Sim2 Multimedia DOMINO 55M User Manual
DOMINO 55M
RS-232C
CONTROL
SPECIFICATIONS
Document Revision 1.0 (18 February 2005)
RS-232C CONTROL SPECIFICATIONS
SIM2 DOMINO 55M
Table of Contents
1. INTRODUCTION 3
2. CONNECTION 3
3. COMMUNICATION PROTOCOL 4
HEADER 4
PAYLOAD 4
4. COMMANDS 5
REMOTE CONTROL KEY CODES 5
OPERATION CODES 7
GET CODES 10
5. EXAMPLES 11
6. WARNINGS 12
Revision History:
Revision Date Software Version Description of Change
1.0 21 January 2004 2.44.00 M or higher Initial version.
2
RS-232C CONTROL SPECIFICATIONS
SIM2 DOMINO 55M
1. Introduction
This document describes the communication and data formats used to control SIM2 DOMINO 55M via RS232C port.
2. Connection
Switch off your Personal Computer and DOMINO 55M before connecting RS 232C cable.
Use a standard serial cable with 9 pin female to the Personal Computer and 9 pin male to the DOMINO 55M:
pin 2 connects to pin2, pin 3 to pin 3 and pin 5 to pin 5.
SIM2 DOMINO 55M RS-232C Port is described as follows.
SIM 2 DOMINO 55M E-LINK RS-232C Control Port:
D-SUB 9-pin
(female)
51
96
Switch on the Personal Computer and, after start up, switch on the DOMINO 55M.
Load a suitable communication software onto your Personal Computer, and set the Serial Port Parameters as
shown below.
Pin No Signal Definition
1 N/A Not used
2 TD Transmit data
3 RD Receive data
4 N/A Not used
5 GND Ground
6 N/A Not used
7 N/A Not used
8 N/A Not used
9 N/A Not used
Communication Parameters:
Parameter Value
Transfer Rate 19200 bps
Data Bits 8
Parity Bit None
Stop Bit 1
Flow Control None
Set Send Mode and Read Mode to HEX.
3
RS-232C CONTROL SPECIFICATIONS
SIM2 DOMINO 55M
3. Communication Protocol
The communication protocol is packet oriented. Packets consists of Header and Payload.
There are two types of packets: Event and Operation.
The packet header size is fixed (7 bytes), while the packet payload type and content varies based on the
type of packet: Event payload size is 6 bytes, while Operation payload size is 25 bytes.
The entire packet size is variable, being the sum of the fixed-size packet header and variable-sized packet
payload: Event packet size is 13 bytes and Operation packet size is 32 bytes.
Header
All Packets use the same Packet Header format.
The Packet Header size is fixed at seven bytes.
0xEFBE is a fixed value that is used to insure packet alignment if there are partial packets received or byte
lost. The least-significant byte of the word (BE) is sent first, then the most-significant-byte (EF).
The Packet Type is a number (a byte in length) that defines the type of data in the packet.
The Packet Payload Size is a number (two bytes) that defines the size of the payload portion of the
packet. For a given Packet Type, Packet Size is fixed.
The Packet Checksum (two bytes) is the CRC value for the entire packet (Header and Payload).
0 1 2 3 4 5 6
BE EF
Packet Type Packet Payload Size Packet Checksum (CRC)
Payload
The packet payload format depends on the packet type.
The Event packet payload size is 6 bytes, while the Operation packet payload size is 25 bytes.
Event Packet Format:
0 1 2 3 4 5
Event
Operation Packet Format:
0 1 2 3 4 5 6 7 8 9 10 11 12
Op Type Op ID
13 14 15 16 17 18 19 20 21 22 23 24
00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00
00 00
Op Target
00 00
Op Value
00 00
4
Loading...