ABC Office MC-1, DC-2 manual Send IR Command Example, Cmd

Lexicon, Inc.
DC-2/MC-1 Serial Communications Protocol						Printed on: 10/19/00
SOP	DLL DC	CMD	App DC	DATA0	EOP
				Cmd
F1	04	E0	01	2E	F2

Because the DC-2/MC-1 received and processed the command successfully the DC-2/MC-1 responds with the DC_ACK packet. Here we see that the ACK packet is responding to the DC_CMD_SET_INPUT_NAME command.

15.5.4 Send IR Command Example

SOP	DLL DC	CMD	AppDC	DATA0	EOP
				IR Key
				Code
F1	04	14	01	17	F2

This example shows how to transmit the IR command for “Volume Up”. The bytes are transmitted from left to right and they are defined as: Byte 0: Start of Packet(F1 hex)

Byte 1: Data Link Layer(DLL) Data Count(DC); for an IR command this would be 4 bytes to follow

Byte 2: The Application Layer Command, in this case it is 14 hex indicating this is an IR command packet.

Byte 3: The Application Layer Data Count(DC); for this packet it is 1 data byte to follow.

Byte 4: The Application Command Data: This IR Command Packet is transmitting Key Code “Volume Up”(17 hex). To transmit other IR Key Codes the user would replace this byte with other IR key codes as found in Appendix C DC-2/MC-1 IR-Codes.

Byte 5: End of Packet (F2 hex)

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