Error with running in External Mode for TI c2000 processors (28377D)

Hi everyone,

I am running Simulink model in the external mode for TI c2000 28377D processors.

I am getting this error. I don't know how to address this issue. Can anyone help me with this? Thank you very much in advance.

Regards, Jianwei

Component:Simulink | Category:Block warning Error occurred while executing External Mode MEX-file 'ext_comm': ExtTargetPktPending() call failed while checking for target pkt Component:Simulink | Category:Block diagram error Error occurred while executing External Mode MEX-file 'ext_comm': ExtSetTargetPkt() call failed on CLOSE. Ensure target is still running Component:Simulink | Category:Block diagram error

Simulink cannot send a start packet to the model 'IN_SVM_DSP_new20170223' running in external mode, as the target has lost its connection with the host. Component:Simulink | Category:Block diagram error