MPEG Audio layer 2 for SHARC processors

Started by Anonymous in comp.dsp11 years ago 7 replies

Hello, http://www.autex.ru/dspa/dspa2008/09.pdf At the page 27 of this presentation have found: --- Available algorithms (factory...

Hello, http://www.autex.ru/dspa/dspa2008/09.pdf At the page 27 of this presentation have found: --- Available algorithms (factory mask-programmed) ‹ PCM ‹ Dolby Digital*, Dolby Digital EX2*, Dolby Pro Logic IIx* ‹ DTS 5.1*, DTS ES*, DTS Neo:6*, DTS 96/24* ‹ SRS Focus* ‹ MPEG2 AAC LC ‹ MP3 ‹ Graphic Equalizer, Balance/Fader, Bass Management, Delay Management Requirements: ‹...


code protection for c67x

Started by SYL in comp.dsp12 years ago 2 replies

Hi, We have a design that uses C67x and a cheap MCU. The C6747 will boot from serial flash. What is the best strategy for doing code...

Hi, We have a design that uses C67x and a cheap MCU. The C6747 will boot from serial flash. What is the best strategy for doing code protection (protecting the code from being ripped out)? Or if the code is ripped, it won't run properly. I found one interesting feature on SHARC-213xx called "ROM-based security", which is close to what we are looking for. Thanks a lot.


Multi-Sharc architecture

Started by Jerome in comp.dsp16 years ago 4 replies

Hi All We are ready to start a new audio design featuring 4 DSPs 21262 from ADI. I was wondering if anyone has experience in multiple...

Hi All We are ready to start a new audio design featuring 4 DSPs 21262 from ADI. I was wondering if anyone has experience in multiple dsps architectures, more precisely in inter-communication between the dsps. Our architecture is currently as follow : - 1 dsp to interface inputs / outputs (audio codecs, spdif, usb audio ..) - 3 dsp to generate sounds based on our algorithms. the dsp 1...


Oops! Analog Devices AD14060 Board

Started by Al Clark in comp.dsp9 years ago

(Oops!, Actually AD14060 or AD14060L, last post was wrong part number ) I am potentially working on an existing product that uses an ADI...

(Oops!, Actually AD14060 or AD14060L, last post was wrong part number ) I am potentially working on an existing product that uses an ADI AD14060 (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


GPL'd ADSP-21262 toolchain

Started by Eric in comp.dsp15 years ago 3 replies

Hello! I've been working on an ADSP-21262 assembler and simulator, and I had a friend mention that I might run into legal troubles, given that...

Hello! I've been working on an ADSP-21262 assembler and simulator, and I had a friend mention that I might run into legal troubles, given that my simulator (if it works) will compete (for a very limited definition of the word "compete") with Analog's VisualDSP++ toolchain. I searched the USPTO website and found that AD has a lot of patents on various bits of the SHARC technology. I'd like to ...


Confused about where the kernel is kept during dsp power down time

Started by axr0284 in comp.dsp12 years ago 2 replies

Hi, I have a board with a Sharc ADSP-21065L which is set to boot from an 8-bit flash PROM. I am trying to figure out how exactly to create...

Hi, I have a board with a Sharc ADSP-21065L which is set to boot from an 8-bit flash PROM. I am trying to figure out how exactly to create a boot loader file that will work. One thing I am confused about is where is the kernel kept when the board is powered down. Is it kept in the DSP internal RAM or do i need to put it in the flash as well? I am a little confused about this. I ask thi...


SPORT Multichannel Mode

Started by Steve Holle in comp.dsp17 years ago 4 replies

We are using ADSP-21065L SHARC DSPs and would like to tie up to 24 of them together using the SPORT in Multichannel mode. As we understand it,...

We are using ADSP-21065L SHARC DSPs and would like to tie up to 24 of them together using the SPORT in Multichannel mode. As we understand it, we need to tie the RXD and TXD signals together on all DSPs. Then we need to tie the DSP set up as the master RFS, TCLK, and RCLK signals to the corresponding signals on all the other slave DSP's, programming them for individual TX and RX time slots ...


How to effectively compute FFT from f_min to f_max, where f_min in not zero?

Started by Afinko in comp.dsp11 years ago 6 replies

Hi, I want to compute e.g. 8192 point FFT from signal that is sampled with Fs = 48kHz, but 8192 samples (or 4096) should represent frequencies...

Hi, I want to compute e.g. 8192 point FFT from signal that is sampled with Fs = 48kHz, but 8192 samples (or 4096) should represent frequencies e.g. 2500Hz to 3000Hz. I will need to implement it in SHARC DSP, therefore to compute huge FFT from 0 to 48kHz and then take a small part (2.5kHz-3kHz) is not an effective way. Is there any effective way? Thanks, Afi


21161 SHARC SIMD questions

Started by Jon Harris in comp.dsp17 years ago 12 replies

I have a few questions about SIMD memory accesses on the ADSP-21161N. It seems to me the documentation is confusing or incomplete. 1. I am...

I have a few questions about SIMD memory accesses on the ADSP-21161N. It seems to me the documentation is confusing or incomplete. 1. I am confused about the broadcast load feature. Referring to the Hardware Reference page 5-40, it states, "broadcast loading only influences writes to registers and write identical data to these registers." But then, on the next page in Table 5-41, a footn...


VisualDSP

Started by Jacek in comp.dsp17 years ago 2 replies

Hi, I have problem with VisualDSP++ 3.0 for SHARC. I tryed to install this software under Windows XP Proff. but there is problem with driver....

Hi, I have problem with VisualDSP++ 3.0 for SHARC. I tryed to install this software under Windows XP Proff. but there is problem with driver. I had to manually install driver for EZ-kit lite because after connecting USB port board was not recognized. After installing driver there is message in Device Menager that this device cannot be run. I didn't have those problem with isntalling softwa...


