Flash programming stratix V board - Flash programming stratix V board While trying to program the flash memory device on a Stratix V development board, using parallel flash loader, programming failed with following error. 209048 verify block 0x00000000 - 0x00000800 failure on device number 1 We used Quartus Prime 18.1 Standard edition. Need some help to resolve this issue. Replies: Re: Flash programming stratix V board Hi, Yes, we always suggest customer to follow the guidelines to avoid failure. Furthermore, you can refer to PFL IP userguide for additional information. https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug_pfl.pdf Regards, Aiman Replies: Re: Flash programming stratix V board Hi Thanks for the reply. In our development kit the VCCBAT is connected to VCC2P5 (2.5 V supply), while the .pin file states the VCCBAT to be 3.0V. Can this be causing problem? We are not programing .ekp file or using design security feature. Regards Replies: Re: Flash programming stratix V board Hi, Thank you for contacting Intel community. You might have the error when you are trying to progr a m a volatile e ncryption key (.ekp) file if you have the VCCBAT pin tied to GND. Please see below KDB for solution: https://www.intel.com/content/www/us/en/programmable/support/support-resources/knowledge-base/solutions/rd03262010_556.html https://www.intel.com/content/www/us/en/programmable/support/support-resources/knowledge-base/solutions/rd07242013_685.html Regards, Aiman