1      Scope of Document This document describes USB hardware design, support stardard usb2.0 port on port1 2      Requiremen 2.1     Function Requirement support stardard usb2.0 port on port1, support mass storage. 2.2     Performance Requirement NA…

1      Scope of Document This document describes SPI F-RAM hardware design 2      Requiremen 2.1     Function Requirement support spi f-ram fm25l16b in linux 2.2     Performance Requirement NA 3      Hardware Overview standard spi interface, four lin…

1      Scope of Document This document describes EMMC hardware design 2      Requiremen 2.1     Function Requirement support 4G capacity EMMC in linux 2.2     Performance Requirement NA 3      Hardware Overview standard 8 bit emmc interface, eight da…

1      Scope of Document This document describes TF hardware design 2      Requiremen 2.1     Function Requirement Enumerate tf card , support boot from tf and can mount in rootfs when nand boot. 2.2     Performance Requirement Support common capacit…

1      Scope of Document This document describes can bus hardware design and can bus driver development and can test 2      Requiremen 2.1     Function Requirement Use can bus in am335x, user space use socketcan interface 2.2     Performance Requirem…

1      Scope of Document This document describes ethernet hardware design and porting KZS8081 to uboot and kernel 2      Requiremen 2.1     Function Requirement Use KZS8081 in am335x, user space use network interface 2.2     Performance Requirement S…

1      Scope of Document This document describes 4G hardware design, support quectel ec20 4G module/ Simcom 7600 CE 4G module 2      Requiremen 2.1     Function Requirement support ec20 qmi driver/ simcom 7600 ce ndis driver 2.2     Performance Requi…

1      Hardware Overview gpio interface,pin map: AM335X_I2C0_W_C----------------------MCASP0_AXR1 /*4g-power*/ AM335X_MMC2_DAT0------------------GPMC_A1 /*4g-reset*/ AM335X_MMC2_DAT2------------------GPMC_A3 /*wifi-led*/ AM335X_WIFI------------------…

1      Scope of Document This document describes UART hardware design, uart driver porting 2      Requiremen 2.1     Function Requirement Uboot enable uart0 for debug, Kernel enable uart0 uart1 uart2 uart3. 2.2     Performance Requirement Support com…

1      Scope of Document This document describes i2c bus hardware design and support i2c-devices: eeprom(at24c08) rtc(rx8025). 2      Requiremen 2.1     Function Requirement Enumerate i2c bus eeprom and rtc i2c-device, load corresponding drivers 2.2 …

1      Scope of Document This document describes how to port rtl8188eus driver to linux 4.14.y design. 2      Requiremen 2.1     Function Requirement Support usb wifi rtl8188eus working in sta mode under linux 4.14.y kernel version 2.2     Performanc…

1      Scope of Document This document describes how to make am335x arago rootfs using ycoto project 2      Requiremen 2.1     Function Requirement Make am335x arago rootfs 2.2     Performance Requirement NA 3      Functional Description 3.1     Ycot…

bridge-utils移植 [目的] 移植bridge-utils的目是在AM335X开发板上使用bridge功能. [环境] 1.  Ubuntu 16.04发行版 2.  MC183平台 3.  交叉编译器arm-linux-gnueabihf-gcc-4.7.3 [步骤] 1.下载bridge-utils-1.5.tar.gz源码. 2.  交叉编译bridge-utils-1.5. 解压bridge-utils-1.5.tar.gz tar zvxf  bridge-utils-1.5…

1      Scope of Document This document describes am335x cpufreq technology insider. 2      Requiremen 2.1     Function Requirement How to get current cpufreq, and to change cpufreq. Learning Processor Clocking Control(PPC) Interface Specification, le…

在uboot 下初始化nand,一般需要做如下工作: 第一: 配置默认从NAND boot Index: include/configs/am335x_evm.h===================================================================--- include/configs/am335x_evm.h (revision 8)+++ include/configs/am335x_evm.h (revision 9)@@ -17,9 +17…

系统可以通过SD卡引道之后,为了之后了调试方便 通过查看网卡的硬件设计 正常来说需要注意的有如下几点: 1) 网口 的接线方式: RMII 2) 网口的PHY地址两张网口,这里我们只需先初始化一张网卡,通过查看PHY的数据手册,可以发现其代码PHY地址是0. 3) 将对应的网卡驱动在include/configs/am335x_evm.h 添加对应的网卡驱动选项,以支持对应的PHY. Index: board.c==========================================…

dhcpcd移植 [目的] 移植dhcpcd的目是在AM335X开发板上使用dhcp功能,获取WAN口设备的IP,并且可以通过参数指定其matric,matric值越小,其优先级越高.如设备可以以太网,WIFI,4G上网时,可定制外网功能,以太网优先级最高,WIFI次之,4G优先级最低. [环境] 1.  Ubuntu 16.04发行版 2.  MC183平台 3.  交叉编译器arm-linux-gnueabihf-gcc-4.7.3 [步骤] 1.下载dhcpcd-6.7.1.tar.gz源…

