I had a FG4618 experimenters board that I accidentally programmed with F2618 code. This caused the board to be no longer accessible via JTAG.
For the solution see: http://e2e.ti.com/support/microcontrollers/msp43016-bit_ultra-low_power_mcus/f/166/p/18632/71831.aspx#71831 Carl On Mon, 2010-05-24 at 17:51 +1200, Andrew McLaren wrote: > I'm using the mspgcc toolchain with a TI USB FET. I've been struggling > to get the toolchain to communicate with a TI MSP-EXP430FG4618 > experimenters board (this is the board with both a 4608 and 2013 > processors). The scenario I have is as follows; > > If I try and attach to either of the processors via their respective > JTAG connectors using msp430-gdbproxy, MSP430_Identify advises that > either it can't access the device, or the device is not supported. > > The same toolchain will happily connect to a 2131 or 439 I've tried it > with (both on simpler header boards). > > The msp430 and hil dll's have been updated to the latest available from > TI. However, I doubt that there is any problem with the specific device > variants, as neither of these is that new. > > Switching the TI FET to an Olimex JTAG interface gives the same results > (still with the mspgcc toolchain). > > I've reinstalled the original IAR software, but this doesn't want to > talk to the board either. Similarly with Olimex's software talking > through the Olimex JTAG. > > This would all seem to imply that the problem is with the experimeters > board itself rather than the toolchain, but this also doesn't gell. This > JTAG interfaces to this board were working about 6 weeks ago. Other > priorities, so it was parked, but now the RS232 interface on this board > would be quite useful. Since then, nothing has been touched with the > Experimenters board, but I've done a lot of playing with the various > toolchains as part of getting the Olimex JTAG working. The 2013 is > definitely running (its got some code loaded that blinks a led > ocassionally). Even if I had somehow managed to damage something, it > seems highly unlikely that it would affect both processors on the board > the same. I'm suspicious that there is something related to the JTAG > interfaces on this board, but that's a real guess. > > I have considered the possibility that I've blown the JTAG fuses, but > again, I'd imagine that it would be hard to do this accidentally, and to > both chips? Its not something I've played with at all. How does a chip > with a blown fuse appear externally? > > Any other ideas or things I could look at? > > Regards > > Andrew > > > ------------------------------------------------------------------------------ > > _______________________________________________ > Mspgcc-users mailing list > Mspgcc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/mspgcc-users
