pulse to dtmf

The research has been done yesterday, but due to the patent application, there has been no time to upload, today to fill.Today, mainly using TIM3 PWM input mode, the width of the pulse signal of the rectangular wave and its period of measurement, first look at a picture. Figure 1 Tim Internal logic diagramLet's take a look at what the datasheet says:This mode is a special case of the input capture mode, except for the following differences, the operat

STM32 external pulse ETR pin:tim1-->pa12; timer2-->pa0;timer3-->pd2; TIMER4-->PE0 ...1.TIM2 PA0 Count Configuration steps① turn on TIM2 clock, configure PA0 inputAPB1 Peripheral Reset Register (RCC_APB1RSTR)APB2 Peripheral Clock Enable register (RCC_APB2ENR)Set 1 to open. Clear 0 closed.eg:rcc->apb1enr|=1rcc->apb2enr|=1//enable Porta clockConfiguring I/O ports: See Stm32 Register Edition Learning Note the configuration of the Gpio port.eg:gpioa->crl=0

The method proposed in this paper can be used to evaluate the one-wire (one-Bus) device for Pulse Width coding communication through PC serial port, and monitor communication errors, such as parity and response. The hardware interface with the PC is the maxcompute driver/receiver, and the following device in this example is the TMP141 Temperature Sensor of Texas Instrument. Using four programmable addresses (see Figure 1) of TMP141 determined by A0 an

This article introduces a program of 51 series single-chip microcomputer that uses pulse width modulation (PWM) to control the brightness of LED lights. We all know that 51 Single-Chip Microcomputer itself has no pwm interface. This program is The software simulates pwm and adjusts the duty cycle of high voltage and low level in a certain frequency square wave to realize the brightness control of the LED lamp. In the program, the timer 0 is used to ge

immediately after the layer is joined (or the animation is played at the current time), and if you want to offset 1 seconds (for example), To Cacurrentmediatime () +1, get the absolute time (in seconds) of the current system and +1. We want to achieve the pulse effect, it is necessary to make each animationgroup animation with a different begintime, so to set begintime = Cacurrentmediatime () + Double (i) * Animationduration/double (Pulsingcount), Sw

:f_out=clk0;1:F_OUT=CLK1;2:F_OUT=CLK2;3:F_OUT=CLK3;4:F_OUT=CLK4;5:F_OUT=CLK5;6:f_out=clk6;7:F_OUT=CLK7;EndcaseEndmoduleThe realization of the non-fixed duty ratio (frequency adjustment, the duty ratio will follow the change)Module Pulse_gen(Input clk_in,Inputrst_n_in,Inputkey_menu,INPUTKEY_UP,Inputkey_down,Outputmenu_state,Outputregpulse_out);Debounce for Key_menuDebounce debounce_menu (. CLK (Clk_in),. Rst_n (Rst_n_in),. Key_n (Key_menu),. Key_state (menu_state));Debounce for KEY_UPDebounce deb

example: Void Waitone (){ Lock (_ Locker){ While ( ! _ Signal) monitor. Wait (_ locker );_ Signal = False ; // Enable Automatic shutdown | Yes }} Then Set Method, Set Pulseall Change Pulse Lock (_ locker) {_ signal = true; monitor.Pulse(_ Locker );} If the int type is used_ SignalThen we can get the most basicSemaphore. Waiting queues and pulseall When a redundant thread waits on the same object "Waiting queue(Waitin

through the last mile.There are other ways to get the best of you. For example, if you have the resources of a large company in your hands, you may be able to enter the market a step later than others, but you can still beat your competitors by using a huge market budget or on the basis of the company's existing distribution base. But the situation in the real world of VC after all is very few. Startups often don't win because they have huge resources-their success is often the result of an ins

Fin: Crystal Oscillator frequency M: PLL0CFG [] N: PLL0CFG [] FCCO: PLL output frequency (Phase Lock output frequency) = Fin * 2 * M/N (this is not the case with the calculation formula of S3C2440, for more information, see datasheet) CCLKSEL []: The frequency division value. Set the frequency division of the CCLK from the PLL0 output signal through the CCLKSEL + 1. CCLK: system clock = FCCO/(CCLKSEL + 1) PCLKSEL []: Set the PWM1 peripheral clock frequency. All PCLKSEL are two-digit, PCLK =

X61t l7500 overclocking successful today! Process: Even when we cut the pulse + brush the SPD secret, the rise. 1. kst, one kst in each of the D2 800 records, fl to 533 on the spdtool in another Lenovo notebook, timing 6-6-6-18 2. Shut down and power off, unload the screen, C-shell, take out the motherboard, find the back chip, wave it down, cut off the seventh pin. 3. Load back, Boot, light up. The frequency increases by 33%, and the performance

