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grounded by 10K resistors respectively. This approach improves EMC performance, and the 2nd is to remap osc_in and osc_out to PD0 and PD1 respectively, and then configure PD0 and PD1 for push-pull output and output ' 0 '. This method reduces the power dissipation and (relative to the above) saves 2 external resistors. Third, with the HSE clock, the program set the clock parametersProcess：01, re-set the RCC register to the default value rcc_deinit;02,

Transfer from http://blog.csdn.net/adriano119/article/details/5878169 Http://www.cnblogs.com/braver/articles/1935891.html When learning Qt, found that some knowledge has not been commonly used to forget, the following is a book on some of the relevant knowledge of qmake, after their own look, intends to put some often used to write down, finishing. qt programs generally use the qmake tools provided by QT to compile. The Qmake tool can use platform-independent. Pro files to generate platform-rel

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Our "Rhino" task will be successful, snow boots. Three people are cold, although that is not a very advantage. "Oh, my God," he thought, as the rain fell into contemplation, and this movement allowed the light dust to look up at once. The magic blanket shook and flew toward the pyramids. "Qaīn tight hug Lake, snow boot official web.He also liked him a little, snow boots Taiwan. Ask them to do the first poin

How to install Qt-Linux general technology-Linux technology and application information. [Root @ Stu tools] # cd/home/sprife/qt4/for_pc/qt-x11-opensource-src-4.4.0 [Root @ Stu qt-x11-opensource-src-4.4.0] # gmake Cd src/tools/moc/ gmake-f Makefile Gmake [1]: Entering directory '/home/sprife/qt4/for_pc/qt-x11-opensource-src-4.4.0/src/tools/moc' Gmake [1]: Nothing to be done for 'first '. Gmake [1]: Leaving directory '/home/sprife/qt4/for_pc/qt-x11-opensource-src-4.4.0/src/tools/moc' Cd src/tools/

$ ( Ldflags) Do not introduce this, because makefile writing is also a science. Very difficult to write, all have Qmake, cmake these tools to help us generate makefile filesExample three: introduction of MOC The extension of Qt to C + + is mainly 3 aspects: Meta-object system, files that contain q_object macros (. h,. CPP, etc.) require MOC preprocessing Resource system,. qrc files require RCC for preprocessing Interface S

I. the PWM output pin of stm32 is the reuse function of the I/O port. Ii. T2 ~ T5 these 4 Universal timers can output 4-way PWM--CH1 ~ . 3. We will use tim3's PWM output as an example to explain the text (other similar ), finally, we will provide the C code output by the two PWM methods of tim3 and CH2 (the test has been successful on stm32f103rbt6, so you can use it with confidence !). 4. The formula for calculating the PWM frequency and duty cycle is given. The procedure is as follows: 1. Enab

of tim3_ch2 is mapped to pc.7. 1.3 PWM output signal PWM outputs a square wave signal. The signal frequency is determined by the timx clock frequency and the timx_arr pre-divider, the specific setting method is described in detail in the previous study note. The duty cycle of the output signal is determined by the timx_crrx register. The formula is "duty cycle = (timx_crrx/timx_arr) * 100%". Therefore, you can enter a proper number in the CRR to output the square wave signal of the desired freq

./////////////////////////////////////////////////////////////////////////////////////////////////////////////// //////////////////////The complete flow of the STM32 Gpio output high and low levels is as follows:Configure clock → Configure IO port →io port output Highland levelThe 1,stm32 clock is capable of PLL. But I am here to simplify the operation, it is not configured to use only the default clock----internal 8MZH oscillator.2, on the hardware, my LED light is received by PA8. So, how do I

qt programs generally use the qmake tools provided by QT to compile. The Qmake tool can use platform-independent. Pro files to generate platform-related makefile. The tool contains the necessary logic rules for invoking the QT built-in code generation tool (MOC,UIC,RCC). You can enter qmake-project at the command line to generate platform-independent pro files. Project file Pro is divided into three main categories: app (separate application), lib (St

