Electronics > Repair
TDS3014 adventures
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rauldm:
I changed battery to nvram in a TDS3014b, ethernet configuration is not work today, i clear nvram with trig b and I go to devel mode with select button to start, this cleared hours, power on counter and errors, but ethernet still Is not working.
sicco:
That’s consistent with what i wrote in my earlier posts in March. It can be fixed. Load the binary images as provided in those posts  into your DS1742.

The ‘TDS3000 second life light’ plugin boards that i made enable in-situ DS1742W editing from a PC over USB.
If you find my ‘second life’ boards too expensive then desolder the DS1742W NVRAM ic from the tds3014b mainboard and get an old style DIP24 eprom programmer that programs/writes 3.3V DIP24 chips like the DS1742W.

I have seen no options yet for editing the DW1742W in-situ via GPIB or RS232 or printer port.

(ps the ‘second life boards’ also have board space for a DS1744W that can take over the role of the old DS1742 that can stay on the main board - but right now you don’t need this. All you need now is an easy way to edit the DS1742 that you’ve revitalised with a new battery. The second life boards with BDM interface provide that)
james_s:
IIRC it is possible to write to memory locations via GPIB, but I have no idea where the NVRAM sits in the address space.
sicco:
It’s at byte address 0x02800000 of the PowerPC physical memory map. You think there’s a peek and poke for its bytes via GPIB? I’d be surprised, but maybe…
rauldm:
Sicco, I'm from México, how can Buy your secondlife board?, I like because it has vga Port right?
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