Thanks for the info. That sounds a bit better than the chip replacement
(though I will try that if nothing else works, thanks Crazy Casta).
Did you come across an instruction to follow this procedure? Can it be done
As far as I read this morning about BSL operations, the mass erase deletes
both program and information data. Isn't loss of information data going to
bring me more trouble? :)
On Tue, Nov 22, 2011 at 1:04 AM, Daniel Beer <dlb...@gmail.com> wrote:
> On Sun, Nov 20, 2011 at 02:34:05PM +0100, Kuba wrote:
> > I am new to the list, trying to dive into the world of MSP430 and I
> > already thank you for the great work around mspgcc/mspdebug. Thanks!
> > After playing a bit with the original Launchpad I also purchased the
> > FRAM experimenters board ( MSP-EXP430FR5739 ) mostly because it has
> > lots of outputs/peripherals and onboard accellerometer, so I can
> > extend my play/learntime without making boards myself.
> > However, from start I got an error in programming using mspdebug
> > (newest git version) that the device cannot be erased. I found
> > somewhere else, that this usually ends in the device actually being
> > erased but not responding. A solution was to unplug/replug the board
> > to USB, load the program and run. This worked, though it is pretty
> > annoying to need to replug the board.
> > Any idea what causes an after-erase error?
> > Worse, though, is that after a number of such programming cycles I
> > received a message that the "security fuse is blown (error 30)" which
> > disabled my access to the board alltogether. Problem is, I did not ask
> > for fuse blow (a probably difficult JTAG procedure?) so how on earth
> > could that happen?
> > This all is happening under linux (mint debian edition). If I try to
> > debug the board from Windows (CCS 5.1) I simply get message that the
> > board is not accessible.
> > Is it possible I really blew the security fuse by accident? If so, I
> > guess my only option is to buy a new board, right? Any other way to
> > check for that? (from CCS itself perhaps?)
> Hi Kuba,
> A few people have run into this problem. I'm not sure what causes it,
> but it is recoverable if you access the chip via the bootstrap loader
> and perform a mass erase.
> D.L. Beer Engineering
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