pulse kodi

is similar to enter (), except that it is non-blocking. If the exclusive access to the resource has been occupied by another thread, this method immediately returns a false return value. We can alsoCall the tryenter () method to block a period of time in milliseconds. Because the returned results of this method are not determined and must be in the finally clause after obtaining the exclusive accessRelease this power, so it is recommended to immediately exit the function being called when tryen

access the specified code segment at a given time. The monitor class is very suitable for Thread Synchronization in this case. The methods in this class are static, so you do not need to instantiate this class. The following static methods provide a mechanism for synchronizing Object Access to avoid deadlocks and maintain data consistency. Monitor. Enter method: Obtain the exclusive lock on the specified object. Monitor. tryenter method: attempts to obtain the exclusive lock of the specified ob

Because the chip used to participate in the computer mouse is the stm32 series, coupled with relatively tight time, we basically learn while doing the module. I encountered a lot of difficulties, but I still felt that I had learned a lot and wanted to share it with me .. Okay, let's just talk about it. Pulse Width Modulation (PWM), short for "Pulse Width Modulation, it is a very effective technology that us

; somi: Master input, slave output (output from slave ); § SS: slave select (active low, outputfrom master ). SPI is a [Single-master] communication protocol, which means that only one central device in the bus can initiate communication. When the SPI main device wants to read/write [slave device], it first lowers the SS line corresponding to the [slave device] (SS is valid for low level ), next, we start to send the working pulse to the clock line. I

. After the external request signal passes through the 3 or door, it enters the 5 depressed. This is similar to the door which acts on the 4, it is used to introduce the control of event shielding registers. The pulse generator converts a hop-to-hop signal to a single pulse and outputs other functions to the chip, From this figure, we can see that there is no difference between the interrupt and the event f

of software development, Microsoft Press, 1995), treat the daily build as the heartbeat of the project. If There's no heartbeat, the project is dead. A little less metaphorically, Michael cusumano and Richard W. Selby describe the daily build as the sync Pulse of a project (Microsoft secrets, the Free Press, 1995). Different Developers 'Code is allowed to get a little out of sync between these Pulses, but every time there's a sync

Design of wireless distributed medical care system [Date:] Source: Electronic Technology Application Author: Wu Li Zhu Yu Cai Bo [Font:Large Medium Small] 　 Multi-parameter monitor is an important equipment in clinical care. It can monitor the physiological parameters of patients, such as ECG, blood pressure, blood oxygen saturation, respiratory rate, pulse rate and temperature. Currently, portable monitors with CRT or LCD display

sensors. The accuracy of the temperature sensor is user-programmable 9, 10, 11 or 12 bits, respectively at 0.5 deg C, 0.25 deg C, 0.125 deg C and 0.0625 deg C increment. The default precision is 12 characters. So we can clearly see the relationship between the conversion digits and the conversion time. The temperature register format is as follows: Ii. Let's take a look at how to control this chip. A. Agreement: Single-bus serial communication protocol, which is slightly different from common

categories. Based on the probability score of noise, it can be divided into Gaussian noise, Riley noise, gamma noise, exponential noise and even noise. Their probability density functions (PDF) are as follows: (1), Gaussian Noise In spatial and frequency domains, Gaussian noise (also known as normal noise) models are often used in practice due to their mathematical ease of processing. The following PDF of Gaussian random variable Z is provided: Where, Z indicates the gray value, μ indi

Public Class Cell{ Bool Flags = False ; Int Result = 0 ; Public Void Write ( Int N){ Lock ( This ){If (Flags){ Try {Monitor. Wait ( This );} Catch (Threadstartexception E){Console. writeline (E );}}Result = N;Console. writeline ( " Write: {0} " , Result );Flags = True ;Monitor. Pulse ( This );}} Public Int Read (){ Lock ( This ){ If (! Flags){ Try {Monitor. Wait ( This );} Catch (Threadstartexception E){Console. writeline (E );}}Console. writel

only used for the synchronization of Instantiation methods and domains. All objects in the same context domain share the same lock.Monitor classOnly one thread can access the specified code segment at a given time. The monitor class is very suitable for Thread Synchronization in this case. The methods in this class are static, so you do not need to instantiate this class. The following static methods provide a mechanism for synchronizing Object Access to avoid deadlocks and maintain data consis

on the length of the optical cable to display the test curve in the middle of the screen as much as possible so that the reading can be accurate, the error is small. 2) Select the appropriate pulse width: OTDR can select the optical pulse width parameter injected into the tested optical fiber. In the case of the same amplitude, the energy of the wide pulse must

to the interference of signals sent by devices on the same side of the cable to receive signals on other lines. The near-end crosstalk indicators of the user cables that activate the ADSL service in each frequency in the ADSL band should be less than-40 dB. The maximum number of users of cables with poor near-end crosstalk indicators is small. 8. Remote crosstalk FEXT) Remote crosstalk mainly refers to the interference of signals sent by devices at both ends of the cable to receive signals on

connection point. In order to test the accuracy, the pulse size and width of the OTDR tester should be appropriately selected and set according to the index of refractive index n given by the manufacturer. When determining the fault point, if the optical cable length is unknown in advance, you can first put it in the automatic OTDR, find the general location of the fault point, and then put it in the advanced OTDR. Select a smaller

Master);§miso; Somi:master Input, Slave output (output from Slave);§ss:slave Select (Active low, Outputfrom master).The SPI is a [ single-Master device (Single-master)] communication protocol, which means that only one central device in the bus can initiate communication. when the SPI master device wants to read/write [slave device], it first pulls down [from the device] corresponding to the SS line (the SS is active low), and then began to send the work pu