analog inputs

[frosturi]

I am using EIO nodes to read the 4 AI channels on the LM3S8962.  The ADC on the chip is 10-bit converter, correct?  The outputs are U32s.  Are these numbers the actual voltage values on the AI pins, or do these need to be scaled? 

[w0utje]

12 Analog-to-Digital Converter (ADC)

 An analog-to-digital converter (ADC) is a peripheral that converts a continuous analog voltage to a discrete digital number. The Stellaris® ADC module features 10-bit conversion resolution and supports four input channels, plus an internal temperature sensor.

 so yes 10 bit, and the output is the voltage.

0 = 0 volt

1024 (10 bit) = 3.3 V

[vansick]

You can also change between returning a scaler (double 0-3.3) or a raw value (U32 0-1024) by right clicking the EIO node and selecting properties.

[frosturi]

Thanks for the input