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Just lost two controllers... can't upload firmware

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deweycooter View Drop Down
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Joined: 14 Oct 2007
Location: League City, TX
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  Quote deweycooter Quote  Post ReplyReply Direct Link To This Post Posted: 26 Dec 2009 at 8:50pm
That's interesting - I'm interested in seeing if I can resurrect my ACx16 too...
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LightsOnLogan View Drop Down
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  Quote LightsOnLogan Quote  Post ReplyReply Direct Link To This Post Posted: 26 Dec 2009 at 9:02pm
Another possibility here... could the RS-485 chips be experiencing thermal issues leading to data corruption on those controllers (and subsequent crashes)?

I'm trying to isolate it now... I did some PIC swapping.  We'll see if it follows the PIC or not.


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LightsOnLogan View Drop Down
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  Quote LightsOnLogan Quote  Post ReplyReply Direct Link To This Post Posted: 27 Dec 2009 at 11:55am
The problem DID NOT follow the PIC microcontroller!  #40 and #43 still decided to lose it even after PIC replacement.

I'm now moving around RS-485 COM chips to see what happens.  I did notice that they were the old Intersil ones that some have reported problems with instead of the Texas Instruments (now Maxim?) ones.

I need more lights on the mini trees... I can't see them in the daylight unless I'm right on top of them!
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  Quote LightsOnLogan Quote  Post ReplyReply Direct Link To This Post Posted: 27 Dec 2009 at 7:47pm
As I noted in the D-Light forums, it seems that replacing the RS-485 transceiver chips stopped the EEPROM corruption. 
 
I hope that was it anyway... no falures for seven and a half hours.
 
If you are having issues, you might want to check your transceiver chips.
 
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