CLOCKAUDIO MR88 Automatic Microphone Mixer RS232 Programming Version 4.2 Clockaudio Limited, 9 Stratfield Park Elettra Avenue, WATERLOOVILLE Hampshire. UK Tel : +44 (0)2392 251193 Fax : +44 (0)2392 251201 Email : sales@clockaudio.demon.co.
CONTENTS INTRODUCTION ............................................................................................................ 3 RS232 Physical Parameters .............................................................................................. 3 RS232 Packets .................................................................................................................. 3 Checksum ....................................................................................................................
INTRODUCTION The purpose of this manual is to assist programmers in successfully writing code to control the MR88 automatic mixer. This manual describes the RS232 interface to the MR88 automatic mixer. When more than one MR88 is linked via the Link In/Out connectors, the RS232 control will extend through the link. Any MR88 in the chain can be used as the RS232 input. The MR88’s are automatically addressed from 1 to n.
Data Field Commands are sent in the form Address Command Data 1 byte 1 byte N bytes All commands respond as follows Address Command Data 1 byte 1 byte OR 0x80 N bytes Page 4
Commands Command Number Command 0x00 Get Output Channel 0x01 Get Input Channel 1 0x02 Get Input Channel 2 0x03 Get Input Channel 3 0x04 Get Input Channel 4 0x05 Get Input Channel 5 0x06 Get Input Channel 6 0x07 Get Input Channel 7 0x08 Get Input Channel 8 0x09 Get System Settings 0x0A Get Monitor Settings 0x0B Get Status and Meters 0x0C Set Output Channels 0x0D Set Input Channel 1 0x0E Set Input Channel 2 0x0F Set Input Channel 3 0x10 Set Input Channel 4 0x11 Set Input C
Get Output Channels Command 0x00 Byte Name Value Detail 1 Address Byte Address 2 Command 0x00 Get Output channels Name Value Detail 1 Address Byte Address 2 Command 0x80 Get Output Channels Ack 3 Gain A 0xC4 – 0x00 -60dB to 0dB 4 Gain B 0xC4 – 0x00 -60dB to 0dB 8 Source A 0x00 – 0x03 0x00 = Off 0x01 = Channel X 0x02 = Channel Y 0x03 = Channel X+Y 9 Source B 0x00 – 0x03 0x00 = Off 0x01 = Channel X 0x02 = Channel Y 0x03 = Channel X+Y Response from MR88 Byte Example to g
Get Input Channels All input channel Get commands are of the form Byte Name Value Detail 1 Address Byte Address 2 Command 0x01 – 0x08 Get Input Channel 1 - 8 Where command is Command Description 0x01 Get Input Channel 1 0x02 Get Input Channel 2 0x03 Get Input Channel 3 0x04 Get Input Channel 4 0x05 Get Input Channel 5 0x06 Get Input Channel 6 0x07 Get Input Channel 7 0x08 Get Input Channel 8 Page 7
Response from MR88 Byte Name Value Detail 1 Address Byte Address 2 Command 0x81 – 0x88 Get Input Channel n Ack 3 Mono/Stereo 0x00 – 0x01 0x00 = Mono 0x01 = Stereo 4 Input Level 0x00 – 0x02 0x00 = Mic + Phantom 0x01 = Microphone 0x02 = Line 5 Input Gain 0xD8 – 0x14 -40db – +20dB 6 Compression 0x00 – 0x09 0 = Off 9 = Max 7 Eq Low 0xF4 – 0x0C -12dB – +12dB 8 Eq High 0xF4 – 0x0C -12dB – +12dB 9 Output to 0x00 – 0x03 0 = Off 1 = Bus X 2 = Bus Y 3 = Bus X and Bus Y 10 Prio
