xPC Target External error

I used xPC Target External Mode

then, click the Model build or model connect, appeared this message

 'Error: Executing the 'Get Time' command produced the following error:
 Target PC1: Malformed Message'

 'Error: Executing the 'Final Upload' command produced the following error:
 Target PC1: Malformed Message'

 'Error: Executing the Check data' command produced the following error:
 Target PC1: Malformed Message'

and warnings in MATLAB command:

 Warning: External Mode Open Protocol SetParam command failed with status 1

 Warning: External Mode Open Protocol Signal Select command failed with status 1

what does this message mean?

[Suneesh]

1. What release of the product(s) are you using?

2. Are you able to ping the target using 'xpctargetping'. Does 'xpctest' pass? If not then there may be a problem with the network connection to the target or maybe the target is in an invalid state (or not booted up).

Answer 1

[Suneesh]

1. Is the host target communication on a network shared by other devices? In that case the non xPC network traffic may be causing an interruption.

2. The default time the software waits for the application to be downloaded onto the target is 5 seconds. You may try increasing this to 30 or 60s. See instructions here:

http://www.mathworks.com/help/releases/R2013b/xpc/ug/how-do-i-increase-the-download-time-out-value.html

Answer 2

[jangwon]

1. xPC Target ver. 5.5 (MATLAB 2013b) 2. yes, xpctargetping and xpctest is successed and then build, messages that appears when you connect to the target. even after this message appears , the target is operating normally.

 Connection time for more than 5 seconds, a message will appear 
 This message is related to the time that connect to target?

Answer 3

[jangwon]

1. I don't used to other device, only connect to xPC target device

2. I had to adjust my computer specs. To remove the effect of animation effects and shadows. and, increased the download time (20s)

 then, These messages are not observed

 Thank you for answer my question

 and one more question

 can I reduce the time to target connect and build(download)?

 Downloading time is not fixed 

 When I download the same model takes time 2-3 seconds, but sometimes it takes more than 10 seconds

 why the download time is different?

[Suneesh]

The only reason I can imagine the download time varies that much is due to heavy load on the host computer. Not necessarily from MATLAB/Simulink but all applications.