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What is synthesizable and non-synthesizable in VHDL?
When you write you Verilog or VHDL code, you are writing code that will be translated into gates, registers, RAMs, etc. However, there are some parts of Verilog and VHDL that the FPGA simply cannot implement. When you write code like this, it is called non-synthesizable code.
In which of the following case the code will not be synthesizable in VHDL?
8. In which of the following case, the code will not be synthesizable? Explanation: The design is synthesizable if the procedure doesn’t have any WAIT statement in it. Also, a process can have wait statement until it doesn’t have a sensitivity list.
What is Synplify Pro?
Synplify Pro is the industry standard for producing high-performance and cost-effective FPGA designs for large designs that need the fastest possible synthesis runtimes and the highest quality timing, area and power results.
Can you use a loop in synthesizable code?
Another piece of code that new digital designers often misuse is looping statements, such as while, for, repeat, etc. Loops in synthesizable code cannot actually be used the same way that you might see them in a software language like C. This is a huge problem that new hardware developers have.
What does it mean to write a synthesizable FPGA code?
When you write you Verilog or VHDL code, you are writing code that will be translated into gates, registers, RAMs, etc. The program that performs this task is known as a Synthesis Tool. It is the job of the Synthesis Tool to take your Verilog or VHDL code and turn it into something that the FPGA can understand.
Why do you use non synthesizable code in simulation?
The reason is that it makes your testbenches more powerful. When you write a testbench for simulation, often using non-synthesizable code constructs makes your testbench better and allows you to accomplish things easier. The most fundamental non-synthesizable piece of code is a delay statement.
Which is an example of a non synthesizable piece of code?
Delay Statements. The most fundamental non-synthesizable piece of code is a delay statement. The FPGA has no concept of time, so it is impossible to tell the FPGA to wait for 10 nanoseconds. Instead, you need to use clocks and flip-flops to accomplish your goals. Below is an example of non-synthesizable code that has been converted…