Quartus® Prime Pro Edition User Guide: Design Compilation

ID 683236
Date 4/01/2024
Document Table of Contents VHDL wait Constructs

The Quartus® Prime software supports one VHDL wait until statement per process block. However, the Quartus® Prime software does not support other VHDL wait constructs, such as wait for and wait on statements, or processes with multiple wait statements.

VHDL wait until construct example

architecture dff_arch of ls_dff is
output: process begin
wait until (CLK'event and CLK='1');
Q <= D;
Qbar <= not D;
end process output;
end dff_arch;