I recently purchased and LMP93601EVM board and loaded the user interface software on my Windows 7 64 bit platform. I have attached the board to my existing product which is a NDIR based gas analyzer with a quad thermopile detector. The NDIR technology pulses the IR source on and off to achieve a psuedo sine wave type wave form at 2-4Hz. This product uses a DSP algorithm to process the signal and so needs at least 128 samples to get accurate amplitude data.
The problem I'm having is that I want to experiment with the continuous mode and look at the waveforms when sampling across multiple channels in continuous or one shot mode. I can see the waveform perfectly on the graph tab when only one channel is selected in the configuration. If I select more than one channel in the configuration then the graphical data does not look correct. I'm wondering if there is some sort of software defect that is causing this problem or if there is a problem in the actual device with multiple channels in continuous mode.
The configuration is
Any of these four configurations: One Shot, Ch 1 and Ch 2; One Shot Ch 1, Ch 2, Ch 3; Continuous, Ch 1 and Ch 2; Continuous Ch 1, Ch 2, Ch 3
Enable VCM, 265SPS
DGAIN 8, AGAIN 128
Standby Mode
No Alarm Mask
SDO Drive on Read Back
Normal (Soft Reset)
Start
Chip ID: 73
Rev ID: 2
