三星原廠的CE5.0bsp,包括eboot,nboot,kernel,driver。實(shí)現(xiàn)了kitl,directdraw驅(qū)動(dòng) eboot有usb下載功能
上傳時(shí)間: 2014-01-14
上傳用戶:dengzb84
HHARM2410: 1. 從ftp://ftp.arm.linux.org.uk上下載linux內(nèi)核,由于項(xiàng)目原因,先后跑了2.6.11,2.6.13和2.6.15,試了一下ftp.kernel.org上下載的2.6.16,沒跑起來,打住。 2. 編輯linux-2.6.15/Makefile, ARCH ?= $(SUBARCH) CROSS_COMPILE?= 改為 ARCH ?= arm CROSS_COMPILE?= arm-unknown-linux-gnu- 我用的編譯器是4.0.1版本的,一般的3.x的應(yīng)該都沒問題
標(biāo)簽: linux ftp HHARM 2410
上傳時(shí)間: 2014-09-03
上傳用戶:lo25643
The subroutines glkern.f and lokern.f use an efficient and fast algorithm for automatically adaptive nonparametric regression estimation with a kernel method. Roughly speaking, the method performs a local averaging of the observations when estimating the regression function. Analogously, one can estimate derivatives of small order of the regression function.
標(biāo)簽: automatically subroutines and algorithm
上傳時(shí)間: 2015-11-25
上傳用戶:luke5347
qemu性能直逼VMware的仿真器QEMU 的模擬速度約為實(shí)機(jī)的 25%;約為 Bochs 的 60 倍。Plex86、User-Mode-Linux、VMware 和 Virtual PC 則比 QEMU 快一點(diǎn),但 Bochs 需要特定的 kernel Patch;User-Mode-Linux 的 Guest System 必須為 Linux;VMware 和 Virtual PC 則需要在 Guest System 上安裝特定的 Driver,且它們是針對作業(yè)系統(tǒng)而進(jìn)行模擬,並不能說是完整的模擬器。所以 QEMU 仍不失為極優(yōu)秀的 x86 模擬器。
標(biāo)簽: VMware User-Mode-Linux Virtual Bochs
上傳時(shí)間: 2014-06-04
上傳用戶:bakdesec
從結(jié)構(gòu)上來說,實(shí)時(shí)多任務(wù)操作系統(tǒng)包括兩部分,一部分為操作系統(tǒng)內(nèi)核(kernel),即實(shí)時(shí)執(zhí)行程序(Real Time Executive:RTX),另一部分是輸入輸出部分(I/O)(注意開發(fā)系統(tǒng)不屬于操作系統(tǒng)的范疇);嵌入式系統(tǒng)對I/O的需求通常比較小(無文件系統(tǒng)需求),因此很多實(shí)時(shí)多任務(wù)操作系統(tǒng)本質(zhì)上就是一個(gè)實(shí)時(shí)執(zhí)行程序,如AMX(Kadak),VRTX(Microtec),iRMX(Intel)等(這里的X即:eXecutive),如果純粹從kernel的角度來考察目前流行的各種實(shí)時(shí)多任務(wù)操作系統(tǒng)的性能,它們的效率差別都不大。 在市面上可以得到一些RTX的源代碼(有用C實(shí)現(xiàn)的,有用匯編實(shí)現(xiàn)的,還有用PL/M語言實(shí)現(xiàn)的),從internet上也可以蕩一些下來(我介紹一個(gè)站點(diǎn)www.eg3.com,堪稱世界電子工程師資源寶庫),下面我要介紹的一個(gè)RTX版本(我命名為SRTX:short RTX),可以說是RTX中的元老級產(chǎn)品了,來自某研究所,九十年代初他們到美國考察,從美國某公司購得。五年以前,SRTX在國內(nèi)有售,許多搞工控的研究所利用SRTX開發(fā)了一些大型或小型的產(chǎn)品,這里介紹的SRTX我作了一些簡化和改動(dòng).
標(biāo)簽:
上傳時(shí)間: 2015-12-09
上傳用戶:wang5829
Abstract: By using gateway systems on large 32-bit platforms, networks of small, 8- and 16-bit microcontrollers can be monitored and controlled over the Internet. With embedded Linux, these gateways are easily moved from full-blown host PCs to embedded platforms like the PC104. In this class you will learn about hardware platforms that support embedded Linux, Linux kernel configuration, feature selection, installation, booting and tuning.
標(biāo)簽: bit platforms Abstract networks
上傳時(shí)間: 2014-01-05
上傳用戶:kytqcool
In a preemptive priority based RTOS, priority inversion problem is among the major sources of deadline violations. Priority inheritance protocol is one of the approaches to reduce priority inversion. Unfortunately, RTOS like uC/OS can’t support priority inheritance protocol since it does not allow kernel to have multiple tasks at the same priority. Although it has different ways to avoid priority inversion such as priority ceiling protocol, developers still have some difficulties in programming real time applications with it. In this paper, we redesign the uC/OS kernel to provide the ability to support round robin scheduling and implement priority inheritance semaphore on the modified kernel. As result, we port new kernel with priority inheritance semaphore to evaluation board, and evaluate the execution time of each of the kernel service as well as verify the operations of our implementation.
標(biāo)簽: priority preemptive inversion problem
上傳時(shí)間: 2015-12-14
上傳用戶:氣溫達(dá)上千萬的
基于ecos的redboot,該包支持多種處理器。用戶可以根據(jù)自己硬件平臺(tái),通過ecosconfig來配置,配置界面和編譯linux kernel差不多。本包已經(jīng)正對Intel IXP2400平臺(tái)做了相應(yīng)配置,硬件平臺(tái)為雙CUP架構(gòu)。壓縮文件中有更為詳細(xì)的說明。
上傳時(shí)間: 2014-01-09
上傳用戶:siguazgb
嵌入式Linux 內(nèi)核移植相關(guān)代碼分析 本文通過整理之前研發(fā)的一個(gè)項(xiàng)目(ARM7TDMI +uCLinux),分析內(nèi)核啟動(dòng)過程及需要修改的文件,以供 內(nèi)核移植者參考。整理過程中也同時(shí)參考了眾多網(wǎng)友的帖子,在此謝過。由于整理過程匆忙,難免錯(cuò)誤 及講解的不夠清楚之處,請各位網(wǎng)友指正,這里提前謝過。本文分以下部分進(jìn)行介紹: 1. Bootloader 及內(nèi)核解壓 2. 內(nèi)核啟動(dòng)方式介紹 3. 內(nèi)核啟動(dòng)地址的確定 4. arch/armnommu/kernel/head-armv.S 分析 5. start_kernel()函數(shù)分析
標(biāo)簽: ARM7TDMI uCLinux Linux 嵌入式
上傳時(shí)間: 2016-01-12
上傳用戶:xzt
Linux 2.4.18 s3c2440 led driver 使用dev-C++撰寫,需要linux 2.4.18 kernel include,編譯完成後產(chǎn)生led module。 insmod main.o //安裝模組 mknod /dev/leds c 221 0 使用方法: int main(int argc, char *argv[]) { int testdev //led test... testdev = open("/dev/QuickMarkLed",O_RDWR) ioctl(testdev, 2, 1) //ioctl(device, led number, open/close) open=1 ioctl(testdev, argv[1][0]- 0 , argv[2][0]- 0 ) //ioctl(device, led number, open/close) open=1 close(testdev) return 0 }
標(biāo)簽: s3c2440 driver Linux dev-C
上傳時(shí)間: 2014-01-01
上傳用戶:qlpqlq
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