kostispalamas
New Member
Greetings.
I am making a micro based calculator that uses these components:
micro phillips 89C668
7-segment decoder (74HCT4511)
4-digit common cathode 7-segment display
Inverting buffer (74HCT240)
decoder (AND & OR GATE)
keyboard
I am making this as a university task. Well, I have connected all this using the data sheets of each component but, i don't know how they really work, how my calculator will work. I cant get help from my uni so I post here!
I searched on the net but i found minimal source to help me out.
I just want to know how this things will be connected and work... I also have to make the software but how I am going to make this soft if I don't know how this components work? (i am familiar with the programming language).
What I am asking is if anyone knows any link that I can find sources about this calculator and how it works. I know that the user will press a key on the keyboard that will be connected to the micro. Then the software stored in the micro will force some logic 0's or 1's to make 7-segment light up.
(notice: i tested my 7-segment display and works fine, all digits light up).
If anyone can help me out I will truly appreciate that.
Thanks
Kostis Palamas
I am making a micro based calculator that uses these components:
micro phillips 89C668
7-segment decoder (74HCT4511)
4-digit common cathode 7-segment display
Inverting buffer (74HCT240)
decoder (AND & OR GATE)
keyboard
I am making this as a university task. Well, I have connected all this using the data sheets of each component but, i don't know how they really work, how my calculator will work. I cant get help from my uni so I post here!
I searched on the net but i found minimal source to help me out.
I just want to know how this things will be connected and work... I also have to make the software but how I am going to make this soft if I don't know how this components work? (i am familiar with the programming language).
What I am asking is if anyone knows any link that I can find sources about this calculator and how it works. I know that the user will press a key on the keyboard that will be connected to the micro. Then the software stored in the micro will force some logic 0's or 1's to make 7-segment light up.
(notice: i tested my 7-segment display and works fine, all digits light up).
If anyone can help me out I will truly appreciate that.
Thanks
Kostis Palamas