Hi, I am planning to learn using a dsp kit. My university has the following two kits from TI 1. TMS320VC5416-16 bit fixed point 2. TMS320C6713- 32 bit floating point Since I am new to this field I m unable to choose between the two. Can you please suggest which one should I pick so that I can start learning them. Thanks, Vishwanath
TMS320vc5416 or TMS320C6713
Started by ●January 16, 2009
Reply by ●January 16, 20092009-01-16
vasindagi wrote:> Hi, > > I am planning to learn using a dsp kit. My university has the following > two kits from TI > 1. TMS320VC5416-16 bit fixed point > 2. TMS320C6713- 32 bit floating point > > Since I am new to this field I m unable to choose between the two. Can you > please suggest which one should I pick so that I can start learning them.Floating point simplifies calculations by attending to scaling detail that the programmer needs to address with fixed point. You may find that 16 bits forces you to double-precision for some operations. I would choose the 6713. Jerry -- Engineering is the art of making what you want from things you can get. �����������������������������������������������������������������������
Reply by ●January 16, 20092009-01-16
> > I would choose the 6713. >������������������������������������������������������������������� I would second that, if you are new and are learning start with the 6713. If you want to do fixed-point only, you can still do this on the 6713. If you get stuck with the fixed-point on the 5416 you won't be able to go to floating point except to use expensive software emulation.
Reply by ●January 16, 20092009-01-16
vasindagi wrote:> Hi, > > I am planning to learn using a dsp kit. My university has the following > two kits from TI > 1. TMS320VC5416-16 bit fixed point > 2. TMS320C6713- 32 bit floating point > > Since I am new to this field I m unable to choose between the two. Can you > please suggest which one should I pick so that I can start learning them.A young guy and young girl came to the rabbi to ask for his advice. A girl: "Tomorrow is my first night with my fiance. What kind of night dress should I put on? Should it be a long dress, or a short dress, or an open dress, or a closed dress, or whatever?" A boy: "I got some money. Will you please give me an advice what to do with it: maybe, invest into something, or buy some real estate, or gold, or put it in a bank?" The rabbi: "My dear children, I have one answer for both of you: whatever you do, you will certainly be fucked." VLV
Reply by ●January 18, 20092009-01-18
On Fri, 16 Jan 2009 10:09:49 -0500, Jerry Avins <jya@ieee.org> wrote:>Floating point simplifies calculations by attending to scaling detail >that the programmer needs to address with fixed point. > >You may find that 16 bits forces you to double-precision for some >operations.Yes, indeed, and what better time to learn about such things? :-)> >I would choose the 6713.That's interesting, I would suggest the 5416 because of the exact reasons you gave - it forces one to think in terms of fixed-point processing, thus teaching fixed-point operations. I maintain that it will be easier to use floatng point after learning fixed point than the other way around. It's like learning to drive a car with a manual transmission vs. an automatic. The manual has a bigger learning curve, but once you've learned it you can drive any car.> >JerryOn Fri, 16 Jan 2009 07:24:57 -0800 (PST), Chris Felton <chris.felton@gmail.com> wrote:>... >������������������������������������������������������������������� > >I would second that, if you are new and are learning start with the >6713. If you want to do fixed-point only, you can still do this on >the 6713. If you get stuck with the fixed-point on the 5416 you won't >be able to go to floating point except to use expensive software >emulation.Here "expensive" refers to the time and code space taken up by software emulation. While processors that do floating point in hardware are of course much faster for FP operations, they're more expensive in that other way, the actual cost of the DSP chip. Like so much else in engineering, it's a tradeoff. In that sense, I have to agree with Vladimir's response.
