doragasu wrote:TI DSPs are really easy to use. They can be coded using C/C++ and there are free libraries available to use their peripherals. You'll need to learn assembly language if you want to extract all the juice of the DSPs, but I suppose C is enough for most tasks.
It would be useful to know an estimation about the MIPS/MFLOPS and the amount of RAM required for the processor.
Yeah, I suppose the TI DSP isn't too bad... it at least has decent tools available. I imagine you'd use something like this
- it uses an external rom and has 128KB of internal ram. It also uses a flat package instead of the more common (and harder to solder) BGA package.
$14 in single unit quantities from DigiKey isn't bad as far as price goes. That's the cheapest external rom TMS DSP DigiKey carries. They have cheaper DSPs, but they're all internal rom. I need to get a few datasheets on them... I assume those are programmable roms, not mask roms?
Or maybe you were thinking something like this
? This one is more like the SVP... a 16-bit DSP with not much else. It is 5V, though, which might make it easier to work with.
Looking at the SuperH chips, you have this
. The first has a 16-bit external bus, while the latter has a 32-bit bus. Oddly enough, the 32-bit bus part is cheaper. Both are romless and have 8KB of internal RAM.