Aug 15, 2019
03:05 PM
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Aug 15, 2019
03:05 PM
I set up my position2go to capture 128 points at 300 kHz sampling frequency in Doppler mode. This means 1 chirp (not really a chirp because doppler) per frame.
The reported minimum frame time interval is 1.426 ms. The frame interval is set to match the minimum.
When I capture the frame data using the ComLib C Interface on my computer, I save timestamps with every received frame.
My timestamps are showing 2.5 to 3.5 ms gaps between frames.
I assume the reason this time doesn't match the frame time because my program has some overhead for writing data to file, but what does that mean for the Position2Go?
Am I skipping frames because I can't request as fast as the frame interval? Am I receiving frames that could potentially be several milliseconds old?
How exactly does the Position2Go to ComLib interface data buffer work?
The reported minimum frame time interval is 1.426 ms. The frame interval is set to match the minimum.
When I capture the frame data using the ComLib C Interface on my computer, I save timestamps with every received frame.
My timestamps are showing 2.5 to 3.5 ms gaps between frames.
I assume the reason this time doesn't match the frame time because my program has some overhead for writing data to file, but what does that mean for the Position2Go?
Am I skipping frames because I can't request as fast as the frame interval? Am I receiving frames that could potentially be several milliseconds old?
How exactly does the Position2Go to ComLib interface data buffer work?
2 Replies
Dec 08, 2019
11:09 AM
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Dec 08, 2019
11:09 AM
I could run the comlib but what does the adc output means ?
Dec 16, 2019
10:20 AM
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Dec 16, 2019
10:20 AM
ADC output is the data that is fetched by extract_raw_data.c. The ADC is the Analog to Digital Converter, since the mixed signal is measured analog. If you plot the raw data, you'll see a waveform as produced by the mixer on the board.