• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Hello, please can somebody help me this circuits cpu to connect with display and keyboard

Your circuit is a few boards full of empty sockets?
Hello Gophert, like i told you before...i say with my self(why i have to make, when i dont know for screen and i stop working i thought there is complete(man i did not know), but now i know...is PERFECT from the next(hope) i gonna start to finish ;-)))))
Have a Nice Wekend.... greetings
 
You need spaces between the sockets - some IC bodies are too long to fit with the pins. Gaps are also useful as wiring "lanes" so the connections you add are not crossing other solder joints - or places you will need to add more connections to later.

Also you have all 18 pin 0.3" pitch, no allowing for the different size ICs.
You need to fully plan things and work out the exact IC types (and packages), plus allowing for other components, before you start building.

This is a practical example, though built with wire-wrap. There are decoupling capacitors under every IC, hidden inside the IC sockets.
The ICs are set out with reasonable spacing, on a ground-plane board to avoid electrical noise.

https://flic.kr/p/JHgJwf
Hello,
thank you very much for advice...there is two space because that was socket of 18(i think and i have 16 pins gates(but socket i did mistake), but no problem all party i gonna test(like i test in bredeboard)

Have Nice Wekeng...
greetings..
 

JimB

Super Moderator
Most Helpful Member
say with my self(why i have to make, when i dont know for screen and i stop working i thought there is complete(man i did not know), but now i know...is PERFECT from the next(hope) i gonna start to finish
I have no idea what that means.

Michael, this is an English speaking forum, it would help us to help you if you would write in a more standard form of English. Break the text into sentences and use some punctuation, rather than running all the words together.

We realise that English is probably not your first language, and most of us make allowance for that, but, when it takes more effort to decode the message than to fix the problem, then there are difficulties.

JimB
 
I have no idea what that means.

Michael, this is an English speaking forum, it would help us to help you if you would write in a more standard form of English. Break the text into sentences and use some punctuation, rather than running all the words together.

We realise that English is probably not your first language, and most of us make allowance for that, but, when it takes more effort to decode the message than to fix the problem, then there are difficulties.

JimB
Hello Jim
sorry for my late answer
man i am trying to translate in google, but he google dont translate correct.
i try my best to translate in english….
thanks man.;)
 
hello to everyone
i finish pcounter the circuit, now i am working in ALU
i just like to ask you
what comes after building the timing, counter, sync
have a nice wekend
greetings.
 
You need spaces between the sockets - some IC bodies are too long to fit with the pins. Gaps are also useful as wiring "lanes" so the connections you add are not crossing other solder joints - or places you will need to add more connections to later.

Also you have all 18 pin 0.3" pitch, no allowing for the different size ICs.
You need to fully plan things and work out the exact IC types (and packages), plus allowing for other components, before you start building.

This is a practical example, though built with wire-wrap. There are decoupling capacitors under every IC, hidden inside the IC sockets.
The ICs are set out with reasonable spacing, on a ground-plane board to avoid electrical noise.

https://flic.kr/p/JHgJwf
hello

can you help me to finsh vga controller

i still did not finish, but i know how to make counter timing sync for vga controller.....
what i have to do next to finish the vga controller?
 

rjenkinsgb

Well-Known Member
can you help me to finsh vga controller
There is no VGA controller! VGA is one very specific type of video standard.

It uses a memory mapped pixel array. The whole design was only ever meant to be run in a software simulator and never built as a physical design.
The design uses a 512 x 256 pixel memory array, with bits directly controlling pixel on/off; no colour, no built-in text capability etc.

The overall design is not technically impossible to build but extremely impractical and there are far better and far more capable designs for self-build CPUs / computers around.

As I said from the start, if you are going to try and actually build that design, I (or other people) will give you general guidelines and provide information sources, but no one will just design the display circuitry for you; you need to learn enough to do it yourself, or chose a more practical design that has been proven to be suitable for a DIY system.

eg. Something like a DIY PDP-8 design is infinitely more practical; there is a mass of software that can run on those and an incredible amount of documentation overall, with user groups and excellent support.
 
There is no VGA controller! VGA is one very specific type of video standard.

It uses a memory mapped pixel array. The whole design was only ever meant to be run in a software simulator and never built as a physical design.
The design uses a 512 x 256 pixel memory array, with bits directly controlling pixel on/off; no colour, no built-in text capability etc.

The overall design is not technically impossible to build but extremely impractical and there are far better and far more capable designs for self-build CPUs / computers around.

As I said from the start, if you are going to try and actually build that design, I (or other people) will give you general guidelines and provide information sources, but no one will just design the display circuitry for you; you need to learn enough to do it yourself, or chose a more practical design that has been proven to be suitable for a DIY system.

eg. Something like a DIY PDP-8 design is infinitely more practical; there is a mass of software that can run on those and an incredible amount of documentation overall, with user groups and excellent support.
hi man

ooh man, i just want to connect my cpu to screen, you told me first what to do, so i did i build the circuits what to do next?
 

EE World Online Articles

Loading

 
Top