3 Replies Latest reply on Jun 18, 2019 10:53 PM by VasanthR_91

    How to use External Vref on PSOC 63 for both SAR and CTDAC in PSOC creator?

    jola_401441

      Selected External Device Pin in the ADC component:

      Selected External Vref Source with CTDAC

      Selected Bandgap Value : External Pin (P9[7])

      The DAC appears to work fine, output range 0-1.250V with 1x gain.

       

      The SAR ADC doesn't read anything other than 0x7FF. It does work if I use the internal 1.2V reference instead.

       

      The pin P9[7] appears to be free, even though it should be assigned to External VREF.