我在根目录下下建了个文件夹/disk/A9，与开发板相关的工具、资料都放在这里边。
1.配置交叉编译器 1> ls /disk/A9/arm-linux-gcc-4.5.1-v6-vfp-20120301.tgz tar -xvf arm-linux-gcc-4.5.1-v6-vfp-20120301.tgz 解压后的文件夹为opt 2> cp opt/* /opt/ -r 3> 配置用户环境变量 vim ~/.bash_profile 在.bash_profile文件中添加以下内容： PATH=$PATH:/opt/FriendlyARM/toolschain/4.5.1/bin/ 添加后.bash_profile 文件内容如下 # .bash_profile
# Get the aliases and functions if [ -f ~/.bashrc ]; then . ~/.bashrc fi # User specific environment and startup programs PATH=$PATH:$HOME/bin PATH=$PATH:/opt/FriendlyARM/toolschain/4.5.1/bin/ export PATH4>生效环境变量 source ~/.bash_profile 5>测试 在新的终端在输入 arm- ‘tab’+’tab’ 出现如下界面表示交叉编译器安装成功 [root@localhost 2017-02-13]# arm- arm-linux-addr2line arm-none-linux-gnueabi-addr 2line arm-linux-ar arm-none-linux-gnueabi-ar arm-linux-as arm-none-linux-gnueabi-as arm-linux-c++ arm-none-linux-gnueabi-c++ arm-linux-cc arm-none-linux-gnueabi-cc arm-linux-c++filt arm-none-linux-gnueabi-c++f ilt arm-linux-cpp arm-none-linux-gnueabi-cpp arm-linux-g++ arm-none-linux-gnueabi-g++ arm-linux-gcc arm-none-linux-gnueabi-gcc
2.编译uboot 1>ls /disk/A9/uboot_tiny4412-master.zip 2>unzip uboot_tiny4412-master.zip 解压后文件为uboot_tiny4412-master 3>cd uboot_tiny4412-master 4>make tiny4412_config 5>make 编译完成后显示如下内容，表明编译成功 arm-linux-ld: warning: creating a DT_TEXTREL in object. arm-linux-objcopy -O srec u-boot u-boot.srec arm-linux-objcopy –gap-fill=0xff -O binary u-boot u-boot.bin 如果 编译出错，一般都是未安装32位库 lib 安装32位库，我的库文件位lib.tar 解压： tar -xvf lib.tar 解压后文件夹 test cd test ls 有以下三个文件夹 lib usrlib usrlocallib 将这三个三个文件夹添加到根目录底下，不要覆盖根目录下的原始文件（即在拷贝时提示是否覆盖源文件，直接回车即可）。 cp lib/* /lib/ -r cp usrlib/* /usr/lib/ -r cp usrlocallib/* /usr/local/lib/ -r
加载库后重新编译。
3.准备SD卡 1》df -h Filesystem Size Used Avail Use% Mounted on /dev/sda7 207G 44G 153G 23% / tmpfs 3.8G 224K 3.8G 1% /dev/shm /dev/sda5 2.0G 64M 1.8G 4% /boot /dev/sdb1 1023M 6.2M 1017M 1% /media/5D13-6E09 /dev/sdb3 2.0G 87M 1.8G 5% /media/38fa7b25-a79c-4f22-bfdd-37eef00bb5eb
2》 umount /media/* 3》 fdisk -l Disk /dev/sda: 500.1 GB, 500107862016 bytes255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00045184
Device Boot Start End Blocks Id System /dev/sda1 * 1 13055 104858624 7 HPFS/NTFS /dev/sda2 13055 26109 104858624 7 HPFS/NTFS /dev/sda3 26109 32636 52429824 7 HPFS/NTFS /dev/sda4 32636 60802 226238488 5 Extended /dev/sda5 32637 32892 2048000 83 Linux /dev/sda6 32892 33414 4194304 82 Linux swap / /dev/sda7 33414 60802 219993088 83 Linux
Disk /dev/sdb: 15.5 GB, 15523119104 bytes 64 heads, 32 sectors/track, 14804 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x7d37efd0
Device Boot Start End Blocks Id System /dev/sdb1 20 1044 1049600 c W95 FAT32 (LBA) /dev/sdb2 1045 2069 1049600 83 Linux /dev/sdb3 2070 4118 2098176 83 Linux
