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How to flash UBL => hardware requirements ?

Hi all,

Another trivial question for all DV experienced designers.

We are designing a DM365-based board an we must forecast the hardware connections of the system. We understand that the first bootloader is flashed inside the DM365, it launches the UBL, which will launch itself uBoot.

My question is what do I need in terms of hardware to be able to program this UBL code in my embedded device ? I guess it is linked to JTAG but do not find documents about this process of any manufactured product.

Any hint ?

Thanks

reda