john@anasaz.UUCP (John Moore) (03/01/90)
I have an application that requires some DSP, and also some
embedded control sort of programming (parameter setting, display, etc).
It also requires low cost.
I am currently using a Motorola 68705, which is about the slowest
micro around :-(, but has the advantage of an integrated A/D and
on-board RAM and EPROM. Because of its low speed, I am unable to
do all the DSP processing that I need to do. Also it is truly
an 8-bit machine (not even a 16 bit index register!) with no
hardware multiply, so it is a pain to use!
My questions are:
(1) What do the popular DSP's cost (DSP56000, TMS320C10, TMS320C2x, etc)?
(2) What other DSP's are out there that are low cost or otherwise
interesting?
(3) How about other non-DSP chips? I looked at the Motorola 68HC811A8 and
found out the price was >$600! It does, however, have the speed
needed for my very modest DSP processing. I have also looked at
the Intel 8096 family, and it is really good for what I want to
do, but doesn't have on-board EPROM or EEPROM.
Note that I am interested in either DSP's or high integration
microcontrollers. I don't need really high speed, and would like
high integration (on board memory and A/D), but am curious about
lower integration solutions. 10 bit A/D is sufficient (I'm using 8
now). It would be nice to have DSP math (such as clipping rather than
overflow), and 24 bits, but it is not required. It is required
that the instruction set be sufficiently general purpose to
perform the control and display functions.
--
John Moore (NJ7E) mcdphx!anasaz!john asuvax!anasaz!john
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