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PIC24 and PCD designs

 
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kevcon



Joined: 21 Feb 2007
Posts: 142
Location: Michigan, USA

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PIC24 and PCD designs
PostPosted: Thu Jul 26, 2007 7:27 am     Reply with quote

Is anyone looking at or has done a design with a PIC24?

I'm looking for a bit more horsepower and functionality than the PIC18’s and I'm wondering if you found it was worth the transition.

Kevin
libor



Joined: 14 Dec 2004
Posts: 288
Location: Hungary

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PostPosted: Fri Jul 27, 2007 10:41 am     Reply with quote

Let's bring this topic up:
I am very much 'looking at'. ...though I am also looking at learning the DSP capabilities of the PIC30, 33 series.
Laurent Chouinard



Joined: 12 Sep 2003
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PostPosted: Fri Jul 27, 2007 10:45 am     Reply with quote

kevcon: I am looking at it, but may move to Freescale's Coldfire v2 series due to lack of a compiler for pic24. (I have yet to evaluate the available compilers for coldfire, as I may be just as disappointed. We're spoiled here with CCS, although I suspect CodeWarrior to be in the same level of tightly integrated peripheral routines)
kevcon



Joined: 21 Feb 2007
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Location: Michigan, USA

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PostPosted: Mon Jul 30, 2007 7:35 am     Reply with quote

I’ve used Code Warrior tools for Freescale parts before and they are awesome. They can be a bit pricey though, which makes for a tough sale to the big boss on a low volume / low cost product. Smile
Laurent Chouinard



Joined: 12 Sep 2003
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PostPosted: Mon Jul 30, 2007 7:48 am     Reply with quote

kevcon: That is exactly why I'm using CCS at the moment. Great product at a very low cost.
SET



Joined: 15 Nov 2005
Posts: 161
Location: Glasgow, UK

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PostPosted: Mon Jul 30, 2007 9:01 am     Reply with quote

CCS have just announced support for PIC24.
Two things against the PIC24/33 - power consumption (I think the smaller geometry parts are better though), and as far as I can see no external memory bus - RAM space is often a problem rather than Flash.
Laurent Chouinard



Joined: 12 Sep 2003
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PostPosted: Mon Jul 30, 2007 9:06 am     Reply with quote

SET: In my case, flash is a big limitation. I've hit the ceiling of my 128KB flash PIC, and the biggest pics they make are 256KB of flash, either in PIC24, PIC30 or PIC33...
libor



Joined: 14 Dec 2004
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PostPosted: Mon Jul 30, 2007 9:46 am     Reply with quote

Laurent Chouinard wrote:
I've hit the ceiling of my 128KB flash PIC

There's an external memory interface for up to 2 Mbytes of external code or data on the 18F8xxxx series: AN869 application note. I've never used it, but you might want to have a look at it.
Laurent Chouinard



Joined: 12 Sep 2003
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PostPosted: Mon Jul 30, 2007 9:51 am     Reply with quote

libor: Maybe, but generally I tend to avoid external ram or rom and it complicates things unnecessarily (emulator support? external flashing from ICSP? etc)

Instead of upgrading my platform with external ROM, I'd rather upgrade my platform for something more powerful.
bwhiten



Joined: 26 Nov 2003
Posts: 151
Location: Grayson, GA

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Stirring this up again
PostPosted: Thu Aug 09, 2007 7:24 pm     Reply with quote

Any updates on PIC24 compile issues? Anyone using PCD successfully?
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