ADC initialization with multiplexer, Patch SM

Troubleshooting and Support
1

Hey guys!
I’m currently trying to run the following:
8 default CV_IN pins (C2,3,4,5,6,7,8,9);
2 Multiplexers (CD4051) on pins A2, A3;
2 pots on pins D8, D9 (just as voltage dividers from 3.3v).

Separately they work as intended. But when I try to initialize them together, either some pins or default CV_INs do not work.

Could you please explain how to properly initialize them? Am I doing something wrong?

Here’s relevant parts of my code:

int main(void)
{
    patch.Init();

    patch.adc.Stop();

    AdcChannelConfig adc_cfg[12];

    adc_cfg[0].InitMux(patch.GetPin(DaisyPatchSM::PinBank::A, 3), 8, 
    patch.GetPin(DaisyPatchSM::PinBank::D, 4), 
    patch.GetPin(DaisyPatchSM::PinBank::D, 5), 
    patch.GetPin(DaisyPatchSM::PinBank::D, 6));

    adc_cfg[1].InitMux(patch.GetPin(DaisyPatchSM::PinBank::A, 2), 8, 
    patch.GetPin(DaisyPatchSM::PinBank::D, 1), 
    patch.GetPin(DaisyPatchSM::PinBank::D, 2), 
    patch.GetPin(DaisyPatchSM::PinBank::D, 3));

    for(int i = 0; i < 10; i++)
    {
        adc_cfg[i+2].InitSingle(adc_pins[i]);
    }

    patch.adc.Init(adc_cfg, 12);

    patch.adc.Start();

    ...
}

adc_pins are copypasted from DaisyPatchSM class.

constexpr Pin PIN_ADC_CTRL_1  = DaisyPatchSM::C5;
constexpr Pin PIN_ADC_CTRL_2  = DaisyPatchSM::C4;
constexpr Pin PIN_ADC_CTRL_3  = DaisyPatchSM::C3;
constexpr Pin PIN_ADC_CTRL_4  = DaisyPatchSM::C2;
constexpr Pin PIN_ADC_CTRL_5  = DaisyPatchSM::C6;
constexpr Pin PIN_ADC_CTRL_6  = DaisyPatchSM::C7;
constexpr Pin PIN_ADC_CTRL_7  = DaisyPatchSM::C8;
constexpr Pin PIN_ADC_CTRL_8  = DaisyPatchSM::C9;
constexpr Pin PIN_ADC_CTRL_11 = DaisyPatchSM::D9;
constexpr Pin PIN_ADC_CTRL_12 = DaisyPatchSM::D8;

constexpr Pin adc_pins[] = {
    PIN_ADC_CTRL_1,
    PIN_ADC_CTRL_2,
    PIN_ADC_CTRL_3,
    PIN_ADC_CTRL_4,
    PIN_ADC_CTRL_8,
    PIN_ADC_CTRL_7,
    PIN_ADC_CTRL_5,
    PIN_ADC_CTRL_6, // skipped A2/A3 pins that are used for multiplexers
    PIN_ADC_CTRL_11,
    PIN_ADC_CTRL_12,
};

When I drop PIN_ADC_CTRL_11, PIN_ADC_CTRL_12 from initialization, both multiplexers and CV_INs work. When I add them back, CV_INs do not work (from logs, reads as ~5v) and pins D8, D9 work.

I would be glad to any suggestions I could try. Really don’t want to drop D8/D9 pins since I already designed/soldered some stuff for them :frowning: