Re: [CAD_CAM_EDM_DRO] Re: UCMI Interface

Art Fenerty wrote:

>> Has anyone considered using the Onboard APIC on P6 series
>> processors and above to implement such a scheme. Most computers over
>> 500Mhz are P6 series and by what I'm reading the APIC on the CPU
>> should be able to do almost as well. I'm thinking of doing some APIC
>> experiments on this to see just what the Asyncronous 4-axis pulse
>> rate would be, say on a 800Mhz machine and was wondering if I'd be
>> reinventing the wheel and if anyone has played with APIC programming
>> at all. An Application written for the APIC with the same API would
>> make it trivial to have a low-end app for the PC without the UCMI and
>> a Hi-end version with UCMI with no additional work, just relinking.
>> Sounds interesting.
>

The problem with this idea (as I understand it) is the the APIC is
disabled on most single processor motherboards.

See:

http://www.linuxdevices.com/articles/AT6298863382.html

Is this not true? If the APIC is universally available, it will be a
great way to go for a software only timing mechanism.

Matt
(I'm still alive, just busy lately...)