Rockchip Watchdog使用说明。rk平台芯片自带WDT的开启和相关配置方法，其他平台如amlogic各版本经测试都适用。

下载链接：https://share.weiyun.com/58Y8bzE 联系方式：QQ2668577984 本工具是一款针对瑞芯微机器的固件进行修改的民间集合工具。适合机顶盒、平板电脑、电纸书、学习机、VR产品、导航仪等采用PX、RK29、RK30、RK31、RK32、RK33开头的瑞芯微机器的纯安卓固件以及YunOS系统的修改。是Windows平台进行固件自由添加 精简预装的软件、改开机LOGO、适配遥控码等操作的简单便捷工具。其便捷地可以对固件的system.img与boot.img、resource.img、recovery.img等进行修改的特性，是在Windows平台下进行固件轻 度固件定制的极佳工具。基础工具操作极其小白化，按照提供的 PDF教程即可入门操作.

新版本瑞芯微RK系列刷机工具，新工具除了包含备份每个img模块和刷机功能，外加如分区读取功能。建议配合老版本使用，新版本有兼容性问题

瑞芯微RK PX30开发板中文详解（带开源资料）简介-附件资源

本驱动适用于RK3288、RK3399等平台下的WK2114的串口扩展驱动程序。WK系列芯片的串口转串口驱动

RK以太网问题汇总以及处理以太网不能使用的办法。资料比较实用

Application Note: [1] Because lack of Address pin A15 in package, following SoCs do not support the 512M*8 DDR3: RK2906-6,RK2906-8,RK3066. [2]The DRAM Part Number usually consists of two parts divided by '-', which the first part contains memory type, density, orgainization, package, and the second part usually means data rate. We don't care about the second part. [3]RockChip platform can support all the chips that match the first part of Part Number which marks '√' or 'T/A', and do not nee d to care the second part. If you want your system running more effective , you may need to find out the exact data rate in DRAM datasheet and config in kernel menuconfig. [4]Please copy the Rockchip reference design model of DRAM area PCB Layout directly without any modification and follow the PCB layout rules from Rockchip. Contact information: fae@rock-chips.com [5]Only support for RK3128. [6]The DRAM's VDD and VDDQ should powered by 1.5V when it used on these SoCs.

才用广播的形式控制系统导航栏，状态栏的显示与隐藏，同时增添系统属性def_systembar_hide来控制默认开机时系统栏的显示与否

方法一 不需要framework部分 1.fm放到 \hardware\rk2x 2.FmRadio 放到 packages\apps 3.hardware\libhardware\include\hardware\fm.h 放到hardware\libhardware\include\hardware\fm.h 4.build\target\product中PRODUCT_PACKAGES :=加上 FmRadio \ 5./bionic/libc/kernel/common/linux/Hw_fm.h拷贝过去 6./device/rockchip/rksdk/device.mk中加入PRODUCT_PACKAGES += fm.$(TARGET_BOARD_HARDWARE)让\hardware\rk2x\fm能够编译到 7.device\rockchip\rksdk\init.rc中加上权限chmod 0664 /dev/RADIO_FM8035 chown system system /dev/RADIO_FM8035这样Rk28_fm.c (hardware\rk2x\fm\primitive)中int fm_init(sighandler_t fm_sighandler) 方法二需要在上面移植以后多加framework的内容

RK算法求解一个简单方程，抄的别人代码，找到作者后我再订正来源