Does the Quartus II synthesis support event controls in Verilog HDL? - Does the Quartus II synthesis support event controls in Verilog HDL? Description No, the Quartus® II Integrated Synthesis does not support event controls in Verilog HDL. For example, the code below synthesizes only one register, although the Quartus II synthesis does not issue an error: module lab0_uart( input clk_i, input rx_i, output reg tx_o ); always @(posedge clk_i) begin tx_o <= repeat(2000) @(posedge clk_i) rx_i; end endmodule Resolution To avoid this behavior, do not use event controls in Verilog HDL. An error indicating that this syntax is not supported is scheduled to be added to a future release of the Quartus II software. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue No plan to fix ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']