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

Started by UglanceIcatch in comp.dsp13 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 ...


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

Started by in comp.dsp15 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...


VisualDSP++ problem

Started by Jacek in comp.dsp15 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...


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

Started by axr0284 in comp.dsp11 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...


Multi-Sharc architecture

Started by Jerome in comp.dsp14 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...


Cosine function in sin.asm for Sharc 21061

Started by Mikkel Haugstrup in comp.dsp15 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


fast sliding max algorithm in SHARC assembly.

Started by robert bristow-johnson in comp.dsp4 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...


SPI and I2S on SHARC ADSP-21369

Started by Omer Osman in comp.dsp9 years ago 2 replies

Hello world, I am putting together my first embedded DSP processor with an FPGA and I am wondering if there are specific pins I should use in...

Hello world, I am putting together my first embedded DSP processor with an FPGA and I am wondering if there are specific pins I should use in the DPI for SPI (i will need two seperate SPI buses, one for FPGA and another for DSP-DSP comm). Also, if there are specific pins to use for I2S on the DAI or if any can be routed in software. Danke, Omer Osman


Demodulator - Slicing by float to fixed conversion

Started by m26k9 in comp.dsp9 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 ...


Info Needed

Started by Anonymous in comp.dsp14 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,...


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

Started by Afinko in comp.dsp9 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


Analog Devices ADSP-21065L serial port trouble

Started by Zarin in comp.dsp13 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...


Sharc SPORT hardware problem

Started by Quoc Thang NGUYEN in comp.dsp16 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 ...


Low-power, Low-cost DSP chip

Started by Edward E. Hopkins in comp.dsp16 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 ...


SPORT Multichannel Mode

Started by Steve Holle in comp.dsp16 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 ...


ADI BlackFin 533 Opcode

Started by Ed H. in comp.dsp15 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...


DMA Chaining SHARC ADSP-21369

Started by jjca...@gmail.com in comp.dsp12 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...


MPEG Audio layer 2 for SHARC processors

Started by Anonymous in comp.dsp9 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: ‹...


adsp - 211161N sport i2s mode

Started by puvi in comp.dsp14 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...


Visual DSP++ and ADSP21065L on a virtual COM port?

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

Hi, I'm trying to get Visual DSP++ to identify my SHARC board using a belkin USB -> RS232 adapter. According to the manual, the serial adapter...

Hi, I'm trying to get Visual DSP++ to identify my SHARC board using a belkin USB -> RS232 adapter. According to the manual, the serial adapter creates a "virtual com port" that not all apps are capable of using. Has anyone here had any success running VDSP++ on a virtual COM port? Other notes: The board is identified ok if I use the mobo's legacy port. If I use the belkin adapter, I c