Quince wrote on Wed, 02 May 2007 22:41 |
Perhaps a DSP to which a new filter can be uploaded is the best option, as then USB1.1 should be sufficient. Any suitable ICs?
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I don't think you'll find a DSP chip with a USB port (NB that I have not done an exhaustive search).
But for easy full-speed USB general-purpose interfacing, I like the
Silicon Labs C8051F32x and C8051F34x devices. Most DSPs should have some kind of port one can use for coprocessor communications (SPI, I2C) which are available on the SiLabs parts.
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I guess my worry about DSP is I don't have experience with them and I'm concerned about the cost of development. Which ones are good choices with that in mind?
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The bad news is that the development tools for most DSP families (TI and ADI) are $$$$. However, both vendors have eval kits with a board featuring a DSP and memory and peripherals, as well as a debug kit and tools limited for use on that board. The TI boards are about $400.
There are a couple of free assemblers for the Moto 56K parts floating around.
-a