Example to get the input settings for Channel 1 from Mixer address 3 :0x7E, 0x03, 0x01, 0xFB, 0x7D The mixer would respond with, for example :0x7E, 0x03, 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x03, 0x01, 0x0C, 0x00, 0xEC, 0x02, 0x01, 0x79, 0x7D Page 9
Get System Command 0x09 Byte Name Value Detail 1 Address Byte Address 2 Command 0x09 Get System Name Value Detail 1 Address Byte Address 2 Command 0x89 Get System Ack 3 Priority 1 0x00 – 0x01 0x00 = Inclusive 0x01 = Exclusive 4 Priority 2 0x00 – 0x01 0x00 = Inclusive 0x01 = Exclusive 5 Priority 3 0x00 – 0x01 0x00 = Inclusive 0x01 = Exclusive 6 Priority 4 0x00 – 0x01 0x00 = Inclusive 0x01 = Exclusive 7 Last Channel On 0x00 – 0x01 0x00 = Disabled 0x01 = Enabled 8 Co
Byte Name Value Detail 14 VCA 0x00 – 0x04 0x00 = VCA1 to OFF, VCA2 to OFF 0x01 = VCA1 to ChA, VCA2 to OFF 0x02 = VCA1 to ChB, VCA2 to OFF 0x03 = VCA1 to ChA+B, VCA2 to OFF 0x04 = VCA1 to ChA, VCA2 to ChB 15 Locked 0x00 – 0x01 0x00 = Unlocked 0x01 = Locked Example to get the system settings from Mixer address 2 :0x7E, 0x02, 0x09, 0xF4, 0x7D The mixer would respond with, for example :0x7E, 0x02, 0x89, 0x01, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x00, 0x00, 0x00, 0x00, 0x64, 0x7D Page 11
Get Headphone Monitor Command 0x0A Byte Name Value Detail 1 Address Byte Address 2 Command 0x0A Get Monitor Name Value Detail 1 Address Byte Address 2 Command 0x8A Get Monitor Ack 3 Left 0x00 – 0x09 Left channel source 4 Right 0x00 – 0x09 Right channel source 5 Gain 0xC4 – 0x00 -60dB to 0dB Response from MR88 Byte Where left and right sources are Source Description 0x00 Input Channel 1 0x01 Input Channel 2 0x02 Input Channel 3 0x03 Input Channel 4 0x04 Input Ch
Example to get the monitor settings from Mixer address 2 :0x7E, 0x02, 0x0A, 0xF3, 0x7D The mixer would respond with, for example :0x7E, 0x02, 0x8A, 0x01, 0x01, 0xEC, 0x85, 0x7D Page 13
Get Channel Meters and Status Command 0x0B.
Byte 14 Name Value Detail Disabled Channels 0x00 – 0xFF A 1 in the corresponding bit position indicates that the channel is detected, but disabled. Bit 0 = Channel 1 Bit 1 = Channel 2 Bit 2 = Channel 3 Bit 3 = Channel 4 Bit 4 = Channel 5 Bit 5 = Channel 6 Bit 6 = Channel 7 Bit 7 = Channel 8 15 Overload 0x00 – 0x01 0x00 = No overloads 0x01 = An input or output channel is overloaded.
Set Output Channels Command 0x0C Byte Name Value Detail 1 Address Byte Address 2 Command 0x0C Set Output Channels 3 Gain A 0xC4 – 0x00 -60dB – 0dB 4 Gain B 0xC4 – 0x00 -60dB – 0dB 5 Source A 0x00 – 0x03 0x00 = Off 0x01 = Channel X 0x02 = Channel Y 0x03 = Channel X+Y 6 Source B 0x00 – 0x03 0x00 = Off 0x01 = Channel X 0x02 = Channel Y 0x03 = Channel X+Y Name Value Detail 1 Address Byte Address 2 Command 0x8C Set Output Channels Ack Response from MR88 Byte Example to set
Set Input Channels All Set input channel commands are of the form Byte Name Value Detail 1 Address Byte Address 2 Command 0x0D – 0x14 Set Input Channel 1 – 8 3 Mono/Stereo 0x00 – 0x01 0x00 = Mono 0x01 = Stereo 4 Input Level 0x00 – 0x02 0x00 = Mic + Phantom 0x01 = Microphone 0x02 = Line 5 Input Gain 0xD8 – 0x14 -40db – +20dB 6 Compression 0x00 – 0x09 0 = Off …..
