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'[PIC] GPL C compiler for PIC'
2007\12\30@131346 by Joshua Shriver

picon face
Is there a GPL/free/open source C compiler for linux for PIC's?
I've heard MPLAB has a free version for windows, but would like to use
C for some PIC programming.
Not that I'm against assembly, but some beefier code I'd like to do in C.

-Josh

2007\12\30@134126 by M Wedin

picon face
Check out SDCC:
http://sdcc.sourceforge.net/

Apparently, there is a bit to go when it comes to Microchip. But there may
be others.



2007/12/30, Joshua Shriver <spam_OUTjshriverTakeThisOuTspamgmail.com>:
>
> Is there a GPL/free/open source C compiler for linux for PIC's?
> I've heard MPLAB has a free version for windows, but would like to use
> C for some PIC programming.
> Not that I'm against assembly, but some beefier code I'd like to do in C.
>
> -Josh
> -

2007\12\30@134140 by Steve Wormley

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On 12/30/07, Joshua Shriver <.....jshriverKILLspamspam@spam@gmail.com> wrote:
> Is there a GPL/free/open source C compiler for linux for PIC's?
> I've heard MPLAB has a free version for windows, but would like to use
> C for some PIC programming.

I use SDCC for that, it seems to work fine for my code.
http://sdcc.sourceforge.net/

-Steve

2007\12\30@134416 by Shawn Tan

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On Sunday 30 December 2007 18:13:45 Joshua Shriver wrote:
> Is there a GPL/free/open source C compiler for linux for PIC's?
> I've heard MPLAB has a free version for windows, but would like to use
> C for some PIC programming.
> Not that I'm against assembly, but some beefier code I'd like to do in C.

Have you tried SDCC? I've found it to be generally quite useful, as long as
you're not trying to run very tight code.

Cheers.

--
with metta,
Shawn Tan

Aeste Works (M) Sdn Bhd - Engineering Elegance
http://www.aeste.net

2007\12\30@134716 by Funny NYPD

picon face
I would recommend PICC and PICC18 from HI-tech. It is a bit expensive, but with the code efficiency and time you saved, it is money well spend. I saw friends using PICC write code for PIC12F508, which only has 512 flash spaces. They seem to be very happy with the code it turns out.

Funny N.
New Bedford, MA
http://www.AuElectronics.selfip.com



----- Original Message ----
From: Joshua Shriver <jshriverspamKILLspamgmail.com>
To: Microcontroller discussion list - Public. <.....piclistKILLspamspam.....mit.edu>
Sent: Sunday, December 30, 2007 1:13:45 PM
Subject: [PIC] GPL C compiler for PIC

Is there a GPL/free/open source C compiler for linux for PIC's?
I've heard MPLAB has a free version for windows, but would like to use
C for some PIC programming.
Not that I'm against assembly, but some beefier code I'd like to do in C.

-Josh

2007\12\30@180453 by David Meiklejohn

face
flavicon
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Yes - HI-TECH PICC does quite well with 12F508 code (but still not as
efficient as hand-written assembler - see my introductory C tutorial at
http://www.gooligum.com.au/tutorials/PIC_Intro_11.pdf for some efficiency
comparisons between CCS, HI-TECH and assembler for some basic digital I/O
tasks).

The best news is that HI-TECH PICC-Lite (bundled with MPLAB) fully supports
the baseline PICs, including the 12F508, and is free!

Of course, free baseline support doesn't help much for bigger PICs...

Regards,
David Meiklejohn
http://www.gooligum.com.au


> {Original Message removed}

2007\12\30@183735 by Bob Blick

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Funny NYPD wrote:
> I would recommend PICC and PICC18 from HI-tech. It is a bit
> expensive, but with the code efficiency and time you saved, it is
> money well spend. I saw friends using PICC write code for PIC12F508,
> which only has 512 flash spaces. They seem to be very happy with the
> code it turns out.

I used to be a fan of it, but I no longer recommend Hi-Tech as it now
uses internet activation, even for the demo and Linux versions. I
deinstalled it and reinstalled an earlier version, and when my support
contract runs out I will not be resubscribing. I managed to get version
8.62 to compile for the 16F884, but I'm looking at other compilers for
future processors. I'll be giving a report to the piclist when I've
completed my tests.

Back to the OP's question, if you want an open source compiler, SDCC is
the project you're looking for.

