Key words: JNI, win7, Android SDK, Android ndk, cygwin, Eclipse, JDK
1.download and install the latest cygwinsetup.exeNote that you need to select devel @ install, which is required to simulate the Linux environment ,,,,SelectHttp://mirrors.163.comFast download speedAfter installation, open make-V and GCC-V to test whether the installation is successful.
2.download and install jdk-7u2-windows-i586.exeProblems that may occur later: When javah.exeis used in the pathsystem runtime to generat
Eclipse+cdt+gdb Debugging Android NDK ProgramFirst introduce the development environment, in this environment, the UP master guarantee is no problem.
Ubuntu 11.10
Eclipse 3.7 (Indego) for Java
JDK 6
Android SDK 2.2
Andrid NDK R7
Of course, in the Windows environment through the Cygwin and other tools can also be implemented GDB debugging, I have indeed implemented. But the performance is too low, the card can not be used
files
Here are examples of how to do 6 of these things
1. Upgrade a single mail databaseThis sample looks for the mail database USER in the \mail subdirectory of the Notes data directory. Nsf. The Mail conversion utility replaces the current message template with the R7 mail template dwa7.ntf Regardless of the template used before the mail file.Load Convert MAIL\USER.NSF * dwa7.ntf
2, upgrade all mail databases in the directoryThis example finds al
immediate number is greater than 0xff, immediately the number of loops left to shift even digits, to get a number between 0x0--0xffMeeting the above two conditions is legal:Examples of illegal numbers: 0x101 0xffffffIllegal numbers can be manipulated by this example: LDR r1,=0xfffff, register addressingMOV R1,R2, register Indirect addressingLDR R1,[R2]; R2 the data read out of the storage unit pointed to is saved in R1STR R1,[R2]; Read the data in the R1 and save it in the storage unit that the
I have read the article about the transplantation of UC on the C51 by Mr. Yang from julong. However, with the understanding of UC, it is found that the task function in the porting program of instructor Yang cannot pass parameters, so he tried to change it.
The running process of UC is as follows: 1. osinit () function initializes idle tasks. If there may be statistical tasks, of course, there are PCB and event idle lists (I think anyone who knows UC knows how to get started ); 2. ostaskcreate
Recently, I am very interested in iOS reverse engineering. Currently, iOS reverse engineering books include Hacking and Securing IOS Applications and iOS Hacker's Handbook. The Chinese books include iOS reverse engineering: analysis and practice: the programmer Nian Qian's iOS security attack and defense series english blog includes: Prateek Gianchandani's iOS Security Series blog which involves ARM assembly, but it is only widely used, the ARM assembly on iOS is not described in detail. Therefo
cannot be predicted. Therefore, in scenarios with high real-time requirements, compilation and C joint applications are also required. But is there a latency program that needs to be implemented through assembly? To find this answer, I did an experiment.When using C language to implement latency programs, the first thing that comes to mind is the commonly used loop statements in C. The following code is frequently seen on the Internet:Void delay2 (unsigned char I){For (; I! = 0; I --);}How high
registers cannot be accessed concurrently, and the processor state and operating mode determine which registers are available to the programmer.
L Non-grouped universal register R0-R7
R0--R7 in 16 data registers are non-grouped universal registers that are used to hold data and addresses .
L Packet General register R8-R15, processor mode determines physical register
--r8-r12 Register: Fast Interrupt and o
Note : This article is for offline activities "CTO debate" mobile entrepreneurship: the struggling or transformative record, Appcan CTO Zhaoqinghua, Testin CTO Yin Chunpeng, Cloud Wisdom CEO Yinjin, TalkingData CTO Shawen, Love encryption CTO Lin Wei, Aurora pushes chief data scientist Huangxin, technical director of 51CTO College Li Ming, Jr. participated in the discussion. 6 CTO from the Enterprise Development, technology exploration, work in the co
Android push our own with XMPP written protocol arrival rate is not guaranteed, often lost, how do you generally solve?
