I have decoded serial data that transmit by master clock. This signal receives all slave clocks to display. In data packet, 1st and 5th are constant, 2nd to 4th are HH:MM:SS respectively.i cant understand 6th and 7th bytes. If the packet is not correct, receiver does not responce. Here are some data packets to your consideration …please help me… 0x7e 0x00 0x00 0x00 0x00 0x0c 0x0a
0x7e 0x00 0x00 0x01 0x00 0x0d 0x9a
0x7e 0x00 0x00 0x02 0x00 0x0d 0x6a
0x7e 0x00 0x00 0x03 0x00 0x0c 0xfa
0x7e 0x00 0x00 0x04 0x00 0x0e 0xca
0x7e 0x00 0x00 0x05 0x00 0x0f 0x5a
0x7e 0x00 0x00 0x06 0x00 0x0f 0xaa
0x7e 0x00 0x00 0x07 0x00 0x0e 0x3a
0x7e 0x00 0x00 0x08 0x00 0x0b 0xca
0x7e 0x00 0x00 0x09 0x00 0x0a 0x5a
0x7e 0x00 0x00 0x10 0x00 0x01 0xca
0x7e 0x00 0x00 0x11 0x00 0x00 0x5a
0x7e 0x00 0x00 0x12 0x00 0x00 0xaa
0x7e 0x00 0x00 0x13 0x00 0x01 0x3a

Tryed many ways, but nothing worked for me.