S32k314 ADC reading info

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S32k314 ADC reading info

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vasanth-sr
Contributor II

Hi team,

In our design, pin no 93 -ADC1_MA[0] (ADC1 -> mux_output0 -> PTC27) used to read voltage.

I configured this pin, this pin default direction is output not configurable as a input.

How can i configure and read ADC value from this ADC1_MA[0]?

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PetrS
NXP TechSupport
NXP TechSupport

Hi,

ADCx_MA signals are output decode signals, cannot be used as ADC input.
The ADC provides three external decode signals which it uses to select one channel out of eight in the external analog multiplexers. There can be a maximum of four such multiplexers used to connect the 32 external channels. The ADC automatically sets the decode signals to control these external analog multiplexers, based on the current external channel selected for conversion.

BR, Petr

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PetrS
NXP TechSupport
NXP TechSupport

Hi,

ADCx_MA signals are output decode signals, cannot be used as ADC input.
The ADC provides three external decode signals which it uses to select one channel out of eight in the external analog multiplexers. There can be a maximum of four such multiplexers used to connect the 32 external channels. The ADC automatically sets the decode signals to control these external analog multiplexers, based on the current external channel selected for conversion.

BR, Petr

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Agis02
Contributor I
Hi @PetrS,

Could you please mention the code to get and print temperature data for S32K314 microcontroller. Actually, very less data is available for this type of configuration.
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EthanXu
Contributor I

So it means that all the pin connected to ADCx_MA cannot read the voltage value,right?

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vasanth-sr
Contributor II

Ok, Thank you 

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vasanth-sr
Contributor II
Any one please help me to bringup the adc in my s32k314 platform
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