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About accuracy of TWR-KM34Z50's 24bit SDADC

Question asked by Rome Huang on Dec 24, 2014
Latest reply on Jan 13, 2015 by Rome Huang

Hi I'm evaluating TWR-KM34Z50's 24bit SDADC, I wired both EXT_SD_ADP0 and EXT_SD_ADM0 to VSSA, and run afe_test, then I got values between 0x6df8 and 0x824a, it seems 13 bit shifting. Anything wrong in my configuration or is it normal?

 

Best Regards,

Rome.

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