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sharp an-ip100 remote
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chuliu



Joined: 04 Dec 2010
Posts: 256
Location: Hong Kong

PostPosted: Sat Jan 23, 2016 11:44 am    Post subject: Reply with quote

chuliu wrote:
Hello,
I compared numeric buttons 1 to 5 on Kaseikyo, changed sharpdvd, and my manual protocol.
Kaseikyo and changed sharpdvd appeared the same.
My manual protocol differes from Kaseikyo and sharpdvd in that :
1. the byte before the lead out (one on,LO) in Kaseikyo is always
(437 -1307) but that byte is always (437,-437) in my manual protocol.

2. the lead out in Kaseikyo and sharpdvd is -75000 and in my manual protocol it is -70000.

I assume something wrong with the check nibble calculation.


I have a correction: Not all signal in my excel workbook shows (437,-437) in the byte before LO. I can only say that they differ. The LO of Kaesiekyo is for sure to be -75000, though.
All the other bytes of numeric 1-5 are the same. Just the byte before LO differs. However, I need to make a more complete check on the three signals.

I will make more comparison later.

Thanks.
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3FG
Expert


Joined: 19 May 2009
Posts: 3224

PostPosted: Sat Jan 23, 2016 6:13 pm    Post subject: Reply with quote

chuliu,
I see what you mean. It looks like the SharpDVDtranslator doesn't calculate checksums correctly for some combinations of device and subdevice. I'll work on fixing that. There's no need for you to spend more time on this right now.
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3FG
Expert


Joined: 19 May 2009
Posts: 3224

PostPosted: Sat Jan 23, 2016 11:04 pm    Post subject: Reply with quote

I've updated the SharpDVDTranslator. I expected to find a coding error in calculating the XORs, but in fact the code was obviously written before we had much understanding of the checksums used in Kaseikyo type protocols. The existing code didn't perform XORs at all.

chului, if you want to test the new Translator, I've uploaded the class file. To use it, use 7Zip or Winzip to open RemoteMaster.jar (note that a jar file is actually just a zip file), and drill down through com\hifiremote\jp1\translate\. Drag the new SharpDVDTranslator.class into 7Zip (or Winzip), and then close 7Zip. A simple verification would be to make a short SharpDVD upgrade with device 8.26 and to enter an OBC of 2. The Hex data should then be BF 7F, and not BF 7E. (Your 01FF executor needs the binary complement -- 40 80 -- for its hex bytes, because it defined 0 and 1 the opposite way to UEI.)
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chuliu



Joined: 04 Dec 2010
Posts: 256
Location: Hong Kong

PostPosted: Sun Jan 24, 2016 12:55 am    Post subject: Reply with quote

Thanks. I tested with my c2 and ir widget and it seems that all bytes are the same except the LO in my file is -70 and in Sharpdvd is -75.

I tried to change protocols.ini to make the LO option 65, but the LO remains the same.
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The Robman
Site Owner


Joined: 01 Aug 2003
Posts: 18131
Location: Chicago, IL

PostPosted: Sun Jan 24, 2016 1:00 am    Post subject: Reply with quote

chuliu wrote:
Thanks. I tested with my c2 and ir widget and it seems that all bytes are the same except the LO in my file is -70 and in Sharpdvd is -75.

I tried to change protocols.ini to make the LO option 65, but the LO remains the same.

The three LO options are hard coded into the executor itself, we just pass an indicator to the executor telling it which one to use. I suspect that the LO produced by the executor will work as -70 and -75 are probably close enough.
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www.hifi-remote.com
Please don't PM me with remote questions, post them in the forums so all the experts can help!
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chuliu



Joined: 04 Dec 2010
Posts: 256
Location: Hong Kong

PostPosted: Sun Jan 24, 2016 5:00 am    Post subject: Reply with quote

Thanks. I asked friend to test on his sharp an-ip100 and all were good. Thanks so much.
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