kali linux tool list
http://tools.kali.org/tools-listing

Awesome Penetration TestingAwesome Forensics

nand flash writer

http://www.modchipcentral.com/store/product.php?productid=17897
之前看到有一個JTAG debug 方式可以直接讀寫nand flash

TDI (Test Data In)
TDO (Test Data Out)
TCK (Test Clock)
TMS (Test Mode Select)
TRST (Test Reset) optional.
我有一塊arduino板子 當然就查查看能不能用

Is it possible to make a JTAG interface with an arduino 

Yes, it is possible to turn an Arduino into an ARM JTAG adapter.

There are three problems, voltage, speed and drivers.

The Arduino natively runs at 5V. Most ARM microcontrollers are not 5V tolerant on their JTAG pins and
require 3.3V. The easiest solution is to run your Arduino at 3.3V, failing that you will need some sort of 
level conversion (see I2C 3.3 to 5.0 V conversion for ideas).

The Arduino is connected to a PC via a serial link. I doubt it can feasibly go faster than 115200bps, 
which will make interactive activities likestepping through code in a debugger very slow. But, you'll be 
able to upload code and reflash devices.JTAG is a high level protocol, specific to each processor family,
 which uses a SPI like interface to exchange data. Most JTAG dongles just

provide a SPI interface over USB then leave the rest of the work to a PC application. OpenOCD and
 URJTag are popular choices. You will need a driver in one of these for your Arduino JTAG protocol.

The Bus Pirate is very similar to the Arduino (low speed microcontroller + FTDI chip). It supports JTAG
with OpenOCD, so it's certainly possible.
If you use a Teensy/Opendous or other AVR-USB board, you could use eStick-JTAG.But, for lost cost
JTAG, I'd recommend one of the FTDI2232 based dongles. They're cheap and well supported by OpenOCD.

vim hex mode

Using vi as a hex editor

:%!xxd to switch into hex mode
:%!xxd -r to exit from hex mode.
Okay, so this isn’t actaully switching to vi’s ‘hex mode’; vi doesn’t have one. What the above actually does is to stream vi’s buffer through the external program ‘xxd’.

Ubuntu 安裝linux nivida driver

Ubuntu 12.10 先按alt+ctrl+F1 跳到tty1 

然後關閉xwindows

service --status-all

service lightdm stop

sh 安裝檔...

Arduino序列埠serial port hello world

////在arduino寫入持續送hello world

void setup()                    

{Serial.begin(9600);    // set up Serial library at 9600 bps}

void loop()                       

{ delay(9000); 

 Serial.println("Hello world!");  // prints hello with ending line break 

}

然後使用screen在ubuntu接收

screen /dev/ttyACM0

//我的usb接上去代號是ttyACM0 

就可以看到螢幕上一直跳hello world

離開screen 可以按ctrl a c

to do list

how to read rom

<轉>設定命令參數列argc argv

C/C++ 標準之 main 寫法有二種，一種是不接受任何參數列；另一種是接受二個參數列。程式碼大致如下

int main(int argc, char **argv)
{
    return 0;
}

int main(void)
{
    return 0;
}

第二種於程式中較為常見，本文針對第一種 main 型態，說明主要有四點：
(1) int argc, char **argv 為何？
(2) 如何使用 argc, argv 測試程式？
(3) 在開發過程中，如何使用 VC 設定預設之 argv？
(4) 如何利用 VC 進行有效率之 argc, argv 測試？