Reply by ●January 18, 20092009-01-18
On Jan 16, 4:08�am, "vasindagi" <vish...@gmail.com> wrote:> Hi, > > I am planning to learn using a dsp kit. My university has the following > two kits from TI > 1. TMS320VC5416-16 bit fixed point > 2. TMS320C6713- 32 bit floating point > > Since I am new to this field I m unable to choose between the two. Can you > please suggest which one should I pick so that I can start learning them. > > Thanks, > VishwanathThe 5416 memory map can be a pain to understand, at least it was for me. Take a look at the maps in the data sheet and see if it makes sense. This may not matter for toy programs, but it needs to be mastered for a real application. John
Reply by ●January 18, 20092009-01-18
Ben Bradley wrote:> On Fri, 16 Jan 2009 10:09:49 -0500, Jerry Avins <jya@ieee.org> wrote: > >> Floating point simplifies calculations by attending to scaling detail >> that the programmer needs to address with fixed point. >> >> You may find that 16 bits forces you to double-precision for some >> operations. > > Yes, indeed, and what better time to learn about such things? :-) > >> I would choose the 6713. > > That's interesting, I would suggest the 5416 because of the exact > reasons you gave - it forces one to think in terms of fixed-point > processing, thus teaching fixed-point operations. > > I maintain that it will be easier to use floatng point after > learning fixed point than the other way around.Sure. Floating point is always easier. (So is 32 bits vs. 16.)> It's like learning to drive a car with a manual transmission vs. an > automatic. The manual has a bigger learning curve, but once you've > learned it you can drive any car.I think everyone should be able to drive a manual transmission. There are lots of advantages: better mileage, the ability to start the car with a dead battery just by getting it to roll, and its ability to get you home with a punk transmission. That doesn't mean that one's first experience learning to drive should be on a manual. As far as I can see, an automatic transmissions in passenger cars is useful primarily as a learning tool. ... Jerry -- Engineering is the art of making what you want from things you can get. �����������������������������������������������������������������������
Reply by ●January 19, 20092009-01-19
Thanks to all for the suggestions. I will start off with the 6713. Once I m used to it I ll switch to the 5416.>Ben Bradley wrote: >> On Fri, 16 Jan 2009 10:09:49 -0500, Jerry Avins <jya@ieee.org> wrote: >> >>> Floating point simplifies calculations by attending to scaling detail>>> that the programmer needs to address with fixed point. >>> >>> You may find that 16 bits forces you to double-precision for some >>> operations. >> >> Yes, indeed, and what better time to learn about such things? :-) >> >>> I would choose the 6713. >> >> That's interesting, I would suggest the 5416 because of the exact >> reasons you gave - it forces one to think in terms of fixed-point >> processing, thus teaching fixed-point operations. >> >> I maintain that it will be easier to use floatng point after >> learning fixed point than the other way around. > >Sure. Floating point is always easier. (So is 32 bits vs. 16.) > >> It's like learning to drive a car with a manual transmission vs. an >> automatic. The manual has a bigger learning curve, but once you've >> learned it you can drive any car. > >I think everyone should be able to drive a manual transmission. There >are lots of advantages: better mileage, the ability to start the car >with a dead battery just by getting it to roll, and its ability to get >you home with a punk transmission. That doesn't mean that one's first >experience learning to drive should be on a manual. As far as I can see,>an automatic transmissions in passenger cars is useful primarily as a >learning tool. > > ... > >Jerry >-- >Engineering is the art of making what you want from things you can get. >����������������������������������������������������������������������� >
Reply by ●January 19, 20092009-01-19
On Jan 18, 9:37�pm, Jerry Avins <j...@ieee.org> wrote:> Ben Bradley wrote: > > On Fri, 16 Jan 2009 10:09:49 -0500, Jerry Avins <j...@ieee.org> wrote: > > >> Floating point simplifies calculations by attending to scaling detail > >> that the programmer needs to address with fixed point. > > >> You may find that 16 bits forces you to double-precision for some > >> operations. > > > � �Yes, indeed, and what better time to learn about such things? :-) > > >> I would choose the 6713. > > > � �That's interesting, I would suggest the 5416 because of the exact > > reasons you gave - it forces one to think in terms of fixed-point > > processing, thus teaching fixed-point operations. > > > � �I maintain that it will be easier to use floatng point after > > learning fixed point than the other way around. > > Sure. Floating point is always easier. (So is 32 bits vs. 16.) > > > � �It's like learning to drive a car with a manual transmission vs. an > > automatic. The manual has a bigger learning curve, but once you've > > learned it you can drive any car. > > I think everyone should be able to drive a manual transmission. There > are lots of advantages: better mileage, the ability to start the car > with a dead battery just by getting it to roll, and its ability to get > you home with a punk transmission. That doesn't mean that one's first > experience learning to drive should be on a manual. As far as I can see, > an automatic transmissions in passenger cars is useful primarily as a > learning tool. > > � �... > > Jerry > -- > Engineering is the art of making what you want from things you can get. > �����������������������������������������������������������������������My wife refuses to learn to drive my stick-shift car. She puts the manual transmission in the category with hand-crank starter -- obsolete. I guess it's a guy thing. John
Reply by ●January 19, 20092009-01-19
John wrote: ...> My wife refuses to learn to drive my stick-shift car. She puts the > manual transmission in the category with hand-crank starter -- > obsolete. I guess it's a guy thing.I managed to teach my wife to drive a stick on an Austin A-30. (She wanted that car so much, she would have done anything.) Eventually, we got a Plymouth Valiant, and she said that as I did most of the driving, it should be a stick. Wrong: it became her car. (I got an old Ford to get back and forth to work.) A couple of weeks after that arrangement started, She and her visiting mother went to the market. Since her father's car (the one she learned to drive on) was blocking her in the driveway, she took that. As she was leaving, our one-and-half-year-old son began agitating to go along. Too late! I plopped him into the Valiant, where his safety seat was, and gave chase. My wife and I pulled into adjacent parking places at the same time. She handed me her father's keys and said, "Take this damned thing home. It shifts when *it* wants to!" Automatic transmissions are better now than in 1960, but not by enough. Jerry -- Engineering is the art of making what you want from things you can get. �����������������������������������������������������������������������
