PC 开发环境版本：Vivado 2015.2 Xilinx SDK 2015.2 生成硬件系统新建vivado工程
选择Zedboard
新建Block Design
添加ZYNQ PS
点击Run Block Automation,让vivado自动配置好zedboard相关的默认的信息，点击OK
双击ZYNQ，在此可以去掉一些不用的外设
设置好的Block Design如图所示
在block design上右击，选择Create HDL Wapper完成后，在block design上右击，选择Generate Output Prouducts,在弹出的对话框选择Generate点击Generate Bitstream完成后，选择File->Export->Export Hadfware,选中Include bitsteamFile -> Launch SDK，把硬件架构导出到软件工程编写软件程序新建Hello工程
DDR3的地址
建好后，在mem_demo_bsp->ps7->cortexa9_0的路径下，打开xparameters_ps.h这个头文件，这个头文件是cortexA9可以直接控制的外设地址的宏定义。在里面可以找到DDR的地址，可以看到如下代码： /* Canonical definitions for DDR MEMORY */
#define XPAR_DDR_MEM_BASEADDR 0x00000000U
#define XPAR_DDR_MEM_HIGHADDR 0x3FFFFFFFU
等会我们要使用这个地址，对DDR3进行读写操作 读写操作函数 在mem_demo_bsp->ps7->cortexa9_0的路径下，打开xil_io.h这个头文件，这个头文件是cortexA9可以直接控制的内存映射或者映射到了地址空间的IO。在里面可以看到如下代码：
//从某个地址读数据
u8 Xil_In8(INTPTR Addr);
u16 Xil_In16(INTPTR Addr);
u32 Xil_In32(INTPTR Addr); //向某个地址写数据。
void Xil_Out8(INTPTR Addr, u8 Value);
void Xil_Out16(INTPTR Addr, u16 Value);
void Xil_Out32(INTPTR Addr, u32 Value);
OK,有了这些就可以简单的对DDR进行续写操作了
烧写测试 串口终端的结果如下：
Hello World
the address at 10000000 data is : 0
the address at 10000004 data is : 1
the address at 10000008 data is : 2
the address at 1000000C data is : 3
the address at 10000010 data is : 4
the address at 10000014 data is : 5
the address at 10000018 data is : 6
the address at 1000001C data is : 7
the address at 10000020 data is : 8
the address at 10000024 data is : 9
the address at 10000028 data is : A
the address at 1000002C data is : B
the address at 10000030 data is : C
the address at 10000034 data is : D
the address at 10000038 data is : E
the address at 1000003C data is : F
the address at 10000040 data is : 10
the address at 10000044 data is : 11
the address at 10000048 data is : 12
the address at 1000004C data is : 13
the address at 10000050 data is : 14
the address at 10000054 data is : 15
the address at 10000058 data is : 16
the address at 1000005C data is : 17
the address at 10000060 data is : 18
the address at 10000064 data is : 19
the address at 10000068 data is : 1A
the address at 1000006C data is : 1B
the address at 10000070 data is : 1C
the address at 10000074 data is : 1D
the address at 10000078 data is : 1E
the address at 1000007C data is : 1F
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