DSPRelated.com

IDCT on Blackfin

Started by pete4164_1 in Analog Devices DSPs19 years ago

I hvae a problem with the original ADI example code IDCT for blackfin. If I write data to the input buffer for the DCT (example code from ADI)...

I hvae a problem with the original ADI example code IDCT for blackfin. If I write data to the input buffer for the DCT (example code from ADI) and call the r8x8dct routine, the result of the DCT is overwrite the input. If I call the IDCT function with these DCT results, the result of the IDCT must be the same for all 64 values (plus or minus one). But it is not the same! The greatest differen...


Ez-KIT BF533 connected with Blackfin FPGA EZ-Extender

Started by in Analog Devices DSPs20 years ago

Hi Is there anyone have experience with Ez-KIT BF533 connected with Blackfin FPGA EZ-Extender. I try few days ago it seems work but...

Hi Is there anyone have experience with Ez-KIT BF533 connected with Blackfin FPGA EZ-Extender. I try few days ago it seems work but very strange, sometimes, impossible to work with the two boards connected together. Each one is working correct when working alone. If anyone is working with these two boards connected together, could you explain if there is specific way to work (switc...


Blackfin SDRAM

Started by in Analog Devices DSPs20 years ago 1 reply

How can a make faster access to the blackfin SDRAM? I have a program that is written in C, that is having some timing problems because of the...

How can a make faster access to the blackfin SDRAM? I have a program that is written in C, that is having some timing problems because of the external memory accesses. How can I solve this ? --=20 Guilherme Loch G=F3es "Always do sober what you said you'd do drunk. That will teach you to keep your mouth shut." -Ernest Hemingway =20


Blackfin IIR Filter routine with a0 coefficient normalized to 0.5

Started by dcac...@gmx.ch in Analog Devices DSPs20 years ago

Hello out there, I just wondered whether anyone of you has already solved the problem I am currently facing. I want to implement a multi...

Hello out there, I just wondered whether anyone of you has already solved the problem I am currently facing. I want to implement a multi section biquad iir filter on a 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 fraction...


Blackfin SDK porting

Started by "jleslie.rm" in Analog Devices DSPs20 years ago

I have a quick question about the video applications in the latest Blackfin SDK. They seem to all be for 533s or 561s. I have a...

I have a quick question about the video applications in the latest Blackfin SDK. They seem to all be for 533s or 561s. I have a EZKIT-BF537 with the AV daughter-board. I was hoping someone would have an idea what issues I might have porting these, or what I should look for (or even if it's just a stupid idea in the first place). All suggestions most welcome. John


has anyone implememnted connected component code a image using blackfin processor

Started by Naveen koul in Analog Devices DSPs20 years ago

hi, i was looking and want to know that has anyone implememnted connected component code a image using blackfin processor and Template...

hi, i was looking and want to know that has anyone implememnted connected component code a image using blackfin processor and Template matching code or is there any library made for such things. regards Naveen


Audio attenuation when you run thru EZ-KIT BF533 Board

Started by "Sundar S." in Analog Devices DSPs20 years ago 1 reply

Hi, When I run a example of audio codec talk through example which is found in the installation directory using BF-533 EZKIT Board ,the output...

Hi, When I run a example of audio codec talk through example which is found in the installation directory using BF-533 EZKIT Board ,the output is attenuated when complared with direct play play from the audio output from the CPU unit(stereo output) Note:example found in this path in blackfin installation folder --> C:\Program Files\Analog Devices\VisualDSP 4.0\Blackfin\EZ-KITs\ADSP-BF53


Video Outputting in C (Blackfin BF533)

Started by matt...@yahoo.co.uk in Analog Devices DSPs20 years ago

Hi everyone, Thanks first of all for your help so far, I now have a new challenge (although I don't think it's that challenging!) I need to...

Hi everyone, Thanks first of all for your help so far, I now have a new challenge (although I don't think it's that challenging!) I need to pass my video input through some image processing and onto a screen. I can input video as a frame and see it on my PC attached to my Blackfin processor, but how do I get it from wherever it's stored to an external display attached to my EZ-KIT Lite b...


Carsten Knop's code

Started by Bilimsel Adam in Analog Devices DSPs20 years ago 2 replies

Dear list members, I have PAL video cameras and PAL TVs. As I know from www.blackfin.org, there is a Carsten Knop's code for both PAL video...

Dear list members, I have PAL video cameras and PAL TVs. As I know from www.blackfin.org, there is a Carsten Knop's code for both PAL video input and PAL video output for BF533 EZ-Kit Lite. Since neither her e-mail nor her web address is not active, I could not have found the code anywhere. (Moreover www.blackfin.org site is down by a virus for a long time.) If you have this code, ...


About ADSP-BF532eM10

Started by Bilimsel Adam in Analog Devices DSPs20 years ago

Hi, http://www.analog.com/processors/platforms/blackfin_eMedia/index.html In ADI's Website it is written that; "Samples of the Blackfin...

