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AEsqu's avatar
AEsqu
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6 years ago

altera_reserved_tck hold timing violation

In the help document: https://www.intel.com/content/www/us/en/programmable/support/support-resources/knowledge-base/solutions/rd10082012_359.html it is mentioned to set altera_reserved_tck on globa...
KhaiChein_Y_Intel's avatar
KhaiChein_Y_Intel
Icon for Regular Contributor rankRegular Contributor
6 years ago

Hi,

This error is not related to the Global Clock assignment. The error indicates that the source that feeds the specified port in the specified JTAG block is not a pin. You have to modify the design so that the source of the port is a pin.

Thanks.

AEsqu's avatar
AEsqu
Icon for Contributor rankContributor
6 years ago

Hi YY,

This error only occurs when I add the QSF line for global clock:

set_instance_assignment -name GLOBAL_SIGNAL GLOBAL_CLOCK -to altera_reserved_tck -entity Achilles_arria_X

Nothing else has changed in RTL.

Removing the line solves the issue.