SCM中Interrupt Handler的优先级()Main HandlerA、低于B、高于C、等于D、相当于
SCM中Interrupt Handler的优先级()Main Handler
- A、低于
- B、高于
- C、等于
- D、相当于
相关考题:
Interrupts are an important part of embeddedsystems. Consequently, many compiler vendorsoffer an extension to standard C to support interrupts.Typically, the keyword is __interrupt. The followingcode uses __interrupt to define an interrupt serviceroutine (ISR). Point out problems in the code.__interrupt double compute_area (double radius){double area = PI * radius * radius;printf("\nArea = %f", area);return area;}
An operating system also has to be able to service peripheral( ),such as timers,motors,sensors,communicationdevices,disks,etc.All of those can request the attention of the OS( ),i.e.at the time that they want to use the OS,theOS has to make sure it's ready to service the requests.Such a request for attention is called an interrupt.There are twokinds of interrupts:Hardware interrupts and Software interrupts.The result of an inteiTup:is also a triggering of theprocessor,so that it jumps to a( )address.Examples of cases where software interrupts appear are perhaps a divide by zero,a memory segmentation fault,etc.So this kind of interrupt is not caused by a hardware event but by a specificmachine language operation code.Many systems have more than one hardware interrupt line,and the hardwaremanufacturer typically assembles all these interrupt lines in an interrupt(请作答此空).An Interrupt( )is a piece of hardware that shields the OS from the electronic details of the interrupt lines,so that interrupts can be queued and none of themgets lost.A.vectorB.arrayC.queueD.ist
宽带商务的产品体系有()客户关系管理、进销存管理、办公自动化、人力资源管理,对应的英文缩写分别是什么()A、CRM、SCM、OA、HRB、SCM、OA、HR、CRMC、SCM、CRM、OA、HRD、HR、SCM、OA、CRM
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问答题简述JIT思想在SCM中运用的条件。