zedboard系统移植

(注意：mkimage 工具是在u-boot中编译生成的)
挂载SD卡： mount /dev/mmcblk0p1 /mnt/
网卡配置：
ifconfig lo up //启动本地回环 ifconfig eth0 down //关闭eth0网卡 ifconfig eth0 up //开启eth0网卡 ifconfig eth0 192.168.58.222 //配置板子的网卡的IP
md 地址 查看内存的值 nm 地址 向该地址写入某个值
（二）内核移植 1、配置编译内核
make ARCH=arm xilinx_zynq_defconfig make ARCH = arm
make ARCH=arm CROSS_COMPILE=arm-xilinx-linux-gnueabi- uImage LOADADDR=8000
char buf_n[N] = "000800"; char buf_msg[N] = "0A67095C0F5077FF01FF01\x1a";
memset(buf_thief,0,sizeof(buf_thief)); strcat(buf_thief,buf_center); strcat(buf_thief,buf_num); strcat(buf_thief,buf_n); strcat(buf_thief,buf_msg); char buf_msg1[N] = "164F60662F62117684773CFF01621172314F60554AFF01\x1a"; //`char buf_msg1[N] = "0A6709706B60C5FF01FF01\x1a"; //char buf_msg1[N] = "044F60597D\x1a"; //char buf_msg1[N] = "024F60\x1a";
int i = 0; char tmp;
for(i = 0; i < 14; i++) { if((i%2) == 0) { tmp = buf_num[i]; buf_num[i] = buf_num[i+1]; buf_num[i+1] = tmp; }
} printf("%s\n",buf_num);
}
}
sleep(1); if(news == THIEF) { if(write(fd,buf_thief,strlen(buf_thief)) == -1) { perror("fail to write AT+CMGF"); exit(-1); } } if(news == FIRE) { printf("%s\n",buf_msg); if(write(fd,buf_fire,strlen(buf_fire)) == -1) { perror("fail to write AT+CMGF"); exit(-1); } } printf("Send message over\n");
sleep(1);
if(write(fd,at_cmgf,strlen(at_cmgf)) == -1) { perror("fail to write AT+CMGF"); exit(-1); }
sleep(1);
if(write(fd,at_cmgs,strlen(at_cmgs)) == -1) { perror("fail to write AT+CMGS"); exit(-1);
zedboard系统移植
Zedboard系统移植
（一）u-boot移植 下载u-boot源码u-boot-xlnx-master.tar.gz 切换目录到家目录下：cd 解压源码：tar -xzvf u-boot-xlnx-master.tar.gz
切换目录：cd u-boot-xlnx-master
SDK2014.1里边生成设备树出现如下错误：
错误原因：设备树描述的网卡和Linux驱动里边的驱动不匹配，导致找不到网卡驱动
三、根文件系统移植 拷贝交叉编译库： ~/CodeSourcery/Sourcery_CodeBench_Lite_for_Xilinx_GNU_Linux/arm-xilinx-linux-gnueabi/libc/lib
memset(buf_fire,0,sizeof(buf_fire)); strcat(buf_fire,buf_center); strcat(buf_fire,buf_num); strcat(buf_fire,buf_n); strcat(buf_fire,buf_msg1); printf("%s\n",buf_msg); if((fd = open("/dev/s3c2410_serial1",O_RDWR | O_NOCTTY | O_NDELAY)) < 0) { perror("fail to open serial port"); exit(-1); } serial_init(fd); if(write(fd,at,strlen(at)) == -1) { perror("fail to write AT");3, =__mmap_switched @ address to jump to after @ mmu has been enabled
b __enable_mmu b __turn_mmu_on mov pc, r13//跳到__mmap_switched处执行
b start_kernel