Reply content:
Android push our own with XMPP written protocol arrival rate is not guaranteed, often lost, how do you generally solve?
I'm afraid I'll have a lot of problems with my studies.It is recommended that you refer to open source push.
I used to be Baidu push service. You can use Baidu Bae on the existing push service. Http://developer.baidu.com/wiki/index.php?ti
Pattern:Diffuser: Scattered light plate, the effect of astigmatism, so that more evenly spread
This part is mainly the light source part, CCFL or LED backlight light source, other reflectors, scattered light plate, the role of these optical distribution more evenly
Rear Polarizer: Rear polarizing PlateFront polarizer: Front polarizing Plate
The role of polarizing film to turn natural light into an aurora borealis
1. The following is the Aurora document written above, many students did not have a good view (below I think is the angle of the relevant settings)* @abstract Set the corner mark (to the server)** @param value New. Overwrites the value saved on the server (this user)** @discussion This interface does not change the applied local corner label value.* Local still need to call the Uiapplication:setapplicationiconbadgenumber function to set the foot tag.*
, design a piece of code that will re-write a command to a specific address. Then, we can use a loop to implement it because we need to return to the original address and execute it again. The Code is as follows:
#! Cpp _ asm _ volatile (1 "stmfd sp !, {R4-r8, lr} \ n "2" mov r6, #0 \ n "used to count the number of cycles, debug 3" mov r7, #0 \ n "assigns the initial value 4" mov r8, pc \ n "4, and 7 for r7
Lab requirements:Set up the topology, import the pre-configuration, and troubleshoot the following errors.1. R4 cannot learn the host entries mounted on R5;2. The OSPF neighbor between R6 and R7 cannot start;3. R4 cannot form OSPF neighbors with R2 and R3;4. R7 cannot form an IPsec neighbor with R8 or R9;5. The host on R5 cannot be pinged to the host on R9;6. Ensure that the packets sent from the host on R5
Is my circuit diagram
Below are four programs I write with two different languages and two different latencies, but I don't know what time to ask during simulation (I haven't solved it yet)
A loop assembly delayCode:
Org 0100 h; reserved space
Main:
Loop: mov P0, # 0xf3h;
Acall dtime
MoV r0, #5; What are the functions of these statements? Make things yellow, North and South Red
Loop1:
MoV P0, # 0f5h
Acall dtime1
MoV P0, # 0f7h
Acall dtime1
Djnz r0, loop1
MoV P0, # 0de
is in the 30 h unit, if it is 31 H, it can be obtained in 31 H unit, and this problem can be solved. How can this problem be solved? Since it is the value in the Register, we can change the value here through some methods. For example, after obtaining a number, we can add 1 to the value in this register unit, execute the same command, but the number of objects is different, isn't it. Here is an example.
MOV R7,#20 MOV R0,#30HLOOP:MOV A,@R0
bits, and do not store data with the reserved bits in the program. Reserved bits are used for expansion of the arm version.5) run mode bit M []: The bit is the mode bit, which determines the run mode of the processor. The meanings are shown in the following table:
M [4: 0]
Processor Mode
Accessible registers in arm Mode
Accessible registers in thumb Mode
0b10000
User Mode
PC, CPSR, R0 ~ R14
PC, CPSR, R0 ~ R7, LR, S
lens in the back, while the conventional three camera models are self-portraits, photographs and panoramic photos. However, we can see a "+" button in the photo interface, click to install more camera mode.
OPPO R7
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OPPO R7 as OPPO's flagship mobile phone, the machine in the fuselage using a all-metal integration of the design, the fuselage through 48 processes, to
2015 female Mobile recommended: OPPO R7 reference Price: 2499 yuan
Recommended reasons: Fashion photo machine, fast charging
OPPO R7 is a flagship fashion photography machine, but also a last month's May 20 just released a new machine soon. OPPO R7 Adopt One metal fuselage design, design inspiration from the violin, the front using 2.5D arc screen, the back des
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