↑点击上方蓝色字体,关注“嵌入式软件实战派”获得更多精彩内容。 前段时间面试了一个小伙子,他有三四年嵌入式软件开发经验的了,随意问了一个问题: MCU软件的变量是存在哪的,RAM还是ROM? 他犹豫了会,说是ROM。 接着我问他RAM和ROM有什么区别,他“呃 ...
这些都是比较抽象的专业名词了,特别是寄存器,很多人在学单片机的时候对这个一脸懵逼,寄存器到底是个啥玩意? 其实不用很深刻的理解它到底是什么,你只需要知道通过配置寄存器的值,就可以把外设用起来。 我做单片机开发的这10几年,接触寄存器非常 ...
Like peanut butter and jelly, like salt and pepper, like that seemingly perfect couple you love (to hate), the two dominant types of computer memory truly complete one another. Read-only memory (ROM) ...
When we learn about the internals of a microprocessor, we are shown a diagram that resembles the 8-bit devices of the 1970s. There will be an ALU, a program counter, a set of registers, and address ...
A central processing unit, or CPU, is the heart of any computer system. But it’s definitely not the only part: you also need RAM, ROM and at least some peripherals to turn it into a complete system ...
Let us discuss this topic in more detail. 1] Hard Disk Drive (HDD) or Solid-State Drive (SSD) When it comes down to common computer memory, the hard disk drive is likely at the top of the list. If you ...
We know that microcontroller is an integrated chip which consists of RAM, ROM, CPU, TIMERS, COUNTERS etc. PIC is a microcontroller which also consists of RAM, ROM, CPU, timers, counter, ADC (analog to ...
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