RE: [N8VEM: 18875] Re: Vintage + modern = fun

Subject: RE: [N8VEM: 18875] Re: Vintage + modern = fun

Date: Sun, 19 Oct 2014 22:32:23 -0400

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Hi James!

Thank a bunch. I appreciate it. Thank really helps. I’ll download my BDS-C compiler again and compile MMU.C and BMPTEST.C and get me a picture! Then I’ll be ready for the new board! Whoo-Hoo!

Kip Koon

compu...@sc.rr.com

http://www.cocopedia.com/wiki/index.php/Kip_Koon

http://computerpcdoc.com/

From: n8...@googlegroups.com [mailto:n8...@googlegroups.com] On Behalf Of James Moxham
Sent: Sunday, October 19, 2014 9:45 PM
To: n8...@googlegroups.com
Subject: Re: [N8VEM: 18875] Re: Vintage + modern = fun

Hi Kip,

The smaller touchscreen boards all seem to run on 3.3V so you should be ok there. I found a few that were larger that used 5V so that is why the link is there for either voltage.

The new board (which should be in the air by now) has a single DC power socket for 5V. I've built a lot of boards with onboard regulators but more recently I have found regulated 5V wall warts are so cheap it is easier to use these. eg $2.58 http://www.ebay.com.au/itm/AC-100-240V-DC-5V-1A-Charger-Power-Supply-Switching-Adapter-5-5-x-2-1MM-US-EBAU-/261543639800?pt=AU_Gadgets&hash=item3ce5373af8

BTW the new board is going to need new software and new fpga code as the aim is to dump out 16 bits at a time - I'll need to write that code soon!

Plus the code to use the second ram - Max might be able to give us a 1mb ram disk.

I posted off all the orders that came in over the weekend.

Cheers, Jams

On Mon, 20 Oct 2014 11:15:56 +1030, Kip Koon <compu...@sc.rr.com> wrote:

Hi James!
I finally have v1.08 operational of the Multicomp Interface PCB and I was wondering how you are getting 5V to the 2.4” TFT LCD display or can it run off 3V? I can’t seem to find a 5V power supply readily available. The nearest voltages I find are 4.5V or 6V. I’m currently using a 6V power supply. I’d like to have a LM7805 on the PCB to run the LCD screen, but there is no space. I’m not sure how to determine the inside and outside diameters of DC power jacks to buy one off ebay. I don’t remember the parameters of the one I used. Are there any helps available along these lines? Any ideas? Thanks in advance!

Kip Koon
compu...@sc.rr.com
http://www.cocopedia.com/wiki/index.php/Kip_Koon
http://computerpcdoc.com/

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