Chamsys MagicQ User Manual Bedienungsanleitung PDF herunterladen (Seite 270)

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32.2 Writing to the network port

Commands are transmitted from the network port using the Y macro in the Macro ﬁeld of the Cue Stack window (use Page Right

to ﬁnd the Macro ﬁeld). In the View Settings view of the Setup Window, set the Ethernet Remote Protocol to “ChamSys Rem

tx”.

The format of Ethernet commands is Y followed by the data. To send Ethernet data, the Y command must be the only macro

command in the macro ﬁeld. The Y command is followed by ASCII data contained within “ “ or ‘ ‘ or by decimal values

separated by commas. For example to send Hello World followed by a carriage return:

Y”Hello World”,10,13

To send the hexadecimal data stream 00 01 02 03 04

Y0,1,2,3,4

To send text only:

Y”abcedf”

To send several lines of text:

Y”Hello”,10,13,”World”,10,13

On the Ethernet the data above is encapsulated in the data ﬁeld of ChamSys Ethernet Remote Protocol in the UDP packet.

Note that commas ‘,’ are not allowed within the ASCII data inside “ “ or ‘ ‘ . If you wish to send ‘,’ then you must send it as its

hexadecimal ASCII code.

32.3 Reading from the network

By default data received on the network is ignored. This can be changed to make MagicQ accept remote commands received on

the network port. In Setup, View Settings, set the Ethernet Remote Protocol to “ChamSys Rem rx”.

ChamSys Remote Protocol consists of simple commands consisting of a list parameter values separated by commas ‘,’ and ending

in a character A to Z (or a to z). Commands can contain spaces, tabs, and carriage returns; they are all ignored. See the section

on ChamSys Remote Protocol for further details.

32.4 Sample code fragments

The code fragments below show you could connect to MagicQ using simple C programming.

#define REMOTE_ETHER_PORT 0x1999

#define MAX_CREP_MSG 1000

typedef struct \{

long32 chamsys;

word16 version;

byte seq_fwd;

byte seq_bkwd;

word16 length;

byte data;

} remote_ether_message_t;

int remote_ether_sock = 0;

word16 remote_ether_fwd = 0;

word16 remote_ether_bkwd = 0;

int remote_ether_init(void)

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Chamsys MagicQ User Manual Bedienungsanleitung Seite 270