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优龙2440开发板的测试程序（ADS 编写）
优龙2440开发板的测试程序（ADS 编写）-2440 development board excellent long test procedures (ADS preparation)
- 2022-07-12 02:31:09下载
- 积分：1
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这是一个不到2000行的操作系统，巧妙地利用ARM9 CPU的内存管理单元(MMU)实现进程的切换。ARM9的4G虚拟地址可分成128个进程空间，每个32M。虽...
这是一个不到2000行的操作系统，巧妙地利用ARM9 CPU的内存管理单元(MMU)实现进程的切换。ARM9的4G虚拟地址可分成128个进程空间，每个32M。虽然它们的虚拟地址(VA)都是0-(32M-1)，但是对应的MVA(Modified vitual address,由虚拟地址VA和进程号PID组合而来)不一样，设置MVA对应的页表指向不同物理地址就可以很方便地让各进程运行空间相互隔开。代码很少，注释丰富，希望能对想理解操作系统、了解ARM体系结构的朋友有所帮助。
-This is a trip of less than 2000 operating system, cleverly using ARM9 CPU memory management unit (MMU) to achieve the switching process. ARM9 4G virtual address can be divided into 128 process space, each 32M. While their virtual address (VA) are 0- (32M-1), but the corresponding MVA (Modified Virtual address, and by the virtual address VA and the process of portfolio from PID) not the same, set MVA corresponding page table at the different physical address can be very easy to let the the process of separating the mutual operation of space. Code rarely Notes rich, in hopes of understanding the operating system, understanding the ARM architecture friends help.
- 2023-01-15 10:50:03下载
- 积分：1
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stc12c5axx 脉宽调制
使用定时器来控制DC也调整PWM波，控制LED的光按K1，PWM值增加，DC减少，导致更暗按K2，PWM值降低，而DC的增加，导致更亮
- 2022-01-26 01:56:34下载
- 积分：1
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在proteus仿真平台上移植ucos到lpc2106的流水灯实验。
在proteus仿真平台上移植ucos到lpc2106的流水灯实验。-Simulation in Proteus platform uCOS transplantation into the water lights LPC2106 experiment.
- 2022-01-25 17:26:05下载
- 积分：1
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有关2812的一些文章，包括测频、数字滤波和采样等
有关2812的一些文章，包括测频、数字滤波和采样等-2812 relating to a number of articles, including frequency measurement, digital filtering and sampling, etc.
- 2023-02-03 11:10:04下载
- 积分：1
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单片机C语言100例源代码基于PIC
单片机C语言100例源代码基于PIC单片机C语言100例源代码基于PIC单片机C语言100例源代码基于PIC单片机C语言100例源代码基于PIC
- 2022-02-28 13:37:22下载
- 积分：1
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ra8875 driver
BU PROJE RA8875 DRIVE ETMEK ICIN YAZILMISTIRBU PROJE RA8875 DRIVE ETMEK ICIN YAZILMISTIRBU PROJE RA8875 DRIVE ETMEK ICIN YAZILMISTIRBU PROJE RA8875 DRIVE ETMEK ICIN YAZILMISTIRBU PROJE RA8875 DRIVE ETMEK ICIN YAZILMISTIRBU PROJE RA8875 DRIVE ETMEK ICIN YAZILMISTIRBU PROJE RA8875 DRIVE ETMEK ICIN YAZILMISTIRBU RA8875 DRIVE ETMEK ICIN YAZILMISTIRBU PROJE RA8875 DRIVE ETMEK ICINYAZILMISTIRBU项目RA8875 DRIVE ETMEK ICIN YAZILMISTIRBU项目RA8875 DRIVE ETMEK ICIN YAZILMISTIR
- 2022-04-08 14:42:54下载
- 积分：1
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指纹识别模块
在别人代码的基础上自己整合编写，已经完全实现指纹录入，识别，管理员登陆等基本功能，唯一不足是不能将指纹图像从模块中上传到单片机中（上位机）进行显示，希望各位改进。
- 2022-06-18 11:09:39下载
- 积分：1
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Freescale smart car contest source, free to share Oh, hard to come by
freescale智能车大赛源程序，无偿共享哦，很难得的-Freescale smart car contest source, free to share Oh, hard to come by
- 2023-01-03 04:00:03下载
- 积分：1
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ti公司的msp430f247pwm脉冲产生程序
ti公司的msp430f247pwm脉冲产生程序-ti
- 2023-08-05 07:35:03下载
- 积分：1
