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Messages - kingofthebacon

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Other Calculators / Re: Build your own Z80 calculator
« on: September 28, 2011, 09:07:44 pm »
Okay so I was looking at bank switching is it possible to utilize all of the memory, or only the selected memory your using?

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Other Calculators / Re: Build your own Z80 calculator
« on: September 28, 2011, 08:19:46 pm »
Alright guys I'll take a look at this stuff, thanks for the fast reply! :)

3
Other Calculators / Re: Build your own Z80 calculator
« on: September 28, 2011, 04:19:00 pm »
I want my project to have an lcd that's not too big or small and I want it to have grayscale and some sort of sound output. I definitely want it to have sd card support. Guys I really don't know much about all of this can some one point me somewhere I can learn more about this stuff. I know some digital electronics but I'm not the best at all of this.

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Other Calculators / Re: Build your own Z80 calculator
« on: September 27, 2011, 08:27:23 pm »
I was learning some C++ I don't know if I will know what to do though. :(
I'm not very good at all of this. :(

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Other Calculators / Re: Build your own Z80 calculator
« on: September 27, 2011, 05:27:21 pm »
Maybe he can help because I can't program them! :)

List of People for stuff:

pic programmer dude - check
fpga programmer - need one

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Other Calculators / Re: Build your own Z80 calculator
« on: September 27, 2011, 05:08:12 pm »
So I should add this to the list

8-bit latches http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=296-2109-5-ND

Would this pic chip work?? - http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=PIC16F57-I/SS-ND

32k sram two of these chips - http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=BN-064HSRC-ND

Would this fpga chip work?? - http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=TMPA900CMXBG%28EY%29-ND

Can I hold the OS on the sd card?
I would need some sort of programmer to program these I don't want it to be too expensive though.
I'm not the best with digital electronics either so I am going to need some help from you guys!
Without all of you this will only be a dream...

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Other Calculators / Re: Build your own Z80 calculator
« on: September 26, 2011, 06:06:09 pm »
@Spyro543 Yeah I would work together with you, if you think you can and know how to build it because I want someone who would be dedicated to this and could give me their input and skills. Also will you show this Dream Calc idea thing your talking about?

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Other Calculators / Re: Build your own Z80 calculator
« on: September 26, 2011, 05:25:03 pm »
So guys I'm putting together a list of stuff I might need to make this thing. Feel free to suggest different places to buy  stuff and if you think I should add anything.

Z80 - http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&catalogId=10001&pa=35561&productId=35561&keyCode=WSF&CID=GMC

128K flash rom - for os   using rom because it would not be rewritten alot

Do you guys think I should use eeprom

or

sd card? - http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=WM3472DKR-ND

64k ram chip - ?

LCD - ?

i/o chip - ?

You guys are going to have to help me with this thing because I know your all super geniuses and stuff and I, no we will build this thing together so how about it? Will we build this thing for all the nerdy people who want an affordable calculator with a lot of memory!? :)

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Other Calculators / Re: Build your own Z80 calculator
« on: September 25, 2011, 10:16:17 pm »
@Ashbad Not all of us want to spend $100000000+ on a ti 84+. Yes I am being I hypocrite because I would have to spend money to make this home made calculator. But it also may be cheaper than buying a ti 84+ SE because of the old technology these calculators have you could probably build it for not that much. :)

@Everyone thanks for your feedback!

@DJ_O Thanks ! :)

I don't think I said before but I have experience in electronics.

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Other Calculators / Re: Build your own Z80 calculator
« on: September 25, 2011, 07:11:06 pm »
Hey camnedmil are you by any chance this guy? http://benryves.com/projects/z80computer

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Other Calculators / Build your own Z80 calculator
« on: September 25, 2011, 01:28:26 pm »
Hi everybody! I'm new here I'm starting to learn z80 assembly for the ti 83+. I was wondering if it would be possible to build your own calculator with a z80 microprocessor and some sort of screen similar to the ti calculators screen. Wouldn't you have to put the ti-os on it to run programs and such? If this is even possible we could probably add more memory to the home made calculator. Unless that would cause you to have to rewrite the ti os or something to support more memory. I don't know if this is just stupid or if some one has asked before. But all feedback is appreciated!  ;D (Sorry if this is dumb or impossible)

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