3. GPIO communication
3.1 Software version and IR DB version checking .
Expected under TV menu, there is one item for this function, to check remote software version
and IR database version. Data exchange method below:
After user make selection on TV, TV will send a ACK packet to IR host via BTH, this will
trigger IR host return s/w version number and IR DB version number. The version number will
be 3 digit: x.y.z (0 <= x, y, z <=0xF), for example: 3.B.2
Payload from TV to IR host will be:
– DeviceID = 0x30 (this data means get s/w version and IR DB version)
– CodesetID xxxx (don’t care)
– KeyID xx (don’t care)
Payload data from IR host to TV will be total 6 bytes, these 6 bytes will follow the single byte
transmit protocol defined in Error! Reference source not found., send from IR host to BT
host one byte by one byte.
1. 0x8x, s/w version
2. 0x8y
3. 0x8z
4. 0x9x’, IR DB version
5. 0x9y’
6. 0x9z’
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