Verilog Code For Serial Adder Verilog
Posted : admin On 20.08.2019SPI verilog source code. The serial Peripheral Interface or SPI bus is a synchronous serial data link, a de facto standard, named by Motorola, that operates in full duplex mode. It is used for short distance, single master communication, for example in embedded systems, sensors, and SD cards. Hi everyone, can anyone help to find a verilog module for 4 bit serial adder? The following chart is consderd It is part of my project please help me.
I am supposed to create 4 bit full adder verilog code in vivado.But when I try to test in the simulation.It give me z and x output.Which part of code I have to change to get an output in simulation
This is the one bit full adder verilog code
I have check the schematic for this code and everything is correct.
Test bench
Verilog Code For Serial Adder Verilog Download
David CullenSerial Adder Verilog Code

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Design is a serial adder. It takes 8-bit inputs A and B and adds them in a serial fashion when the goinput is set to 1. The result of the operation is stored in a 9-bit sum register, The block diagram is attached. I am using Quartus II 13.0sp1 (64-bit) Web Edition.
Errors:Error (10170): Verilog HDL syntax error at LAB9b.v(56) near text 'â'; expecting ':', or ','i have not written this text 'â' anywhere in the code but still it is sowing me syntax error near 'â' .??
Following is the Code written :-
Greg1 Answer
’
is not '
(notice the shape difference). Verilog works with the apostrophe character ('
, ASCII 0x27). Your ’
is likely an extended ASCII character. There is also a »
character, which I believe should be !
.
I'm guessing you wrote your code in word editor (ex Microsoft Word, LibreOffice Writer, Apple iWork, etc). These kinds of editors tend to swap '
for ’
while you type because it is more visually appealing for humans. Email clients and some messaging apps tend to do this too.
You should always write your code in a plain texted editor or an editor intended for writing code. Emacs and Vim are popular editors for writing code; syntax highlighting plugins are available for both. An IDE, like Eclipse, is another option. Notepad does work as well.
I also noticed you used and assign
statement on the reg
type temp
. This is not legal in verilog. assign
statements can only be done on net types (e.g. wire
). You may have other compiling errors that will show up after fixing ’
and »
, the error message will likely be more helpful.
The compiler will not flag it, but recommend coding style is to use blocking assignments (=
) inside combination block (always@(*)
), not non-blocking (<=
).
