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ADuCm302x programming flash memory

Hi, i have problem with programing first 2kB flash memory(info space) in my ADuCm302x microcontrollers. If i use another programer and next erase all without first 2kB flash memory i can programming another flash memory and everything is ok, but when i try it on blank memory if i programming all memory(info space+ another memory) i lost any connection with microntroller. When I skip first 2kB(info space) after programming microcontroller have problem with "Flash initialization (info space sign check) fails" and i can't read flash memory. There are something diffrents procedure for programming info space or where is my problem?

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