That sounds impressive. I am looking forward to seeing it. On 2013/01/02 10:03 PM, Kip Shaffer wrote: > Absolutely! I just finished wiring up the real (non-prototype) interface > card yesterday. As soon as I make sure everything is working, I'll post > the wiring diagram and the HAL module. It appears that even the > high-latency (1ms) shift register lines are fast enough to directly read > the tachometer signal from my cooling fans (120 Hz)! > > > > > On Wed, Jan 2, 2013 at 2:11 PM, Marius Liebenberg > <mar...@mastercut.co.za>wrote: > >> Kip, >> Would you be willing to share your module. I am in need of a similar >> solution. >> Marius >> >> On 2012/12/28 02:54 PM, Kip Shaffer wrote: >>> Gene, >>> Not sure if you would be interested in the approach I'm using, but it >>> may help you or others who are in a similar predicament. >>> >>> You can use shift registers to add as many additional lines as you want. >>> For example, you can take 3 output lines on your parallel port, and >> turn >>> them into 8, 16, 24 or more output lines. Shift registers come in two >>> varieties: Serial-In Parallel-Out, which you would use to create more >>> output lines, and Parallel-In Serial-Out which you can use to create more >>> input lines. >>> >>> I wrote a HAL module to implement my setup, which uses 4 pins on the >>> parallel port to create 16 output and 16 input lines. I use these lines >>> for higher-latency signals, since it takes about 1 ms to shift all the >> bits >>> in and out. >>> >>> There is a good article explaining it here: >>> >>> >> http://robots.freehostia.com/Software/ShiftRegister/ShiftRegisterBody.html >>> -Kip >>> >>> >>> On Fri, Dec 28, 2012 at 5:15 AM, MC Cason <farmerboy1...@yahoo.com> >> wrote: >>>> On 12/28/2012 03:10 AM, Steve Blackmore wrote: >>>>> On Fri, 28 Dec 2012 02:34:37 -0500, you wrote: >>>>> >>>>> >>>>>> Mainly the 3 weeks to a month it takes from mainland china for >> delivery. >>>>>> But since I've decided to sacrifice the one pin I was saving for a >> home >>>>>> pin, that is the path I'll take. >>>>> That seems a long time? I've had several packages from China most have >>>>> taken 4 or 5 days, none longer than 10 days from Shanghai to my >> doorstep >>>>> in UK. They are usually in the country within 48 hours, the delays are >>>>> always here! >>>>> >>>>> Steve Blackmore >>>>> -- >>>> Here in the Southern part of the US, It regularly takes between 10 >>>> days, and 2 weeks for items to arrive from Shenzhen, or Hong Kong, >>>> Longer, from Shanghai, or Guandong. The latest set of boards I had >>>> made, were air flighted out of Hong Kong, on the 19th. According to the >>>> tracking number, they haven't landed yet... >>>> >>>> -- >>>> MC Cason - Assocaite Developer - Eagle3D >>>> Created by: Matthias Weißer >>>> >>>> >>>> >>>> >>>> >> ------------------------------------------------------------------------------ >>>> Master HTML5, CSS3, ASP.NET, MVC, AJAX, Knockout.js, Web API and >>>> much more. Get web development skills now with LearnDevNow - >>>> 350+ hours of step-by-step video tutorials by Microsoft MVPs and >> experts. >>>> SALE $99.99 this month only -- learn more at: >>>> http://p.sf.net/sfu/learnmore_122812 >>>> _______________________________________________ >>>> Emc-users mailing list >>>> Emc-users@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/emc-users >>>> >> -- >> Regards / Groete >> >> Marius D. Liebenberg >> MasterCut cc >> Cel: +27 82 698 3251 >> Tel: +27 12 743 6064 >> Fax: +27 86 551 8029 >> Skype: marius_d.liebenberg >> Skype Me^(TM)! <skype:marius_d.liebenberg?call> >> Get Skype <http://www.skype.com/go/download> and call me for free. >> >> >> >> >> --- >> avast! Antivirus: Outbound message clean. >> Virus Database (VPS): 130102-0, 2013/01/02 >> Tested on: 2013/01/02 09:11:40 PM >> avast! - copyright (c) 1988-2013 AVAST Software. >> http://www.avast.com >> >> >> >> ------------------------------------------------------------------------------ >> Master Java SE, Java EE, Eclipse, Spring, Hibernate, JavaScript, jQuery >> and much more. Keep your Java skills current with LearnJavaNow - >> 200+ hours of step-by-step video tutorials by Java experts. >> SALE $49.99 this month only -- learn more at: >> http://p.sf.net/sfu/learnmore_122612 >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >>
-- Regards / Groete Marius D. Liebenberg MasterCut cc Cel: +27 82 698 3251 Tel: +27 12 743 6064 Fax: +27 86 551 8029 Skype: marius_d.liebenberg Skype Me^(TM)! <skype:marius_d.liebenberg?call> Get Skype <http://www.skype.com/go/download> and call me for free. --- avast! Antivirus: Outbound message clean. Virus Database (VPS): 130102-1, 2013/01/02 Tested on: 2013/01/03 07:18:09 AM avast! - copyright (c) 1988-2013 AVAST Software. http://www.avast.com ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
