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lab view/IIR filter

Started by rashmi venugopal February 28, 2011
in lab view i need to design a iir filter with displaying co efficients,,
but the thing is i have designed,, but i am not getting how to display the
coeffients only in integer format,, kindly help me...
On Feb 28, 6:51�pm, "rashmi venugopal"
<rashu32003@n_o_s_p_a_m.gmail.com> wrote:
> in lab view i need to design a iir filter with displaying co efficients,, > but the thing is i have designed,, but i am not getting how to display the > coeffients only in integer format,, kindly help me...
Too vague. Where's your vi.
>On Feb 28, 6:51=A0pm, "rashmi venugopal" ><rashu32003@n_o_s_p_a_m.gmail.com> wrote: >> in lab view i need to design a iir filter with displaying co
efficients,,
>> but the thing is i have designed,, but i am not getting how to display
th=
>e >> coeffients only in integer format,, kindly help me... > >Too vague. Where's your vi. > dear sir,, how to send vi,, its not getting pasted in this messge,, how
can i send u,, kindly send me u r email id,, iam in very urgency,, plz help me as soon as possible,,
On Tue, 01 Mar 2011 00:02:11 -0600, rashmi venugopal wrote:

>>On Feb 28, 6:51=A0pm, "rashmi venugopal" >><rashu32003@n_o_s_p_a_m.gmail.com> wrote: >>> in lab view i need to design a iir filter with displaying co > efficients,, >>> but the thing is i have designed,, but i am not getting how to display > th= >>e >>> coeffients only in integer format,, kindly help me... >> >>Too vague. Where's your vi. >> dear sir,, how to send vi,, its not getting pasted in this messge,, how > can i send u,, kindly send me u r email id,, iam in very urgency,, plz > help me as soon as possible,,
This is a text only newsgroup, so it doesn't accept binary attachments. Describe your VI in English, or post a picture of it on some free upload site (i.e. flikr), or if you have a web site that you can post to, post it there. If a vi is really text "under the hood" and its not too long, you could open the file in a text editor and paste it to the message. -- http://www.wescottdesign.com
On Sun, 27 Feb 2011 23:51:24 -0600, rashmi venugopal wrote:

> in lab view i need to design a iir filter with displaying co > efficients,, but the thing is i have designed,, but i am not getting how > to display the coeffients only in integer format,, kindly help me...
This is far more of a Labview thing than a DSP thing. Have you asked on a LabView support forum? If that isn't helping, have you experimented with making a VI that does nothing but display numbers? 99 times out of 100, axing things down to the one problem and attacking just that will bring you more joy than trying to fix the underpinnings of something complex. -- http://www.wescottdesign.com
>On Sun, 27 Feb 2011 23:51:24 -0600, rashmi venugopal wrote: > >> in lab view i need to design a iir filter with displaying co >> efficients,, but the thing is i have designed,, but i am not getting
how
>> to display the coeffients only in integer format,, kindly help me... > >This is far more of a Labview thing than a DSP thing. Have you asked on >a LabView support forum? > >If that isn't helping, have you experimented with making a VI that does >nothing but display numbers? 99 times out of 100, axing things down to >the one problem and attacking just that will bring you more joy than >trying to fix the underpinnings of something complex. > >-- >http://www.wescottdesign.com >i am really sorrry,, i did not had an intention to irritate u guys,,
i was little bit frustrated thats all,, dont feel bad,, i apolojize my mistake,, i am really sorry,,
On 03/01/2011 09:09 PM, rashmi venugopal wrote:
>> On Sun, 27 Feb 2011 23:51:24 -0600, rashmi venugopal wrote: >> >>> in lab view i need to design a iir filter with displaying co >>> efficients,, but the thing is i have designed,, but i am not getting > how >>> to display the coeffients only in integer format,, kindly help me... >> >> This is far more of a Labview thing than a DSP thing. Have you asked on >> a LabView support forum? >> >> If that isn't helping, have you experimented with making a VI that does >> nothing but display numbers? 99 times out of 100, axing things down to >> the one problem and attacking just that will bring you more joy than >> trying to fix the underpinnings of something complex. >> >> -- >> http://www.wescottdesign.com >> i am really sorrry,, i did not had an intention to irritate u guys,, > > i was little bit frustrated thats all,, dont feel bad,, i apolojize my > mistake,, i am really sorry,,
In general we do want to help -- it's just that sometimes it seems like newbies mistake newsgroups for corporate support sites. So -- did you try to just display floating point numbers? How'd it work out? -- Tim Wescott Wescott Design Services http://www.wescottdesign.com Do you need to implement control loops in software? "Applied Control Theory for Embedded Systems" was written for you. See details at http://www.wescottdesign.com/actfes/actfes.html
>On 03/01/2011 09:09 PM, rashmi venugopal wrote: >>> On Sun, 27 Feb 2011 23:51:24 -0600, rashmi venugopal wrote: >>> >>>> in lab view i need to design a iir filter with displaying co >>>> efficients,, but the thing is i have designed,, but i am not getting >> how >>>> to display the coeffients only in integer format,, kindly help me... >>> >>> This is far more of a Labview thing than a DSP thing. Have you asked
on
>>> a LabView support forum? >>> >>> If that isn't helping, have you experimented with making a VI that
does
>>> nothing but display numbers? 99 times out of 100, axing things down
to
>>> the one problem and attacking just that will bring you more joy than >>> trying to fix the underpinnings of something complex. >>> >>> -- >>> http://www.wescottdesign.com >>> i am really sorrry,, i did not had an intention to irritate u guys,, >> >> i was little bit frustrated thats all,, dont feel bad,, i apolojize my >> mistake,, i am really sorry,, > >In general we do want to help -- it's just that sometimes it seems like >newbies mistake newsgroups for corporate support sites. > >So -- did you try to just display floating point numbers? How'd it work >out? > >-- > >Tim Wescott >Wescott Design Services >http://www.wescottdesign.com > >Do you need to implement control loops in software? >"Applied Control Theory for Embedded Systems" was written for you. >See details at http://www.wescottdesign.com/actfes/actfes.html
actually floating point, decimal, are in buit by default it will display the coeffients in floating point,, but the thing is these coeeficeints i need to implement on microcontroller,, so MSP support only integers, i need to display coefficients in integer format only,, http://decibel.ni.com/content/blogs/rashu this is blog i wrote in NI.COM
>kindly check.,, it also contains the vi of iir filter
Once you know the coefficients, you can load them into your microprocessor in any convenient form, even hexadecimal or binary. You need to stop thinking in terms of magic incantations and actually understand the tools you work with.

