Article ID: 000076750 Content Type: Error Messages Last Reviewed: 04/09/2018

Warning(12620): Input port OE of I/O output buffer "~ALTERA_MSEL<n>,<SDM_IO function>~~obuf" is not connected, but the atom is driving a bi-directional pin

Environment

    Intel® Quartus® Prime Pro Edition
BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description

You may see a warning message like the one above when compiling your Intel® Stratix® 10 design in the Intel Quartus® Prime Pro software version 17.0 and later. The warning message may refer to one of the MSEL (0..2) pins and an SDM_IO function that is being used on that pin (e.g.  CONF_DONE, INIT_DONE, HPS_COLD_RESET, HPS_WARM_RESET etc)

There is no requirement to make any internal connection to this pin and this warning message can be safely ignored.

Resolution

This warning message can be safely ignored. It will be removed in a future release of the Intel Quartus Prime Pro software.

Related Products

This article applies to 1 products

Intel® Stratix® 10 FPGAs and SoC FPGAs

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