Re: [Fx2lib-devel] FX2 Bulkloop example compiled sized

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If you're developing with SDCC and fx2lib on Windows you may find this
useful:

http://www.makestuff.eu/wordpress/?page_id=343

On Sat, 2009-10-03 at 10:29 +0000, S S wrote:
> Hi Dennis,
> 
> The hex2bix has a parameter -m to specify the size of the memory for
> the target device but that didn't seem to make a difference. The
> format for specifying the size is not given however so I might have
> made a mistake when entering it. 
> 
> Failing that I'll use objcopy (I am on windows just now so I will have
> to swap to linux for this I believe).
> 
> I am away from my desk at the moment but I'll let you know the results
> once I get a chance of playing with all that some more.
> 
> Cheers,
> 
> Sebastien
> 
> 
> 
> > Date: Fri, 2 Oct 2009 09:44:04 -0600
> > From: de...@ub...
> > To: fx2...@li...
> > Subject: Re: [Fx2lib-devel] FX2 Bulkloop example compiled sized
> > 
> > Hi Sebastien,
> > 
> > For me, The files (on Linux) are:
> > 
> > bulkloop.asm: 58K
> > bulkloop.rel 23K
> > bulkloop.ihx 18K
> > 
> > The ihx file size isn't really relevant to the firmware size, the
> most 
> > important thing is the bix size and the iic (for the eeprom) size.
> > 
> > With hex2bix, you probably need to pass in a parameter for the max
> size 
> > or something. What is the command line you are using that is
> showing 
> > you the error?
> > 
> > I haven't really used hex2bix much though since objcopy already has 
> > built in support for ihex files:
> > 
> > objcopy -I ihex -O binary bulkloop.ihx bulkloop.bix
> > 
> > That gives me:
> > bulkloop.bix = 8.7K
> > 
> > ihx2iic.py (from the fx2lib/utils directory)
> > ihx2iic.py bulkloop.ihx bulkloop.iic
> > bulkloop.iic = 5186 bytes
> > 
> > Bix files must be <= 16K to be loadable on the FX2
> > iic files must be <= size of the eeprom. The Cypress dev board has
> a 
> > 16K eeprom. Some boards use an 8K or smaller prom. This iic file 
> > should fit on either size prom.
> > 
> > You might want to make sure your fx2lib is up to date. A while back
> I 
> > pushed a fix to get rid of printf statements in some of the
> libraries 
> > (those can be enabled for debugging but shouldn't be there for 
> > production firmware.) Before that there would be extra functions or 
> > printing included in the final firmware even if you didn't use them.
> > 
> > -Dennis
> > 
> > S S wrote:
> > > Hi Dennis,
> > >
> > > What sizes of .ihx and .iic files do you get using your bulkloop
> example?
> > > I get the following sizes:
> > > bulkloop.asm = 60kB
> > > bulkloop.rel = 24kB
> > > bulkloop.ihx = 21kB
> > >
> > > and the hex2bix firmware returns an error telling me the input
> image 
> > > is too big for output file size Addr = 0x2000, len = 0xe
> > >
> > > The bulkloop example from cypress in comparison is around 2kB and
> it 
> > > does not look too dissimilar to what you have done.
> > >
> > > Any idea on where I might have gone wrong?
> > >
> > > Incidentally what is the command you are using with sdcc for this
> example?
> > >
> > > Cheers,
> > >
> > > Sebastien
> > >
> > >
> > >
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