ADC wrong reading MPC5748G

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

ADC wrong reading MPC5748G

605 Views
medhedibasly
Contributor III

I get wrong reading of voltage from the ADC, for exemple the voltage on the adc pin is 0.720v and the the adc is getting 1.020v

2 Replies

450 Views
davidtosenovjan
NXP TechSupport
NXP TechSupport

Hi, do you have chosen reference voltage you expect (3.3V/5V) ?

pastedImage_1.png

449 Views
medhedibasly
Contributor III

Thank you for your reply, the issue was related to a hardware implementation on my board, the voltage divider was influenced by the some command signal related to  a transistor that changed the voltage divider gain value used on software.
i corrected the schematic and the problem disappeared.