4》 D格SD卡 ，这里D格大小为 bs * count = 1MB dd if=/dev/zero of=/dev/sdb bs=1024 count=1024count=1024 1024+0 records in 1024+0 records out 1048576 bytes (1.0 MB) copied, 0.260175 s, 4.0 MB/s
5》 fdisk -l Disk /dev/sda: 500.1 GB, 500107862016 bytes255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00045184
Device Boot Start End Blocks Id System /dev/sda1 * 1 13055 104858624 7 HPFS/NTFS /dev/sda2 13055 26109 104858624 7 HPFS/NTFS /dev/sda3 26109 32636 52429824 7 HPFS/NTFS /dev/sda4 32636 60802 226238488 5 Extended /dev/sda5 32637 32892 2048000 83 Linux /dev/sda6 32892 33414 4194304 82 Linux swap / Solaris /dev/sda7 33414 60802 219993088 83 Linux
Disk /dev/sdb: 15.5 GB, 15523119104 bytes 64 heads, 32 sectors/track, 14804 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000
4**烧写Uboot**
1>cd /disk/A9/uboot_tiny4412-master 2>cd sd_fuse/ 3> lsMakefile sd_fdisk.c tiny4412 V310-EVT1-mkbl2.c 4> make gcc -o mkbl2 V310-EVT1-mkbl2.c gcc -o sd_fdisk sd_fdisk.c 5>cd tiny4412/ 6>./sd_fusing.sh /dev/sdb(我的SD卡) 出现如下画面说明烧写成功
/dev/sdb reader is identified. BL1 fusing 16+0 records in 16+0 records out 8192 bytes (8.2 kB) copied, 0.218726 s, 37.5 kB/s BL2 fusing 28+0 records in 28+0 records out 14336 bytes (14 kB) copied, 0.38555 s, 37.2 kB/s u-boot fusing 540+1 records in 540+1 records out 276932 bytes (277 kB) copied, 2.04629 s, 135 kB/s TrustZone S/W fusing 184+0 records in 184+0 records out 94208 bytes (94 kB) copied, 0.741492 s, 127 kB/s U-boot image is fused successfully. Eject SD card and insert it again.
5>将SD卡插入板子上 6> 确定板子与PC通信OK ls /dev/tty* 发现有ttyUSB0 说明板子串口与PC间设备通信正常（板子串口与PC usb口之间通过串口转接线或串口模块通信）
7>安装并设置串口通信工具minicom 1>yum -y install minicom 2>minicom -s 出现如下画面: +—–[configuration]——+ | Filenames and paths | | File transfer protocols | | Serial port setup | | Modem and dialing | | Screen and keyboard | | Save setup as dfl | | Save setup as.. | | Exit | | Exit from Minicom | +————————–+ 3> 选择Serial port setup 并按如下设置 Serial Device : /dev/ttyUSB0 Bps/Par/Bits : 115200 8N1 Hardware Flow Control : No Software Flow Control : No 保存设置 4> 选择 Save setup as dfl 5> 选择Exit 将会进入如下界面： Welcome to minicom 2.3
OPTIONS: I18n Compiled on Aug 19 2010, 05:50:19. Port /dev/ttyUSB0
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U-Boot 2010.12 (Feb 13 2017 - 17:23:07) for TINY4412
CPU: S5PC220 [Samsung SOC on SMP Platform Base on ARM CortexA9] APLL = 1400MHz, MPLL = 800MHz
Board: TINY4412 DRAM: 1023 MiB
vdd_arm: 1.2 vdd_int: 1.0 vdd_mif: 1.1
BL1 version: N/A (TrustZone Enabled BSP)
Checking Boot Mode … SDMMC REVISION: 1.1 MMC Device 0: 14804 MB MMC Device 1: 3728 MB MMC Device 2: N/A * Warning - using default environment
Net: No ethernet found. Hit any key to stop autoboot: 0
设置完成。
minicom 退出方法 CTRL + A + q
