JP1 Remotes

gfb107 · Expert Joined: 03 Aug 2003 Posts: 3411 Location: Cary, NC

urc-6012w0eeprom.txt
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Original RemoteMaster developer
JP1 How-To's and Software Tools
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shorton · Joined: 06 Apr 2005 Posts: 57

Thank you. Scott

shorton · Joined: 06 Apr 2005 Posts: 57

Anyone have the part nunber for the eeprom? Wasn't in the doc.

johnsfine · Posted: Thu Apr 14, 2005 11:51 am Post subject:

Here is one of several threads where that was previously discussed
http://www.hifi-remote.com/forums/viewtopic.php?t=2856&highlight=24c16

The 6012 has only two batteries, which may drop down to 1 volt per battery in normal use before they're too low to use. So make sure you select an eeprom that can be read at 2 volts. Don't worry if the part is spec'ed for lower speed at that low voltage (as some are). As long as it can read at all at low voltage it's fine.

The normal capacity is 2kx8 (16K bits). Selecting exactly that capacity will simplify your use of JP1 software.

If your requirements are really as simple as they seem, an 8K bit eeprom would also work but the price difference is insignificant. A 32Kbit or larger eeprom can also be used (with certain extra setup work required) but I'm sure you have no need at all for such extra capacity.

shorton · Joined: 06 Apr 2005 Posts: 57

Thanks again John. Simple=faster so that's for me. Off to absorb threadnow. Best, Scott

shorton · Joined: 06 Apr 2005 Posts: 57

Ordered a handfull from Mouser. I got :

Microship brand, SOIC-8 2kx8 - 1.8V
http://www.mouser.com/index.cfm?handler=displayproduct&lstdispproductid=529764

Looks like it ought to fit the bill. Hope so.

shorton · Joined: 06 Apr 2005 Posts: 57

Hi guys:

I got a pre-made JP1 cable, and I ordered some eeproms from Mouser. Finally found someplace to get a 6011 to try. I soldered the eeprom onto it today and muddled my way through getting all the right software pieces.

Configured an upgrade for my device, although I was fuzzy on what I was doing. Made me appreciate my MX-700's software <grin>.

Downloaded my first set of test keys, it worked!

Now I just need to find a place to get the 6011's, 8011's or similar cheap and consistently. Too bad my Walmarts don't have them anymore. Any other suggestions on a source? Happy to add the eeproms, it was painless since I have a nice stationary iron with a tiny tip.

And, just wanted to say thanks for the patient help above, much appreciated.

Best,
Scott

shorton · Joined: 06 Apr 2005 Posts: 57

johnsfine · Posted: Mon May 02, 2005 9:16 am Post subject:

The eeprom and the 6-pin header part of the mod is the same.

The jumper you should have added to the 6011 as part of the mod isn't the same. IIRC the 6131 doesn't need a jumper added at all.

shorton · Joined: 06 Apr 2005 Posts: 57

Great, thanks John. Circuit City has these albeit not the cheapest, I can swing by and pick them up as needed. Thanks again, Scott

mr_d_p_gumby · Posted: Mon May 02, 2005 10:23 am Post subject:

If you are referring to the URC-6131NW (as opposed to the older URC-6131), then only the EEPROM & header are required. The EEPROM is installed with pin 1 pointing to the bottom of the remote.
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JP1 Group at Yahoo!, JP1 Files Area

shorton · Joined: 06 Apr 2005 Posts: 57

Thanks Mike, I'll pick one up. I expect it's the NW version. So far, on both the other's I've put the eeprom on (a 6011 and a 8011), the circuit board silkscreen showed the proper IC orientation (head down), but thanks for the tip. Best, Scott

The Robman · Posted: Mon May 02, 2005 12:09 pm Post subject:

shorton · Joined: 06 Apr 2005 Posts: 57

Hi Rob: Thanks for the info. I'm too chicken to order them in quantity, may sit on them too long. My most typical user will be someone who needs a already programmed low end JP1 (i.e. 6011/6131) to use to program their own higer end learning remote (i.e. MX-500). I found the 6131 at the local Circuit City for $12.99, that won't make or break me on one-off's.

Best, Scott