Ubuntu 16.04下EasyOpenJTAG+OpenOCD的安装和使用【转】

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Ubuntu 16.04下EasyOpenJTAG+OpenOCD的安装和使用

发布时间:2016-09-12 09:09:31来源:linux网站作者:heyuqian_csdn

操作系统：VMware fusion + Ubuntu 16.04.1 LTS

开发板：JZ2440 V3 + EasyOpenJTAG

 

设备连接：

 

要烧写裸机程序离不开OpenJTAG，OpenJTAG包含了3大功能，USB 转串口、USB 转 JTAG、 在线调试。

借助OpenOCD等开源软件可以完成程序的下载、烧写、调试等任务:

首先安装libftdi和ftdi-eeprom 下载地址http://www.intra2net.com/en/developer/libftdi/download.php：

 

1、下载confuse-2.5.tar.gz  libftdi1-1.3.tar.bz2并解压：

root@ubuntu:/work/tmp# ls /mnt/hgfs/jz2440/download/  

confuse-2.5.tar.gz  libftdi1-1.3.tar.bz2 

root@ubuntu:/work/tmp# tar -jxvf /mnt/hgfs/jz2440/download/libftdi1-1.3.tar.bz2 -C ./  

root@ubuntu:/work/tmp# tar -zxvf /mnt/hgfs/jz2440/download/confuse-2.5.tar.gz -C ./  

 

2、安装libftdi，参考源码目录下的README.build：

root@ubuntu:/work/tmp/libftdi1-1.3# mkdir build; cd build：  

root@ubuntu:/work/tmp/libftdi1-1.3# cmake  -DCMAKE_INSTALL_PREFIX="/usr" ../; make; sudo make install  

 

3、安装ftdi-eeprom，参考源码目录下的INSTALL

root@ubuntu:/work/tmp# cd confuse-2.5/; ./configure; make; make install

 

然后安装OpenOCD

1]、下载OpenOCD

root@ubuntu:/work/tmp# git clone git://openocd.git.sourceforge.net/gitroot/openocd/openocd 

 

2]、编译并安装， 请参考源码目录下的README.build

root@ubuntu:/work/tmp/openocd# ./bootstrap  

root@ubuntu:/work/tmp/openocd# ./configure --enable-ftdi  

root@ubuntu:/work/tmp/openocd# make; make install  

编译后的版本为：

root@ubuntu:/work/tmp/openocd# openocd -v  

Open On-Chip Debugger 0.10.0-dev-00371-g81631e4 (2016-09-11-18:21)  

Licensed under GNU GPL v2  

For bug reports, read  

http://openocd.org/doc/doxygen/bugs.html  

 

3]、增加udev规则，以便使用普通用户权限操作调试器。以root权限创建/etc/udev/rules.d/45-openjtag.rules（文件名可以换成别的）：

SYSFS{idProduct}=="5118", SYSFS{idVendor}=="1457", MODE="666", GROUP="plugdev"

 

4]、添加OpenOCD配置文件openocd.cfg：

interface ftdi  

#通过描述来指定设备，应当和dmesg中的Product一致  

#ftdi_device_desc "USB<=>JTAG&RS232"  

#通过PID VID指定调试器，比描述更准确些  

ftdi_vid_pid 0x1457 0x5118  

#如果有多个同样的调试器，还可以指定要使用的调试器序列号  

#ftdi_serial  

#引脚定义，相当于旧版中的 ft2232_layout jtagkey  

ftdi_layout_init 0x0c08 0x0f1b  

ftdi_layout_signal nTRST -data 0x0100 -noe 0x0400  

ftdi_layout_signal nSRST -data 0x0200 -noe 0x0800 

# Target configuration for the Samsung 2440 system on chip  

# Tested on a S3C2440 Evaluation board by keesj  

# Processor   : ARM920Tid(wb) rev 0 (v4l)  

# Info:   JTAG tap: s3c2440.cpu tap/device found: 0x0032409d (Manufacturer: 0x04e, Part: 0x0324, Version: 0x0)

if { [info exists CHIPNAME] } {  

set  _CHIPNAME $CHIPNAME  

} else {  

set  _CHIPNAME s3c2440  

}

if { [info exists ENDIAN] } {  

set  _ENDIAN $ENDIAN  

} else {  

# this defaults to a bigendian  

set  _ENDIAN little  

}

if { [info exists CPUTAPID ] } {  

set _CPUTAPID $CPUTAPID  

} else {  

# force an error till we get a good number  

set _CPUTAPID 0x0032409d  

} 

#jtag scan chain  

jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0x0f -expected-id $_CPUTAPID

#  

#jtag_rclk 3000  

adapter_khz 1234

#set _TARGETNAME $_CHIPNAME.cpu  

#target create $_TARGETNAME arm920t -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm920t  

#$_TARGETNAME configure -work-area-phys 0x200000 -work-area-size 0x4000 -work-area-backup 0  

#arm7_9 fast_memory_access enable 

set _TARGETNAME $_CHIPNAME.cpu  

target create $_TARGETNAME arm920t -chain-position $_TARGETNAME  

$_TARGETNAME configure -work-area-phys 0x00200000 \  

-work-area-size 0x4000 -work-area-backup 0 

#reset configuration  

reset_config trst_and_srst

#Flash CFG<openocd.pdf P[74~]  

#flash bank name driver base size chip_width bus_width target [driver_options]  

#usage: flash bank <name> <driver> <base> <size> <chip_width> <bus_width> <target>  

#flash bank bank_id driver_name base_address size_bytes chip_width_bytes bus_width_bytes target [driver_options ...]  

flash bank 0 cfi 0x0 0x200000 2 2 $_TARGETNAME

#NAND CFG <openocd.pdf P[88~92]>  

#nand device name driver target [ configparams... ]  

nand device 0 s3c2440 $_TARGETNAME 

root@ubuntu:~# telnet localhost 4444  

Trying 127.0.0.1...  

Connected to localhost.  

Escape character is '^]'.  

Open On-Chip Debugger  

> halt  

> nand probe 0  

NAND flash device 'NAND 256MiB 3.3V 8-bit (Samsung)' found  

> load_image leds.bin  

136 bytes written at address 0x00000000  

downloaded 136 bytes in 0.015671s (8.475 KiB/s)  

> resume 0x0

最后启动OpenOCD：首先将EasyOpenJTAG USB连接至PC，然后开发板上电，最后在和配置文件openocd.cfg相同目录执行openocd

root@ubuntu:~# openocd   

Open On-Chip Debugger 0.10.0-dev-00371-g81631e4 (2016-09-11-22:15)  

Licensed under GNU GPL v2  

For bug reports, read  

http://openocd.org/doc/doxygen/bugs.html  

Info : auto-selecting first available session transport "jtag". To override use 'transport select <transport>'.  

adapter speed: 1234 kHz  

trst_and_srst separate srst_gates_jtag trst_push_pull srst_open_drain connect_deassert_srst  

Info : clock speed 1234 kHz  

Info : JTAG tap: s3c2440.cpu tap/device found: 0x0032409d (mfg: 0x04e (Samsung), part: 0x0324, ver: 0x0)  

Info : Embedded ICE version 2  

Info : s3c2440.cpu: hardware has 2 breakpoint/watchpoint units

可以看到设备已经识别成功。

 

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