I'm using TMDX5515EZDSP. I am able to configure GPAIN1 Channel 3 to perform a proper ADC conversion using API functions. When I only change ADC settings to perform the same on the Channel 2 nothing happens. I mean with the Channel 3 being configured, the output values in the file(I'am using "stdio" fprintf function) are coordinated, but they are not(i.e. the values are about 0), when I'am using Channel 2 as an input. Neither work Channels 1 or Channel 0 on GPAIN0. The only thing that works is an example 2.4 from SPRUFP1 document. Please assist me on the issue.