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关于Omap-L138的StarterWare 中的usb_dev_bulk例程问题



各位:

        如题, 版本是 OMAPL138_StarterWare_1_10_04_01,在CCS5.5 导入 usb_dev_bulk 例程,PC 显示 未知设备,无法枚举。然后用IAR 6.5 建立工程,结果也一样。硬件用的是自己的开发板。请各位指教,谢谢。