Byte Name Value Detail 14 Hold Time 0x00 – 0x05 0 = 50mS 1 = 100mS 2 = 200mS 3 = 500mS 4 = 1S 5 = 2S 15 NOMA 0x00 – 0x01 0 = Exclude from Noma 1 = Include in NOMA Where command is Command Description 0x0D Set Input Channel 1 0x0E Set Input Channel 2 0x0F Set Input Channel 3 0x10 Set Input Channel 4 0x11 Set Input Channel 5 0x12 Set Input Channel 6 0x13 Set Input Channel 7 0x14 Set Input Channel 8 Response from MR88 Byte Name Value Detail 1 Address Byte Address 2 Comman
Example to set Channel 1 to Mono, Line level, Gain –10dB, Compression 4, Eq low +6dB, Eq High –6dB, Output to bus Y, Priority 2, Gate level 20dB, Detector type Manual, Detector level –25dB, Hold time 200mS, NOMA Exclude for Mixer Address 2 :0x7E, 0x02, 0x0D, 0x00, 0x02, 0xF6, 0x04, 0x06, 0xFA, 0x02, 0x02, 0x16, 0x02, 0xE7, 0x02, 0x00, 0xEF, 0x7D The mixer would respond with :0x7E, 0x02, 0x8D, 0x70, 0x7D Page 19
Set System Command 0x15 Byte Name Value Detail 1 Address Byte Address 2 Command 0x15 Set System 3 Priority 1 0x00 – 0x01 0x00 = Inclusive 0x01 = Exclusive 4 Priority 2 0x00 – 0x01 0x00 = Inclusive 0x01 = Exclusive 5 Priority 3 0x00 – 0x01 0x00 = Inclusive 0x01 = Exclusive 6 Priority 4 0x00 – 0x01 0x00 = Inclusive 0x01 = Exclusive 7 Last Channel On 0x00 – 0x01 0x00 = Disabled 0x01 = Enabled 8 Code 1 0x00 – 0x09 1st Code digit 1 – 9 9 Code 2 0x00 – 0x09 2nd Code digit 1
Response from MR88 Byte Name Value Detail 1 Address Byte Address 2 Command 0x95 Set System Ack Example to set mixer address 2 to Priority 1 exclusive priority 2 – 4 inclusive, Last Channel On = true, Code = 2345, Control outputs active high, Control inputs to Force off, VCA = off, Unlocked 0x7E, 0x02, 0x15, 0x01, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x00, 0x00, 0x00, 0x00, 0xD8, 0x7D The mixer would respond with :0x7E, 0x02, 0x95, 0x68, 0x7D Page 21
Set Monitor Command 0x16 Byte Name Value Detail 1 Address Byte Address 2 Command 0x16 Set Monitor 3 Left 0x00 – 0x09 Left channel source 4 Right 0x00 – 0x09 Right channel source 5 Gain 0xC4 – 0x00 -60dB – 0dB Where left and right sources are Source Description 0x00 Input Channel 1 0x01 Input Channel 2 0x02 Input Channel 3 0x03 Input Channel 4 0x04 Input Channel 5 0x05 Input Channel 6 0x06 Input Channel 7 0x07 Input Channel 8 0x08 Output Channel A 0x09 Output Chan
Note if the left and right channels are set differently they must be to the same input or output channel pair.
Set Defaults Command 0x17 Byte Name Value Detail 1 Address Byte Address 2 Command 0x17 Set Factory Defaults Name Value Detail 1 Address Byte Address 2 Command 0x97 Set Factory Defaults Ack Response from MR88 Byte Example to restore the factory defaults for mixer address 2 0x7E, 0x02, 0x17, 0xE6, 0x7D The mixer would respond with :0x7E, 0x02, 0x97, 0x66, 0x7D Page 24
Get Version Command 0x7F Byte Name Value Detail 1 Address Byte Address 2 Command 0x7F Get Version Response from MR88 Byte Name Value Detail 1 Address Byte Address 2 Command 0xFF Get Version Ack 3 ID1 0x02 4 ID2 0x01 5 Hardware Version 0x00 – 0xFF Currently 4 6 Hardware State 0x00 – 0xFF Currently 2 7 Boot Version 0x00 – 0xFF Currently 1 8 Firmware Major 0x00 – 0xFF Currently 4 9 Firmware Minor 0x00 – 0xFF Currently 2 Example to get the version for mixer addr
