Original question:
ADC32RF45 EVM exhibits a notch in the spectrum at Fs/8 intervals
I have been through the documentation and forum posts on this issue. Forum thread 538392 contains a configuration file that suggests writing 0xAA to register 0x068 to freeze the correction. Forum thread 750250 mentions following table 118's recommendations of writing 0xC2 to this register.
Which recommendation is correct to freeze DC correction?
(Neither of these settings appear to follow Table 53)
Hi Shawn,
Please follow Table 28 for the correct register writes pertaining to freezing and disabling the offset correction. Writing 0xA2 to register 0x68 should do the trick.
One thing I might suggest that I find to be helpful is to download the EVM GUI (running in simulation mode). This allows you to view the register writes that take place for the button presses. A console can be opened if you click on the text on the bottom left corner which allows you to view many of the register writes.
Regards
