06 2013 档案

ARM MMU/ Cache原理 ， ZEDBOARD,ZYNQ分析
摘要：System Level Address map figure as shown: CPU private address Include : private timer and watchdog System Control RegisterSystem Level Control RegisterGeneral Purpose Peripherals Control Register... 阅读全文
posted @ 2013-06-30 17:09 dragen1860 阅读(2670) 评论(0) 推荐(0)
编写你的第一个GPIO 中断程序，ZEDBOARD, ZYNQ-7000
摘要：Run you first gpio-ps interrupt application To run a gpio interrupt application, you should set the direction of specified pin and interrupt detect logic. Then route the gpio interrupt to scu gic module. And then route the scu gic to cpu exception table. This is the main plot.Configure GpioPs module 阅读全文
posted @ 2013-06-18 11:17 dragen1860 阅读(4701) 评论(1) 推荐(1)
GPIOPS中断成功，问题仍旧存在 ZEDBOARD,ZYNQ-7000
摘要：Wow ,congratulations! I have work out the interrupt finally. Just after such a exhausting time. Thanks to the meanful blogs: http://forums.xilinx.com/t5/Zynq-7000-All-Programmable-SoC/%E7%94%A8SDK%E7%BC%96%E5%86%99GPIO%E4%B8%AD%E6%96%AD%E7%A8%8B%E5%BA%8F%E6%97%B6%E5%87%BA%E7%8E%B0%E7%9A%84%E9%97%AE% 阅读全文
posted @ 2013-06-15 22:38 dragen1860 阅读(2118) 评论(0) 推荐(0)
Xilinx驱动API的一个重要BUG，ZEDBOARD,ZYNQ-7000
摘要：An Important ANNOUNCEMENT at zynq-7000 driver apiThis is really a significant notify you never know!!!Once you make a change at the driver api function and ctrl+S to save the changes and re-build it.N... 阅读全文
posted @ 2013-06-14 22:05 dragen1860 阅读(758) 评论(0) 推荐(0)
关于Xil_Assert断言产生的死循环，导致程序未执行的问题
摘要：XGpioPs_SetDirection(Gpio,0x7,0x01);I am designed to write XGpioPs_SetDirectionPin(Gpio,0x07,0x01) but make a mistake !The driver api will check the validity of parameters:Xil_AssertVoid(InstancePtr !... 阅读全文
posted @ 2013-06-13 15:22 dragen1860 阅读(2657) 评论(0) 推荐(0)
关于Assert断言产生的死循环，导致程序未执行的问题
摘要：XGpioPs_SetDirection(Gpio,0x7,0x01);I am designed to write XGpioPs_SetDirectionPin(Gpio,0x07,0x01) but make a mistake !The driver api will check the validity of parameters:Xil_AssertVoid(InstancePtr !... 阅读全文
posted @ 2013-06-13 15:21 dragen1860 阅读(1089) 评论(0) 推荐(1)
调试GIC中断代码时出现的2个问题 ZEDBOARD,ZYNQ-7000
摘要：2 important questions to notify while debuging the GIC interrupt program Once your interrupt generated, you should clear the flag bit . Otherwise, the next interrupt would be ignored . you should ... 阅读全文
posted @ 2013-06-11 22:23 dragen1860 阅读(792) 评论(0) 推荐(0)
深入分析SCU GIC驱动 -1 ZEDBOARD，ZYNQ-7000
摘要：Scu gic in depth – 1Scu unit is a powerful unit to deal with the coherence of L2 and memory ,and contains a general interrupt controller pl390 : It deal with the following several kinds of interrupt:P... 阅读全文
posted @ 2013-06-11 17:42 dragen1860 阅读(2406) 评论(0) 推荐(0)
深入分析EXCEPTION 驱动文档- ZEDBOARD , ZYNQ-7000
摘要：Exception in depthThe cortex a9 have 7 kinds of exception as follows:XIL_EXCEPTION_ID_RESETXIL_EXCEPTON_ID_UNDEFINED_INTXIL_EXCEPTION_ID_SWI_INTXIL_EXCEPTION_ID_PREFETCH_ABORT_INTXIL_EXCEPTION_ID_DATA... 阅读全文
posted @ 2013-06-11 15:53 dragen1860 阅读(1622) 评论(0) 推荐(0)
深入分析GPIOPS驱动-3 ， ZEDBOARD, ZYNQ-7000
摘要：GpioPs in Depth – 3GpioPs Driver API User GuideFind the directory in Xilinx ISE installation ,we can find some useful driver api sources and documents, as shown following: Go directly into gpiops_v1_0... 阅读全文
posted @ 2013-06-09 19:45 dragen1860 阅读(937) 评论(0) 推荐(0)
深入分析GPIOPS驱动代码 – 2， Zedboard ，Zynq-7000
摘要：GpioPs in Depth 2We are trying to use the gpio in varying kinds of way, such as routing the gpio module to emio port, in order to use the ld0-ld7 and sw0-sw7 on zedboard.Start Xilinx PlanAhead and bui... 阅读全文
posted @ 2013-06-09 18:21 dragen1860 阅读(1190) 评论(0) 推荐(0)
深入分析GPIOPS驱动代码-1，Zedboard,zynq-7000
摘要：How to use the GpioPs in zedboardDifferent from other micro controller, the zynq-7000 cortex a9 has only a gpio module ,and the gpio driver api is designed for the only module, which is called XPAR_XG... 阅读全文
posted @ 2013-06-07 16:10 dragen1860 阅读(1663) 评论(0) 推荐(0)
Unable to connect to ps7_cortexa9的参考解决方案Zedboard,zynq
摘要：Unable to connect to ps7_cortexa9JTAG: cannot shift DRThis problem appears when the connection between arm cortex a9 and computer is broken. We have no effective solution to solve the problem. You can... 阅读全文
posted @ 2013-06-07 16:00 dragen1860 阅读(1573) 评论(0) 推荐(0)
Xilinx SDK下载时出现的几个问题总结
摘要：Several Problems in the Xilinx SDK projectarm-xilinx-eabi-gcc is not recognized as an internal or external command check the directory: I:\Xilinx\14.4\ISE_DS\EDK\gnu it should have 3 file folder:... 阅读全文
posted @ 2013-06-05 22:40 dragen1860 阅读(4317) 评论(0) 推荐(0)
在Main函数之前发生的事 - ZEDBOARD,ZYNQ-7000
摘要：What happened before running into main function on zedboard?Use the zedboard hardware platform to create a Xilinx project and named it print_demo as shown following: Look into the main function, nothi... 阅读全文
posted @ 2013-06-04 11:14 dragen1860 阅读(1342) 评论(0) 推荐(0)
ZEDBOARD移植UCOS II 教程
摘要：How to use the ucos-ii on zedboard?Platform: Windows7 x64Toolchain: Xilinx EDK 14.4Bloger: DragenDesirousData: 2th,june,2013Download the bsp and demo .zip files in your computer via website: http://mi... 阅读全文
posted @ 2013-06-02 21:46 dragen1860 阅读(1925) 评论(0) 推荐(0)
XILINX GPIO驱动分析
摘要：High Level – level 1 hardware driver apiLow Level – level 0 hardware driver apiXGPIO.H#include "xil_types.h"#include "xil_assert.h"#include "xstatus.h"#include "xgpio_l.h"Define:XGpio_CfgInitialize XG... 阅读全文
posted @ 2013-06-02 11:08 dragen1860 阅读(2028) 评论(0) 推荐(0)