Build Details IV – Identity Crisis
We apologize in advance that we’re going to have to punt on this section – the powers that be are giving it a thumbs down. The final part of turning a 16032 into a 32128 is to convince the software that it is talking to an actual 32128. Once the software is convinced that the device has 32 channels and 128k of RAM, it will go fetch 32 channels and 128k of RAM. Now it’s all well and good to solder new resistors onto your board, but “soldering new resistors” into software is somehow seen as distasteful. Meh.
Long story short – you’re on your own here. What we can tell you is that each model has a unique USB PID stored in the 93LC46B serial EEPROM attached to the GL-660 over by the USB jack. The VID/PID is fetched by the software and based on what it finds, the software decides how many channels and how much RAM to fetch when a trigger is detected
We suppose you could try modifying the EEPROM or the software, but again, we don’t know and certainly won’t discuss the details of either. Nor will comments discussing either be allowed. A better route would be to investigate the protocol used to talk to the device so an open-source software replacement could be written! We’re currently trying to drum up interest in this endeavor with some of the folks from other open-source logic analyzer projects, so if you know someone that is a part of those projects or you yourself are part of one, drop us a line and let us know if you’re interested.
Until next time – Happy Hacking!
Openschemes
I have created a BOM for this mod from Digikey. Does anybody want to look it over and see if there is anything that should be changed?
https://spreadsheets.google.com/ccc?key=0AnWif20cSKwEdGYtNUVJUzNvWXJkNUszSzd0SnQ5WlE&hl=en&authkey=CITJpeAM
Top site, I had not come across openschemes.com before in my searches!
Carry on the excellent work!
Did someone use the mod with an actual device? Is this hack still work on it? Thx a lot for Answer.
MAX
Yes, definitely. We and bushing have both done the mod and it works to expand all the channels. We have heard that the chip has been changed so the recent smaller devices can no longer be expanded, though.
[...] Openschemes: ZeroPlus Logic Cube – The Modification [...]
Did someone Know if the Hardware Hack work with the actual revision of the ZeroPlus LAP-C16032?
Thanks for the Answer
Peter
I’m wondering, too — Is there any way to check or verify if it’s still possible to purchase a hackable device? Or have those revisions all been sold off and cleaned out?
No problems for a 32 channel extension (even with lastest asic version) but they cut 2 pins on it (asic) to prevent a RAM adressing from 32k to 128k = Fixed with 2 thin wires between PCB and Asic.
Congratulations! Thank you for letting us know the device is still hackable, that is great news. And nice idea splicing in the missing pins!
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having opened up my newly purchased c16032 unit made in oct 2011 , i find that there are 4 pins that are removed from the asic , cut flush , will not be an easy thing to attach back on the asic ,
the hack of doing the usbport.dll change works to allow the program to make it look like 16128 but i am wondering if because of the cut pins on the asic its working to max mem of 16128 ?
also the protocols registered will not work unless you register them with the keys for that model & serial
Yep, not easy to solder but very similar to what Nintendo did on the Wii console for a while. To get around it, guys just ground a little of the black plastic package off and soldered to the leadframe region of the missing pins. Read about something like that here
http://www.eurasia.nu/modules.php?name=Downloads&d_op=viewdownloaddetails&lid=4284&ttitle=Soldering_guide_for_Wii_with_pins_cut
As for the protocols – yes, you are correct although you can change the serial by updating the eeprom. But if you have a lot of protocols registered to your base unit, you will not be able to use them on the modded unit.
be good if someone who has done a current unit can advise , as even if i get the 4 pins attached again , i am still not sure the extra channels are not grounded internal to asic , have not started this adventure till i get a better tip for the Metcal
also the 7416245b and the 1.2uH are available via RS components