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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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Lcd project with ARM9261
Lcd project with ARM9261
- 2023-02-12 04:20:03下载
- 积分：1
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Super useful stuff, tms320c2812 Ethernet chipset RTL8019 driver definitely avail...
超级有用的东西，tms320c2812的以太网芯片rtl8019的驱动程序，绝对可用的！-Super useful stuff, tms320c2812 Ethernet chipset RTL8019 driver definitely available!
- 2022-03-12 20:28:56下载
- 积分：1
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飞利浦ARM7 LPC2364利用U盘，简单易学。
使用PHILIPS ARM7 LPC2364制作U盘,简单易学.-PHILIPS ARM7 LPC2364 making use of U disk, easy to learn.
- 2022-08-19 10:57:45下载
- 积分：1
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- 2022-02-07 16:30:26下载
- 积分：1
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sharp arm7 bootloader code
sharp arm7 bootloader code
- 2022-09-13 16:35:03下载
- 积分：1
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基于三星44b0的nandflash程序，包括基本操作
基于三星44b0的nandflash程序，包括基本操作-Based on Samsung 44b0 of the NANDFLASH procedures, including basic operation
- 2022-08-18 15:35:37下载
- 积分：1
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arm JTAG debugging assistant, applied to arm7/arm9
arm jtag 调试助理,适用于arm7/arm9 -arm JTAG debugging assistant, applied to arm7/arm9
- 2023-05-29 06:40:03下载
- 积分：1
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扬创YC_2440_ADS_TEST工程源码，可直接使用H_JTAG调试
扬创YC_2440_ADS_TEST工程源码，可直接使用H_JTAG调试 -Yang Chong YC_2440_ADS_TEST project source code can be used directly H_JTAG debugging
- 2022-10-21 12:15:03下载
- 积分：1
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Their own to do a package of MSP430 pin 1
一份自己做的MSP430 的封装 管脚1-Their own to do a package of MSP430 pin 1
- 2022-02-05 13:58:02下载
- 积分：1