Linux内核启动流程分析： 1.设置成SVC模式，关闭所有的中断 safe_svcmode_maskall r9 @ safe_svcmode_maskal 2.检查proc和arch以及atag的有效性 bl __lookup_processor_type @ r5=procinfo r9=cpuid bl __vet_atags 3.如果使能了SMP，则修正和SMP相关的代码 bl __fixup_smp 4.创建页表项 bl __create_page_tables 5.使能MMU b __enable_mmu
修改顶层Makefile文件：vim Makefile
make ARCH=arm CROSS_COMPILE=arm-xilinx-linux-gnueabi- zynq_zed_config 1、修改Makefile文件
2、配置zedboard make zynq_zed_config 3、make编译
ZedBoard以NFS服务启动内核：
setenv bootargs noinitrd root=/dev/nfs rw nfsroot=192.168.1.50:/home/wtw/rootfs ip=192.168.1.123:192.168.1.50:192.168.1.123:255.255.255.0::eth0:off
设备树制作：
./scripts/dtc/dtc -I dts -O dtb -o devicetree.dtb ./arch/arm/boot/dts/digilent-zed.dts -I ：指定输入源文件dts -O：指定输出文件格式为dtb -o：指定输出文件名
setenv bootargs 'console=ttyPS0,115200 root=nfs nfsroot=192.168.2.50:/home/linux/rootfs ip=192.168.2.123 init=linuxrc'
make uImage LOADADDR=8000 内核启动是出现如下错误：
解决办法（转换ramdisk映象文件）： mkimage -n 'Ramdisk Image' -A arm -O linux -T ramdisk -C gzip -d uramdisk.image.gz uramdisk1.image.gz
IP设置：
setenv serverip 192.168.58.222 setenv ipaddr 192.168.58.111 setenv serverip 192.168.1.50 setenv ipaddr 192.168.1.123 TFTP下载： tftpboot 3000000 uImage && bootm 0x3000000 0x2000000 0x2A00000 bootm 0x3000000 0x2000000 0x2A00000 ifconfig lo up ifconfig eth0 up ifconfig eth0 192.168.58.222 NFS挂载： mount -t nfs 192.168.58.111:/home/wtw/rootfs /mnt -o nolock mknod /dev/led c 230 222
init=/linuxrc console=ttyPS0,115200
setenv bootargs noinitrd root=/dev/nfs rw nfsroot=192.168.58.222:/home/wtw/rootfs ip=192.168.58.111:192.168.58.222:192.168.58.112:255.255.255.0::eth0:off init=/linuxrc console=ttyPS0,115200
下载好交叉编译软件xilinx-2011.09-50-arm-xilinx-linux-gnueabi.bin 将dash改为bash，在终端中输入dpkg-reconfigure dash。 选择no 修改权限：chmod a+x xilinx-2011.09-50-arm-xilinx-linux-gnueabi.bin 在终端输入：./xilinx-2011.09-50-arm-xilinx-linux-gnueabi.bin 设置环境变量在ubuntu中，环境变量的文件是 /etc/bash.bashrc，修改这个文件就行了(命令vim /etc/bash.bashrc)，在末尾增加内容： export ARCH=arm export CROSS_COMPILE=arm-xilinx-linux-gnueabiexport PATH=/root/CodeSourcery/Sourcery_CodeBench_Lite_for_Xilinx_GNU_Linux/bin/:$PATH arm-xilinx-linux-gnueabi-gcc -v，如果可以打印出交叉编译器的版本信息，说明设置成功 void gprs_sendMessage(int news,char num[N]) { printf("%s\n",num); int fd; char at[N] = "AT\r"; char at_cmgf[N] = "AT+CMGF=0\r"; printf("%s\n",at_cmgf); char at_cmgs[N] = "AT+CMGS=37\r"; printf("%s\n",at_cmgs); char buf_thief[N] ; char buf_fire[N] ; char buf_center[N] = "0891683108100005F011000D91"; char buf_num[N]; memset(buf_num,0,sizeof(buf_num)); strcpy(buf_num,"86"); strcat(buf_num,num); strcat(buf_num,"F"); printf("%s\n",buf_num);