电子工程师必看：LMC7660负压转换器实战应用指南（附电路图）

根节点DeviceNodeEnumerateCompletion状态完成后下一个节点是子节点PCI0第一个调用的函数是nt!PiProcessNewDeviceNodecase DeviceNodeEnumerateCompletion:status PipEnumerateCompleted(currentNode);nextNode ChildNode;break;switch (nextNode) {case SameNode:break;case ChildNode:if (currentNode-Child ! NULL) {currentNode currentNode-Child;break;}0: kd peax894ffea8 ebx899c1008 ecx80ae0dfa edx80b18978 esi00000000 edi00000002eip80c9509a espf789a398 ebpf789a5d4 iopl0 nv up ei ng nz na po nccs0008 ss0010 ds0023 es0023 fs0030 gs0000 efl00000282nt!PipProcessDevNodeTree0x50c:80c9509a 8bd8 mov ebx,eax0: kd !devnode 894ffea8DevNode 0x894ffea8 for PDO 0x899050e8Parent 0x899c1008 Sibling 0x8952a1e0 Child 0000000000State DeviceNodeUninitialized (0x

Previous State Unknown State (0x

StateHistory[19] Unknown State (0x

StateHistory[18] Unknown State (0x

StateHistory[17] Unknown State (0x

StateHistory[16] Unknown State (0x

StateHistory[15] Unknown State (0x

StateHistory[14] Unknown State (0x

StateHistory[13] Unknown State (0x

StateHistory[12] Unknown State (0x

StateHistory[11] Unknown State (0x

StateHistory[10] Unknown State (0x

StateHistory[09] Unknown State (0x

StateHistory[08] Unknown State (0x

StateHistory[07] Unknown State (0x

StateHistory[06] Unknown State (0x

StateHistory[05] Unknown State (0x

StateHistory[04] Unknown State (0x

StateHistory[03] Unknown State (0x

StateHistory[02] Unknown State (0x

StateHistory[01] Unknown State (0x

StateHistory[00] Unknown State (0x

Flags (0x

DNF_ENUMERATED0: kd !devobj 899050e8Device object (899050e

is for:00000030 \Driver\ACPI DriverObject 89981f38Current Irp 00000000 RefCount 0 Type 00000032 Flags 00001040SecurityDescriptor e1297680 DevExt 899c0d58 DevObjExt 899051a0 DevNode 894ffea8ExtensionFlags (

Characteristics (0x

FILE_AUTOGENERATED_DEVICE_NAMEDevice queue is not busy.0: kd dt _device_object 899050e8hal!_DEVICE_OBJECT0x000 Type : 0n30x002 Size : 0xb80x004 ReferenceCount : 0n00x008 DriverObject : 0x89981f38 _DRIVER_OBJECT0x00c NextDevice : 0x89981b98 _DEVICE_OBJECT0x010 AttachedDevice : (null)0x014 CurrentIrp : (null)0x018 Timer : (null)0x01c Flags : 0x10400x020 Characteristics : 0x800x024 Vpb : (null)0x028 DeviceExtension : 0x899c0d58 Void0x02c DeviceType : 0x320x030 StackSize : 1 0x034 Queue : __unnamed0x05c AlignmentRequirement : 00x060 DeviceQueue : _KDEVICE_QUEUE0x074 Dpc : _KDPC0x094 ActiveThreadCount : 00x098 SecurityDescriptor : 0xe1297680 Void0x09c DeviceLock : _KEVENT0x0ac SectorSize : 00x0ae Spare1 : 00x0b0 DeviceObjectExtension : 0x899051a0 _DEVOBJ_EXTENSION0x0b4 Reserved : (null)0: kd dt acpi!_Device_Extension 0x899c0d580x000 Flags : 0x00402000020100200x000 UFlags : __unnamed0x008 Signature : 0x5f5347500x00c DebugFlags : 00x010 DispatchTable : 0xf743830c IRP_DISPATCH_TABLE0x014 WorkContext : WORK_QUEUE_CONTEXT0x014 Fdo : _FDO_DEVICE_EXTENSION0x014 Filter : _FILTER_DEVICE_EXTENSION0x014 Pdo : _PDO_DEVICE_EXTENSION0x058 WorkQueue : EXTENSION_WORKER0x058 Button : BUTTON_EXTENSION0x058 Thermal : THERMAL_EXTENSION0x058 LinkNode : LINK_NODE_EXTENSION0x058 Dock : DOCK_EXTENSION0x058 Processor : _PROCESSOR_DEVICE_EXTENSION0x088 DeviceState : 0 ( Stopped )0x08c PreviousState : 0 ( Stopped )0x090 PowerInfo : _ACPI_POWER_INFO0x10c DeviceID : 0x899c1148 ACPI\PNP0A030x10c Address : 0x899c11480x110 InstanceID : (null)0x114 ResourceList : (null)0x118 PnpResourceList : (null)0x11c OutstandingIrpCount : 0n10x120 ReferenceCount : 0n830x124 HibernatePathCount : 0n00x128 RemoveEvent : (null)0x12c AcpiObject : 0x899affac _NSObj0x130 DeviceObject : 0x899050e8 _DEVICE_OBJECT0x134 TargetDeviceObject : (null)0x138 PhysicalDeviceObject : 0x899050e8 _DEVICE_OBJECT0x13c ParentExtension : 0x89981a18 _DEVICE_EXTENSION0x140 ChildDeviceList : _LIST_ENTRY [ 0x899c0d38 - 0x8990efe8 ]0x148 SiblingDeviceList : _LIST_ENTRY [ 0x899ae150 - 0x89981b58 ]0x150 EjectDeviceHead : _LIST_ENTRY [ 0x899c0ea8 - 0x899c0ea8 ]0x158 EjectDeviceList : _LIST_ENTRY [ 0x899c0eb0 - 0x899c0eb0 ]0: kd db 0x899affac899affac 4c ff 9a 89 ac 40 9b 89-f0 f0 9a 89 24 00 9b 89 L..........$...899affbc 50 43 49 30 30 f3 9a

