fast sliding max algorithm in SHARC assembly.

Started by robert bristow-johnson in comp.dsp6 years ago 1 reply

so this is sorta a specific question (and better suited to comp.dsp than dsp.stackexchange.com): there is this O(log2(N)) complexity max...

so this is sorta a specific question (and better suited to comp.dsp than dsp.stackexchange.com): there is this O(log2(N)) complexity max (or min) algorithm perhaps originally from: Brookes: "Algorithms for Max and Min Filters with Improved Worst-Case Performance" IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS?II: ANALOG AND DIGITAL SIGNAL PROCESSING, VOL. 47, NO. 9, SEPTEMBER 2000 i...


VisualDSP++ and Tcl

Started by Jacek in comp.dsp17 years ago 1 reply

Hi, Some times ago I asked about possibilties to have tools to load program into sharc memory (ezkit with USB interface). I know that this is...

Hi, Some times ago I asked about possibilties to have tools to load program into sharc memory (ezkit with USB interface). I know that this is not easy because I don't have specification of usb debugging protocol. In vdsp documentation there is information that user can call VDSP from command line and and run tcl script using "idde -f . VisualDSP main application is created and


The changing of sampling rate of AD1819A

Started by Marek in comp.dsp16 years ago 4 replies

Hello, everybody. I'm just a beginner. I use ADSP-21065L SHARC EZ-KIT Lite where is codec AD1819A. The default sampling rate is 48 kHz and I need...

Hello, everybody. I'm just a beginner. I use ADSP-21065L SHARC EZ-KIT Lite where is codec AD1819A. The default sampling rate is 48 kHz and I need to change it. But it's so difficult for me to do it. I would like to change it for example from 48 kHz to 8 kHz. Please help me if you can. Thank you very much Marek The code: /*---------------------------------------------------------------------...


Execution time of Texas C6713 versus SHARC 21262

Started by phil in comp.dsp16 years ago 6 replies

Hello all, I'm currently evaluating some DSPs for a soon to come project which will include the development of a hardware platform and the...

Hello all, I'm currently evaluating some DSPs for a soon to come project which will include the development of a hardware platform and the port of a software currently running on Mac and PC platforms. I've written a non optimized piece of code (in C++) and ran it with the simulators provided by Texas and Analog. I got about 74000 cycles for the 6713 and 32000 for the 21262. I don't want to...


ADSP-14060 Board?

Started by Al Clark in comp.dsp9 years ago

I am potentially working on an existing product that uses an ADI ADSP-14060 (Quad SHARC). My task is strictly software. I might like to...

I am potentially working on an existing product that uses an ADI ADSP-14060 (Quad SHARC). My task is strictly software. I might like to buy a working board that includes this processor and a JTAG connection. Does anyone have something that might work? Al Clark Danville Signal


rand() on the ADSP21056l boards

Started by Toby Newman in comp.dsp16 years ago 1 reply

I'm using Analog Devices' SHARC ADSP21065l board. My bundled VisualDSP++ documentation states: "The rand function returns a pseudo-random...

I'm using Analog Devices' SHARC ADSP21065l board. My bundled VisualDSP++ documentation states: "The rand function returns a pseudo-random integer value in the range [0, 2^32 =3F 1]." 2^32 = 4294967296. After running the below code for about an hour I ended up with j = 2147483647 i.e. j was equal to exactly half of 4294967296 i.e. exactly half of (2^32 -1) //====================...


TI & CCS - rts.lib problem? "Error, Don't know how to build file "C:\ti\tutorial[...]""

Started by Toby Newman in comp.dsp16 years ago 3 replies

I've just recently moved from SHARC & Visual DSP to TIC6713 with Code Composer Studio. I am working through the tutorials and I have met a...

I've just recently moved from SHARC & Visual DSP to TIC6713 with Code Composer Studio. I am working through the tutorials and I have met a problem: In the second tutorial "Project Management" I follow the instructions but when I try to build the project I get: ===================================================== ------------------------- maxminlibrary.pjt - Debug ---------------...


chip duplication

Started by ger_lough in comp.dsp12 years ago 1 reply

Hi All, Just a quick curiosity. If you write an algorithm in visualDSP++ ,for example, for a sharc processor and want to put this on thousands of...

Hi All, Just a quick curiosity. If you write an algorithm in visualDSP++ ,for example, for a sharc processor and want to put this on thousands of such chips, how can this quantity of duplication be achieved? Do you send your algorithm to Analog Devices and they produce the customized chips? And what would the cost be roughly, say for 1,000; 10,000 and 100,000 chips (just for the duplication, not ...


Info Needed

Started by Anonymous in comp.dsp15 years ago 4 replies

Hi, We are developing a card with an ARM processor (PXA255) and a low cost Sharc chip (DSP and CPU in a single board). We want to use this...

Hi, We are developing a card with an ARM processor (PXA255) and a low cost Sharc chip (DSP and CPU in a single board). We want to use this card for a medical application. Does anyone know of a low cost dual processor card with a floating point dsp and the capability of running Linux on the host CPU? The Tiburon from Bittware is the only one I could find but it is too big, too expensive,...


choosing DSP for biosignal processing

Started by Adam Wilson in comp.dsp17 years ago 4 replies

Hello, I am going to be designing a system for processing biomedical signals (from neural tissue), and I am interested to hear what some...

Hello, I am going to be designing a system for processing biomedical signals (from neural tissue), and I am interested to hear what some people think might be a good choice for a processor based on some of my criteria. We have a hardware system now that works great (it uses the Sharc 21065), but we eventually need to design a more mobile unit. Here are some of my initial criteria: 1) it...