Hi, http://www.analog.com/processors/platforms/blackfin_eMedia/index.html In ADI's Website it is written that; "Samples of the Blackfin eMedia Platform are available now. The ADSP-BF532eM10 is priced at $11.95 each, in quantities of 100,000 units." The Blackfin eMedia Platform supports: * Multiple digital video formats - Windows Media 9 Series / VC-1, MPEG-2, MPEG-4, H264 AVC and...


Blackfin.org status?

Started by John Speth in Analog Devices DSPs20 years ago 5 replies

Does anyone know the status of the blackfin.org web site? I've been unable to connect to it for a week. I wonder of the problem could be on...

Does anyone know the status of the blackfin.org web site? I've been unable to connect to it for a week. I wonder of the problem could be on my end. Is anyone else able to access it? Thanks, JJS


optimize my code

Started by assnehal in Analog Devices DSPs20 years ago

Hi i m a new user to Blackfin ADSP I hv written a code for 4-tab FIR filter Its at very preliminary level I want to otimise it, how should i...

Hi i m a new user to Blackfin ADSP I hv written a code for 4-tab FIR filter Its at very preliminary level I want to otimise it, how should i proceed Can any one help me to optimise it I want to learn the optimization techniques for blackfin single core family-please guide me Send me some links i should refer Thanks, Sneha


Blackfin execution peculiarity

Started by John Speth in Analog Devices DSPs20 years ago

Hi Group- My application is running on a Blackfin BF532 mainly collecting analog signal samples and doing some simple processing on a...

Hi Group- My application is running on a Blackfin BF532 mainly collecting analog signal samples and doing some simple processing on a per- sample basis. The data rate is 4M SPS so I'm digging for any speed optimizations I can get. I've observed a situation in which _adding_ lines of code makes the execution time _decrease_! Here's my code: #define BUFFER_SIZE 32 static long gB...


Cycle count in Blackfin BF535

Started by Dhaval Parekh in Analog Devices DSPs20 years ago 5 replies

Hi All, I would highly appreciate if any one can answer my query. I have written a small program in C to check the cycle consumption for...

Hi All, I would highly appreciate if any one can answer my query. I have written a small program in C to check the cycle consumption for different operations in Blackfin (BF535) I am using the demo version of Visual DSP++ 3.5 simulator for this purpose. The code which I have written is as follows... void main(void) { long int a,b,i1,i2,i3,i5,i6; a=4; b=2; i1 = a+b; i2 = a*...


query on external memory size in BlackFin 536

Started by Naveen koul in Analog Devices DSPs20 years ago 3 replies

Sir, I have certain query about the external memory that i want to use with the Blackfin Processor. 1).How many data and address lines are...

Sir, I have certain query about the external memory that i want to use with the Blackfin Processor. 1).How many data and address lines are there in Blackfin536 processor? 2).Can we use more than one external memory with black fin processor? 3). What can be the maximum external memory size that can be used with Black fin processor? waiting for reply eagerly. Regards Naveen


UART Code for Blackfin 533

Started by Chandrakant Deoda in Analog Devices DSPs20 years ago 3 replies

Dear Group,   If any one have any example code of UART for Blackfin 533 which is written in C language. Please...

Dear Group,   If any one have any example code of UART for Blackfin 533 which is written in C language. Please share with me. In


Blackfin kernel Information

Started by Chandrakant Deoda in Analog Devices DSPs21 years ago

Dear Group,   I am writing the USB based Blackfin kernel, can you suggest me where I get the  good...

Dear Group,   I am writing the USB based Blackfin kernel, can you suggest me where I get the  good document, examp


filling and dumping in Blackfin VDSP

Started by prasanth rajagopal in Analog Devices DSPs21 years ago

Hi    I am using the Blackfin version of VDSP++4.0. Is it possible to fill and dump '16bit fractional values' directly to/from a .DAT...

Hi    I am using the Blackfin version of VDSP++4.0. Is it possible to fill and dump '16bit fractional values' directly to/from a .DAT file. If anyone had tried plese let me know, as I am not getting the expected values.   with regards prasanth    


SDRAM (Blackfin HPPCI ICE)

Started by Chung Hao Chang in Analog Devices DSPs23 years ago

SDRAM (Blackfin HPPCI ICE) Hello, We designed the target board with ADSP-21532s, and usi

SDRAM (Blackfin HPPCI ICE) Hello, We designed the target board with ADSP-21532s, and usi


Use VDSP++ from Ezkit with custom board?

Started by Devin D. Butterfield in Analog Devices DSPs22 years ago 4 replies

Hi all, Does anyone know if it is possible to use the VisualDSP++ software that comes with a Blackfin ezkit with a custom...

Hi all, Does anyone know if it is possible to use the VisualDSP++ software that comes with a Blackfin ezkit with a custom designed Blackfin-based board? The reason I'm asking is that I'm planning to design a Blackin based board with hi-speed ADCs and DACs for processing modem