Cheerful regards,

Bob

2007\12\30@190053 by Xiaofan Chen

face picon face
On Dec 31, 2007 2:13 AM, Joshua Shriver <EraseMEjshriverspam_OUTspamTakeThisOuTgmail.com> wrote:
> Is there a GPL/free/open source C compiler for linux for PIC's?
> I've heard MPLAB has a free version for windows, but would like to use
> C for some PIC programming.
> Not that I'm against assembly, but some beefier code I'd like to do in C.
>

SDCC is the one if you insist on GPL or Open Source. It is still not that mature
for the for PIC12/16/18 even though it is quite good for 8051.
SDCC: http://sdcc.sourceforge.net/

If not, go for the free MPLAB C18 student version and PIC18F. It has no
code size limit and is well supported.

MPLAB: http://www.microchip.com/mplab
C18: http://www.microchip.com/c18
C18 forum: http://forum.microchip.com/tt.aspx?forumid=3

Xiaofan

2007\12\30@203411 by William \Chops\ Westfield

face picon face

On Dec 30, 2007, at 10:46 AM, Funny NYPD wrote:

> I would recommend PICC and PICC18 from HI-tech.

Hi-tech also has a "lite" version that is free, even
for the linux (or MacOSX!) versions.

BillW


'[PIC] GPL C compiler for PIC'
2008\01\01@130653 by Moses McKnight
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I'm surprised I don't see more people mentioning the Sourceboost
compiler.  It is free for personal use with a 2 K code size limit, but
it works for all supported chips - unlike the Hi-tech "lite" which if I
remember correctly is only good for one or two chips.  Sourceboost also
is good about supporting the latest chips, and their prices are
fantastic compared to just about anyone else with free upgrades.  I'm no
compiler guru but all the reviews I've seen from other people say that
it produces as good or better code than Hi-tech, and it stays closer to
C syntax and supports more features than other compilers.  They also now
have a C++ compiler for PIC chips, which I'll probably get and start
using before too long for some larger projects.

Moses

2008\01\01@145739 by Funny NYPD

picon face

It doesn¢t support the 12F508 and the 16F505. Sad.
It may still need more work to challenge the Hi-Tech PICC.
Very good price. It also charge version update fee as did the Hi-tech.

Funny N.
New Bedford, MA
http://www.AuElectronics.selfip.com



{Original Message removed}

2008\01\01@155619 by Moses McKnight

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> It doesn¢t support the 12F508 and the 16F505. Sad.
> It may still need more work to challenge the Hi-Tech PICC.

I hadn't seen that it didn't support those two chips until now, it looks
like it doesn't support as many chips as Hi-tech, but it's better than
some of the other compilers I looked at.  On the other hand, it didn't
support a chip I was wanting to use the other day so I emailed them
about it and they emailed back that they had just added support for it
in the latest version.

> Very good price. It also charge version update fee as did the Hi-tech.

   The price is definitely good!  The Pro license is considerably less
than a support license from Hi-tech, and it includes compilers for both
the pic16 and pic18 lines instead of having to pay another thousand
dollars if you want to use chips from both lines.
   There is an update fee for updating from their previous C2C compiler
to BoostC, but all BoostC 6.x updates are free and have been since
mid-2005.  There is no yearly update fee at all.  From the website: "All
licenses get free minor revision upgrades. That means any BoostC V6.x
license can be upgraded to the latest BoostC V6.x at zero cost.  Major
revision upgrades are chargeable. That means you will have to pay an
upgrade fee in order to upgraded BoostC V6.x license to a BoostC V7.x
license."

I have no relation to the company, just a pleased user.

Moses

2008\01\01@173207 by David Meiklejohn

face
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>> It doesn¢t support the 12F508 and the 16F505. Sad.
>> It may still need more work to challenge the Hi-Tech PICC.
>
> I hadn't seen that it didn't support those two chips until now, it looks
> like it doesn't support as many chips as Hi-tech, but it's better than
> some of the other compilers I looked at.

It's not so much "those two chips" as the whole 12-bit (baseline) PIC
architecture that it doesn't support - which the 12F508 and 16F505 are
examples of.
That's understandable - the baseline PICs only have a 2-level stack,
making it pretty difficult for C compilers to implement function calls -
HI-TECH PICC uses a jump table arrangement to get around the limitation,
but it ends up using a fair bit of memory.  And that's a problem on a PIC
with perhaps only 1k of program memory.  And since using assembler on such
small PICs isn't difficult, there's not much market for C compilers for
the 12-bit PICs, so it's no wonder that Sourceboost doesn't bother
supporting them.

David Meiklejohn
http://www.gooligum.com.au

2008\01\01@181233 by Funny NYPD

picon face

The upgrade fee and support fee on Hi-tech PICC and PICC18 are something we have to explain every time to the boss why this money must be spent. Hope one day there will be a product with a good price and life-time support/upgrade feature.

