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Altera_Forum
Honored Contributor
Honored ContributorError: CONF_DONE failed to go high in device 1.
Before anyone comments on this, I have searched the forum and read everything I have found on the internet with people getting this error message. :) I'll try to post as much relevant information ...
Altera_ForumHonored Contributor
Honored Contributor --- Quote Start --- VCCD_PLL and VCCA is 2,5V ... The JTAG plug is connected as such: ... 4 - 2,5V --- Quote End --- Please, check your schematic. - VCCD_PLL must be 1.2V for Cyclone IV (handbook, vol.1, chap.11, page 2) - JTAG pin 4 is a target VCCIO (3.3V in your case) - JTAG pin 6 (nCS) is an output from JTAG, leave it unconnected.
