Thanks Frank, it seems like it's time to take the covers off and figure out what I've got.
On Sat, Oct 26, 2019 at 3:38 PM Frank Stellmach <frank.stellm...@freenet.de> wrote: > Didier, > > if you have the old board with DALLAS RAMs: > > - make a dump of the CALRAM into a file, as Poul-Henning explained > - buy the 2kB and 2x 32kB DALLAS RAMs, available from several distributors > - DS1220AD-120+ for about 11$/€ and DS1230Y-150+ for about 22$/€ will > do the job > - unsolder the old RAMs, and solder precision DIL sockets instead > - use a programmer like the TL866 to first make an additional download > from the RAM directly > - program the content of the old CAL RAM to the new 2kB one, and insert > all three new RAMs, maybe add these four 32kB RAMs for additional data > buffer > > Alternatively, you can replace the nvSRAMs by FRAMs, description > somewhere in eevblog, or at TiN > > if you have the new board with the SnapHat batteries, you can't upload > the RAM content again, but: > > - buy 2 SnapHat battery replacements > - switch on the instrument > - remove the old batteries > - insert the new batteries, I would support the PCB with something like > isolated plastics, due to heavy bending forces > > video and description at M. J. Lorton (not competent at all, but > instructive) > > Frank > > > _______________________________________________ > volt-nuts mailing list -- volt-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/volt-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ volt-nuts mailing list -- volt-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/volt-nuts_lists.febo.com and follow the instructions there.
