Jump to content
ELFORUM - Forumul Electronistilor
Sign in to follow this  
Smarius

Ciruite integrate digitale

Recommended Posts

Am o dificultate in a intelege aceasta problema . Ar putea sa ma ajute cineva?Define and design a circuit which receives a one-bit wave form and shows on its three one-bit outputs, by one clock cycle long positive impulses, the following events: • any positive transition of the input signal • any negative transition of the input signal • any transition of the input signal.

Share this post


Link to post
Share on other sites

Problema cere in esenta realizarea unui detector de fronturi. La intrare se aplica o secventa de date aleatoare, care vin pe un singur bit. De exemplu poate fi o linie seriala. Ai nevoie si de un clock asociat cu datele. Circuitul tau are 3 iesiri. Una semnaleaza fronturile pozitive, adica tranzitia din 0 in 1, a doua semnaleaza fronturile negative, iar cea de-a treia semnaleaza orice tranzitie, fie ea pozitiva sau negativa.O posibila realizare s-ar face cu un bistabil D pe post de memorie si un XOR intre data curenta si data anterioara (iesirea Q) ptr. detectat orice tranzitie, o poarta AND intre iesirea XORului si date ptr detectia frontului pozitiv si un NOR intre iesirea XORului si date ptr detectia frontului negativ. Nu sunt 100% sigur, dar trebuie pus pe hartie si desenate cateva forme de unda. Probabil ca mai sunt solutii, care optimizeaza nr de porti folosite.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.