Tool/software: Code Composer Studio
I am using OPT3101 dev board but wired up to external most MCU over I2C channel of the board. Currently I am running OPT3101 without any calibration and cross talk correction. I am getting good stable readings with larger subframes but for some reason the closest range I am getting is no less than 3 meters.
Question 1: Is the issue of not able to read range less than 3 meters related to not using board calibration values?
Question 2: Since board calibration value is stored in on board MSP430 host at factory calibration, is there a way to pull those values out of onboard MSP430 host ?
Question3: if OPT3101 dev board is use with external MCU with out calibration and correction what should be the expected accuracy and range?
Question 4: I am using configuration generated by OPT3101 Configuration Tool and want to use OPT3101 in Monoshot mode. But activation monoshot via monoshot_bit in a register is not working as per documentation in section 7.3.1.2. The monoshot_bit do not reset at the end of the cycle. I found a post with similar issue. (e2e.ti.com/.../756598 Can you please confirm?
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#include "OPT3101device.h"
/* OPT3101 device initialization Sequence Header file written by OPT3101 Calibration tool - Version 0.9.1
By: Pritesh Patel
On: 2020-05-27 13:19:28
Configuration Settings:
{
"genDeviceI2CMasterConnection": 1,
"autoHDRMode": true,
"monoshotMode": true,
"TX0HCurrent": 0,
"monoshotModeNFramesPerShot": 1,
"genDeviceI2CMasterTempSensor": false,
"TXDCCurrent": 0,
"superHDRMode": false,
"LEDOrder": 0,
"timeStamp": 2020-05-27 13:19:22,
"genDeviceAmbientSupport": 0,
"freqComp": false,
"monoshotModePowerupDelay": 153,
"user": pritesh patel,
"autoHDRRatio": 4.0,
"multiLEDMode": true,
"genDeviceEEPROMConnection": false,
"toolVersion": 0.9.1,
"crc": 1905640516,
"autoHDRHThreshold": 25500,
"genDeviceAvgFrameCount": 8,
"monoshotModeDeepSleep": false,
}
*/
void OPT3101::device::initialize(void){
// List of registers to initialize OPT3101 device after power-up
this->reg.tg_ovl_window_start = 7000; // //Overload flab observation window
this->reg.en_temp_conv = 1; // //Enables the internal
this->reg.clip_mode_fc = 1; // //Enables Clip mode for Frequency correction
this->reg.clip_mode_temp = 0; // //Disables Clip mode for Temp coff phase correction
this->reg.clip_mode_offset = 0; // //Disables Clip mode for phase offset correction
this->reg.iq_read_data_sel = 3; // //Enables 16 bit frame counter
this->reg.iamb_max_sel = 0; // //Sets maximum ambient support
this->reg.en_temp_corr = 1; // //Enables Temperature Correction
this->reg.gpio1_obuf_en=1; // //Enabled output buffer on GPIO1 pin
this->reg.gpo1_mux_sel=2; // //select dig_gpo_0 on gpio1
this->reg.dig_gpo_sel0 = 9; // //Select Data Ready on dig_gpo_0
this->reg.monoshot_mode=3; // //Sets monoshot mode
this->reg.dis_glb_pd_refsys=1; // Disables deep sleep PWRDN for blocks
//this->reg.dis_glb_pd_temp_sens=1;
//this->reg.dis_glb_pd_illum_drv=1
//this->reg.dis_glb_pd_afe=1;
//this->reg.dis_glb_pd_afe_dac=1;
this->reg.dis_glb_pd_amb_dac=1;
this->reg.dis_glb_pd_amb_adc=1;
this->reg.dis_glb_pd_osc=1;
//this->reg.dis_glb_pd_i2chost_osc=1;
this->reg.MONOSHOT_NUMFRAME=1; // //Sets number of frames to me measured per trigger
this->reg.powerup_delay=95; // //Power-up delay for every monoshot trigger
this->reg.num_sub_frames = 511; // //Sub frames count
this->reg.num_avg_sub_frames = 511; // //Average frames count
this->reg.xtalk_filt_time_const = 1; // //Crosstalk filter time constant
this->reg.tg_seq_int_start = 9850; // //Sequence Start
this->reg.tg_seq_int_end = 9858; // //Sequence End
this->reg.tg_seq_int_mask_start = 511; // //Same as AvgFrame Count
this->reg.tg_seq_int_mask_end = 511; // //Same as AvgFrame Count
this->reg.hdr_thr_high = 25500; // //High Threshold
this->reg.hdr_thr_low = 5875; // //Low Threshold
this->reg.en_adaptive_hdr = 1; // //Enables adaptive HDR feature
this->reg.illum_dac_h_tx0 = 31; // //High Current settings [173.6mA:5.6mA X 31]
this->reg.illum_scale_h_tx0 = 0; // //Illum scale for H [173.6mA:5.6mA X 31]
