGetCfg(void *pCfg);
|
|
AD5940Err AppBIOZInit(uint32_t *pBuffer, uint32_t BufferSize);
|
|
AD5940Err AppBIOZISR(void *pBuff, uint32_t *pCount);
|
|
AD5940Err AppBIOZCtrl(int32_t BcmCtrl, void *pPara);
|
|
AD5940Err AppBIOZCheckFreq(float freq);
|
|
|
|
#endif
|