Don't want to use PRTCSS, but want the RTC. The PWCTRO and PWCTRIO confuse me.
I disable the PRTCSS, and tie PWRCNTON to '1' and PWRST to '0'. So the PRTCSS can work in external reset mode.
BUT. can I use the RTC now? There are two pins confuse me: VDD18_PRTCSS and VDD12_PRTCSS.
if I just want the RTC work with battery and main power, should the VDD18_PRTCSS leave opened? and connect a LDO to VDD12_PRTCSS with a BATTERY.?
IF VDD18_PRTCSS and VDD12_PRTCSS both must be connected, WELL , I prefer to replace it with a PCF8563T. and I have to say the RTC in DM365 is a flaw.
Anyone can give me a tip?
Here is my EXAMPLE:
PWRCNTON=1;
PWRST=0;
PWCTRO0~3 =OPEN;
PWCTRIO0~6 =OPEN;
VDD18_PRTCSS =OPEN;
VDD12_PRTCSS =1.2V LDO with CR2302(3V) BATTERY.
