View source for HTD MC-66 Multi-Zone Controller

Sold by Home Theater Direct (http://www.htdirect.com).

Provides matrix switching 6 input: 6 ouput.  Any source to any/all outputs.  Party mode where all sources link to one input.  Volume, treble, bass adjustments handled in-line.

==  Serial Interface ==

 RS-232 Serial Interface
 MC66 & MCA66 Controller Interface Hardware Specification
 Protocol:
 Baud rate:	38400 bps
 Data Bit: 8 Bits
 Stop Bit: 1 Bits
 Parity: None
 Flow Control:No
 Connectors & Pins Defined:
 Controller Connector: 9-pin female
 DB PC Connector:      9-pin male DB
 PC Connector          Controller Connector
 Pin 2 RxD  <--------  TxD Pin 2
 Pin 3 TxD  -------->  TxD Pin 3
 Pin 5 Gnd  ---------  Gnd Pin 5

 Interface Software Specification
 Tx Format (Controller Internal Status)
 Flow Control : No
 Tx Format :
 Head Code + Reserved Byte + Zone  Address + Command + Data1 + Data2 + Data3 + Data4 + Data5 + Data6 + Data7 + Data8 + Data9 + CheckSum
 Checksum = Head Code + Reserved Byte + Zone Address + Command + Data1 + Data2 + Data3 + Data4 + Data5 + Data6 + Data7 + Data8 + Data9




== Example Control Code provided by manufacturer ==

Example of C Code written to turn the Volume Up in one Zone of the MCA66 Controller through the RS232 Serial Port

This particular example was written for use in a Lantronix Network-to-RS232 Controller, but it should still be helpful.

Note: Although this was written to send commands to the MC66 & MCA66 Controllers, aside from specific differences in the calls, it should also be useful in understanding how to write a similar C program for the Lync systems.

 void sendVolUpToHW(BYTE zoneNum) 
 {
 sendCMD_0x04(zoneNum, 0x09);
 } 

 void sendCMD_0x04(BYTE zoneNum, BYTE data) 
 {
 BYTE cmd[6];
 cmd[0] = 0x02;
 cmd[1] = 0x00;
 cmd[2] = zoneNum + 1; // hardware is one-based index
 cmd[3] = 0x04;
 cmd[4] = data; 
 cmd[5] = cmd[0]+cmd[1]+cmd[2]+cmd[3]+cmd[4]; 
 serialSend(0, cmd, 6); 
 nice();
 } 

 static int serialSend(int chan, BYTE *buf, int len) {
 TCB save; 
 CCB *saveCCB;
 BYTE *ptr;
 int i;
 /* Save the current associated stream */
 memcpy(&save, ActPro, sizeof(TCB));
 saveCCB = ActCCB;
 /* Set to new channel and send data */
 ActPro->CCB_Ptr = &AllCCB[chan];
 ActPro->Chan_Nr = chan;
 ActPro->IO_Ptr = AllCCB[chan].IOPtrs;
 ActCCB = &AllCCB[chan];
 FlushIn();
 sendblk(buf, len);
 /* Restore old stream */
 memcpy(ActPro, &save, sizeof(TCB));
 ActCCB = saveCCB;
 return(len);
 }

[[Category:Audio]]