Hi,
I have a custom DM8147 design where I need the RTC to be running from the external 1/32768 clock input (and not the internally generated CLKDIVIDER) where we have a more precise oscillator connected. The RTC is drifting too much for our application.
How do I select the sys_32k_clkin_ck instead of the rtc_divider_ck?
I can see that it is done by writing a 1 to the SYSCLK18_CLKSRC register (offset 0x2F0) but I have no idea where to do this!!
Thanks,
Karsten