#109086 - 03/06/17 07:02 AM
Re: TMS-09xx/1xxx thread (was New Dumps)
[Re: seanriddle]
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Joined: Mar 2015
Posts: 155
Rik
Senior Member
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Senior Member
Joined: Mar 2015
Posts: 155
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Okay, here's something I can do quickly/easily (but it's not perfect yet) for the Quiz Wiz question books: http://www.handheldmuseum.com/Coleco/QuizWiz/QW_03_MoviesAndTV.pdfThis is the whole book, scanned into a PDF with OCR applied so you can search it if you want. Problem is I'm using an auto-feed document scanner to scan them, so when it's unstapled and fed into it, the pages aren't in order (but if you wanted to print this and staple it like a magazine, it'll work great...) Anyone know of an automated way to basically slice these in half and organize them in numerical order? Seems like someone would have developed an easier way to scan an unstapled magazine into individual pages with minimal work... I can probably just output them to .TIFs, set up a Photoshop action to cut/save them and re-import into a PDF... But I was thinking maybe someone had developed an easier way..  At the very least, I can scan them all like this so they _exist_... Page ordering can be done later.  (This was scanned at 600dpi, and re-sized to 300dpi to make a 2.4mb file... The original is about 5mb, I can just leave them at 600 if people prefer...) Also, assuming the OCR worked well, we could just pull straight text out of it and use that instead of PDFs...
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#109130 - 03/11/17 10:43 PM
Re: TMS-09xx/1xxx thread (was New Dumps)
[Re: seanriddle]
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Joined: May 2010
Posts: 1,019
seanriddle
Very Senior Member
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Very Senior Member
Joined: May 2010
Posts: 1,019
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I uploaded info on TI Math Star: http://www.seanriddle.com/tp0456.html#mathstarIt has a TP0456 like one of the Little Professors and several calculators, but it is the 40-pin package instead of 28. It looks like they needed 2 more pins. I've also got a Mattel Children's Discovery System with a few carts coming, and a Castle Name That Tune.
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#109157 - 03/14/17 09:43 PM
Re: TMS-09xx/1xxx thread (was New Dumps)
[Re: seanriddle]
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Joined: May 2010
Posts: 1,019
seanriddle
Very Senior Member
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Very Senior Member
Joined: May 2010
Posts: 1,019
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I got the Mattel Children's Discovery System. So far it looks true to the schematics in patent 4492582, but I haven't pried off all the die protectors yet. The carts are unfortunately glued shut, and only 15 of the COP444's 28 pins are routed to the connector. I opened the 6 carts that I got, and the PCBs are identical except for labeling. It looks like they used a 1-letter code for each cart, and they also printed the 3-letter ROM code onto each PCB.
They did bond the remaining pins to test pads, which is very helpful, and the cover over the die doesn't have to be removed to get to them. The test pads aren't labeled, so I pulled one cover off so I could follow the traces.
The L port isn't used by the carts, so I figure my simplified dumping method won't work. It relies on the chip's code to set the L port to output, which all other COPs I've dumped do, since they use the L port for output. So I'll probably have to do the full method, which forces instructions to set the L port to output then jumps to near the end of ROM before switching to ROM dump mode.
I built a rig from an old JAMMA connector to give me access to the signals on the cart connector without soldering to it, then I tacked on the remaining wires to the test pads. But I must have something wrong because I should see a signal on the clock output and possibly the SK pin, but I'm not.
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