I want to make a serial to parallel converter for 11 bits with 7495. Verilog serial to parallel. Verilog/VHDL codes for parallel to serial and vice. Problem with parallel to serial converter (verilog) Options. Mark as New; Bookmark. By the way, I find that sized constants make the code less readable in Verilog.

Parallel to serial converter in verilog Search and download parallel to serial converter in verilog open source project / source codes from CodeForge.com. Paralel To Serial Converter - FPGAcenter. Parallel to Serial Converter. In this example we will design a Paralel to Serial Converter module. This module takes a 8 bit.

Hello everyone. Can someone explain to me, why ISE saying me that: Xst:653 - Signal is used but never assigned. This sourceless signal will be automatically connected to value 101110. Zip File Information. WARNING:Xst:1426 - The value init of the FF/Latch enable hinder the constant cleaning in the block top_module. You should achieve better results by setting this init to 0. WARNING:Xst:2677 - Node of sequential type is unconnected in block.......................

WARNING:Xst:2677 - Node of sequential type is unconnected in block. Im working under some SPI module; started with simple ParallelToSerial converter with CS signal, here is code: module ParallelToSerial( input CLK, input [15:0]par_INPUT, input enable, output ser_OUTPUT, output SCLK, output CS ); reg [15:0]load; reg [6:0]counter=0; assign ser_OUTPUT=load[0]; assign SCLK=CLK; assign CS = enable; always @(posedge CLK) begin if (enable==1'b0 && counter==0) begin load=par_INPUT; end if (enable==1'b0 && counter. Yet another stupid misleading warning. From the viewpoint of XST, 'assigned' means that you have an assignment, either in a process (always or initial block in Verilog) or a continuous assignment (assign statement in Verilog). The initial value given in the declaration of a reg in Verilog is not considered an 'assignment.' If you look at the warning closely, the value being 'automatically connected' is the binary equivalent of 3,054 which is the value you initialized the variable to.

If this is the desired behavior, i.e. You really want a constant value of 3054, and didn't forget to assign another value to this variable, then you can ignore the warning.

Fb Hacking Software For Windows 7 here. I've seen this same warning given for inferred ROM's, which being 'read-only' naturally don't have any assignments beyond initialization. -- Gabor [Edit] If you really don't like warnings like this, you could change the declaration of par_INPUT in the top level code to wire instead of reg. Then the value given in the declaration is considered a continuous assignment, and is equivalent to: wire [15:0] par_INPUT; assign par_input = 16'd3054; By the way, I find that sized constants make the code less readable in Verilog and are not required, so I'd normally write assign par_INPUT = 3054; Also note that sizing a constant in Verilog is not a guarantee that the content is checked for the ability to fit in the given size. For example you could just as easily write assign par_INPUT = 4'd3054; and there would be no warning or error, even though 3054 clearly does not fit in 4 bits, and the value assigned in this case would be 14 (value in low 4 bits of 3054). The only case where I typically specify a size on a constant is when the width is greater than 32 bits, where the implied integer size is too small.