Lexicon MC-12 用户指南

Lexicon 
MC-12 Serial Communications Protocol 

 

Printed on: 07/13/05 

TimeStamp: 

Is a null terminated ASCII text string describing the build date and time of the 
current software build.  The Format of this text string is: 

 “yy/mm/dd(sp)hh:mm” 
 

yy- is the last two digits of the year (i.e. year 2001=01, year 2002 = 02) 

 

mm - is the month 

 

dd- is the day 

 

(sp) - is an ASCII space character (0x20) 

 

hh - is the hour 

 

mm - is the minute 

 
SerialNumber: 

The Serial Number is an unsigned 32 bit integer holding the unique value of the 
current unit.   

 

This command allows the HOST to transmit IR command key codes to the MC-12.  

7.3.40.1  Command Packet Description 

  

Application Header: 
Command MC_CMD_IR 0x39 
Data Count 

1 

0x01 

  

Data[0] KeyCode nn 

 

7.3.40.2 Data Description 

 KeyCode: 
 

 

Data Type: 

Unsigned 8 bit integer. 

  Valid 

Values: 

7.3.40.3 MC-12 Response 

The KeyCode is processed as a valid IR code.  No acknowledgment will be sent from MC-12. 

7.3.40.4 Data Validation 

The KeyCode data will be verified as a legal IR code.  If the Code is not valid the MC-12 will not respond. 

Request to MC-12 for the current value of a given parameter.  The MC-12 will respond with a “Parameter 
Value Packet”. 

7.3.41.1  Command Packet Description 

  

Application Header: 
Command MC_CMD_GET_PARAM_VALUE_BY_ID 

0x3A 

Data Count 

2 

0x02 

  

Data[0] ParamId 

(LSB) 

nn 

Data[1] ParamId 

(MSB) 

nn 

 

7.3.41.2 Data Description 

© 2005 Harman Specialty Group All rights reserved. 

 

43 of 106