EngineerZone Forum
Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (971 topics).
971 topics · 3273 messages
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SPI slave mode work incorrectly, need example code
I am trying to work out an example that can establish data link between BF518 and another chip via SPI. 1) BF518 SPI0 work in slave mode, the other chip is SPI master. 2) SCK is input to BF518, about
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Begin loader routine
Hi, I want the ___lib_setup_c code runs from internal memory, which compilation or linking option I have to set ?
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DSP Vocational Course
Hi, I have been tasked to produce an undergraduate vocational unit for inclusion in our electronic systems course. I will starting from no course notes and no hardward and a limited budget. The last t
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About input section in DSP memory allocation
Hi, I am new to DSP, currently I am learning how to allocate sections in DSP memory using section directives, but I am confused with the definition of input sections and output sections,I know the lin
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Implementing AGC algorithm in BF527 DSP processor
Hello Sir, We have chosen Black fin Processor BF527 for implementing AGC and TVG algorithm. It is having 600MHz frequency of operation. Is it possible to give 16bit parallel digital data to BF527 thro
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Suggest DSP Processor for AGC/TVG algorithm implementation
Hi, I need to implement Automatic Gain Control (AGC) and Time Varying Gain (TVG) algorithm in a DSP processor. I am getting 16 bit parallel digital data to my card with 31.25Ksps. I need to do above a
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Setting ADV7392 to PAL Square Pixel does not display color
Hello everyone, I’m trying to get color picture on screen using the default color bar setting for PAL Square Pixel. (The ADV7392 have an internal test pattern generator which generates color bar on sc
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How many devices can I drive with each of the processor’s outputs?
I sometimes get a question like how many SDRAMs can I connect to the processor? Can I use SDRAM modules? Or, why is there no fan-out ratio (maximum number of inputs driven by 1 output) in the datashee
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HDMI to RGB using ADV7441 and ADV7125
Hi, I'm trying to convert HDMI to RGB using the ADV7441 and ADV7125. From the .pdf i found online, it's a little hard to understand whether or not any microcontroller is implied or I can simply plug i
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Can Analog Devices help with my processor EMC / EMI test results?
From time to time we are asked if ADI can help with EMC issues in their SHARC or Blackfin final product. This is a discussion thread that will allow others to enter comments and questions. emi emc emi
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Kalman Filter for Laser Rangefinder
I must be missing something. I passed 128 records of 1300 samples each (1300x128) through a Kalman Filter (This is basically a laser return signal - often times quite small- buried in solar noise gene
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Analog Devices 14 Bit ADC (AD9640BCPZ-150) Distorted Sampled Output
Hi Friends, I have designed a board which has AD9640BCPZ-150 analog to digital converter from Analog Devices. This ADC is interfaced to a Spartan3AN FPGA. The ADC is seemingly producing distorted outp
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ADV7184 I2C Programming Example
Hello, I've been looking around for an example of I2C programming for setting up the ADV7184. In the datasheet it says: A register programming script consisting of I2C programming examples for all sta
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Detection of Digital-RF Signals - How?
I have a 418 Mhz carrier (from a non-ADI transmitter chip Mfg) digitally modulated with a digital data stream at less than 5 Khz. The modulated carrier "chirps" about 3 times per second, with each chi
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Question on DSP selection for my ANC design.
Dear forums; I am currently designing an Active Noise control products that reduce annoying unwanted noise outside a noisy electronics equipment (i.e a fridge , air conditioning system ,hair dryer and
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ADSP2101 Double Precision
I have part of a filter below and would like to convert this to double precision.. Any help??? startDemph: > > CNTR = ar; /* load counter */ > > DO to_lrs UNTIL CE; /* loop until count expires, end >
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ADSP2101 Design Example needed
hi, I would like to have an example design that someone out there has done. I would like a simple filter example that shows how to go from H(s) transfer function, simulate it in mathcad/matlab, find t
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How much inrush current (startup current)?
Several customers have asked about startup current recently. How much inrush current is expected during power up for the ADSP-X processor? inrush voltage_regulator startup_current current regulator
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need help for choosing DSP-development boards
Hi to all! i'm new here and i really need help for my project... so i have a DSP-project from my professor for analyzing an analog signal.. the analog signal is about 5-10 MHz the AD Converter should
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Theory: Continuos FT and DFT
Hi. I can't find a place to discuss on theory. So, i decide to post it here. Hope that anyone can answer for query.. FYI, i read the Understand Digital Signal Processing.pdf Background: From the book,
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MJPEG solution ?
This thread would be better placed in the Software Modules, Starter Kits and Software Development Kits category, and has been moved here:MJPEG solution ? thank you.
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Help needed for Development Board selection...
Hi, Iam searching for a devolopment board for my project. It requires the following features : Dual DSP core 3U cPCI backplane support Ethernet interface Serial interface JTAG interface for debugging
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Component Weights
Is there a list of component weights with their part number or dscc number? Thanks!
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ADV7184 Video Decoder Schematic
Hello, I have a question about the 'typical circuit connection' on page 111 of the ADV7184 data sheet. On the schematic it shows the ELPF pin (near bottom right of chip) connected to 'PVDD' via two ca
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ADV7184 Video Decoder Schematic
Hello, I have a question about the 'typical circuit connection' on page 111 of the ADV7184 data sheet. On the schematic it shows the ELPF pin (near bottom right of chip) connected to 'PVDD' via two ca