Get current pin voltage?

[lpcware]

Content originally posted in LPCWare by arturn on Mon May 20 04:38:01 MST 2013

Hi!

I'm reading values from a ADC controller using below formula :

<code>adv_value = adv_value / MAX_VALUE * Voltage</code>

I'm using 5v voltage I would like to use exactly voltage value to improve my read,  not an 5 constant aproximation.
How I can get exactly voltatge in board ?
Thnks!

[lpcware]

Content originally posted in LPCWare by mc on Tue May 21 20:31:38 MST 2013

Hi arturn,

Could you please explain your question in detail? Are you using evaluation board?

What is the maximum voltage you want to measure using ADC?

Thanks,

NXP Support