Other Parts Discussed in Thread: FDC2214
Hi,
Before starting measurement with the FDC2214EVM, I have measured the amplitude of oscillation using a oscilloscope connecting between IN0A and IN0B. Initially I was getting an amplitude 0.6 V - 0.7 V (approx). While the current below the " Detect I drive Init with auto-amplitude correction"- button the current value was showing "NaN". Then I have increased the code number in the "sensor initialization current "-table to increase the Idrive in channel 0 upto 1160 micro Amp. Even after that when I pressed the button " Detect I drive Init with auto-amplitude correction"- the current value was"NaN". I shall be grateful if someone kindly tell tell what is the issue in the circuit and how can I rectify it ? ( The schematic with connection is attached. In this setup I am trying to implement the logic that as the sensor PCB moves across a surface with considerable change in material permittivity, it will show a change in capacitance at the output.). I am looking forward for your valuable suggestions.
with warm regards,
Shantanu
