On 1/23/06, John Doty <[EMAIL PROTECTED]> wrote: > > On Jan 23, 2006, at 8:21 PM, Hal2000 wrote: > > > I dunno - the ARM seems kind of cool. If it can't handle the DSP I > > need, my backup plan is to put it into an FPGA. Oh yeah, there's > > an ARM ref board, but it costs $450 (although I can get a loaner > > for 30 days). The Blackfin has an eval board for $150. I'm def. a > > cheapskate, so I like the blackfin board - but I'm not letting that > > make my mind up. > > Lots of different ARM eval boards around. I've been playing a little > with an Atmel AT91EB40A ($198 from Digi-Key). Unfortunately the > customer has, for the moment anyway, lost interest in that line of > development...
bear in mind that the EB40A processor has an ARM7 core (no MMU, and probably not enough on-board memory to run uClinux). To get an MMU, you need an ARM920T or better. I vaguely recall that the Blackfin has basic memory protection, similar to the MPU on an ARM940T. It's probably enough to protect against stray null pointers and other common shoot-yourself-in-the-foot techniques. A couple of years ago, ARM reference literature started referring to cores that had Java bytecode support. Have any of you seen an actual production processor that has this, or a JVM that can take advantage of it? Just curious... -- - Charles Lepple