Funny N.
New Bedford, MA
http://www.AuElectronics.selfip.com



{Original Message removed}

2008\01\01@204400 by Timothy J. Weber

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David Meiklejohn wrote:
>>> It doesn¢t support the 12F508 and the 16F505. Sad.
>>> It may still need more work to challenge the Hi-Tech PICC.
>> I hadn't seen that it didn't support those two chips until now, it looks
>> like it doesn't support as many chips as Hi-tech, but it's better than
>> some of the other compilers I looked at.
>
> It's not so much "those two chips" as the whole 12-bit (baseline) PIC
> architecture that it doesn't support - which the 12F508 and 16F505 are
> examples of.

Uh... what?  I thought we were talking about SourceBoost and BoostC?  I
use those with 12F675 and 12F683 all the time.
--
Timothy J. Weber
http://timothyweber.org

2008\01\01@210844 by John Temples

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On Tue, 1 Jan 2008, Timothy J. Weber wrote:

>> It's not so much "those two chips" as the whole 12-bit (baseline) PIC
>> architecture that it doesn't support - which the 12F508 and 16F505 are
>> examples of.
>
> Uh... what?  I thought we were talking about SourceBoost and BoostC?  I
> use those with 12F675 and 12F683 all the time.

The 12F675 and 12F683 are 14-bit cores.

--
John W. Temples, III

2008\01\01@211521 by Timothy J. Weber

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John Temples wrote:
> On Tue, 1 Jan 2008, Timothy J. Weber wrote:
>
>>> It's not so much "those two chips" as the whole 12-bit (baseline) PIC
>>> architecture that it doesn't support - which the 12F508 and 16F505 are
>>> examples of.
>> Uh... what?  I thought we were talking about SourceBoost and BoostC?  I
>> use those with 12F675 and 12F683 all the time.
>
> The 12F675 and 12F683 are 14-bit cores.

Oh yes, I always forget that 12F != 12-bit.
--
Timothy J. Weber
http://timothyweber.org

2008\01\02@032901 by wouter van ooijen

face picon face
> Uh... what?  I thought we were talking about SourceBoost and
> BoostC?  I
> use those with 12F675 and 12F683 all the time.

Welcome to Microchip's bizarre naming scheme. All 8-pin chips are called
12C or 12F, whether 12-bit or 14-bit core. for instance 12C509 is
12-bit, 12F629 is 14-bit.

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu



2008\01\02@061738 by Tamas Rudnai

face picon face
Yes, but just figured out why 10F is 10 --> 6 pins and 4 IOs so 6+4... :-)
<grin>

Anyway, SourceBoost IDE hangs on my Vista (business edition) :-( Had not got
too much time to figure out why or if there is any solution for that
(setting the compatibility mode to XP SP2 did not help...)

Tamas


On Jan 2, 2008 8:28 AM, wouter van ooijen <wouterspamspam_OUTvoti.nl> wrote:

{Quote hidden}

> -

2008\01\02@075924 by Timothy J. Weber

face picon face
Tamas Rudnai wrote:
> Anyway, SourceBoost IDE hangs on my Vista (business edition) :-( Had not got
> too much time to figure out why or if there is any solution for that
> (setting the compatibility mode to XP SP2 did not help...)

The IDE is nice, but the compiler also plugs in well to MPLAB - so
that's another option at least.
--
Timothy J. Weber
http://timothyweber.org

2008\01\02@085409 by Bob Axtell

face picon face
Timothy J. Weber wrote:
> David Meiklejohn wrote:
>  
>>>> It doesn¢t support the 12F508 and the 16F505. Sad.
>>>> It may still need more work to challenge the Hi-Tech PICC.
>>>>        
>>> I hadn't seen that it didn't support those two chips until now, it looks
>>> like it doesn't support as many chips as Hi-tech, but it's better than
>>> some of the other compilers I looked at.
>>>      
>> It's not so much "those two chips" as the whole 12-bit (baseline) PIC
>> architecture that it doesn't support - which the 12F508 and 16F505 are
>> examples of.
>>    
>
> Uh... what?  I thought we were talking about SourceBoost and BoostC?  I
> use those with 12F675 and 12F683 all the time.
>  
But the ones you use have 8-word stacks, so they are a piece of cake.
2-word stacks leave little for a
C-compiler to work with.

--Bob

2008\01\02@124458 by Andre Abelian

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I have CCS, Hi-Tech, Microchip compilers when it comes the get projects done
always CCS is the winner.

why?
1. Built in functions "ready to use":  not enough time to make one
2. good examples to learn:  this is good for new projects never done it before
3. excellent support:
4. IDE, compiler, demo boards made by same company
5. when it comes to bugs in compiler "they all have no matter how much $$$ you paid".


Andre


{Original Message removed}

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