DSP built-in USB2. 0 controller, The procedure is through the USB procedures including DSP Bootloader code conversion tools

usb_boot_example
................\boot_img
................\........\boot_img.asm
................\........\boot_img.cmd
................\........\boot_img.paf
................\........\boot_img.pjt
................\........\boot_img.wks
................\........\cc_build_Debug.log
................\........\Debug
................\........\.....\boot_img.map
................\........\.....\boot_img.obj
................\........\.....\boot_img.out
................\........\Debug.lkf
................\........\Debug.lkv
................\boot_table
................\..........\boot_img.bin
................\..........\boot_img.bxp
................\..........\boot_img.out
................\..........\serial8bin.cmd
................\hex55
................\.....\hex55.exe
................\readme.txt

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