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DE2 doesn't have regular Altera Programming
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Yes, JP3 is an assembly option only. Also, the MAX CPLD image file apparently isn't supplied with DE2 support files. I simply assumed, this would be the case as with Altera Dev kits.
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Is there any other power supply (5V)?
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It's an internal regulator and probably O.K. in your case.
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how can I fix 93C46 configuration EEPROM corruption.
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I'm not aware of an official procedure, but it should work by copying the data from another DE2-board or an USB-Blaster using FTDI MProg tool. The problem has been reported by other forum users before. I wonder how an EEPROM corruption happens at all. It may be also the case, that the EEPROM data are O.K., but the FT245 initialization fails for some reason, e. g. inappropriate reset.
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