http://yro.slashdot.org/story/14/08/07/1852259/parallax-completes-open-hardw...
they're all coming out the woodwork now!
That's a microcontroller. They're misusing the term CPU.
On Thu, Aug 7, 2014 at 3:12 PM, Luke Kenneth Casson Leighton lkcl@lkcl.net wrote:
http://yro.slashdot.org/story/14/08/07/1852259/parallax-completes-open-hardw...
they're all coming out the woodwork now!
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On Thu, Aug 7, 2014 at 8:19 PM, Christopher Havel laserhawk64@gmail.com wrote:
That's a microcontroller. They're misusing the term CPU.
yeahh but it's cool, it has 8 parallel cores! love the design - no interrupts, you just dedicate one of the cores to processing I/O, in idle. latency is absolute zero. awesome.
Yeeeeeeaaaaaaaaaaaaaah no interrupts. Not very useful as a CPU then! Plus it's weird. If there were a need for a parallel-processing microcontroller then I'd see the point, but there isn't.
On Thu, Aug 7, 2014 at 5:44 PM, Luke Kenneth Casson Leighton lkcl@lkcl.net wrote:
On Thu, Aug 7, 2014 at 8:19 PM, Christopher Havel laserhawk64@gmail.com wrote:
That's a microcontroller. They're misusing the term CPU.
yeahh but it's cool, it has 8 parallel cores! love the design - no interrupts, you just dedicate one of the cores to processing I/O, in idle. latency is absolute zero. awesome.
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On Thu, Aug 7, 2014 at 11:12 PM, Christopher Havel laserhawk64@gmail.com wrote:
Yeeeeeeaaaaaaaaaaaaaah no interrupts.
no interrupt HANDLERs. read the wiki page. they have a far more superior way of dealing with interrupts: instead of "oh let's save the context, jump the instructions and oh wait yeah we have to restore it afterwards" resulting in unpredictable latency they dedicate an ENTIRE CORE to handling the event, which waits idle and INSTANTLY responds to the GPIO event.
so it is a far, far superior architecture for dealing with real-time processing because it is quite literally zero latency.
l.
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