I2S MCKFREQ options

[Sverre]

In the manual for the nRF5284 there is a listing for some divider settings for the MCKFREQ.  The size of the register and the values to set indicates that there are a much vider range of values possible. Is this correct? And if so, is there a formula for calculating the register values base on the required divider?

[Andreas]

Hi,

 

I am being told in theory this might be possible, at least for some/most inbetween values. The reason why it is not documented supposedly because the jitter is worse for these values, and they are left out of the documentation.

We do not have a formula or similar for calculating the register value based on the required divider. You will have to determine it through trial and error.

 

Best regards,

Andreas