MAX 10 Modular ADC core problem with reserved pins

Altera_Forum · ‎12-11-2017

I want to use only TSD (temperature sensor diode) to monitor chip (10M50SAE144I7G) temperature. When I instantiate 'Altera modular ADC core' in my project with all channels disabled except TSD, fitter says that dedicated input pins ~ALTERA_ADC1INx~ is assigned.

Error (176310): Can't place multiple pins assigned to pin location Pin_8 (IOPAD_X0_Y36_N14)
    Info (176311): Pin E100_RX_DV is assigned to pin location Pin_8 (IOPAD_X0_Y36_N14)
    Info (176311): Pin ~ALTERA_ADC1IN3~ is assigned to pin location Pin_8 (IOPAD_X0_Y36_N14)

Is there way to disable pin assignment for unused ADC input/channels?

From datasheet:

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You can use the dual function pins in an ADC block as general purpose I/O (GPIO) pins if you do not use the ADC.

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So, if i use ADC block only for TSD... I can not use these pins as GPIO?

Altera_Forum · ‎12-12-2017

Hi,

Try loading sample projects.

https://cloud.altera.com/devstore/platform/15.1.0/standard/nios-ii-on-die-temperature-sensor-design-example/

--- Quote Start ---

From datasheet:

So, if i use ADC block only for TSD... I can not use these pins as GPIO?

--- Quote End ---

Yes,even TSD is part of ADC.

Best Regards,

Anand Raj Shankar

(This message was posted on behalf of Intel Corporation)

Altera_Forum · ‎12-12-2017

Thanx, Anand Raj Shankar!

Is there a chance that this behavior will be changed in the future?