It supports DS1216E/F and DS1315 in ROM mode and it can be located in the cartridge port or any of the TOS ROM sockets.
A1 is assumed to be the data input, and /WE should be either A2 or A3
Tested on a 520STM with a "Forget Me Clock 2" cartridge under TOS2.06 and EmuTOS1.0. Your milage may vary, this is beta so use at your own risk, etc etc
To use it just put DALLAS1.PRG in the AUTO folder. If it's running you should have an 'RTCx' cookie with the address where the chip was found.
It's designed to work seamlessly with TOS so you'll set time and date using XControl as usual.
Using any other clock driver, Y2K type fixes or 3rd party Dallas applications at the same time may cause interference - especially those that still rely on the IKBD and work by adjusting the year back and forth.
It comes with sourcecode and is made as an extendible system with a common core, and separate hardware drivers.
The idea was that it should be easy to create additional drivers for other RTCs without having to worry about all the TOS boilerplate and just focus on the hardware specifics.
At the moment it's just that one Dallas driver though, and a dummy template to use when making a driver for some other RTC hardware.
Big thanks to @troed of SYNC fame for code example on how to talk to the DS1216!
