ADSP-21573 Debug timeout


I had a problem with the custom board (adsp-21573 +MCU) simulation.The simulator type is ice-1000.

When the board is powered on, MCU controls SYS_HWRST pin and reset DSP.When I start debugging for a while, CCES will pop up the warning "Timeout waiting for processor to halt".

The following is the waveform captured by the logic analyzer:

I don't have this question on the sc573-ezkit evaluation board.

May I ask what is the possible cause of this?