a real clock every 60seconds is equal to 1 minute (60seconds=1minute).but i want to design some thing same as clock but this clock is difference with real clock,in this clock every 30seconds equals to 1 minute (30seconds=1minute) . i only want to design in "proteuse program"(software), i dont want to make it (hardware).its better to use 7-segments,but its not important which controller is used.
i want when i play this program in proteuse,this clock work as digital clock.