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Honored Contributor
Honored ContributorConfiguration Cyclone V 5CEBA9F23C8N
I Design Board With 5CEBA9F23C8N I choose AS Configuration for programming & EPCS128 After Develop PCB I start to program my board STEP1- Compile My Design in quartus 16.1(SIMPLE LED ON...
Altera_ForumHonored Contributor
Honored Contributor --- Quote Start --- power up Power up all the power supplies that are monitored by the POR circuitry. All power supplies, including VCCPGM and VCCPD, must ramp up from 0 V to the recommended operating voltage level within the ramp-up time specification. Otherwise, hold the nCONFIG pin low until all the power supplies reach the recommended voltage level. --- Quote End --- You should consider to select standard POR delay (100 ms) instead of fast (4 ms) in MSEL if you have problems with power supply ramping. I remember there have been problems with previous Cyclone families and non-monotonous power supply startup which could cause wrong latching of MSEL coding under circumstances. Not sure if it could still occur with Cyclone V. Nevertheless I would check all power supplies statically and dynamically.
