About accuracy of TWR-KM34Z50's 24bit SDADC

[romehuang]

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.

[apanecatl]

Hi Rome, can you share your code to check it out?