TI BIOS/CSL for 64xx/64x+ devices

Started by UglanceIcatch in comp.dsp14 years ago 6 replies

Greetings, I am seeking general ideas/opinions/guidance on software development for TI DSP devices, in particular, the newer fixed point...

Greetings, I am seeking general ideas/opinions/guidance on software development for TI DSP devices, in particular, the newer fixed point devices such as 6455. I do both algorithm development and implementation work. Most of my implementation work has been on simpler devices such as 5600, 96002, Sharc and 5510. I have been developing code for 6455 for about a month or so. Most of what I ...


VisualDSP++ problem

Started by Jacek in comp.dsp17 years ago 2 replies

Hi, I have problem with VisualDSP++ 3.0 for SHARC. I tryed to install this software under Windows XP Proff. but there is problem with driver....

Hi, I have problem with VisualDSP++ 3.0 for SHARC. I tryed to install this software under Windows XP Proff. but there is problem with driver. I had to manually install driver for EZ-kit lite because after connecting USB port board was not recognized. After installing driver there is message in Device Menager that this device cannot be run. I didn't have those problem with isntalling softwa...


automatic gain control

Started by nwa in comp.dsp13 years ago 6 replies

Hi, i'm new in this area. I'm now using ADSP 21061 SHARC digital signal processing. I want to ask about automatic gain control, how to compute...

Hi, i'm new in this area. I'm now using ADSP 21061 SHARC digital signal processing. I want to ask about automatic gain control, how to compute the signal power from the received signal? I want to use this signal power to scalling my signal. Cheers..


Strange situation with float return value. VDSP++ 3.5 SHARC.

Started by in comp.dsp16 years ago 3 replies

Hello, The following strange situation is happening to me, I'd like you help me to find out why, and how to solve it. I have several...

Hello, The following strange situation is happening to me, I'd like you help me to find out why, and how to solve it. I have several functions, prototyped like this (in .h files): float function1 (void); float function2 (float input); Their definitions are something like this: float function1 (void) { float output; // Do some processing based on data defined with global sco...


Analog Devices ADSP-21065L serial port trouble

Started by Zarin in comp.dsp15 years ago 1 reply

Hello, all, I'm having a very strange occurrence with Analog Devices ADSP-21065L SHARC DSP: the data come out of the serial port with the MSB of...

Hello, all, I'm having a very strange occurrence with Analog Devices ADSP-21065L SHARC DSP: the data come out of the serial port with the MSB of each byte cleared, despite the fact that internally (and I checked this with the VisualDSP++ debugger) the data have it in both states - sometimes high, other times low. This happens only on a handful of boards, and I don't see any differences in t...


Demodulator - Slicing by float to fixed conversion

Started by m26k9 in comp.dsp10 years ago 7 replies

Hello, I had a thread earlier about floating-point to fixed-point conversion for a confusion I had with the QAM demodulator code I have (SHARC...

Hello, I had a thread earlier about floating-point to fixed-point conversion for a confusion I had with the QAM demodulator code I have (SHARC dsp). This is my first time working with an demodulator assembly and it has really thrown me off. I am trying to figure out how the slicing is performed. If anybody could give any hint that would be great. 1) What I am confused is, how floating-point ...


ADI BlackFin 533 Opcode

Started by Ed H. in comp.dsp16 years ago 2 replies

Hi, Anybody have a list a BF533 opcode?? I'm looking for a table of opcode for the BF533. The 48 bits instruction word kind. Just like the...

Hi, Anybody have a list a BF533 opcode?? I'm looking for a table of opcode for the BF533. The 48 bits instruction word kind. Just like the one in ADSP-21161 SHARC DSP Instruction Set Reference. There is not such a table in the BF533 ISR. Why? Somebody suggest me to check the Visual DSP memory view and disassembly window but it looks like 16 bits and 32 bits instruction to me. Does...


Sharc SPORT hardware problem

Started by Quoc Thang NGUYEN in comp.dsp17 years ago 3 replies

Dear all, I am trying to interface 2 D/A converters to the SPORT serial port of a ADSP-21065L on an EZ-Kit Lite board. The converters are...

Dear all, I am trying to interface 2 D/A converters to the SPORT serial port of a ADSP-21065L on an EZ-Kit Lite board. The converters are located on a daughterboard approximately 6 inches away from the EMAFE connector where the serial port signals are tapped. The converters do not receive the serial signals directly. Instead, the serial signals are buffered by a SN74AHC245 fast TTL buffer ...


adsp - 211161N sport i2s mode

Started by puvi in comp.dsp16 years ago 2 replies

Hi all I want of interface a Ti's stereo codec tlc320ad77 to Analog devices hammerhead sharc DSP 211161N, it was a simple codec with a...

Hi all I want of interface a Ti's stereo codec tlc320ad77 to Analog devices hammerhead sharc DSP 211161N, it was a simple codec with a simple serial interface, my problem is that the codec uses data in data out with a common CLK signal but in dsp the sports don't support full duplex connection i have to use a pair of sports to do the same, now there is another problem i have to derive a com...


Hilbert transform using FFT approach

Started by w106pjs in comp.dsp15 years ago 48 replies

Hi All.. 1. As MATLAB uses the FFT approach computing the hilbert transform of the signal, is this approach suitable for real time...

Hi All.. 1. As MATLAB uses the FFT approach computing the hilbert transform of the signal, is this approach suitable for real time implementation on a SHARC or TI DSP. ? 2. Can somebody point out some good references for real time implementation of Hilbert transform. Thanks Paul This message was sent using the Comp.DSP web interface on www.DSPRelated.com