[sdiy] ARM thru-hole options - was Propeller CPU

[Scott Gravenhorst]

Had you looked at the number crunching ability of the dsPIC from Microchip?  

The dsPIC is a 16 bit processor which also can have built in goodies like ADC and DAC,
UARTS, timers, etc.  Up to 40 MIPS.  Through hole is available too.

nicolas <nicolas3141 at yahoo.com.au> wrote:
>I have also been recently experimenting and learning on AVR 8bit, 
>but looking to move to something with more number crunching 
>ability. ARM seems to be the way to go - affordable, plenty of 
>tools, plenty of community support, reasonable amount of grunt, 
>lowish power consumption. There are quite a few 
>through-hole-adapter/low-end-development-boards that have the 
>right cost/convenience for my needs. Some examples among many: 
>
>http://mbed.org/order/
>- Not super cheap, but lots of hand-holding available online to 
>get me started (a-la arduino), USB plug and play (cable 
>included), it all seems to just work so far (but I haven't tried 
>to do anything serious with it yet). Excellent convenience for 
>experimenting, learning, initial development. 
>
>http://www.futurlec.com/ET-ARM_Stamp.shtml
>http://www.futurlec.com/ET-STM32_Stamp.shtml
>- Seems like good value, but ordering from futurlec does require 
>patience. RS232 type interface rather than USB so not ideal for 
>modern laptops and it requires its own power supply so not quite 
>so convenient as a development platform. I just received one of 
>the STM32 boards the other day, comes with a CD of free tools and 
>a serial cable, but I haven't had a chance to put it to any use 
>yet. 
>
>http://www.embeddedartists.com/products/lpcxpresso/lpc1768_xpr.php
> - Another low cost option I haven't tried, hard to find in-stock.
>
>Cheers,
>Nicolas
>
>
>--- On Mon, 20/12/10, Antti Huovilainen <antti.huovilainen at iki.fi> wrote:
>
>> From: Antti Huovilainen <antti.huovilainen at iki.fi>
>> Subject: Re: [sdiy] Propeller CPU
>> To: lanterma at ece.gatech.edu
>> Cc: synth-diy at dropmix.xs4all.nl
>> Received: Monday, 20 December, 2010, 10:05 PM
>> On Mon, Dec 20, 2010 at 10:40
>> AM,  <lanterma at ece.gatech.edu>
>> wrote:
>> > On Dec 19, 2010, at 5:13 PM, Paul Maddox wrote:
>> >
>> >> So I'm looking at the parallax Propeller CPU, nice
>> because it's available in DIL format, but also very nice
>> cause it's lots of raw power for number crunching.
>> >>
>> >> So I just wondered if anyone had used it, with
>> MIDI or for synthesis and what they thought of it.
>> >
>> > Paul, you read my mind - I've spent some time over the
>> past couple of days reading over material on the Propeller,
>> wondering the exact same thing, and was about to post asking
>> about it!
>> 
>> I haven't used Propeller, but I did look into it about a
>> year ago. My
>> conclusion was that it's largely useless unless you need
>> simple timing
>> logic in a dip case. For simple mcu applications, avr and
>> pic have it
>> beat hands down. For number crunching, ARM7 is an order of
>> magnitude
>> faster (and can be had in a dip adapter). All three
>> architectures
>> allow using higher level language, such as C.
>> 
>> Propeller would have been interesting if it had been out
>> in, say,
>> 1995. Today it's hopelessly outdated while lacking the
>> cheap cost,
>> simplicity and huge existing codebase of 8 bit mcus.
>> 
>> Antti
>> 
>> "No boom today. Boom tomorrow. There's always a boom
>> tomorrow."
>>  -- Lt. Cmdr. Ivanova
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>> 
>
>
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-- ScottG
________________________________________________________________________
-- Scott Gravenhorst
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