| xPC Target | |
www.kxcad.net Home > CAE Software Index > MATLAB Index >
Condor PCI-1553 Bus Controller (BC) Send block
xPC Target Library for MIL-STD-1553
This block sends a list of messages to the specified channel on the board. Before you construct the list of messages:
Allocate space for the list with the Condor 1553 Create BC Message List block.
Fill in information about each message with Condor 1553 Encode BC Message blocks.
Each instance of an Encode BC Message block fills in information for a single message on the list. To ensure that all Encode BC blocks execute before the Bus Controller Send block, daisy chain the Encode BC Message block L signals.
The Bus Controller Send block allocates a list for the reception of messages. This block can
Read the set of messages and statuses from the last time a message was sent before sending the new list.
Send the new list and wait for a response.
In other words, for time step N, the output of the Send block is either the response to time step N-1 or the response to time step N, chosen from the Response mode parameter.
From the list, choose 1 or 2. This is the channel for this command stream.
Choose from
Read response to previous message then send new message — Read the command buffers from the board before sending the new ones.
Send new message then wait and read response — Transmit new message, then wait for response before continuing.
See the Maximum wait time parameter to set the amount of time the block should wait for a response.
Enter the maximum time that this block waits for the message stream to be sent by the board. Use this parameter if the Response mode parameter is set to Send new message then wait and read response.
A reasonable maximum wait time is 1000 microseconds (1 millisecond). Note, this value should not exceed the sample time except for failsafe instances. Exceeding the sample time will trigger an execution overload.
Enter the base sample time or a multiple of the base sample time.
If only one board of this type is in the target PC, enter
-1
to automatically locate the board.
If two or more boards of this type are in the target PC, enter the bus number and the PCI slot number of the board associated with this driver block. Use the format [BusNumber, SlotNumber]. To determine the bus number and the PCI slot number, type
getxpcpci
| | Condor 1553 Select BM Message | Condor PCI-1553 Bus Monitor | |
© 1984-2007 The MathWorks, Inc. • Terms of Use • Patents • Trademarks • Acknowledgments