Lpc2000

Joel Winarske wrote:

>Hi Tom,
>
>What is the RAM/ROM footprint of your example code?
>
>  
>

Turning off the HAS_MMC in the include/config.h gives:

-rwxrwxr-x  1 tom tom 24076 Nov 17 15:34 main2138.bin*

With HAS_MMC turned on:

-rwxrwxr-x  1 tom tom 34044 Nov 17 15:36 main2138.bin*

This is not an accuate test of size though.  However, it does give a 
rough idea of how much larger the code will grow including the: module 
driver, newlib stubs, mmc hardware drivers, and RDCF2 sources.  So what 
are we, 9..10K additional code for an MMC FAT filesystem?

RAM is dependant upon how many file buffers you choose (MaxFileBuffers), 
it appears that each file buffer takes at least 1K.  I have not looked 
very closely at how newlib is alloc()ing memory on the heap.  So far, 
newlib is heap-ing about an additonal 12K, but that is not all file related.


To me, that is worth spending as the host processor is an LPC2138 (512K 
of Flash).

Regards,

TomW


-- 
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
----------------------------------------------------