c ff 9a 89 00 00 06 00 PCI

..L.......899affcc 00 00 00 00 00 00 00

00 00 00 00 00 00 00 ................899affdc 58 0d 9c 89 00 00 00

4f 52 47 34 00 00 00 X.......HORG

..899affec 00 f0 9a 89 50 00 00

00 00 00 02 00 00 00 ....P...

......899afffc 00 00 00 00 00 00 00

00 00 00 00 00 00 00 ................899b000c 00 00 00 00 00 00 00

00 00 00 48 4e 53 4f ............HNSO899b001c 44 00 00 00 00 f0 9a

a0 91 89 68 00 9b 89 D.......d...h...while (!processComplete) {//// Dont process devnodes with problem.//status STATUS_SUCCESS;nextNode SiblingNode;if (!PipDoesDevNodeHaveProblem(currentNode)) {switch (currentNode-State) {0: kd peax894ffea8 ebx894ffea8 ecx00000010 edx80b18978 esi00000000 edi00000001eip80c94c93 espf789a398 ebpf789a5d4 iopl0 nv up ei pl zr na pe nccs0008 ss0010 ds0023 es0023 fs0030 gs0000 efl00000246nt!PipProcessDevNodeTree0x105:80c94c93 8b4318 mov eax,dword ptr [ebx18h] ds:0023:894ffec000000301typedef enum _PNP_DEVNODE_STATE {DeviceNodeUnspecified 0x300, // 768DeviceNodeUninitialized, // 769DeviceNodeInitialized, // 770DeviceNodeDriversAdded, // 771DeviceNodeResourcesAssigned, // 772 - Operational state for AddedDeviceNodeStartPending, // 773 - Operational state for AddedDeviceNodeStartCompletion, // 774 - Operational state for AddedDeviceNodeStartPostWork, // 775 - Operational state for AddedDeviceNodeStarted, // 776DeviceNodeQueryStopped, // 777DeviceNodeStopped, // 778DeviceNodeRestartCompletion, // 779 - Operational state for StoppedDeviceNodeEnumeratePending, // 780 - Operational state for StartedDeviceNodeEnumerateCompletion, // 781 - Operational state for StartedDeviceNodeAwaitingQueuedDeletion, // 782DeviceNodeAwaitingQueuedRemoval, // 783DeviceNodeQueryRemoved, // 784DeviceNodeRemovePendingCloses, // 785DeviceNodeRemoved, // 786DeviceNodeDeletePendingCloses, // 787DeviceNodeDeleted, // 788MaxDeviceNodeState // 788} PNP_DEVNODE_STATE, *PPNP_DEVNODE_STATE;0: kd ?0n769Evaluate expression: 769 00000301case DeviceNodeUninitialized:if (!ProcessOnlyIntermediateStates) {if (currentNode-Parent enumeratedBus startRoot NULL) {startRoot currentNode;}if((!ReallocateResources EnumType EnumTypeNone) || startRoot) {status PiProcessNewDeviceNode(currentNode);if (NT_SUCCESS(status)) {nextNode SameNode;}}}break;0: kd kc#00 nt!PiProcessNewDeviceNode01 nt!PipProcessDevNodeTree02 nt!PipDeviceActionWorker03 nt!PipRequestDeviceAction04 nt!IopInitializeBootDrivers05 nt!IoInitSystem06 nt!Phase1Initialization07 nt!PspSystemThreadStartup08 nt!KiThreadStartup0: kd dvDeviceNode 0x894ffea8

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