feat(usb): 添加USB CDC功能模块支持
- 在CMakeLists.txt中添加usb_cdc_module、usb_cdc_test_module和 usb_device_module源文件 - 添加usb_cdc_rx_event、usb_cdc_tx_event、usb_device_state_event、 usb_function_ready_event和usb_prepare_event事件定义 - 实现USB CDC串口通信功能,包括接收和发送数据处理 - 添加USB设备状态管理,支持连接、断开、激活等状态变化 - 配置设备树中的USB端点数量以支持CDC ACM功能 - 创建USB设备模块用于管理USB堆栈初始化和状态监控 - 添加USB功能就绪事件以协调不同USB功能的准备状态
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@@ -225,9 +225,14 @@
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&usbd {
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status = "okay";
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num-bidir-endpoints = <0>;
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num-in-endpoints = <2>;
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num-out-endpoints = <1>;
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num-bidir-endpoints = <1>;
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num-in-endpoints = <7>;
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num-out-endpoints = <7>;
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num-isoin-endpoints = <0>;
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num-isoout-endpoints = <0>;
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cdc_acm_uart0: cdc_acm_uart0 {
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compatible = "zephyr,cdc-acm-uart";
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label = "CDC_ACM_0";
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};
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};
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