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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Re: Software and engineering posted by Soundmind on November 18, 2006 at 07:19:52:
"Likewise, may DSP circuits may use what was called 'hard wired logic' on one coast and 'firmware' on the other which is to say no software set or it may use programmable software. The programming in firmware was built into the electrical circuit itself, often using boolean algebra, not computer programming."This is not correct.....
DSP uses real source code. A DAC for CD playback, for example, uses code which convolves the input signal with a mathematically-depicted impulse response (FIR filter), and sends an output is mathematically-precise data of greater word length and sample rate. The executable may be permanently burned into a chip's ROM, but it's still code that is written, debugged, refined, compiled, and linked.
Firmware is software downloaded to programmable ROM within a chip or on a circuit board, and is what enables a self-contained circuit to run without the use of an external disk drive or additional software. And firmware is upgradeable. The firmware on CD ROM drives is often updated. And again, it starts as source code.
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Follow Ups
- Re: Software and engineering - Todd Krieger 19:10:48 11/20/06 (1)
- Re: Software and engineering - Soundmind 02:35:24 11/21/06 (0)
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