BASIC SHARC HELP.

Started by paul...@btinternet.com in Analog Devices DSPs7 years ago 1 reply

Hi, I'm new to DSP programming - though I have experience in assembly programming of micro-controllers. I have a Analog Devices AD-21479 SHARC...

Hi, I'm new to DSP programming - though I have experience in assembly programming of micro-controllers. I have a Analog Devices AD-21479 SHARC EZ-KIT, and I'm trying to program an audio pass-thru using the boards SPDIF In and OUT connectors. I'm using the on-chip SPDIF receiver to take my incoming SPDIF input stream from the SPDIF input socket, and feeding this on to the SPORT 0 serial in. Simi...


Re: total cycle count and delay in speech (blackfin) (rotate)

Started by ronn...@ada-systems.com in Analog Devices DSPs8 years ago

Regarding the rotate with CC in Blackfin ... think of it as an extra '33th' bit. Asume we do a rotate left : you would expect from a true...

Regarding the rotate with CC in Blackfin ... think of it as an extra '33th' bit. Asume we do a rotate left : you would expect from a true rotate, is that the bit31 becomes bit0, bit0 becomes bit 1, ... However with Blackfin, bit 31 goes into CC, and CC goes into bit 0, bit 0 goes into bit 1, ... (check prog ref manual) suppose you have r0 = 0x1234567, and you need to move these contents to ...


Interfacing AD1938 with Blackfin through SPI.

Started by yegn...@gmail.com in Analog Devices DSPs8 years ago 2 replies

Hi all, I am using a board in which the AD1938 codec is interfaced with blackfin through SPI. I tried to configure the CODEC's registers through...

Hi all, I am using a board in which the AD1938 codec is interfaced with blackfin through SPI. I tried to configure the CODEC's registers through SPI port, but I am unsure that I made a SPI write on to the intended register of the codec. So I tried reading the codec's register, and I always receive the bit '1' from the MISO pin of the codec(DSP's SPI is master and CODEC is slave). Anyone help me i...


Can I use 40-bit float in a C program?

Started by ghostzhou_2000 in Analog Devices DSPs8 years ago 5 replies

Hello every noe, Can I use 40-bit float in a C program? I use ADSP21060. I'm sorry for asking this question twice just now,But have not get any...

Hello every noe, Can I use 40-bit float in a C program? I use ADSP21060. I'm sorry for asking this question twice just now,But have not get any reply. I think it's beacause I did't join the group on that time. So, if anybody knows the way, please tell me again. Your help will be much appreciated.


DSP

Started by Braham in Analog Devices DSPs8 years ago 2 replies

Hi, i have a project to program on DSP blackfin (cordic), i am a debutante in DSP i didn't found many things on the net to learn the language. I...

Hi, i have a project to program on DSP blackfin (cordic), i am a debutante in DSP i didn't found many things on the net to learn the language. I need your help for me first step: some documents or links could be very helpful :) Thx


EZ KIt 21369

Started by Franck Vdb in Analog Devices DSPs8 years ago

Hello, I m newbie in DSP. I have EZ Kit 21369 and I try to add an amplification in the example Talkthru Analog In-Out (ASM). The code...

Hello, I m newbie in DSP. I have EZ Kit 21369 and I try to add an amplification in the example Talkthru Analog In-Out (ASM). The code of example : #include .section /pm seg_pmco; .global _talkThroughISR; _talkThroughISR: r10=dm(RXSP0A); // Read new left sample from ADC dm(TXSP1A)=r10; // Write to DAC1 dm(TXSP1B)=r10; //


Image processing methods testing using MATLAB

Started by "koe...@rocketmail.com" in Analog Devices DSPs8 years ago 2 replies

Is MATLAB the only good program available for image processing? ARe there any other programs that are just as good but also possibly...

Is MATLAB the only good program available for image processing? ARe there any other programs that are just as good but also possibly cheaper? Thanks.


BF518f - Reading and writing to the SPI FLASH and to the on-chip FLASH

Started by Chagai Ensenberg in Analog Devices DSPs8 years ago 1 reply

Hi, My application boots from the external flash. then is runs for a while and aquires and generates some data. Then it goes back to sleep for...

Hi, My application boots from the external flash. then is runs for a while and aquires and generates some data. Then it goes back to sleep for a while. When it wakes up again (reset), I need the program to reboot but this time of course it has to retreive the data from its last operation too. I know how to boot from the flash - when using the vdsp. but how do i save some data on the no...


How to read data from FIFO without address bus

Started by lake...@gmail.com in Analog Devices DSPs8 years ago 5 replies

Hi there: I have a design with ADSP21369 reading data from FIFO connected via EMIF. The FIFO I am using comes without address bus. The full flag...

Hi there: I have a design with ADSP21369 reading data from FIFO connected via EMIF. The FIFO I am using comes without address bus. The full flag of FIFO is connected to the IRQ of ADSP to trigger the reading. I am not sure about its memory mapping. I guess I still need the Msx to select the memory. But how to mapping the memory if there's no address bus on FIFO and how can I control the data flow...


PWM code for VDSP++

Started by ash3...@rediffmail.com in Analog Devices DSPs8 years ago 1 reply

I am engeged with the hardware coding of Blackfin BF537 in embedded C using VisualDSP++ compiler/assembler. The first motive of my project is to...

I am engeged with the hardware coding of Blackfin BF537 in embedded C using VisualDSP++ compiler/assembler. The first motive of my project is to write the processor specific C code to produce PWM waves to drive DC motors. kindly help me with the code. Thanks in advance.


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