TRIS setting for the DS1302

[BobK]

Hi Dennis,

You could do that or you could use the DS1337 that has 2 alarms built-in.
The DS1337 uses I2C communications and can be configured in several
different ways. Several years ago, Tony Galea presented an entire program
using the DS1337. Recently, JEllis posted his trials setting up this clock.
It doesn't have a battery charger like the DS1302 but it does have two separate alarm outputs. If you only need one alarm and need a 1hz pulse, the DS1337 will fill your needs. Check out the data sheet. I use alot of them and have a backup battery circuit for them.

HTH,

BobK

[Byte_Butcher]

Or you could just use a 18F46J50 that has a RTCC built in.
*None* of that serial communications junk that way, eh?

I still continue to use the DS1302 for a lot of projects because I LIKE the "keep alive battery" and charger...