This will not cause any issues with the functionality. There is a mux before ADC to select between the internal and external reference. Since we are using only the internal reference, one input to the AMux will be left unconnected. Hence, it shows that analog signal is connected to only one terminal.
Functionality wise are you facing any issues with the results ? Will you able to share your project?
Thank you, Vasanth.
I can't test right now as I don't have the hardware yet, I just wanted to make sure that the routing I used actually compiled well.
The sequencing SAR ADC component performs a application test to make sure there is only ONE analog connection from the assigned analog pin to the input of the mux. That's why it is reporting "Net_xxxx". Annoying isn't it? I ran into the exact same problem when I try to put more internal component inputs on the same analog line.
There must be a reason the Cypress engineer is making that a criteria. I'd like to know. (Anyone from Cypress willing to respond?)
My fix is to use an ADC component (SAR or Delta-sigma) and place and route my own AMux component in front of it. This is not as 'simplified' as the sequencing ADC but allows me more control and, of course, I need to establish my own code to synchronize the mux to the ADC conversions needed.
Thank you, Len