Subject:
|
8 bits A/D bus
|
Newsgroups:
|
lugnet.robotics.handyboard
|
Date:
|
Wed, 14 Jan 1998 20:44:17 GMT
|
Original-From:
|
ValTres <ValTres@aol.#ihatespam#com>
|
Viewed:
|
1632 times
|
| |
|
|
Hello,
I've bought a handy board, and try to build a card to enserve two motors.
On that card I have a IC chip (HP hctl 1100) that needs to be link to a 8 bits
Adress/data bus in both reading and writing modes. My problem is where to pick
such a bus on the board. So my two questions are:
- Is it possible to connect to D0..D7 bus (knowing I want to keep the screen
working as it's made for) to pick up informations without affecting the
screen
functions? In that case do I need something as a latch to differentiate the
way
for the informations to go?
- Otherwise, how could I pick 8 I/O port on the board?
Please, help me: It makes me stay awaken all nights!!
Thanks in advance.
H.Tressel
|
|
Message has 2 Replies:
 | | Re: 8 bits A/D bus
|
| I am building a somewhat similar circuit (a high-current h-bridge for the handy board), although I only need to read the data lines. However, the same approach will work for writing to the bus. My circuit lives on a board which plugs in between the (...) (27 years ago, 14-Jan-98, to lugnet.robotics.handyboard)
| | | Re: 8 bits A/D bus
|
| Please read Appendix B of the 6.270 Robot Builders Guide. This explains how to interface latches with the Handy Board. See (URL) Hello, (...) s (...) k (...) e (...) (27 years ago, 14-Jan-98, to lugnet.robotics.handyboard)
|
3 Messages in This Thread:
 
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
