Re: [Emc-developers] proposal for capability of external interrupts to trigger HAL threads

2013-09-04 Thread Jon Elson
Gene Heskett wrote: I did take a gander at its source about 6 months ago, but came to the conclusion that I wasn't grokking the overall picture well enough to even dot an i or cross a t in it. :( 20 years ago I would have barged right in and played that famous bull in a china shop. Then I

Re: [Emc-developers] proposal for capability of external interrupts to trigger HAL threads

2013-09-03 Thread Gene Heskett
On Tuesday 03 September 2013 04:32:26 Michael Haberler did opine: Am 03.09.2013 um 05:41 schrieb Gene Heskett ghesk...@wdtv.com: On Monday 02 September 2013 23:18:36 Jon Elson did opine: I'm not sure theis is the right method to bring this up, but... I have had some discussions with

Re: [Emc-developers] proposal for capability of external interrupts to trigger HAL threads

2013-09-03 Thread Jon Elson
Gene Heskett wrote: As is, it has to be rate and/or lowpass filtered before feeding into the PID before the rest of the PID 'adjustments' even begin to work as expected else the PID seems overwhelmed by the noise. The software encoder counter component has a timestamp feature to provide

Re: [Emc-developers] proposal for capability of external interrupts to trigger HAL threads

2013-09-03 Thread Jon Elson
Gene Heskett wrote: While 10khz sounds a little slow for us stepper users, the fact that the samples are frozen in a very accurate timebase would appear to be a worthwhile endeavor to me. with say a 30 to 50 khz clock, the base thread could be clocked entirely in hardware. That can't help

Re: [Emc-developers] proposal for capability of external interrupts to trigger HAL threads

2013-09-03 Thread Gene Heskett
On Tuesday 03 September 2013 22:03:44 Jon Elson did opine: Gene Heskett wrote: While 10khz sounds a little slow for us stepper users, the fact that the samples are frozen in a very accurate timebase would appear to be a worthwhile endeavor to me. with say a 30 to 50 khz clock, the base

Re: [Emc-developers] proposal for capability of external interrupts to trigger HAL threads

2013-09-03 Thread Gene Heskett
On Tuesday 03 September 2013 22:11:46 Jon Elson did opine: Gene Heskett wrote: As is, it has to be rate and/or lowpass filtered before feeding into the PID before the rest of the PID 'adjustments' even begin to work as expected else the PID seems overwhelmed by the noise. The software

Re: [Emc-developers] proposal for capability of external interrupts to trigger HAL threads

2013-09-02 Thread Gene Heskett
On Monday 02 September 2013 23:18:36 Jon Elson did opine: I'm not sure theis is the right method to bring this up, but... I have had some discussions with Michael Haberler about having the capability for making HAL threads triggerable via an external interrupt. Apparently, there was a

Re: [Emc-developers] proposal for capability of external interrupts to trigger HAL threads

2013-09-02 Thread Michael Haberler
Am 03.09.2013 um 05:41 schrieb Gene Heskett ghesk...@wdtv.com: On Monday 02 September 2013 23:18:36 Jon Elson did opine: I'm not sure theis is the right method to bring this up, but... I have had some discussions with Michael Haberler about having the capability for making HAL threads