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File name:cd changer protocol.pdf
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Size:234 kB
MD5 Checksum:a8e528c76f7d1a0f4056a5393b18e3ef




Original Chassis:
Descr:CD changer cable wiring diagram
Group:Electronics > Automobile >
Uploaded:2006-07-10 12:46:35
Multipart:No multipart

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cd changer protocol.pdfPage 1 of 13 Blaupunkt ( DMS ?? ) for controlling a Blaupunkt car radio. It is basically a 2 wire (rx/tx) async. serial protocol with 9 bits of data where the 8th bit is used for synchronisation. That made it easy to interface it to a player or PC because you can use the serial port. The only documents that're left is one sheet of paper containing the initial communication between a cd changer and the radio and the source code. Here is the protocol cut: radio baudrate 4800 0x17B 0x17C 0x17D 0x17E 0x17F 0x180 0x48 0x02 0x14F 0x180 0x9F 0x14F 0x180 0xA1 0x14F 0x180 0xAD 0x14F 0x180 0x48 0x01 0x14F 0x10F 0x48 0x01 0x14F 0x103 (3 times ) -> (3 times ) -> (3 times ) -> (3 times ) -> (3 times ) -> -> -> -> direction,info changer no response no response no response no response no response 0x180 0x48 0x02 no response 0x180 0x9F no response 0x180 0xA1 no response 0x180 0xAD no response 0x180 0x48 0x01 no response 0x10F 0x48 0x01 0x14F 0x103 ->, change in baudrate to 9600 -> -> -> -> -> ->

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