发布时间:2013-05-23 14:42:49
用arm-none-linux-gnueabi-gcc 编译uboot是抱怨 add __aeabi_unwind_cpp_pr0() 解决补丁,以前一直认为是编译器不匹配针对u-boot-2009.08diff --git a/lib_arm/eabi_compat.c b/lib_arm/eabi_compat.cindex 86eacf1..eb3e26d 100755--- a/lib_arm/eabi_compat.c+++ b/lib_arm/eabi_compat.c@@ -16,3 +16,8 @@ int .........【阅读全文】
发布时间:2013-05-21 22:05:53
1 IntroductionBuildroot is a set of scripts and patches for the creation of a cross-compilation toolchain as well as the creation of a complete root file system. Buildroot provides:support for prebuilt or external toolchainsconfiguration through menuconfig, gconfig and xconfig .........【阅读全文】
发布时间:2013-05-20 18:00:28
Step-by-step Buildroot/Busybox Root File SystemThis tutorial is for Developers. It is written to work starting with the odroidu2 ubuntu SD-Card image, for example: odroidu2_20130104-linaro-ubuntu-desktop-uSDeMMC.img.xz.This tutorial is not for Android developers.It was tested on.........【阅读全文】
发布时间:2013-05-19 19:00:49
编写Nor map驱动-rwxr-xr-x 1enzo enzo 253K 5月 18 16:32 u-boot.binNor flash前256K存放uboot,所以驱动中定义的mtd_partition 要把uboot的空间留出来,不要破坏uboot /* * mini2440 nor flash mappings of chips in physical memory.........【阅读全文】
发布时间:2013-05-19 11:01:32
主控检测SD卡的三种方法 SD卡的检测一共有三种方法: 1, 在开机的时候通过CMD发送命令检测T卡是否存在,这种方式不支持热插拔。 2,通过T卡座来检测,信号TCARD_DETECT连在中断控制器上。在没有插卡时,TCARD_DETECT信号为低电平。插入T卡后,信号 TCARD_DETECT 被拉高为高电平,从而产生一个中断。即实现了热插拔。.........【阅读全文】