USB_STATE_ATTACHED, USB_STATE_POWERED, /* wired */ USB_STATE_RECONNECTING, /* auth */ USB_STATE_UNAUTHENTICATED, /* auth */ USB_STATE_DEFAULT, /* limited function */ USB_STATE_ADDRESS, USB_STATE_CONFIGURED, /* most functions */ USB_STATE_SUSPENDED /* NOTE: there are actually four ...
save, and update the current keyboard state// gpio_setDirvalue(matrix[y].port, matrix[y].pin, GPIO_MODE_OUTPUT_PP, GPIO_PIN_SET);// for (i = 0; i < 10; i++);// }if(HAL_TIM_Base_Stop_IT(&htim2) != HAL_OK)
***/ void Enter_LowPowerMode(void) { /* Set the device state to suspend */ bDeviceState = SUSPENDED; }/*** * Function Name : Leave_LowPowerMode * Description : Restores system clocks and power while exiting suspend mode * Input : None. * Return : ...
// Whether button is pressed boolbtn_pressed=(digitalRead(pin)==activeState); // nothing to do if button is not pressed if(!btn_pressed)return; // Remote wakeup if(USBDevice.suspended()) { // Wake up host if we are in suspend mode // and REMOTE_WAKEUP feature is enabled by host ...
1.1 主机端 主机端，简化抽象三层：各种类设备驱动：mass sotrage, CDC, HID等 USB 设备驱动：USB 核⼼处理 主机控制器驱动：不同的USB主机控制器（OHCI/EHCI/UHCI），抽象为HDC。1.2 设备端 设备端，也抽象为三层：设备功能驱动：mass sotage , CDC, HID 等，对应主机端的类设备驱动 Gadget 设备驱动：...
The QON pin supports push-button interface to reset system power without host by changing the state of BATFET. When the QON pin is driven to logic low for tQON_RST while input source is not plugged in and BATFET is enabled (BATFET_DIS = 0), the BATFET is turned off for tBATFET...
} 处理能源管理请求,把总线置为suspended状态以及响应wakeup事件 } 提供root hub功能,让设备可以连接到主机控制器 usbcore注册了USB总线,USB文件系统,USB Hub以及USB的设备驱动usb generic driver等。 数据包分Token, Data, Handshake, Special,四种包有自己的数据组织方式 usb_hub_init()开启一个名为"khubd"的内核...
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Charge and boost AI mode suspended when TS pin voltage is out of range. When TS pin is not used, connect a 10-kΩ resistor from REGN to TS and a 10-kΩ resistor from TS to GND or set TS_IGNORE to HIGH to ignore TS pin. It is recommended to use a 103AT-2 thermistor. P ...