Hitachi TV Remote Controller Signals Decoded- NEC Protocol

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tmadushan
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Hitachi TV Remote Controller Signals Decoded- NEC Protocol

Post by tmadushan » Thu Jan 24, 2013 2:17 am

RKSK ?? ?????? ?? ( https://robot.lk/viewtopic.php?style=3& ... 145#p11145) ?????? ???? ????? ?? ???? ???? ?????. ??? ???? ????? ??? HITACHI CMT 2077 TV ??? CLE-898 remote ????? Tx ??? IR signals ??? ?? PIC KIT 2 Clone ?? ????? ??? decode ???.
Image
?? ????? ???? IR Receiver ??? Pin Configuration ?? ???? ??? ????? ????? sensor ??? ??? ????? ????? ?????? ??? ???? ???????? ??????? ????? ???????? ?????.
HS 0038.png
HS 0038.png (14.32 KiB) Viewed 10235 times
???? ?????? ?? Protocol ?? ??????? ????
IR Tx Protocols ??? ???? ?????? ??????? ????? ???????.
http://www.sbprojects.com/knowledge/ir/index.php

Protocol ??? ?????
• 8 bit address length ?? 8 bit command length.
• address ?? command data ??????? Tx ???? ??????. (reliability ?? ?????? ?????)
• PWM ????? ??????
• 38 KHz ???? ??????? (carrier) ????? ??? ??
• 1.125 ms ?? 2.25ms bit time ????? ??? ?? (???? ???????? ????)

??????? Modulation
necmodulation.gif
necmodulation.gif (2.49 KiB) Viewed 10235 times
PROTOCOL ??? ?? logical 1 ??????? ?????? 560?S ??? AGC Pulse ???? ?? 1690?S ??? Space ??????. ? ??????? logical 1 ??????? ????? 2.25ms bit time ???? ???.
Logical 0 ??????? ?????? 560?S ??? AGC Pulse ???? ?? 560?S ??? Space ??????. ?????? 1.12ms ??.

Protocol ??
nectrain.gif
nectrain.gif (3.69 KiB) Viewed 10235 times
01.png
01.png (19.65 KiB) Viewed 10235 times
?? ????????? Ch2 ?? Ch3 ???? ???.

?? ????? ?????? 9 ms ??? AGC Pulse ???? ?? 4.5ms ??? Space ???? ???? ?????? ? ??????.
???? address ???? command ???? ????. ???? /(address ) ?? /( command) ???? ?????????? ???? ?? ????? ????? address ????? command ????? (Complement) ???????? ??. ?? ???? ????? ??????? Tx ???? ????. ??? ???? ???? ????????????. ????? ?????? ?????????? ??????? ???? ??? ???? ?????????. ( SIRC ????? ????? ???????? ??????? ????? ??) .
address ???? command 8 bit ??????? ???????. ? ??????? ??????? ????? ??????- combinations 255?? (0-28-1) ?? ??????? ??????? ???? ????. ? 255 ?????? ???? ?? Invert ???? byte ???? ????? 16bit protocol ?????? ????? Extended Protocol ????. ????? 256 ?????? 65535?? ????? ??????? ?????????. ? ??? ?????? ?????? ?? ??.
necexttrain.gif
necexttrain.gif (3.7 KiB) Viewed 10235 times
?? ?? decode ???? signals ??????
(0) 0000 1010 1111 0101 0011 0000 1100 1111
(1) 0000 1010 1111 0101 1011 0000 0100 1111
(2) 0000 1010 1111 0101 0111 0000 1000 1111
(3) 0000 1010 1111 0101 1111 0000 0000 1111
(4) 0000 1010 1111 0101 0011 1000 1100 0111
(5) 0000 1010 1111 0101 1011 1000 0100 0111
(6) 0000 1010 1111 0101 0111 1000 1000 0111
(7) 0000 1010 1111 0101 1111 1000 0000 0111
(8) 0000 1010 1111 0101 0010 0000 1101 1111
(9) 0000 1010 1111 0101 1010 0000 0101 1111
(CH_DOWN) 0000 1010 1111 0101 0001 1000 1110 0111
(CH_UP) 0000 1010 1111 0101 1001 1000 0110 0111
(OFF) 0000 1010 1111 0101 1110 1000 0001 0011
(TV/VIDEO) 0000 1010 1111 0101 1001 0000 0110 1111

For More Information,Visit http://www.sbprojects.com/knowledge/ir/nec.php
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Rksk
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Re: Hitachi TV Remote Controller Signals Decoded- NEC Protocol

Post by Rksk » Thu Jan 24, 2013 2:59 am

Nice work bro.. :biggrin: :biggrin:
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tmadushan
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Re: Hitachi TV Remote Controller Signals Decoded- NEC Protocol

Post by tmadushan » Thu Jan 24, 2013 11:04 am

Rksk wrote:Nice work bro.. :biggrin: :biggrin:
Thanks RKSK.... Implementation to a PIC coming up next.. :)
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Neo
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Re: Hitachi TV Remote Controller Signals Decoded- NEC Protocol

Post by Neo » Thu Jan 24, 2013 5:26 pm

Great... ROBOT.LK is the right place for you. Well done!
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Nandika
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Re: Hitachi TV Remote Controller Signals Decoded- NEC Protocol

Post by Nandika » Thu Jan 24, 2013 6:54 pm

Well done bro...Nice :) :biggrin:
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tmadushan
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Re: Hitachi TV Remote Controller Signals Decoded- NEC Protocol

Post by tmadushan » Thu Jan 24, 2013 7:18 pm

Thanks all!! NEO & Nandika ayya :yahoo:
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