At boot time Cyclone V from nand, gpio HPS not controlled

[AKirv]

Hello!

At boot time Cyclone V from nand, gpio HPS not controlled, GPIO29 and GPIO30 HPS set logic "1", it lasts ~ 8 seconds. GPIO29(30) HPS set "1" via 170 msecond after set up nPOR , and GPIO29(30) set "0" via 200 usecond after set down CONFIG_DONE. External pull-down resistors not help. At boot time Cyclone V from SD, no problem. 

Please Help, how to make at boot time from nand gpio HPS set logic "0"?

Thanks!

[AKirv · Accepted solution]

Problem solved https://www.intel.com/content/www/us/en/programmable/support/support-resources/knowledge-base/solutions/rd12312014_593.html