Original URL: https://support.norton.com/sp/zh/cn/home/current/solutions/v59378086_EndUserProfile_zh_cnDepending on the brand and model of your Android device, follow the steps provided in one of the following scenarios:HTC device with a physical button Turn off Android devices. Remove the battery if the device cannot be turned off normally because of a loop. Press the menu button on the device and press and hold. Open the device and press and hold the menu key until the lock s

and the Timx_arr Prescaler, the specific setting method in the previous study note has a detailed account. The duty-free ratio of the output signal is determined by the TIMX_CRRX register. The formula is "duty-ratio = (Timx_crrx/timx_arr) *100%", so you can output the square wave signal of your desired frequency and duty ratio by filling in the appropriate number in the CRR.2. TIMER output PWM Implementation steps1. Set the RCC clock;2. Set the Gpio

These two days reviewed the DAC,DMA plus put the basic timer TIM6 and TIM7 looked, intends to write a comprehensive point of the program,, on the internet to find some about the DAC,DMA and timer related procedures, the final intention to write the output sine Wave program ...Because there is no oscilloscope, it will not show the effect, it is intended to use software debugging to see the effect, but TIM6 always problems, CNT does not self-increase, but I really can not find out what error TIM6,

,//Standalone modeDisable,//Do not turn on scan mode0x000e0000,//software trigger mode0x00000000,//right-justifiedDisable,//Do not use DMADisable,//one-time conversion1//1 channels};void Adc1_chan1_init (){Rcc->apb2enr |= 1 Rcc->apb2enr |= 1 GPIOA->CRL = ~ (0xf Rcc->apb2rstr |= 1Rcc->apb2rstr = ~ (1Rcc->cfgr = 0x0000c000; ADC_APB2 6 Divide 72M/6 = 12MRcc->cfgr |=

I. the PWM output pin of stm32 is the reuse function of the I/O port. Ii. T2 ~ T5 these 4 Universal timers can output 4-way PWM--CH1 ~ . 3. We will use tim3's PWM output as an example to explain the text (other similar ), finally, we will provide the C code output by the two PWM methods of tim3 and CH2 (the test has been successful on stm32f103rbt6, so you can use it with confidence !). 4. The formula for calculating the PWM frequency and duty cycle is given. The procedure is as follows: 1. Enab

by default ). To be understood by QT, these C structures need to be registered. The trick is that at the end of each c ++ file generated by RCC, RCC places a call to the function qregisterresourcedata () that registers the C struct to the QT resource system. PassConstructor function pattern)Qregisterresourcedata () is called before Main.Constructor ModeIt is a global static variable that calls a function t

Timer configuration and realization of light flashing There are 11 timers in the STM32, including 2 advanced control timers, 4 normal timers and 2 basic timers, as well as 2 watchdog timers and a system tick timer. TIM1 and TIM8 are capable of producing 3 pairs of PWM complementary output of the high-level, is often used for three-phase motor drive, the clock is generated by the APB2 output, TIM2-TIM5 is a normal timer, TIM6 and TIM7 is the basic timer, its clock is generated by the APB1 output

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to each other. But from the score on the x doesn't seem to like 2 this content, and y is preferred, the cosine similarity to the value of the sensitivity of the results of the error, the need to correct this irrationality there is the adjustment of the cosine similarity, that is, all the dimensions of the value minus a mean, such as X and Y score mean is 3, then adjusted to (-2, -1), and then the cosine similarity calculation, get 0.8, the similarity is negative and the difference is not small,

probability: 1. Boots 20% 2. Cloak 25% 3. Accessories 10% 4. Two-handed Sword 5% 5. Coin bag 40% The question now is how to drop an item to the player based on probability. I. GENERAL algorithm : Generate a list, divided into several intervals, such as the length of the list 100,1-20 is the range of boots, 21-45 is the cloak of the interval, and then randomly from 100 to take out a number, to