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Wireless Downloading

 
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liam.zbasic



Joined: 25 Mar 2008
Posts: 143
Location: Southern California (Blue)
Posted: 22 April 2010, 6:15 AM    Post subject: Reply with quote
To the Zbasic developers, what is the most reliable and recommended off-the-shelf system under $100 that enables wireless communication between ZX chips and the SerialPort-WindowsXP-ZbasicIDE setup to replace the serial cable? There's been some discussion on this, but I'm really looking for something that works right out of the box. The serial cable is robust & reliable but not amenable moving robots. Thanks.
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dkinzer
Site Admin


Joined: 03 Sep 2005
Posts: 2499
Location: Portland, OR
Posted: 22 April 2010, 14:49 PM    Post subject: Reply with quote
liam.zbasic wrote:
what is the most reliable and recommended off-the-shelf system under $100 that enables wireless communication between ZX chips and the SerialPort-WindowsXP-ZbasicIDE ?
A pair of XBee radios ($23 each) and a pair of adapter boards (~$10 each) fits in your budget and they seem to work quite well. See Lady Ada's page for more information: http://www.ladyada.net/make/xbee

There are two caveats, however. You do need an updated IDE to be able to specify using a fixed speed during the download process and, secondly, you need to use a wired setup to initially set the ATN character. Although the updated IDE isn't officially released yet, I can post it for you to experiment with.
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GTBecker



Joined: 18 Jan 2006
Posts: 457
Location: Cape Coral
Posted: 22 April 2010, 17:57 PM    Post subject: Reply with quote
Having spent the last few months working with wireless ZX-24 downloading, I recommend that you have a backup method ready. I brought a DB9F out to as convenient a location as I could muster to recover from the inevitable wireless download failure.

A wireless download failure will probably leave your processor with no operating code - not even your ATN-character-sensing code - so the machine will no longer respond except to a hardware ATN signal. Alternatively, you can remove the processor (assuming it's socketed) and program it in a breadboard.

Tom
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liam.zbasic



Joined: 25 Mar 2008
Posts: 143
Location: Southern California (Blue)
Posted: 22 April 2010, 20:30 PM    Post subject: Reply with quote
Wow, ladyada.net is a breathe of fresh air, what a neat resource. Regarding the Zbasic IDE, I think I'll wait for the next update, unless the official release is more than a month away.
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