BF707 locked device loads boot slow

Hello.

We are using BF707 with master boot from SPI2 flash memory.

There are unlocked device with simple boot "LED Blink" ldf. With BCode 14, it starts up in ~2ms from reset. (10 kylobytes size).

Then the device is locked to secure boot, we prepare the same "LED Blink" as secured BLx with needed keys and it starts up successfully, but after ~200ms !!!

What does such time delay for locked part ?

 

Regards,

Andrey Lysenko.

 

Limaco JSC.

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