I have an EVAL-ADAS1000-SDZ and EVAL-SDP-CB1Z evaluation kit.
I want a 12lead standard ECG. So Iconfigure the Default Setting in the ADAS1000 software.I set theDatarate to 2 kHz, the Data Format to Vector,CH Config to DifferentialInput, GAIN to x1.4, 2MspsLow NoiseandLow Pass Filter to 40Hz.
All baselines of all the leads appears instantlyto 0Vin thescopeofADAS1KStreamModuleECG(I put 0mVSpacing).
However, whenI run theADAS1KWrite toFilemodule,mybaselinevaluesarebetween1.26Vand1.31V(according tochannels).
I putmy ECG simulator ina modethat makes a+5mVRwaveand -5mV S wave (10mV peak to peak).
Lead I, Lead II, V1', V2', V3', V4', V5', V6':
Raw
Baseline: 8232272, 8545551, 8231152, 8239636, 8237645, 8233441, 8229983, 8232200
R wave: 8264695, 8578038, 8263561, 8272195, 8270078, 8266079, 8262682, 8264923
S wave: 8199902, 8513050, 8198755, 8207203, 8205281, 8200930, 8197432, 8199713
Voltages
Baseline: 1.2617562, 1.3097683, 1.2615817, 1,2628819, 1,2768579, 1,2762145, 1,275692, 1.2760247
R wave: 1,2667189, 1,3147471, 1,2665478, 1,2678676, 1,2818282, 1,2812225, 1,280704, 1,2810404
S wave: 1,2567906, 1,3047868, 1,256618, 1,2579077, 1,2718998, 1,2712331, 1,2707038, 1,2710413
Canyou explain how the baselines are set instantly to 0Vin thescopeofADAS1KStreamECGmodule?
Is thefirmware, embedded inthe evaluation kitEVAL-SDP-CB1Z, doing this,or is it thesoftwareADAS1000?
Myultimate goal is toconvert the 24bit data to16bit data and ensure a conversion rangeof10mV.