TigerSHARC BDTI score

Started by Luiz Carlos in comp.dsp15 years ago 24 replies

Does anyone have seen the BDTI score for the TigerSHARC? TigerSHARC (600MHz): 6280. BlackFin (600MHz): 3360. TMS320C64x (720Mz): ...

Does anyone have seen the BDTI score for the TigerSHARC? TigerSHARC (600MHz): 6280. BlackFin (600MHz): 3360. TMS320C64x (720Mz): 6480. A far as I know the TigerSHARC is almost four times faster than the BlackFin and two times faster than the C64x at 16 bit operations (for the same clock frequency). So, why these scores? What am I missing? Was used 32 bit math for scoring the TigerSHA...


How to implement a multi section biquad iir filter on the Blackfin DSP

Started by Allan in comp.dsp12 years ago 2 replies

Hi I want to implement a multi section biquad iir filter on the Blackfin DSP. The problem with the filter routines that are provided...

Hi I want to implement a multi section biquad iir filter on the Blackfin DSP. The problem with the filter routines that are provided within VisualDSP are: iir_fr16(): ----------- The function normalizes the a0 coefficient to 1. Since a1 and a2 also must be 1 or less in fractional representation, I cannot place the poles of the filter close to +1 which I would like. iirdf1_fr16(): -...


Blackfin bootrom and DMA

Started by Anonymous in comp.dsp13 years ago

Hi, I'm using the bootrom program to boot my Blackfin BF-534. I use the boot mode 001 : load a boot stream from flash memory. As specified in...

Hi, I'm using the bootrom program to boot my Blackfin BF-534. I use the boot mode 001 : load a boot stream from flash memory. As specified in the documentation, the first byte of the flash memory is 60, which means the flash is accessed by 16-bits words. Nevertheless, when the bootrom program uses DMA to transfer data from flash to external SDRAM, the word size (field WDSIZE of the registe...


Blackfin FFT precision

Started by Ed in comp.dsp16 years ago 1 reply

The 32 bit data types of the Blackfin processors should preserve more bits of precision than a 16 bit fixed point processor, if the FFT routines...

The 32 bit data types of the Blackfin processors should preserve more bits of precision than a 16 bit fixed point processor, if the FFT routines make use of the 32 bit data types. Can anyone comment on whether this is the case, and how well the precision is maintained in the calculations? How much precision would result from a library FFT routine of 2048 points of 10 bit data after an FFT i...


GSM AMR on blackfin.

Started by Akshay Mishra in comp.dsp13 years ago 4 replies

I am working on a GSM AMR codec. I have optimized the codec for real time operation on a Blackfin DSP on the 533 evaluation board. I capture the...

I am working on a GSM AMR codec. I have optimized the codec for real time operation on a Blackfin DSP on the 533 evaluation board. I capture the input and play it out. I have put the system in two configurations: (a) No codec, plain loopback of the captured sound on the output speaker. I get good sound. (b) When GSM AMR is involved in the operation, the output has the input but it is subdu...


Generation of digital white noise in Blackfin Fixed Point Processors

Started by bademiya in comp.dsp13 years ago 7 replies

Hi. I am trying to generate digital white noise from a bunch of uniform random numbers. However, when i write my code as belows for random...

Hi. I am trying to generate digital white noise from a bunch of uniform random numbers. However, when i write my code as belows for random number generation between -1 and 1, it takes a long time to process the data. for(i = 0; i < 5000; i++){ data[i] = 2 * (((double)rand() / (double)RAND_MAX) - 0.5); } I understand its due to the fact that Blackfin processors are fixed-po


4-Sale: 600Mhz Blackfin DSP Development Kit - EZLITE, New, $250

Started by Anonymous in comp.dsp12 years ago

Analog Devices CROSSCORE Development kit, EZ-KIT Lite evaluation board, 600Mhz Blackfin DSP, VisualDSP++. Model: ADDS-BF533-EZLITE, New in...

Analog Devices CROSSCORE Development kit, EZ-KIT Lite evaluation board, 600Mhz Blackfin DSP, VisualDSP++. Model: ADDS-BF533-EZLITE, New in box! The box doesn't even have a scratch on it. Great kit. Bought it last year but never got around to using it. Board has never been powered up. The VisualDSP++ is excellent. But, I need to make some space. Factory price is $400. I'll pay for ...


Commercial mpeg2 decoder/scaler with industry leading performance on Blackfin uClinux are available!

Started by Anonymous in comp.dsp11 years ago

We have developed mpeg2 decoder,mp3 decoder with excellent performance on Blackfin uClinux, for many applications with LCD, Scaler with...

We have developed mpeg2 decoder,mp3 decoder with excellent performance on Blackfin uClinux, for many applications with LCD, Scaler with mpeg2 decoder is also developed to suit LCD with pixel format ,the following are the details of the performance of the above: MPEG2 decoder: MCPS for MPEG2 decoder: 300MHZ on BF54X DSP, for 3M bps stream,D1 25fps; 350MHZ on BF...


