I'm working on a datalogging program using Atmel's 8051 range and a DS1305
real time clock. I chose the SPI clock
because im also using external SPI flash memory. Ive tested it and it seems
to be working fine.

By the way im a hobbyist and this is
really a trivial piece of code, my first
real project. All you need is a good
simulator like Pinnacle52 and a decent
8051 book and you should have it sussed.

If not, email me, tell me what routines you need and ill email them to you.

But I warn you, one thing ive found out
as i learn embedded systems is that writing your own code is sometimes easier than deciphering someone elses!
Having said that, i read some old code
of mine and i couldnt believe i wrote it!!