5 Replies Latest reply on Feb 20, 2017 1:12 AM by user_1377889

    Creator error: Signal "AH_0deg_w" is expected to connect to only one GPIO analog pin but instead it connects to "\SnH_AH_0deg:SC\".

    senthilnathan.lingasamy

      I'm not sure about the meaning of the error message: 

         

      Signal "AH_0deg_w" is expected to connect to only one GPIO analog pin but instead it connects to "\SnH_AH_0deg:SC\". Please fix the connection.... in my design. Does it mean the ADC SAR Seq's muxer can be connected only to analog GPIO pins? 

         

      I didn't read about it in the datasheet. In this case, why the restriction? 

         

      Ans:

         

      In PSoC 5LP, the SAR ADC uses analog hardware mux internally to switch between channels. Analog hardware mux is controlled by the switches near GPIO, which are controlled by DSI lines.

         

      Hence, the input to the analog hardware mux can be only from an analog GPIO and ADC SAR Seq's muxer can be connected only to analog GPIO pins.