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I am quite new to Altium Designer and I am having error troubles such as floating nets, pins, and what not (see below). My PCB is going to be a thermistor expansion board, in which I am just multiplexing a bunch of thermistors into ADC's and sending that to my MCU.

Since this is a very repetitive design I thought using a hierarchical design method with sheet symbols on a top sheet would be a good way to go. Please excuse the mess as I am just trying to solve the errors, and I will clean the schematic up once it's able to compile. Please give any and all advice on best practice or general layout, or what have you.

Top Level Schematic Here is my top sheet schematic, its a 50 pin connector sheet symbol connecting to my MUX sheet symbol via a bus. I am currently not using the ADC_OUT_(2&3) but will be once I can get passed these other errors

My 50 pin connector

Connector Error :"nets with only one Pin" Even though this bus connects to my mux sheet (and ends on a mux pin) it still gives me this error.

Section of Mux Sheet It's intended that 3 16 channel muxs will be connected to the bus via net labels

Mux Sheet Errors Net labels that connect to the bus via bus entry points, also have a corresponding net label on the mux, yet I still get a floating pin and net label with only one pin error.

Ideally an answer that shows what I did right, what I did right and could be changed based on industry or known best practise, and what I did wrong and how it can be rectified would be fantastic! That way this thread can be looked at by another Altium newcomer and clearly see what has been laid out.

Thanks everyone!

user10231745
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1 Answers1

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Solution:

The way I was trying to access my bus on my MUX sheet, I think Altium was seeing my problem as there were to many net labels of the same name per wire, so there was always one or two floating.

The way I solved it: Bus Solution

On the sheet that you are going to use the bus explicitly, you just need to post what I did above somewhere on the respective schematic page, then use the corresponding net labels within the bus on the pins or wires or what have you.

Hope this helps others! Cheers

user10231745
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