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the problem of kboot connect kinetis flash tool by uart

Question asked by g z on Sep 11, 2018
Latest reply on Oct 17, 2018 by Victor Jimenez

i ported kboot to my board ,but when i use flash tool to connect my board is wrong. the first the flash tool continuous send 0x5a 0xa6, when i bootloader response 0x5a 0xa7 0x00 0x02 0x01 0x50 0x00 0x00 0xaa 0xea.but the flash tool still continuous send 0x5a 0xa6 .i don't know happen this situation .i hope someone can help me to solve the problem.