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Questions tagged [blackfin]

Blackfin is a family of 16- or 32-bit microprocessors developed, manufactured and marketed by Analog Devices. The family is characterized by their built-in, fixed-point digital signal processor (DSP) functionality supplied by 16-bit Multiply–accumulates (MACs), accompanied on-chip by a small and power-efficient microcontroller.

Blackfin is a family of 16- or 32-bit microprocessors developed, manufactured and marketed by Analog Devices. The family is characterized by their built-in, fixed-point digital signal processor (DSP) functionality supplied by 16-bit Multiply–accumulates (MACs), accompanied on-chip by a small and power-efficient microcontroller.

http://www.analog.com/en/processors-dsp/blackfin/products/index.html

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c char array copy and concat with formatting leaves off \n and replaces with ÿ

I have a small c program to copy input from an algorithm into a final char array that is then sent over serial (UART) to a raspberry pi. The problem is the last character in the char array is always a latin-1 character of the ÿ (\xff). The sprintf…
bretcj7
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Explaining of Computing square root of two fixed point fractions

I have found that piece of code on blackfin533, which has fract32 which is from -1, 1, its in the format 1.31. I can't get why the pre-shifting is required for calculating the amplitude of a complex number (re, img). I know if you want to multiply…
andre_lamothe
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Writing an equation for complex fraction using blackfin

I'm trying to write an equation of a complexfraction32 which is 32bit. I would like to test for 20% of the value for less than 20% and more than 20% I have a function mult_fr1x32x32 which multiplies the complex fraction by a number. but complex…
Andre
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Cross-compile OPUS codec for blackfin

I have succesfully worked with it on linux setting up a stream between 2 linux pc's. That is straigt forward following the README file for OPUS. Now I need to cross-compile the OPUS-codec for a Blackfin ADSP-BF707 on windows. I have tried to compile…
Baztion
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I am trying to implement Pocketsphinx running uClinux, but I keep getting "Phone is missing in acoustic model" errors

I am trying to run Pocketsphinx on a microcontroller running uClinux, I have installed pocketsphinx on the controller, but I keep getting several different errors regarding acoustic models and definitions. The current one I am facing is: "Phone ...…
A_toaster
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Converting fractions to floating point

I'm trying to convert a fraction to floating point and use it for comparison. but the values are too small and it returns true for the results of the Boolean variables. is my converision correct ? or should I do it in another way which I don't know…
Andre
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