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tokyoscarab
2 Posts |
 Posted - 01/17/2023 : 19:38:48
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I've had a 4x4 for a bit and I've used it to program several EEPROMs. I have another one I need to program but I have a special situation. The chip I want to program is the Texas Instruments TMS27C240-10JL. That chip is a 40 pin DIP chip. The 4x4 only supports the TMS27C240. That chip is a QFN and requires the ADP-054 adapter. If I need to make my own adapter for the 10JL, I can do that, but I don't know how the pinout works for the 4x4. Also, can someone explain in more detail how adding devices to the device.txt works? I understand most of the parts, but I don't understand what things like "codesize". How does the codesize parameter work? Any help on how I can get this chip working with the 4x4 would be greatly appreciated! 
Here is a link to the datasheet:
https://pdf1.alldatasheet.com/datasheet-pdf/view/557267/TI/TMS27C240-10JL.html |
Edited by - tokyoscarab on 01/17/2023 19:39:38
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| Reply #1
anniel
2572 Posts |
Posted - 01/18/2023 : 08:05:18
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quote:
Originally posted by tokyoscarab
I've had a 4x4 for a bit and I've used it to program several EEPROMs. I have another one I need to program but I have a special situation. The chip I want to program is the Texas Instruments TMS27C240-10JL. That chip is a 40 pin DIP chip. The 4x4 only supports the TMS27C240. That chip is a QFN and requires the ADP-054 adapter. If I need to make my own adapter for the 10JL, I can do that, but I don't know how the pinout works for the 4x4. Also, can someone explain in more detail how adding devices to the device.txt works? I understand most of the parts, but I don't understand what things like "codesize". How does the codesize parameter work? Any help on how I can get this chip working with the 4x4 would be greatly appreciated!
Here is a link to the datasheet:
https://pdf1.alldatasheet.com/datasheet-pdf/view/557267/TI/TMS27C240-10JL.html
ADP-054 has a 40pin ZIP. The codesize parameter is the size given in the datasheet. |
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| Reply #2
tokyoscarab
2 Posts |
Posted - 01/18/2023 : 10:43:40
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I guess my question is, do I even need the adapter? My 4x4 already has a 40 pin ZIF socket and the chip is a 40 pin DIP. Why would I need the adapter? If a couple pins don't line up to the pinout of the ZIF, I could just make an adapter board to correct those pins. What is the pinout of the ZIF? Is there anything I would need to know to make an adapter just using prototyping board, pin headers, and wires? Thanks
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| Reply #3
anniel
2572 Posts |
Posted - 01/18/2023 : 14:17:55
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quote:
Originally posted by tokyoscarab
I guess my question is, do I even need the adapter? My 4x4 already has a 40 pin ZIF socket and the chip is a 40 pin DIP. Why would I need the adapter? If a couple pins don't line up to the pinout of the ZIF, I could just make an adapter board to correct those pins. What is the pinout of the ZIF? Is there anything I would need to know to make an adapter just using prototyping board, pin headers, and wires? Thanks
If you want to make it on a protoboard you will definitely need a schematic or figure out the 16bit logic yourself. |
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Getting GQ 4x4 To Work With TMS27C240-10JL
