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msgcount

Return the number of messages in a read-enabled channel queue

Syntax

• msgcount(rx,'channel')
  

Description

msgcount(rx,'channel') returns the number of unread messages in the read-enabled queue specified by channel for the RTDX link rx. You cannot use msgcount on channels configured for write access.

Examples

If you have created and loaded a program to the target processor, you can write data to the target, then use msgcount to determine the number of messages in the read queue.

1. Create and load a program to the target.
2. Write data to the target from MATLAB.

• indata=1:100;
  writemsg(cc.rtdx,'ichannel', int32(indata));
  

3. Use msgcount to determine the number of messages available in the queue.

• num_of_msgs = msgcount(cc.rtdx,'ichannel')
  

See Also
read, readmat, readmsg

load

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