1      Scope of Document systemd 是一个 Linux 系统基础组件的集合,提供了一个系统和服务管理器,运行为 PID 1 并负责启动其它程序.功能包括:支持并行化任务:同时采用 socket 式与 D-Bus 总线式激活服务:按需启动守护进程(daemon):利用 Linux 的 cgroups 监视进程:支持快照和系统恢复:维护挂载点和自动挂载点:各服务间基于依赖关系进行精密控制.systemd 支持 SysV 和 LSB 初始脚本,可以替代 sysvinit.…

由于上层应用的需求,需要运行arm docker,在kernel3.2上面还不支持,且编译器的glibc版本比较低的问题,故需要做系统升级 新的内核4.14.40驱动开发和以往有很大的不同,关键在于dts,本质来说就是把以往通过注册设备资源来加载驱动,查找总线的挂载的驱动,通过比较驱动名称,来加载驱动. 现在变成了通过dst来表述设备资源,对比驱动当中的id,来加载驱动. 第一阶段的目标: 由TI官网上面下载TI SDK 5.0,搭建成功之后,第一件事情就是希望系统能引导起来,能挂载文件系统,能…

系统设计者会遇到较短的设计周期.标准发展和系统调度的挑战,飓风III系列支持远程系统更新,通过其固有的重编程功能和专有电路来克服以上问题.远程系统更新帮助传递系统性能增强和bug修复,避免了昂贵的召回,缩短了产品投产时间,延长了产品生命周期. Cyclone III系列芯片内置专用远程系统更新电路,这是Cyclone III系列芯片特有的,帮助避免系统下载时间.器件中实现的软逻辑(Nios II 内嵌处理器或者用户逻辑)从远处下载新的配置信息(configuration image),将其存储在…

follow test is  use ti DDR Software Leveling op log. AM335x DDR3 Software Leveling -- Version: Beta 3.0 -- Copyright: Texas Instruments China Local Team *************************** Program Start******************************** Please input the AM335x…

对于AM335x来讲,TI维护的USB驱动已经非常完善了,本文称之为移植,实际上仅仅是配置内核选项使能USB HOST/OTG功能.废话少说,直接动手开启AM335x的USB驱动配置项. Step1. 配置内核支持USB 默认的配置项没有配置USB相关的选项,但是DTS已经配置好了,我们不需要对DTS作任何修改,详细的内核配置项如下: [cpp] view plaincopy Device Drivers  ---> [*] USB support  ---> [*]     OTG supp…

任务管理器发现 system进程持续占用12%左右的cpu,网上搜索到的很多方法均无效 误打误撞发现了这个方法,亲测可用 卸载系统补丁(KB41000347),提升10%的cpu性能 卸载补丁前:    卸载补丁后:    卸载补丁后cpu性能提升了12%. 卸载方法: 第一种方法:用工具一键卸载 1.退了杀毒软件(360 qq管家) .  2.下载这个(点击下载)工具,鼠标右键工具,用管理员权限打开这个工具即可. 第二种方法:  1. 右键点选电脑-[属性],在弹出视窗选择[控制面板] \ 程…

构建多LAN口多WAN口动态网络 [目的] 在AM335X定制动态网络功能,如下所示,在系统当中有两个以太网口,有4G模块,有wifi芯片8188eu支持AP+STA功能. [实验环境] 1.  Ubuntu 16.04发行版 2.  MC183平台 3.  交叉编译器arm-linux-gnueabihf-gcc-4.7.3 [步骤] 如下案例,eth0,wlan0为LAN口,eth1,wlan1,eth2(4G)为WAN口 本地局域网的构建 可以通过brctl,创建虚拟网卡,将网口及WIFI…

Security arrangements for a universal serial bus (USB) protocol stack of a USB host system are provided. The security arrangements prevent an unauthorized or suspicious USB device from communicating with the host system, detect suspicious activity or…

How to Add a System Call Kernel : 2.6.18編譯環境 : Fedora Core 6 假設要加的system call為 sys_project, 有一個int的輸入參數一.在linux source code的部份(以 linux 代表source code的根目錄) linux/arch/i386/kernel/syscall_table.S的最後面加上要新增的system call名稱如果syscall_table.S的最後面長得像這樣         …

http://www.codemachine.com/courses.html#kerdbg Windows Kernel Internals for Security Researchers This course takes a deep dive into the internals of the Windows kernel from a security perspective. Attendees learn about behind the scenes working of va…

Linux内核作用: The Linux kernel is the heart of the operating system. It is the layer between the user who works with Linux from a shell environment and the hardware that is available in the computer on which the user is working. The kernel is doing so b…

1912674 - How to check kernel version of an AS Java Two types of the kernel are in SAP NetWeaver Java system: Native Kernel Java Kernel Native Kernel: Native Kernel is executables of java startup framework which are written in C-code, like jcontrol,…

How to upgrade Debian 8 Jessie to Debian 9 Stretch Contents 1. Objective 2. What's New 3. Preparations 4. Jessie Full Upgrade 5. Update Package Repository to Debian Stretch 6. Upgrade to Debian Stretch Simulation 7. Upgrade to Debian Stretch Objectiv…