Zybo GPIO Demo Run Embedded Linux

时间:2014-08-02 15:10:13   收藏:0   阅读:1289

1.Environment

Ubuntu 12.04 x86_64

Vivado 2013.4

SDK 2013.4

2.Pre-requisites

2.1 CodeSourcery arm-gcc toolchain lite 32-bit compatible

git clone https://github.com/xupsh/CodeSourcery.git

echo “export PATH=~/CodeSourcery/bin:$PATH” >> ~/.bashrc

echo “export CROSS_COMPILE=arm-xilinx-linux-gnueabi-“ >> ~/.bashrc

arm-xilinx-linux-gnueabi-gcc –v

2.2 fsbl Download

http://pan.baidu.com/s/1jGj1yLK

LinaroDemo-> boot_image

2.3 u-boot Download

http://pan.baidu.com/s/1dD6D2pz

git clone https://github.com/Xilinx/u-boot-xlnx.git

Click Download ZIP right hand

2.4 devicetree Download

http://pan.baidu.com/s/1pJyR4pl

2.5 Kernel Download

http://pan.baidu.com/s/1pJqec35

https://github.com/Xilinx/linux-xlnx

branch->tags->Xilinx-v2013.4

2.6Randisk Download

wget http://www.wiki.xilinx.com/file/view/arm_ramdisk.image.gz/419243558/arm_ramdisk.image.gz

3.Hardware

Open vivado,Create a new project named zybo_gpio_demo,Click next。

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In the device selection pannel,we choose xc7z010clg400-1 destdevice。

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Add a new block design,named design_1。

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Click Add Ip button in the view window,and add ZYNQ IP Core.

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Double Click IP Core to configure it。

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Choose Import XPS Settings,Add ZYBO_zynq_def.xml,click OK。

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Download Link:

http://www.digilentinc.com/Data/Products/ZYBO/ZYBO_def.zip

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Now ZYNQ has been configured and fit for zybo。

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Click OK,go back to block design,click Add Ip button again,Insert GPIO IP core。

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Double click GPIO core to config it:

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The configuration is as follows:open Dual Channel,Set the bit width of each channel to 4bit。

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Click Run Block Automation in the, and Run Connection Automation tips column, and Vivado will auto connection and configure。Click ok in all the pop-up dialogs。

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Click refresh button at bottom left,the result is as follows。

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In Source window, choose Sources tab,right click design_1, choose Generate Output Products…

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Right click zynq_system_1choose Create HDL Wrapper,Keep default,click OK, Vivado will generate a top file for IP subsystem。

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Right click Constraints->constrs_1 and choose Add Source。

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In the pop-up dialog,choose Create File…,rename it to system.xdc。

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http://www.digilentinc.com/Data/Products/ZYBO/ZYBO_Master_xdc.zip

reference ZYBO_Master.xdc, add LED and SW constraints altogether 8 lines。

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Finally,In Flow Navigator,expand Program and Debug,click Generate Bitstream.

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When bitstream generated,Bitstream Generation successful completed dialog will be open, Choose Open Implementation Design,Click OK to finish.

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In IP Integrator Item, click Open Block Design,choose zynq_system_1.bd,reopen the Block Design we built.

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Choose File > Export > Export Hardware for SDK….,Export Hardware for SDK dialogue will be open,make sure Include bitstream and Launch SDK has been choosed.

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4.Linux

4.1Compile u-boot

Enter u-boot source code folder and modify the boot file:

vi ./include/configs/zynq_zed.h

Modify line 39, insert code:

#define CONFIG_ZYNQ_PS_CLK_FREQ 50000000UL

Run the following command in u-boot source code folder.

make zynq_zed config

make

cp u-boot u-boot.elf

 

4.2Compile Kernel

Enter kernel source code folder, and run the following command.

cd linux-xlnx-xilinx-v2013.4

make ARCH=arm xilinx_zynq_defconfig

make ARCH=arm UIMAGE_LOADADDR=0x8000 uImage

cp arch/arm/boot/uImage .

 

4.3 Change Randisk

Run the following command and do the modify:

cp arm_ramdisk.image.gz ramdisk.image.gz

gunzip ramdisk.image.gz

mkdir file_tmp

mount ramdisk.image –o loop ./file_tmp/

Run the following command to repack to uramdisk:

sudo umount file_tmp/

gzip ramdisk.image

sudo apt-get install u-boot-tools

mkimage –A arm –T ramdisk –C gzip –d ramdisk.image.gz uramdisk.image.gz

 

5.References

http://pan.baidu.com/s/1bnq23UZ

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