Jerry
-- 
Engineering is the art of making what you want from things you can get.
On 03/02/2011 09:21 PM, rashmi venugopal wrote:
>> On 03/01/2011 09:09 PM, rashmi venugopal wrote: >>>> On Sun, 27 Feb 2011 23:51:24 -0600, rashmi venugopal wrote: >>>> >>>>> in lab view i need to design a iir filter with displaying co >>>>> efficients,, but the thing is i have designed,, but i am not getting >>> how >>>>> to display the coeffients only in integer format,, kindly help me... >>>> >>>> This is far more of a Labview thing than a DSP thing. Have you asked > on >>>> a LabView support forum? >>>> >>>> If that isn't helping, have you experimented with making a VI that > does >>>> nothing but display numbers? 99 times out of 100, axing things down > to >>>> the one problem and attacking just that will bring you more joy than >>>> trying to fix the underpinnings of something complex. >>>> >>>> -- >>>> http://www.wescottdesign.com >>>> i am really sorrry,, i did not had an intention to irritate u guys,, >>> >>> i was little bit frustrated thats all,, dont feel bad,, i apolojize my >>> mistake,, i am really sorry,, >> >> In general we do want to help -- it's just that sometimes it seems like >> newbies mistake newsgroups for corporate support sites. >> >> So -- did you try to just display floating point numbers? How'd it work >> out? >> >> -- >> >> Tim Wescott >> Wescott Design Services >> http://www.wescottdesign.com >> >> Do you need to implement control loops in software? >> "Applied Control Theory for Embedded Systems" was written for you. >> See details at http://www.wescottdesign.com/actfes/actfes.html > > > > actually floating point, decimal, are in buit by default it will display > the coeffients in floating point,, but the thing is these coeeficeints i > need to implement on microcontroller,, so MSP support only integers, i need > to display coefficients in integer format only,, > > http://decibel.ni.com/content/blogs/rashu > > this is blog i wrote in NI.COM >> kindly check.,, it also contains the vi of iir filter
Why not just shove the integer into a floating point, display that, and not pay attention to the trailing dot and zeros? Or do you want to start with an integer and display the effective coefficient, as scaled by your algorithm? Dig into the documentation for the numerical displays -- if you're lucky, you'll find out that there's some way to tell it how to format a number (if you can't tell by now, I'm not a Labview person -- I'm just trying to be helpful). If there's a way to format the number, then there will almost certainly be a way to suppress the trailing dot and zeros. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com Do you need to implement control loops in software? "Applied Control Theory for Embedded Systems" was written for you. See details at http://www.wescottdesign.com/actfes/actfes.html