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https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1524296/lp-am243-usb-testmode
工具/软件：
我在 LP-AM243上运行 cc_echo_freertos_am243x-evm_r5fss0-0_freertos_ti-arm-clang 工程。
如何检查 USB 测试模式(TEST_J、TEST_K、TEST_packet、SE0_NAK)？
此致、
