Honored Contributor
Honored ContributorAfter reviewing the better readable schematic you posted at Edaboard (why not here?) http://www.edaboard.com/thread363521.html, I realized that VCCBAT is floating. According to CV pin connection guidelines, this might hold the device in POR.
--- Quote Start --- Connect this pin to a Non-volatile battery power source in the range of 1.2V - 3.0V when using design security volatile key. In this case, do not connect this pin to a volatile power source on the board. 3.0V is the typical battery power selected for this supply. When not using the volatile key, tie this to a 1.5V, 2.5V or 3.0V supply. Cyclone V devices will not exit POR if VCCBAT stays at logic low. --- Quote End ---
