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ddt694
Joined: 12 Dec 2002
Posts: 174
Helped: 5
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 13 Sep 2003 17:38 please choose a dsp for me |
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i want to learn a dsp processor, but which one should i choose? TI's or ADI's ?
for float points, the candidates are from adsp21065 and tms320vc33.
for fixed points, i want to choose from adsp218x, adsp219x, adsp-bf53x,
tms320c54xx, c55xx.
i prefer ADI's to TI's, because most of ADI's devices, such as ADC,DAC, amplifier, DDS, are robust and very easy to use.
but i have to face the fact that in the dsp market TI is the number one,
despite that tms320 series are more complicated and harder to grasp than adsp series.
now, i am very confused.
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Jackal
Joined: 25 Sep 2002
Posts: 45
Location: Russia, Krasnodar
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| 14 Sep 2003 14:27 Re: please choose a dsp for me |
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In DSP World, Texas Instruments are best.
For example TMS320C6711-300Mhz @ 1800MFLOPS about 30$ cost.
ADI don't have any processor that have perfomance/cost ratio better that TI.
For example TMS320VC5502 - 11$ 200Mhz(at)400MIPS.
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vkchau
Joined: 07 Jun 2003
Posts: 73
Helped: 2
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| 15 Sep 2003 4:53 Re: please choose a dsp for me |
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| TI is the best but I chose ADI because ADSP is very easy in use. Check www.bdti.com to know more information about DSPs.
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steshenko
Joined: 31 May 2002
Posts: 67
Helped: 1
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| 15 Sep 2003 5:28 |
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| It is not principial - firstly you must study DSP algorithms and their realization on C. Concret type os DSP you choose in real development for real task.
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mami_hacky
Joined: 28 Mar 2002
Posts: 683
Helped: 4
Location: Some where
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| 15 Sep 2003 5:49 |
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For many years, I have used TI's DSPs for doing different kind of projects, Specialy I have used TMS320C31 and TMS320C7611 floating point, and TMS320C6201 fixed point DSP.
I accept that TI's DSPs are difficult, and time consuming to understand a learn, and I think that Analog Devices products are easier to learn. However, When it comes to system performance, cost, power consumption and factors like these, I think we should accept some difficulties and choose the better, more powerful DSP.
Recently, TI has worked a lot, on it's code composer studio. for example, The TMS320C6711 DSK, can be linked with matlab very very easily, you will not need to type even one line of TMS code, instead you can design your entire system using simulink it matlab. and so, you see how easy and fast is the work.
Code libraries: I do not know how complete, is the code library of analog devices. for TI, I know that they have even a simple, easy to learn, easy to configure operating system for their DSPs. they have implemented most of DSP functions, like FFT, Wavelets, ... for their DSPs ... and ...
Hum! Result:
Choose the one who is more powerful.
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bunalmis
Joined: 03 Jan 2003
Posts: 251
Helped: 4
Location: Turkey
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| 15 Sep 2003 11:18 Re: please choose a dsp for me |
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What do you want to make by dsp ?
Which internal peripherals must be have ?
TI produces signal processors and motion control processors, these are
DSP.
You must select a DSP for your applications.
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ddt694
Joined: 12 Dec 2002
Posts: 174
Helped: 5
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| 16 Sep 2003 13:49 Re: please choose a dsp for me |
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I want to using dsp in wireless communication .
I am very familiar to wireless communication algorithms, espacially synchrinization algorithms. I had realized some algorithms by using FPGA, such as digital receiver, demodulator, adaptive equlizer, FEC, direct sequence spread spectrum etc.
As for dsp, i am a layman.
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mgpc
Joined: 07 Jul 2003
Posts: 12
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| 18 Sep 2003 16:33 Re: please choose a dsp for me |
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FYI, TI's C54xx/C55xx are used in most of today's mobile phones, that is, if your interest is in wireless.
MGPC
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arturt134
Joined: 01 Jan 1970
Posts: 140
Helped: 1
Location: Poland
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| 19 Sep 2003 9:49 Re: please choose a dsp for me |
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ADSP-218x are ideal for battery powered systems, because they have lowest power consumption:
- 25mA @ 1.8V 80MIPS
- 6.5mA @ 1.8V Idle
- 100uA @ 1.8V Power down
But they are 16 bit fixed point, for many users too slow...
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ddt694
Joined: 12 Dec 2002
Posts: 174
Helped: 5
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| 22 Sep 2003 14:56 |
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| ADSP218x are somewhat too old.
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arturt134
Joined: 01 Jan 1970
Posts: 140
Helped: 1
Location: Poland
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| 23 Sep 2003 6:31 Re: please choose a dsp for me |
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| Datasheet from my ADSP-2189N, (ADSP-218x family) has revison 0 and year of printing 2001. Family ADSP-219x is newer... I don't think so there are old....
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