Enable write back cache on Blackfin

Started by John McDermick in comp.dsp8 years ago 1 reply

Hi How do I enable write back cache on blackfin?

Hi How do I enable write back cache on blackfin?


Memory constraint (GNU gcc blackfin) not recognized by visualdsp compiler...how to fix?

Started by John McDermick in comp.dsp8 years ago 4 replies

I am trying to build this function in visualdsp but the compiler doesn't recognize the "m" constraint (only GNU gcc for blackfin does). I have...

I am trying to build this function in visualdsp but the compiler doesn't recognize the "m" constraint (only GNU gcc for blackfin does). I have tried to replace the "m" constraints by other constraints recognized by the visualdsp compiler, but I always get this message: gnu asm requires too many ['some letter'] regs For example: gnu asm requires too many D regs The function I am trying ...


Blackfin ADSP BF506F EZ Kit Lite

Started by HardySpicer in comp.dsp8 years ago 2 replies

Can't get Win7 to recognise the board at all. Anybody have any ideas? Hardy

Can't get Win7 to recognise the board at all. Anybody have any ideas? Hardy


Blackfin function epilogue

Started by jenikh in comp.dsp13 years ago 3 replies

Hi, deas anybody know what's diference between: SP + = 16; P0=[FP+4]; (R7:4)=[SP++]; UNLINK; JUMP (P0); and ...

Hi, deas anybody know what's diference between: SP + = 16; P0=[FP+4]; (R7:4)=[SP++]; UNLINK; JUMP (P0); and SP + = 16; (R7:4)=[SP++]; UNLINK; RTS; Thanks JkH


UART Blackfin

Started by sriram in comp.dsp16 years ago 4 replies

Hi all Does any one has a sample code of a file transfer from the EZKIT board to a PC through RS232 via UART. Thanks Regards Sriram

Hi all Does any one has a sample code of a file transfer from the EZKIT board to a PC through RS232 via UART. Thanks Regards Sriram


VisualDSP

Started by in comp.dsp15 years ago 3 replies

Hello ! Thanks for reading ! I would like to know if there's another way to download a software to an ADSP board than VisualDSP++,...

Hello ! Thanks for reading ! I would like to know if there's another way to download a software to an ADSP board than VisualDSP++, especially a solution for Linux. I would like to develop an application for a blackfin. Thanks in advance ! Sam


Blackfin 535 emulators

Started by DB in comp.dsp16 years ago 1 reply

Hello, I would appreciate to hear your opinions on using HPPCI Emulator vs USB type of Emulators for BF535 EZ-Kit Lite, and your...

Hello, I would appreciate to hear your opinions on using HPPCI Emulator vs USB type of Emulators for BF535 EZ-Kit Lite, and your recommendations/experiences. thanks, Dubi


HELP with Amp Modeling

Started by Wayne Preis in comp.dsp15 years ago 2 replies

I'm hoping that someone here can help me. I'm looking for a library of sounds for a guitar processor. I'm trying to build a battery...

I'm hoping that someone here can help me. I'm looking for a library of sounds for a guitar processor. I'm trying to build a battery powered processor using Analog Device's Blackfin chip. Does anybody have any suggestions on where to begin looking? Thanks so much, WP


Profiling read/write operations

Started by John McDermick in comp.dsp8 years ago

Is there some way of profiling code for memory read/writes ? (In VisualDSP++ for blackfin and in MS Visual Studio). Like if I have 3 arrays A,...

Is there some way of profiling code for memory read/writes ? (In VisualDSP++ for blackfin and in MS Visual Studio). Like if I have 3 arrays A, B and C would it be possible to profile how often A, B and C is accessed?


Blackfin

Started by sriram in comp.dsp16 years ago 2 replies

Hi all I am using the below format to copy the contents of a file intoa buffer on the BF processor but it does not work it worked on the...

Hi all I am using the below format to copy the contents of a file intoa buffer on the BF processor but it does not work it worked on the SHARC processor.Has anyone faced a similar problem. float dm sig[600]={ #include "C:/lookup.dat"; }; Thnaks Regards SR


DSP selection for FSK modem

Started by Unomano in comp.dsp13 years ago

Hello ALL, i want to implement GMSK modem (1200-9600 bps) using DSP proscessor. what platform should i use (Blackfin, Sharc, 21xx,...

Hello ALL, i want to implement GMSK modem (1200-9600 bps) using DSP proscessor. what platform should i use (Blackfin, Sharc, 21xx, 320c5000/6000 etc.)???


Could not print on VDSP 3.1

Started by sriram in comp.dsp16 years ago 1 reply

Hi I wrote a small program in which i use printf and fprintf but they do not work. Instead I get a "breakpoint hit at (it is the address...

Hi I wrote a small program in which i use printf and fprintf but they do not work. Instead I get a "breakpoint hit at (it is the address on dissassembly)"whenever a printf or a fprintf is executed.I am using Blackfin 533 on windows xp. Thanks Regards Sriram