TMS320F280049: DCSM: continue with CCS debugger after USER OTP DCSM are programmed

Dear C2000 expert,

Currently I've programed USER OTP for enable DCSM feature, and it works.

But when I trying to connect device through CCS debugger, it shows an error message as below even I have programed right keys.

And I know that if keeping device in BOOT WAIT MODE, it could connect properly, but is it possible to connect device in flash mode? This is because I want to continue to use debugger feature after DCSM enabled.

C28xx_CPU1: Trouble Halting Target CPU: (Error -1156 @ 0x0) Device may be operating in low-power mode. Do you want to bring it out of this mode? Choose 'Yes' to force the device to wake up and retry the operation. Choose 'No' to retry the operation without waking the device. (Emulation package 8.4.0.00006)
C28xx_CPU1: Error: (Error -2134 @ 0x0) Unable to control device execution state. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 8.4.0.00006)
C28xx_CPU1: Error: (Error -1135 @ 0x0) The debug probe reported an error. Confirm debug probe configuration and connections, reset the debug probe, and retry the operation. (Emulation package 8.4.0.00006)
C28xx_CPU1: Unable to determine target status after 20 attempts
C28xx_CPU1: Failed to remove the debug state from the target before disconnecting. There may still be breakpoint op-codes embedded in program memory. It is recommended that you reset the emulator before you connect and reload your program before you continue debugging
C28xx_CPU1: GEL: Error while executing OnTargetConnect(): Could not write 0x0005F412@Data: target is not connected
at *((int *) 0x5F412)=0x0003 [f280049.gel:83]
at OnTargetConnect()