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

[S S <ss...@ho...>]

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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