硬件中断由外部设备触发,用于处理设备请求(如键盘输入);软件中断由程序指令引发,用于系统调用(如INT指令)。应用不同,硬件中断处理实时事件,软件中断实现内核服务。 1. **中断来源**:硬件中断由外部设备(如键盘、磁盘)通过物理信号触发;软件中断由程序执行特定指令(例如INT、SWI)主动发起。2. **触发机制**:硬件
What is hardware interrupt? What is software interrupt? What is exception? Please tell me all you know about interrupt.相关知识点: 试题来源: 解析 硬件中断是由外部设备触发的信号,用于请求处理器处理事件;软件中断是通过指令主动引发的中断,用于系统调用等;异常是处理器执行指令时遇到的意外错误或特殊情况(...
Interruptscan be categorized into two groups which areasynchronous interrupts(aka interrupt,hardware interrupt) andsynchronous interrupts(akaexception). The former mayarrive anytime, typically IO interrupts, the latter mayonly arrive after the execution of an instruction, for example when the cpu try to...
A structured top-down approach to the design of programs which use the traditional interrupt hardware is urged. The OCCAM language has been chosen for program notation because OCCAM was designed for the representation of parallel program activity, and interrupts inherently imply some sort of ...
Other Parts Discussed in Thread: DM3730 When implementing any of the DMA request lines (sys_ndmareq[3..0]) on the DM3730, does this interrupt go directly to the
Hardware interrupts aren't the only type of interrupt. Many systems also allow software to generate interrupts. This is done when errors happen, such as a divide by zero operation, or an attempt to access memory that doesn't exist. Software interrupts are usually irrecoverable and result in a...
请输入您的回答...简述hardware interrupt和software中断的区别，简述其应用 不
Interrupts are processes that are either initiated by hardware (hard interrupt) or software (soft interrupt), that once initiated, cause the Linux kernel to switch from process mode into interrupt mode. 中断是一些进程,由硬件触发(硬件中断)或软件触发(软件中断 ) ; 一旦触发,就会导致 Linux 内核从...
This signal is sent via Avalon (and how you connect that interrupt in SOPC Builder), to the various master peripherals connected to the slave. The behavior and response of each of these masters is dependent on the design of that master; for the Nios II CPU, external interrupts are another...
- Debug interrupt. i.e. putting a hardware breakpoint when a PC has a sertain address.Note that with exception of the first solution, you might interfier with the debugger. i.e. debugger to think the processors stopped due to its breakpoints, and your interrupt handler routine will never...