ReFlash STR9 part with a SD/MMC card

nat · ‎2008-04-08

Posted on April 09, 2008 at 06:12

nat · ‎2011-05-17

Posted on May 17, 2011 at 09:33

Can you reflash a STR9 part in circuit via a SD/MMC card ?

We would like to do this so we can program our device

in the field with a PC.

sjo · ‎2011-05-17

Posted on May 17, 2011 at 09:33

It is possible, an example would be to use bank1 as a bootloader.

This would then read the sdcard when inserted, and write contents of a file into bank0 flash.

efs is a good place to start for an embedded file system:

http://sourceforge.net/projects/efsl

we have just used this in a mp3 project, the str9 sdcard port will be sent to efsl very soon.

Regards

sjo

pm9341 · ‎2011-05-17

Posted on May 17, 2011 at 09:33

I have made a test build of EFSL for BANK1 and I have space problems. My ARM Flash release is about 30,5kB and i must write the bootloader application.

Should i write my own functions rather than STstdlib or should I try to minimize EFSL?