Auto-Restart Cosimulation Limitations - Auto-Restart Cosimulation Limitations - 2026.1 English - UG1399

The auto-restart limitations:

• No infinite auto-restart: A finite number of restarts must be specified.
• No support for direct I/O variables.
• Only one instance of hls::autorestart should be created in the test bench. Successive calls should use the operator() of that instance, as shown above.
• No inputs can be changed before the specified number of iterations have been completed.
• No outputs can be observed by the test bench before num_iter iterations have completed.
• Control protocol: Only ap_ctrl_hs is supported; ap_ctrl_chain and ap_ctrl_none are not supported.
• Interfaces: Arrays to Stream FIFO are not supported.
• No support for mailbox.