C
Commander Dave
- Jan 1, 1970
- 0
Greetings!
I wanted to add a serial port to my 1981 Gorf arcade machine. Since it is
really just a specialized Z80 computer, I was just going to tap the signals
from the Z80 pins and create a small sub-board with a UART. I haven't really
got this working yet and was since I have virtually zero experience with any
hardware design, thought I might beg a question or two.
First, you can see the schematic and other info here:
http://tinyurl.com/yfe9utm (or: http://preview.tinyurl.com/yfe9utm )
First, was there a better UART that I could have chosen? The 16C550 seems to
have been around for quite awhile. I am looking for mainly availability and
simplicity rather than cost or other factors.
Second, I have to tap all the signals from the bottom of a card cage by
running individual wires to my board. I currently have this hard wired which
is a pain for debugging purposes. I need a connector system that takes these
individual wires and turns it into some kind of plug that could go into a
socket. I'm not too great with finding what is out there. Can someone make a
suggestion on what to use to do this? There are 20 signal connections that
need to be made on the current design.
Third, I know I am a total newb with design and prototyping. If you see
obvious errors with my design or implementation, please feel free to let me
know. Please be kind though, I bruise easily...
Cheers!
-Commander Dave
I wanted to add a serial port to my 1981 Gorf arcade machine. Since it is
really just a specialized Z80 computer, I was just going to tap the signals
from the Z80 pins and create a small sub-board with a UART. I haven't really
got this working yet and was since I have virtually zero experience with any
hardware design, thought I might beg a question or two.
First, you can see the schematic and other info here:
http://tinyurl.com/yfe9utm (or: http://preview.tinyurl.com/yfe9utm )
First, was there a better UART that I could have chosen? The 16C550 seems to
have been around for quite awhile. I am looking for mainly availability and
simplicity rather than cost or other factors.
Second, I have to tap all the signals from the bottom of a card cage by
running individual wires to my board. I currently have this hard wired which
is a pain for debugging purposes. I need a connector system that takes these
individual wires and turns it into some kind of plug that could go into a
socket. I'm not too great with finding what is out there. Can someone make a
suggestion on what to use to do this? There are 20 signal connections that
need to be made on the current design.
Third, I know I am a total newb with design and prototyping. If you see
obvious errors with my design or implementation, please feel free to let me
know. Please be kind though, I bruise easily...
Cheers!
-Commander Dave