Pulse network parallel permission + CSRF. Ask Kaifu to send Weibo posts for you. The problem occurred in the http://www.vmaibo.com/timer timed occurrence function set a timed sending microblogging due to the modification function has parallel permissions, can modify others' scheduled microblogging content! That is to say, as long as you know a regular Weibo ID of Kaifu, you can modify the content and the content will be sent from Kaifu's Weibo. You ma

Pulse VC ++ [Author] Bai Qiao; Zuo Fei [same author's work][Description] C/C ++ development expert[Release news agency] Electronic Industry Publishing House [book no.] 9787121086175[Shelving time][Publication date] [Opening] on April 16, July 2009 [Page code] 663 Sample chapter trial and online purchase: http://www.china-pub.com/195701ref=ps [Edit recommendations]This section focuses on the key technologies of Visual C ++.By studying this book, you c

A strange problem occurs: After iis7 is run, iis7 is opened on the taskbar, but the IIS control window cannot be displayed. (my operating system is MS Server 2008 R2). searching the Internet for half a day is fruitless. later, I found that the IIS window can be seen by logging on to the system with another account on the local machine ==> it should be something about some configuration files. So we can see what files are accessed when running IIS, so we found the Free Software disk

wiring of ASICS. The clock available to the FPGA involves the problem of the global clock network. As this does not involve the problem of the artboard, for the clock network is not more than a repeat. How to use the phase-locked loop: First locate and open the Megawizard plug-in Manager in the Tools menu bar and follow the steps below to configure the use of the PLL IP coreThis IP core outputs up to 5 signals, since we only need one output C0, so C1 ~ C4 is set to default (not turn

. BOARD) Gpio.setup (GPIO). Out) P =gpio. PWM (0.5) P.start (1) Input (' Click enter Stop: ') # in Python 2 you need to use Raw_inputp.stop () Gpio.cleanup ()The following is an example of switching LEDs between light and dark:Import Timeimport Rpi.gpio as Gpiogpio.setmode (GPIO. BOARD) Gpio.setup (one, GPIO). Out) Gpio.setup (GPIO). Out) p = GPIO. PWM (P11) = GPIO. PWM (one, P.start) (0) p11.start (0) Try: While 1: for DC in range (0, 101, 5): p.changedutycycle (DC)

("Open port Failed", "hint", System.Windows.MessageBoxButton.OK);return 0;}} private void Port1_datareceived (object sender, Serialdatareceivedeventargs e){Try{SerialPort port1 = Serialportcontrol.port1;StringBuilder currentline = new StringBuilder ();if (Port1. IsOpen){Thread.Sleep (500);while (Port1. Bytestoread > 0){char ch = (char) port1. ReadByte ();CurrentLine. Append (CH);}string[] Currentweight = CurrentLine. ToString (). Split (');if (!string. IsNullOrEmpty (Currentweight[1])){Weight =

CPU to scan the matrix to output the control signal and then let those circuits work as we wish.Of course, it's not over yet, and those circuits work by giving back some signals to the CPU, allowing the CPU to adjust accordingly.In addition, in the CPU also has instruction set (program) They are cured unchanged, is some basic instructions, but also by scanning to let the most basic circuit to complete those basic instructions.So, in the end, functionality becomes incredibly powerful.The machine

new technologies and trends to try to refine and solve some of the problems of existing architectures, such as InnoDB cluster, which can be better addressed for MySQL extensions and high availability.While these new technologies are not yet fully stable and mature, they can easily be expanded into new technology architectures after the subsequent new technology architectures are stable and can be used to better solve business problems.PostScriptThis article attempts to explain the MySQL archite

Introduce a small, but very useful feature. Observe carefully:careful you, estimated to have found, on the way to the shadow part, this little hint in VS is very common, and this tip is also useful. It makes it easier for you to find the same variable within the same scope, improving the readability of your code. This feature of Microsoft, although not very modest, but very intimate, so that users feel love. In fact, Microsoft has been doing a good job of "serving the staff", as long as the soft

radar pulse. The second is the use of attribute animation, if you do not understand, please check, here will not be a lot of introduction. Next, write our activity_main.xml layout file, as follows: In the Activity_main.xml layout we added 4 radarlayout to compare their differences and then write our mainactivity code as follows: public class Mainactivity extends activity { private radarlayout layout1; Private Radarlayout Layout2;