ADSP 21161N ez_kite_lite, english

Started by chris_08 in comp.dsp16 years ago 1 reply

Hello! I am a student of the TGM a technical college in Vienna. I use the ADSP 21161N_ez_kite_lite board with a SHARC processor. I need...

Hello! I am a student of the TGM a technical college in Vienna. I use the ADSP 21161N_ez_kite_lite board with a SHARC processor. I need help because I want to receive some signals (HIGH/LOW) from an external board which is connected to a port from the DSP. The signals will be used by the application. I have problems to address each bus-line from the port separate. I tried this by the ...


SHARC: Linker, libraries, etc. Advise needed

Started by in comp.dsp16 years ago 4 replies

Hello guys, Working on ADSP-21065L, VisualDSP++ 3.5 Nov'04 update. I my application I'd get good benefit form the sprintf function, which...

Hello guys, Working on ADSP-21065L, VisualDSP++ 3.5 Nov'04 update. I my application I'd get good benefit form the sprintf function, which one links to with #include . However, I don't need the full of the library. But (as expected) the full library plus my code do not fit within the internal memory of the '065L. I tried to change the .ldf in order to make some part of Bl


DSP development board with fast A/D

Started by dohm in comp.dsp15 years ago 1 reply

I am looking for a DSP development board for a bench-top project. I want to use an Analog Devices Sharc or equivalent TI processor. My input...

I am looking for a DSP development board for a bench-top project. I want to use an Analog Devices Sharc or equivalent TI processor. My input signal of interest is a LFM waveform with a 30MHz bandwidth (Lets assume it is at baseband for now). So, I would like to find a development board with dual A/D converters that sample > 30Msps. It would also be interesting to know if any development boards are


cost of pursuing my own idea

Started by SYL in comp.dsp11 years ago 3 replies

Hi, I think I am on to a fairly interesting idea worth pursuing. Basically it is an effect pedal for guitar/voice with a set of new features....

Hi, I think I am on to a fairly interesting idea worth pursuing. Basically it is an effect pedal for guitar/voice with a set of new features. Not dare to ask my boss coz he will for sure be pissed. So I'd like to collect some idea of what the real cost would be for making it, this should include BOM, tooling... but ignore the distribution and all that crap. the major parts are Sharc-...


Any comments on Visual DSP++ VDK?

Started by Lawnmower in comp.dsp17 years ago 1 reply

Anyone using the RTOS VDK on the Analog Devices SHARC/Blackfin? A quick trawl of the newsgroup gave 5 posts from ages ago, but nothing of...

Anyone using the RTOS VDK on the Analog Devices SHARC/Blackfin? A quick trawl of the newsgroup gave 5 posts from ages ago, but nothing of interest. We are considering using this RTOS on the next project, but have no experience of it so comments would be appreciated! Kevin -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Ser...


Low-power, Low-cost DSP chip

Started by Edward E. Hopkins in comp.dsp17 years ago 2 replies

Ok I am hunting for a low-power AND low-cost DSP. I have searched all major manufacturers (Zilog, Intel, TI, AD, and Mot) and have not yet found...

Ok I am hunting for a low-power AND low-cost DSP. I have searched all major manufacturers (Zilog, Intel, TI, AD, and Mot) and have not yet found a suitable DSP to meet a stringent cost and power spec imposed on me. I've checked the TI 320 C6000, 5000, and 2000 series but they are just too expensive and consume too much power. The AD (blackfin, SHARC) chips appear to be no better on power ...


How to transfer data from Tern RA-80 to 21065L Ez-LAB via serial port

Started by Ning in comp.dsp17 years ago 2 replies

Hi all, I am not quite familiar with 21065L. Now I want to transfer data from Tern R-Engine-A to SHARC 21065L. Is it possible to achieve it...

Hi all, I am not quite familiar with 21065L. Now I want to transfer data from Tern R-Engine-A to SHARC 21065L. Is it possible to achieve it via RS232 ? Thank you in advance. Regards, Ning


Cosine function in sin.asm for Sharc 21061

Started by Mikkel Haugstrup in comp.dsp16 years ago 1 reply

Is it just me or doesn't the cosine function in sin.asm work? I got the sine function running fine, but for instance cos(1) returns...

Is it just me or doesn't the cosine function in sin.asm work? I got the sine function running fine, but for instance cos(1) returns -1.#INF0000. Has anybody used the cosine function with succes? Or know another a cosine/sine approximation routine that works? /Mikkel


Convert cascade to parallel

Started by Jon Harris in comp.dsp17 years ago 4 replies

I have implemented various IIR filters, up to 16th order, as a series of biquads in cascade. However, I now am attempting to optimize this code...

I have implemented various IIR filters, up to 16th order, as a series of biquads in cascade. However, I now am attempting to optimize this code to run on a SIMD processor (SHARC 21161). For that purpose, it appears that a parallel filter form would be much better suited since it would allow working on 2 paths in parallel. Is there any simple way to convert my cascade coefficients to paral...


DMA Chaining SHARC ADSP-21369

Started by jjca...@gmail.com in comp.dsp13 years ago

Hi! I made a code to transfer from external (SDRAM) to internal memory using "memory to memory" mode in DMA. Now I need to use a circular...

Hi! I made a code to transfer from external (SDRAM) to internal memory using "memory to memory" mode in DMA. Now I need to use a circular buffer using chained DMA but... it doesn =B4t work! That's part of the code: ----------------------- .=2E.. //Proceed from Block A to Block C TCB_Block_A[0] =3D (int) TCB_Block_C + 3 + PCI ; TCB_Block_A[3] =3D (unsigned int) Block_A + PCI...