Thanks Joe! I don't have the clip-ons but of course I could get them. I know the chip has a JTAG interface, but I've only used JTAG with chips that came with a programmer and software :) (except with OpenOCD over parport once, but that was in the stone age).
Another question about the EEPROM dump Elio Corbolante. The chip has a 256Kbit (32KB) EEPROM and the dump is 160K: -rw-rw-r-- 1 tom tom 160K nov 8 2012 FE5680A_EEPROM.bin Which part in this dump is the actual data from the EEPROM? Thanks in advance. Regards, Tom On Fri, Oct 10, 2014 at 12:21 PM, Joseph Gray <[email protected]> wrote: > I don't know how crowded the board is, but I would use an SMD DIP clip > instead of unsoldering the chip. > > Joe Gray > W5JG > On Oct 10, 2014 8:30 AM, "Tom Wimmenhove" <[email protected]> > wrote: > > > I recently came across a thread on this list about undocumented FE5680 > > commands. I have been using a little linux command line tool I wrote > years > > ago for tuning the unit and decided to add these commands to it. > > Since this mailing list was the place I found the unit (someone linked to > > an ebay seller) I figured I' d join the list and throw it on here :) > > http://www.tomwimmenhove.com/otherstuff/fe5680-0.2.tgz > > > > Now, the bad news. I had my unit running overnight while logging the > serial > > command output that reads the ADC, and in the morning it was no longer > > locked. The 10MHz signal disappears about 5 seconds after power-on, and > > programmed offset was somehow reset to zero (it had been set to -645). So > > it appears as if the internal EEPROM has been corrupted. > > I read a post from Elio Corbolante where he posted EEPROM and firmware > > dumps. Anyone have any idea on how to re-write this firmware back into > the > > EEPROM by hand (would this be possible through JTAG, or do I actually > have > > to solder the chip out of there? :) ) Or maybe there's someone willing to > > sell their broken unit I could take the chip out of? > > > > Regards, > > Tom > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
