I’m from Norway, but I live in Bangkok, Thailand. Before I started VHDLwhiz, I worked as an FPGA engineer in the defense industry. I earned my master’s degree in informatics at the University of Oslo.
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Most VHDL simulators use the Tool Command Language (Tcl) as their scripting language. When you type a command in the console of the simulator, you are using Tcl. Furthermore, you can create scripts with Tcl that run in the simulator and interact with your VHDL code. In this article, we will create a self-checking testbench…
How to link Quartus Prime IP libraries to VUnit
Have you ever wanted to run a VHDL simulation that includes a Quartus IP core through the VUnit verification framework?
This tutorial shows you how to generate, incorporate, and link external Quartus IP libraries to VUnit.
How to use conditional statements in VHDL: If-Then-Elsif-Else
In the previous tutorial we used a conditional expression with the Wait Until statement. The expression ensured that the process was only triggered when the two counter signals where equal. But what if we wanted the program in a process to take different actions based on different inputs? The If-Then-Elsif-Else statements can be used to…
Basic VHDL quiz – Part 2
Test your coding skills with this VHDL quiz after completing tutorials 6-11 from the Basic VHDL Tutorial series!
How to use a While loop in VHDL
In the previous tutorial, we learned how to use a For-Loop to iterate over an integer range. But what if we want a more detailed control of the loop than just a fixed integer range? We can use a While-Loop for this. The While-Loop will continue to iterate over the enclosed code as long as…
How to create a timer in VHDL
In earlier tutorials we have used the wait for statement to delay time in simulation. But what about production modules? The wait for statement cannot be used for that. That only works in simulation because we can’t just tell the electrons in a circuit to pause for a given time. So how can we keep…