Re: [Fx2lib-devel] bulkloop example crashing FX2?

[Aric M. <as...@pu...>]

The problem comes down to the fact that the FX2 only has 8KByte RAM, and 
the FX2LP(which you have) has 16KByte RAM.  So I've got it working as 
long as I tweek the settings in the Makefile and keep things small.

A bit of a noob question: How can I make use of the external RAM to 
overcome this shortage?  I'm kind of at a loss as to the command line 
options to use with SDCC in order to describe my hardware.  My board 
currently has 0x0000-0x1FFF mapped to internal RAM and 0x2000-0xFFFF 
mapped to external RAM.
If I have:
CC = sdcc -mmcs51 --code-size 0x1800 --xram-loc 0x2000 \
     -Wl"-b DSCR_AREA = 0x1800" \
     -Wl"-b INT2JT = 0x1A00"

Then everything works fine, but that gives me little space for code.  
How do I change this to put my code/data into the external RAM and 
execute it from there?

Many thanks,
ASM