2007/1/16, abdulrazaqali :
>
> Folks,
>
> I want to test the ADC please advice, i'm using codewarrior
> with PE.
>
> Hardware Settings:
> Connecting GND of frequency generator to EVM kit's GND and positive is
> connected to ANA0. Is it ok in order to test the ADC? i think i don't
> need to take care of Vssa or Vref, as Vref is already high with 3.3V
> and Vssa is internally connected to Vss. To summarize, I'm just
> connecting Frequency Generator's GND to EVM kit's GND (common
ground)
> and positive of Frequency Generator is connected to ANA0.
>
You're ok. You only have to connect both GNDs and the ANA0 pin of your
EVM
kit with the positive of your frequency generator.
Software Settings:
> Frequency = 10 KHz Squarewave with 2V
peek-to-peek,
> AC Channels = 1
> Mode Select = Single Ended
> A/D resolution = 12 bits
> Conversion time = ? (what should be the possible time, as i want to do
> Continuous conversion.)
>
Conversion time must be higher than Sample_Frequ*number_bits_resolution.
Thanks for your input,
> ali
>
>
>