-------------- Original message ---------------------- From: "Timothy Miller" <[EMAIL PROTECTED]> > On 8/1/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > > The way si87 did it was to provide a DIP switch for boot mode selection. > > 4 > bits on the DIP switch select stored modes for various common fixed frequency > monitors, with mode 0 being VGA and I think mode 4 being the A1097C. These > modes are loaded in flash at the factory, and custom modes can be loaded on > special order. Other switch bits set sync options, such as sync-on-green, > composite sync, etc. The DIP switch is accessible on the back panel, without > opening the case. > > We can provide jumpers or a DIP switch (jumpers may be cheaper, but I > don't know). The problem here is identifying a good list of fixed > modes that will satisfy everyone.
I don't think we can. That's why I suggested relegating the switches or jumpers to an external tool, and minimizing the on-board logic to the bare capability to interrogate an off-board tool for binary data. Then we don't have to guess at what finite number of modes might be required, we can just give the system integrator or end user access to the raw bits in the registers. Only the people who want the external tool pay for it, and then they get unhindered flexibility. _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
