Hi Richard,
Good to hear you are making progress with your evaluation of the ADuCM350!
- It definitely sounds like you have outgrown the EKSP! This software was designed to enable quick and easy impedance measurements for initial testing/evaluation of the ADuCM350. For anything more advanced, it is best to move to firmware. There are a number of examples in the SDK which perform AFE measurements. It sounds to me like the ImpedanceMeasurement_4WireBioIsolated and ImpedanceMeasurement_2Wire examples would be most relevant to your application. These examples do not perform continuous measurement, but should provide you with a good starting point to implement this. You should also consult some of the AFE and Systems Applications FAQs here on EZ (such as AFE DFT / Impedance /Bio-Isolated Impedance,AFE 4-Wire Isolated Example and AFE 4-Wire Isolated Connections) as well as application note AN-1302.
- What you did with the "Switch Mux Config Board" connections was correct for your application. This board is provided to enable the user to configure an example RC network which approximates their sensor/impedance load for development purposes. In your case, you already have the electrodes, therefore you don't need to model an impedance network. Ultimately, you don't need this board, but it is probably the easiest way to facilitate connecting your electrodes until you develop your own hardware. You may also want to consider using the 4Wire Bio Config 2 board, which should also have come with your kit. This was developed specifically for bio-impedance measurements and helps to conform with the IEC60601 standard. Please see the FAQs and AN mentioned in 1 above.
- This depends on how you want to return the results. The simplest way (which can be easily implemented using the SDK examples) is to use the UART, returning the results to the PC over USB using the USB-SWD/UART-EMUZ board (similarly to the EKSP software).
- We do not have such an application developed.
Kind Regards,
Eoghan.