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ADSP 21262

Started by Juan Pablo Ugarte in Analog Devices DSPs14 years ago 3 replies

Hi, I'm new working with DSPs of the Analog Devices, I have an ADSP 21262. How can I load a program in the chip? Do I need an extra circuitry to...

Hi, I'm new working with DSPs of the Analog Devices, I have an ADSP 21262. How can I load a program in the chip? Do I need an extra circuitry to do this? I have an Sigma Delta Analog Digital Converter AD7716. I planning use this AD7716, but how can I interfacing dthe AD7716 with the ADSP 21262? If you can send me an circuit, It woul be better. Thanks ing_jpu _____________________________...


loading data into SDRAM

Started by s.mo...@gmail.com in Analog Devices DSPs14 years ago 4 replies

Hi, I am using ADSP21369 and I am able to write and read from SDRAM (MT48LC4M32B2 128MB). I have few questions and will be grateful if...

Hi, I am using ADSP21369 and I am able to write and read from SDRAM (MT48LC4M32B2 128MB). I have few questions and will be grateful if anyone could help 1) My SDRAM is connect to bank 0. At the moment I am giving the SDRAM start and SDRAM size as #define SDRAM_START 0x00200000// start address of SDRAM #define SDRAM_SIZE 0x00100000// size of SDRAM in 32-bit words.(i.e. 1M x 32) I...


disassembly prob vdsp++3.5

Started by sous...@gmail.com in Analog Devices DSPs14 years ago 1 reply

i ran a 4-point fft prog in vdsp++3.5 version.. while building the file and targets i didnt get any errors... it was successful.but couldn't find...

i ran a 4-point fft prog in vdsp++3.5 version.. while building the file and targets i didnt get any errors... it was successful.but couldn't find the prog in disassembly window.can u help me find out what the error was?


ADSP21161N SPI issue

Started by cron...@ananzi.co.za in Analog Devices DSPs15 years ago 2 replies

Hi All, I have read the previous posts stating that SPTINT and SPRINT need to be initialised to work as well as requiring a dummy read for every...

Hi All, I have read the previous posts stating that SPTINT and SPRINT need to be initialised to work as well as requiring a dummy read for every write but my SPI still seems to not be working. I am trying to program the AD1836 codec through SPI on my ADSP21161N EZ KIT Lite, has anyone managed to do this before? I cant use the SPI emulation with the SPORTs in my application so I require SPI. Analo...


biquad filters..!!!

Started by aliu...@hotmail.com in Analog Devices DSPs15 years ago 1 reply

I have an FRS demo model,..on receiver side there is decimation and filtering , for that Biquad Direct Form 2 SOS filters have been used, i am...

I have an FRS demo model,..on receiver side there is decimation and filtering , for that Biquad Direct Form 2 SOS filters have been used, i am unable to understand its working :( and after decimation , channelizer block with IIR biquad filters is used...these models are in made Simulink using System Generator blocksets,...can anybody kindly help me in understanding them ,...and secondly what exac...


ADSP-21369 Simulator - PC Stack Underflow

Started by ken....@harman.com in Analog Devices DSPs15 years ago 3 replies

I'm having similar issues trying to simulate an ADSP-21369 mixed C++ and asm program using VisualDSP++ 4.5. When calling my assembly routine...

I'm having similar issues trying to simulate an ADSP-21369 mixed C++ and asm program using VisualDSP++ 4.5. When calling my assembly routine from a C++, the disassembly shows that the compiler translated this into a cjump. However, this action apparently is not pushing the PC return location onto the PC stack during the call. So when the assembly routine has completed and the program hits the...


Increasing the tap size of FIR filters

Started by keeg...@gmail.com in Analog Devices DSPs15 years ago 1 reply

Hi experts, I am currently implementing various filter algorithms for AEC for my FYP onto EZKIT BF533. However, I need to increase my tapsize...

Hi experts, I am currently implementing various filter algorithms for AEC for my FYP onto EZKIT BF533. However, I need to increase my tapsize to 1024 (currently, it's at 64). my prof said that it might be due to the processing time being shorter than the sampling period. Can anyone guide me along? I am quite bad at processing time. Thanks


Sharc (non-Tiger) LINK Ports

Started by "Wachob, Chip" in Analog Devices DSPs15 years ago 2 replies

Hello, I've been a long time reader of this forum but have never posted before. I have a question out there for you folks that are using...

Hello, I've been a long time reader of this forum but have never posted before. I have a question out there for you folks that are using the Sharc parts, not the Tiger Sharc parts. I'm trying to come up with an efficient and straight-forward way to get a group of Sharc processors to talk together, and with a host (host interface 32-bit). In total there are six Sharc processors ...


FFT and ifft with block exponent

Started by steh...@hotmail.com in Analog Devices DSPs15 years ago 3 replies

I am trying to take fft of an audio signal. The buffer length is 1432, so I take 3 FFTs of 512 length each, padding zeros for last execution. This...

I am trying to take fft of an audio signal. The buffer length is 1432, so I take 3 FFTs of 512 length each, padding zeros for last execution. This is just the start so I am taking FFT and then IFFT and play the audio. The problem is that I am not able to get the sound back. The is rhythemic sound in the output. The noise is so high that I am seldom able to hear the original audio, but it is there....


Power Supply design........

Started by mall...@yahoo.co.in in Analog Devices DSPs15 years ago 2 replies

HI! I don't know i can ask this question or not here.... Actually we have a design based on BF532 which contains USB,Ethernet,VIDEO, audio and...

HI! I don't know i can ask this question or not here.... Actually we have a design based on BF532 which contains USB,Ethernet,VIDEO, audio and other additional peripherals.... we want to design the power supply for the board.... I am new to the power supply design.....i don't have any support in this regard.... i have seen the electrical specs in the datasheets, in that i have seen di...


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