We are using the new EVAL-ADuCM355 to measure up to 16 sensors sequentially, in a 2-wire configuration. We want the highest possible output data rate from those sensors, so I am looking for suggestions on how to maximize this. So far, to maximize the output data rate, using the M355_Biased_EIS example in IAR, I have:
As far as I can see, the actions above should result in the following output rate:
Impedance Data Output Rate = 1600KSPS/2 = 800KSPS SINC3 output. 800KSPS/1024 = 781 SPS DFT output.
However, when recording timestamped measurements on RealTerm, I only get an output frequency of 83 Hz - quite far from the 781 Hz output from the DFT engine.
Do you have any suggestions for how to resolve this? We want to get as close as possible to the 781 Hz data rate.
I have attached the .c file I have modified from the M355_Biased_EIS example in order to get the 83 Hz output frequency here: 5050.M355_ECSns_EIS.zip