Lockup problem with MSP430F4618 chip

Development Boards MicroMod
1

My project uses a MSP430F4618. The design is quite simple. We pretty much

copied from the reference design downloaded from TI website except that

we did not have the LCD attached.

The problem is that once in a while the board would lock up when the power is removed and then restored. Manually reset does not work either.

I am able to download the code (the known working code) to the chip , and it seems to

program properly, but the board does NOT start to run when clicking the GO button !!!

Re-compile the code and then download to the chip again sometime work and sometime don’t.

I suspect it that clock module does not config properly. Once it works (with debugger attached)

it will continous to work flawlessly.

Does any body in this forum experience such problem? perhaps, the experts

in this forum please help me.

Thanks in advance,

JIMMY

2

sounds like a potential clock issue… are you using an external clock or just the default clock settings??

I would configure the clock output pins and the beginning of the code and see if they get activated… if you are using a 32khz clock crystal remember it can take a while to properly start up…