i want to set time with keypad or keyboard using DE2 board

Altera_Forum · ‎12-23-2014

hello

i got the digital clock using vhdl. but my code is to set the time with switches.

i want to set the time by using keyboard or keypad.

so, i think i don't have many things to change in my VHDL coding.

but i have no idea to work with keyboard or keypad.

if you know about that plz help me...........

Altera_Forum · ‎12-23-2014

First, how do you connect the keyboard or keypad. Just buttons is easiest. For each button a GPIO pin and then you could just read that. Another option is to use protocols like PS/2 or USB. I have some experience in designing hardware for PS/2 and if you only want to read the design is relatively simple. I have no idea how to use USB. There might be a design in the IP catalogue you can use.

Altera_Forum · ‎12-23-2014

thank sir

but i don't know how to write VHDL code for this time set with keypad or keyboard.

if you don't mind, can you explain me more? no matter ps/2 or usb sir

Altera_Forum · ‎12-23-2014

Well, you have a module that reads input from the keyboard/pad.

You will have to find out which type of character encoding is used and than you have to convert this to a number.

This number can be used as input to set the time.

Altera_Forum · ‎12-23-2014

thanks sir

can you share me the link to read.

i don't know where i can get it.

Altera_Forum · ‎12-23-2014

I don't have any links to this. I have some books on my shelf concerning protocols etc.

But I imagine you'll find the same information if you use your favorite web search engine.

Altera_Forum · ‎02-22-2015

i still don't know how to do it sir :(

Altera_Forum · ‎02-22-2015

Where do you get stuck?