Which of the following is correct about the description of the interrupt model of embedded system without operating system（）
A. Complete the corresponding transaction in the interrupt program
B. Only interrupts are registered in an interrupt program
C. When an interrupt occurs, the interrupt service routine registers the interrupt type in the stack
D. The main function executes the actual interrupt task through infinite loop, and does not distinguish the interrupt priority
查看答案
Directly for hardware programming, can’t（）
Access processor’s registers
B. Control the working mode and process of the hardware
C. Using the scheduling mechanism of operating system
D. Read-write memory
Which of the following is wrong about the description of the interrupt service routine（）
A. It can return the computed result to the main function
B. It should be as short as possible to enhance the real-time of the system
C. It should not include complex operations
D. It cannot pass arguments
Which of the following programming languages has the highest execution efficiency（）
Assembly language
B. C language
C++ language
D. JAVA language
Which of the following is not an inherent part of an embedded system（）
A. Processor
B. Peripheral circuit
C. Embedded operating system
D. Embedded application software
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