Цитата(ball52 @ Dec 24 2010, 16:18)

По всем ногам прошлсь - всё на месте
Посмотрите "Cyclone III Device Family Errata Sheet"
Там есть фраза, может поможет :
MSEL Pin Connection
Altera has identified an issue with Cyclone III MSEL pins connected to VCCIO for logic high. If VCCIO sags below 0.75 V after power on reset and before configuration starts, the MSEL pins may be sensed at a different setting than was intended. The device might then require a power cycle to recover. This issue does not occur when the device is in user mode or when configuration has started.
Solution
Connect MSEL pins to VCCA for a logic high. If VCCA sags below the device’s POR trip point then the POR circuit will reset the device. If you have already connected the MSEL pins to VCCIO on your board, make sure that VCCIO rises monotonically to its recommended operating condition voltage level and stays within the voltage min and max. A monotonic rise will prevent the issue from occurring.