DAP Technology 1394, Руководство по эксплуатации

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Mil1394 Protocol support
258 Copyright © DapTechnology B.V., 2005-2019 - All Rights Reserved., 5/20/2019
return p
//-------------------------------------------------------------------------------
int32 createMil1394Packet ( int32 channel )
// Create a packet buffer
int32 p = newPacket ( 512 )
// Set the packet data from the Data Editor
fillPacket ( p, HEADER_EMPTY_STREAM, Mil1394_PACKETDATA )
fillPacketHeader ( p, HEADER_EMPTY_STREAM )
fillPacketData ( p, Mil1394_PACKETDATA )
// Set the channel
setPacketHeaderFields ( p, channel )
setPacketHeaderField ( p, 0 , 18 , 6 , channel )
// Set packet speed
setPacketSpeed ( p, SPEED )
// Enable auto VPC calculation
enableAutoVPC ( p, true )
return p
Data definitions
Data Objects are used for setting the packet contents to the correct formats. The pictures below show the
data definitions used by the script. The first picture shows the header of a stream packet. The second
picture shows the packet contents of a Mil1394 STOF packet and the third picture shows the packet
contents of a standard Mil1394 Stream packet. Note that all fields are just set to zero and that the data
objects' only purpose is to set the correct format, not the contents. If you like to send packets that do
contain some data values, you can changed the fields in these data definitions.
Stream Header
The channel field will be set by the script code itself. Therefore this header can be used by both the STOF
packet and the Mil1394 data packet.