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Why "cldp.exe" can not read back the flash from the board of EVAL-SDP-CB1Z

Category: Software
Product Number: EVAL-SDP-CB1Z
I'd like to readback the EVAL-SDP-CB1Z flash code. In order to make sure if my code is written successfully or not.
I used the command as the below:
 
"C:\Analog Devices\CrossCore Embedded Studio 2.11.1\cldp.exe" -proc ADSP-BF527 -emu 1000 -driver SDP_Serial_Flash_Driver.dxe -cmd save -file readback.ldr
 
unfortunately, it is failure. the Error: could not excute read command (figure 1). Would you please help me with that?