In article <404BE003.6080901@mindspring.com>, Robert Steinmetz wrote: > Sheldon Simms wrote: > > > On Sun, 07 Mar 2004 15:08:59 -0800, Rich J. wrote: > > > > > >>I see it mentioned that the Apple II lacks a driver for the Super > >>Serial Card for CC65. Has anyone done work on this? > >> > >>All of the SSC programming information is available online and easy to > >>find. The SSC isn't hard to do I/O with, but I think CC65 would need > >>some sort of interrupt driver. Not that big of a deal either, as long > >>as there is an interrupt source in your Apple II. Does the SSC > >>generate interrupts? I've never seen any information saying it did. > > > > > > The 6551 ACIA on the SSC will generate transmit and receive > > interrupts if you tell it to. Or are you talking about a clock > > interrupt? > > > > > >>If a ssc driver for cc65 is so important to Contiki OS porting, why > >>hasn't anyone written a driver? > > > > > > Maybe because no one is all that interested in Contiki. > > I've been very interested but don't have the skills to > do it or the time to learn. If anyone does, there's some 6502/6551 assembly source for interrupt driven open, close, get and put routines at http://www.wright.edu/~john.matthews/ssc.html The routines are interfaced to a Kyan Pascal main, but only get and put would have to change to interface to a different stack-machine. John ---- jmatthews at wright dot edu www dot wright dot edu/~john.matthews/