Are you using -mdisable-watchdog, or otherwise stopping the watchdog from
resetting your board 32ms after power-up? The current msp430 toolchain does
not do this automatically like the old one did.
Peter
On Thu, Sep 29, 2011 at 11:12 AM, steve ayer <a...@handhelds.org> wrote:
> hi folks,
>
> last summer (july 2010) i bought a ti eval board for the 5438 and
> proceeded to pull together and test the dirt-simple devel pieces before
> proceeding on to trying to work with tinyos on this mcu.
>
> short story is that is used the then-current mspgcc4; wrote my own bsl
> so that i had a boilerplate for modding tos-bsl to support this mcu;
> wrote a ~25-line blink in c to test it.
>
> result: i could compile, objcopy -> ihex, bsl, and execute blink on the
> little eval board. nothing elaborate or fancy:
>
> msp430-gcc -mmcu=msp430x5438 -o blink.exe blink.c
> msp430-objcopy --output-target=ihex blink.exe blink.ihex
> bsl /dev/ttyUSB0 blink.ihex
>
> happiness, now i could try out real stuff. then i got sidetracked until
> now.
>
> following all of work of peter bigot, eric decker, razvan, et. al on the
> uniarch toolchain, i pulled the latest assembled bits (most easily from
> tinyprod.net, thanks guys) and went back to step one.
>
> after the requisite header/prototype changes to blink.c, everything
> seems to work properly, except that the code doesn't run. (yes, i can
> install the old ihex and make the board blink again).
>
> a quick comparison of the working ihex file with the new one i see that
> they're vaguely similiar, the addresses/sizes of the code/vectors seem
> right, but...
>
> i did try adding the -mcpu=430xv2 flag to the compile line, but that
> makes no difference in the ihex.
>
> can anyone please offer a pointer on how to proceed?
>
> thanks,
>
> steve ayer
>
>
>
>
>
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