UPDATE!!!

After some consideration, I've decided to ditch the serial port.
I figured if I need one that bad ill put it on an add-on card.
my main issue now is routing the PCB. included below are the files for the ENTIRE project in KICAD.
please, as always feel free to give feedback and point out ...

looking for a uart or Duart recommendations to replace 65c51n

also looking for ideas on whether or not to integrate the keyboard/ (mouse? ) onto the propeller chip.

Updates!



so after updating to Kicad 6.0 and getting a new windows machine i have good and bad news:

good news:
No More Target! 3001 funkiness with inconsistent part labeling
no more random export funkiness
figured out what level shifters ic's I'm going to use
Bad news:
I have no idea how to ...

hi all,
was just redesigning the schematic in Kicad 5.1 and was curious as to what part I should use to convert my 5v data/ adress bus signal into a 3.3v for my propeller chip (video and audio generator.)

Thanks in advance!

FloobyDust,

The logic chip Alpha character is just more goofiness i have yet to resolve, fro now were both going to just have to deal with it (Sigh...) .

I did want to have my Port Selects active low, thank you for pointing that out.

The flash memory is a ATMEL AT49BV002ANT (i Thought I labeled ...

OK, Fixed the random x'es
cleaned up MOST of the schematic and labeled everything: Aaaand here's the Gray-scale: (Please Include the page number where the issue is , make it a lot easier for me !!)

Im using target 3001! As my software bc my pc is a dell dimensions 4600 running windows XP Pro sp3 with a pentium 4 and 256mb of ram. It just wont run anything else and i refuse to draw them by hand.
some of the goofyness is having to do with my export settings, (i think) so ill loook at those.

How so?

Updates Continue on the Schematic: And To make BDD happy: Also attached is the INCOMPLETE Flow Chart of The tinderbox's operation:

(You'll want to post a greyscale version of the schematic, or a grumpy BDD will tell you off.)

Feedback:

Can I suggest bus lines for your address and data busses, to make the schematic easier to read.
You could use a DS1818 (or something like it) as a single component replacement for your 555 ...

Hey all,

updated the schematics and cleaned them up a bit,
still looking for feed back and ideas.

thanks!

Alright., here's what i have so far:

oops wrong file!
heres the right one:

Hi all,
I'd really appreciate it if you could take a second and look at these schematics for any goofs I've made and did not catch




Thank you!

TinderboxINTC_SCH.PDF
is this just A0 connected to an inverted on one CS and connected direly on the other CS?

Yeah, something like this:

Selects.jpg



In my particular implementation the device select lines were already decoded.



I'm doing the same thing with my systems dual IRQ ...