F2812 ADC

parathodiyil meena

Prodigy 20 points

I am using F2812 ADC.I have used Pin 2 of P9 for analog input.I am using simulink IDE for CCS .

How do I see the digital output? What should be the value for 3.2V?

I have seen the values on ADC registers through gel files .

But I do not increasing values for incresing analog values?

What is the signal data type I sould set in the ADC support block?

over 13 years ago

0 Tom Guerin over 13 years ago

TI__Mastermind 38230 points

transfer to MSP forum

0 Devin Cottier over 13 years ago in reply to Tom Guerin

TI__Guru 60865 points

The F2812 is by default 0 to 3V range, so with 3.2V you should expect to see a digital code of 4095. You should also not expect to see any change in the output unless your voltage is within the 0 to 3V range.

You can find the formulas for the expected code based on the input voltage in the ADC user guide here: http://www.ti.com/lit/ug/spru060d/spru060d.pdf

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F2812 ADC