Hi

I have developed a software based RTC within 89C2051 chip. This is an 24hours format clock, displaying time on LCD panel.

Now I want to implement TIMER function with this RTC. That means user will enter Time by a numeric keypad, and at any given time a particular pin lets say OP1 will go high or low.

I have around 5 outputs, and plan to offer 'n' numbers of time-setup only limited to internal RAM. which is almost 64bytes available out of 128bytes.

The keypad is already in place. Any body would like to contribute by giving CODE example or any suggestion???

Thanks,

Rauf / Microlink