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The signed and unsigned types in VHDL are bit vectors, just like the std_logic_vector type. The difference is that while the std_logic_vector is great for implementing data buses, it’s useless for performing arithmetic operations. If you try to add any number to a std_logic_vector type, ModelSim will produce the compilation error: No feasible entries for…
std_logic vs std_ulogic
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How to check if a vector is all zeros or ones
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How to create a finite-state machine in VHDL
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How to create a clocked process in VHDL
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How to create a signal vector in VHDL: std_logic_vector
The std_logic_vector type can be used for creating signal buses in VHDL. The std_logic is the most commonly used type in VHDL, and the std_logic_vector is the array version of it. While the std_logic is great for modeling the value that can be carried by a single wire, it’s not very practical for implementing collections…
Dear Jonas
Thanks for the content, thumbs up. please keep up the good work!
Best Regards
Thanks! That’s good to hear.
You are doing a very nice job. Top quality!
Thanks! I really appreciate your comment.
Hello Jonas
You really did save me by these great videos and materials.
These tutorials are the best thing on the internet.
Thank you for creating them.
Thanks! That’s encouraging to hear. I will do my best to keep up the quality of my blog posts.
Thank you so much man you are awesome! i learnt vhdl in university but i forgot after all years. i started again working. You help me too much! i will continue to course after this beginner course. i am planning the begin beginner fast track ! please dont stop the teaching us . thank you so much! greetings from turkey 🙂
Hello, Utku. Thank you for the nice comment! I’m glad you found my blog to be helpful. I will keep the free and premium content coming your way.
Thank you for providing such great content on a subject that imo can be tricky to really understand. But you make it easy for everyone!
That’s great to hear! I will keep on creating tutorials and articles for you. ?
Dear Jonas,
I’m an electronic engineer from Morocco, currently studying for a masters degree in microelectronics and sensors in France.
You helped me a lot to remember some of the vhdl basics and get more further into it.
I worked on an academic project using basys3 and vivado for a vga controller.
Thank you very much for this great content, keep up the good work.
I’m glad you like the quiz. It’s a good way to refresh your knowledge. 🙂
Excellent learning tool
Thanks! By the way, I also use quizzes in the VHDLwhiz membership.
Great tutorials! Short and sweet!
I’ll be sure to go onto the FPGA and VHDL Fast-Track after completing the basic tutorials..
Thanks, Dale! Also, check out the VHDLwhiz Membership, which gives you multiple courses, resource items, and coding challenges and supports your success in FPGA design.
Nice quiz, only problem is sharing your score on facebook is not working.
Thanks for the feedback. I’ve created a task on this. I’ll see if I can fix it when I have the time.