In the Intel® Quartus® Prime Pro Edition software version 20.3, when using the Configuration via Protocol (CvP) scheme on Intel® Stratix® 10 or Intel® Agilex™ devices, you may see this error when loading a core.rbf image after previously attempting to load a truncated core.rbf image.
Device Family: Intel® Agilex™ Series, Intel® Stratix® 10
Intel Software: Quartus Prime Pro
Type: Answers
Area: Component
Last Modified: October 05, 2020
Version Found: v20.3
Bug ID: 1507880746
dd: failed to open ‘/dev/altera_cvp’: Resource temporarily unavailable
Description
Workaround/Fix
To work around this problem, power cycle the system before reloading another complete core.rbf image.
This problem is scheduled to be fixed in a future release of the Intel® Quartus® Prime Pro Edition software.