Domain - FPGA (Hardware Security and Trust).

Board Used :- Zybo (Zynq 7000 processor)

Question :- Using the Helloworld and AES samples implement a Pseudo Random Number Generator (PRNG).Implement the PRNG in the Secure World. Write an interface for the PRNG that is accessible from the Non-Secure World.You should be able to set the seed from the Non Secure World and be able to read the next random number.

I am trying to implement Trust zone U-Boot ,using zybo board on vivado. I created the BOOT image and loaded it in the SD card. When I try to view through the putty terminal i get an error saying "No valid device tree binary found - please append one to U-Boot binary, use u-boot-dtb.bin or define CONFIG_OF_EMBED. For sandbox, use -dinitcall sequence 0405b8e8 failed at call 04051c68(err=-1) ### ERROR ### Please RESET the board ###" I tried resetting the board but the same error gets repeated again and again.

Thanks in ADVANCE :)

COM4 PuTTY No valid device tree binary found - please append one to U-Boot binary, use u-bo ot-dtb.bin or define CONFIG OF EMBED. For sandbox, use -d initcall sequence 0405b8e8 failed at call 04051c68 (err=-1) ### ERROR ### Please RESET the board ### COM4 PuTTY No valid device tree binary found - please append one to U-Boot binary, use u-bo ot-dtb.bin or define CONFIG OF EMBED. For sandbox, use -d initcall sequence 0405b8e8 failed at call 04051c68 (err=-1) ### ERROR ### Please RESET the board ###