this->reg.illum_dac_l_tx0 = 31; // //High Current settings [043.4mA:1.4mA X 31]
this->reg.illum_scale_l_tx0 = 3; // //Illum scale for H [043.4mA:1.4mA X 31]
this->reg.tx_seq_reg = 0; // //Setting TX Switching order
this->reg.en_tx_switch = 1 ; // //Enable TX Switching order
this->reg.tg_en = 1; // //Enables Timing Generator
this->configurationFlags_xtalkFilterTau = 1; // //This is not a register but a settings flag for the SDK
this->configurationFlags_monoshotMode = true; // //This is not a register but a settings flag for the SDK
this->configurationFlags_xtalkSettlingOneTauInMilliSeconds = 256; // //This is not a register but a settings flag for the SDK
this->configurationFlags_xtalkSettlingOneTauInDataReadyCounts = 2; // //This is not a register but a settings flag for the SDK
this->configurationFlags_frameTimeInMilliSeconds = 128; // //This is not a register but a settings flag for the SDK
this->configurationFlags_avgFrameCountExponentOfTwo = 9; // //This is not a register but a settings flag for the SDK
}
OPT3101::device::device(void):
configurationFlags_isTXChannelActive{true,false,false},
configurationFlags_isRegisterSetActive{true,true} {}
OPT3101::calibrationC::calibrationC(void) : calibrationC(true) {
this->recordLength = 2; // //This configuration requires 2 crosstalk and other configuration record(s)
this->registerAddressListSize= 25; // //This configuration requires 25 registers [800] bits to be stored for calibration
this->EEPROM_connected = false; // //This configuration helps configure EEPROM
this->extTempSensor_connected= false; // //This configuration helps configure Ext temp sensor
this->registerAddressList[0] = 0x2f; // //Address for register(s) iphase_xtalk_reg_hdr0_tx0
this->registerAddressList[1] = 0x30; // //Address for register(s) qphase_xtalk_reg_hdr0_tx0
this->registerAddressList[2] = 0x38; // //Address for register(s) temp_coeff_xtalk_iphase_hdr0_tx0
this->registerAddressList[3] = 0x39; // //Address for register(s) temp_coeff_xtalk_qphase_hdr0_tx0
this->registerAddressList[4] = 0x42; // //Address for register(s) phase_offset_hdr0_tx0
this->registerAddressList[5] = 0x47; // //Address for register(s) tmain_calib_hdr0_tx0,tillum_calib_hdr0_tx0
this->registerAddressList[6] = 0x45; // //Address for register(s) temp_coeff_main_hdr0_tx0
this->registerAddressList[7] = 0x46; // //Address for register(s) temp_coeff_illum_hdr0_tx0
this->registerAddressList[8] = 0x31; // //Address for register(s) iphase_xtalk_reg_hdr1_tx0
this->registerAddressList[9] = 0x32; // //Address for register(s) qphase_xtalk_reg_hdr1_tx0
this->registerAddressList[10] = 0x5e; // //Address for register(s) temp_coeff_xtalk_iphase_hdr1_tx0
this->registerAddressList[11] = 0x60; // //Address for register(s) temp_coeff_xtalk_qphase_hdr1_tx0
this->registerAddressList[12] = 0x51; // //Address for register(s) phase_offset_hdr1_tx0,temp_coeff_illum_hdr1_tx0
this->registerAddressList[13] = 0x48; // //Address for register(s) tmain_calib_hdr1_tx0,tillum_calib_hdr1_tx0
this->registerAddressList[14] = 0x2d; // //Address for register(s) temp_coeff_main_hdr1_tx0
this->registerAddressList[15] = 0x52; // //Address for register(s) temp_coeff_illum_hdr1_tx0
this->registerAddressList[16] = 0x2e; // //Address for register(s) illum_xtalk_reg_scale
this->registerAddressList[17] = 0x3a; // //Address for register(s) scale_temp_coeff_xtalk
this->registerAddressList[18] = 0x71; // //Address for register(s) shift_illum_phase
this->registerAddressList[19] = 0x43; // //Address for register(s) en_phase_corr,en_temp_corr,scale_phase_temp_coeff
this->registerAddressList[20] = 0xb5; // //Address for register(s) scale_amb_phase_corr_coeff
this->registerAddressList[21] = 0x0c; // //Address for register(s) amb_phase_corr_pwl_coeff0
this->registerAddressList[22] = 0xb4; // //Address for register(s) amb_phase_corr_pwl_coeff1,amb_phase_corr_pwl_coeff2,amb_phase_corr_pwl_coeff3
this->registerAddressList[23] = 0xb8; // //Address for register(s) amb_phase_corr_pwl_x0,amb_phase_corr_pwl_x1
this->registerAddressList[24] = 0xb9; // //Address for register(s) amb_phase_corr_pwl_x2
}
