Hi ShahidAli,

* *I just wanted to look at your code so that i could learn how to keep the time printing process un-interrupted while reading the real time clock IC...* *

My clock does not have an analog mode, so the coding is easier. It has 2 frames; the top half for calendar and the bottom half for time. The first frame (time) starts displaying immediately after the index pulse. After the last digit of this frame (unit seconds) is displayed, you have enough time to read the RTC, before you need to start displaying the calendar.

The rotating transformer turned out to be easier to build than I thought; I used 100 turns for the primary (fixed), and 125 turns for the secondary (roatating) coil. The primary, 12 volts pulsed at 32 khz, around 55% duty cycle worked well for me.

Regards,

Anand