I just wanted to test the AD conversion function of this board, and I just directly use the example code from TI (example_ADC_SOC).
This program is simple: just receive analog signal from ADCINA2 and 3, and log it from result registor.
When I run it, the conversion is going and the ADC.reg.result0 and 1 are updating, but the vaule is unreasonable or randon.
I have try different input including: 2V DC, or even 0, or both ADCINA and ADCLO connect together or both conect to ground.......
But the result is updating between some randon value like:0x080,0x040,0x061,0x0A0......
even nothing is connect to the pin, the 2 result registors still have some updating value like that.....
I am new to TI dsp, can anyone give some advice about that? Thank you..