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controls and device management are in the IRF group of S5820V2, and other S5120HI operations are in line card mode. In this SDN architecture, the H3C RIPC protocol eliminates the lack of efficiency and management of OpenFlow protocol, and effectively inherits the original IRF advantages of the H3C Comware platform. 2.3 Open API-Based Network Platform SDN's most important network requirement is programmability, that is, users can develop their own software as needed when their services change, t

be used in the main ADC1. The internal reference voltage Vrefint is not the same as the reference voltage. The reference voltage of the ADC is provided by the vref+ and serves as the reference voltage for the ADC converter. When we use the vref+ directly from the VCC voltage, when the VCC voltage fluctuation is relatively large or the regulator performance is poor, the internal reference voltage of the STM

is very small, so that the RC constant is very small, and the transformation speed is very fast. Therefore, the push-pull output level not only improves the load capacity of the circuit, but also increases the switching speed. Open-drain output: the output end is equivalent to the collector of the transistor. To obtain a high-level state, the output end must be able to pull up the resistor. It is suitable for current-type drive and has a strong ability to absorb the current (generally less than

, which is a way for information exchange between the microcontroller and the outside world. Later, we will focus on the I/O port. In addition to 32 I/O ports, there are eight pins: 29 ~ The 31st foot is rarely used and will not be introduced for the time being; 40-foot VCC, 20-foot Gnd, 9-foot rst, and 18, 19-foot xtal1, xtal2 will soon be detailed in the following single chip microcomputer minimum system. What is the minimum single-chip microcompute

The example in this article describes the method for generating orders before payment is realized by Zen_cart. Share to everyone for your reference, specific as follows: Other than PayPal. The customer enters the index.php?main_page=checkout_confirmation through the other payment method to be able to produce the order.But!! PayPal is a little different, it can only be from its official website [paypal.com]

SCM Control Board in the design process, if you can follow the following several principles, the boss must praise you!(1) In the layout of components, should be related to each other components as close as possible, for example, clock generators, crystal, CPU clock input is easy to produce noise, when placed should be close to them. For those prone to noise of the device, small current circuit, high-current circuit switching circuit, should try to keep it away from the microcontroller logic cont

Calculation Formula of capacitor charge discharge time Set, V0 as the initial voltage value on the capacitor;V1 is the final charged or placed voltage value of the capacitor;VT is the voltage value of the capacitor at t time.Then,Vt = "V0" + (V1-V0) * [1-exp (-T/RC)]Or,T = rc * ln [(V1-V0)/(V1-Vt)] For example, a battery with a voltage of E is charged to a capacitor C with a initial value of 0 through R.V0 = 0, V1 = E, so the voltage charged to the T moment capacitor is:Vt = "E" * [1-exp (

1. System FunctionsMonitoring of soil moisture, ambient temperature, light intensityAutomatic watering according to current environment, cold weather automatically heats soil2. Required ComponentsTpyboard Board 1 pieces Photosensitive Module 1 blocksDs18b20 Module 1 block Soil Moisture Detection Module 1 blockDuPont Line severalRelays 2 x3. Wiring Method photosensitive module Tpyboard v102 VCC 3.3v

-interference, improve the reliability of the circuit work. (2) As far as possible in key components, such as ROM, RAM and other chips next to the installation of decoupling capacitor. In fact, printed circuit board traces, pin connections and wiring can contain a large inductance effect. A large inductor may cause severe switching noise spikes on the VCC line. The only way to prevent the switching noise spikes on the

How to rename files on the server? In the public_html/login/paypal logo.png file The requirement is to write a program Paypal logo.png? Paypal-logo.png How? Reply to discussion (solution) Rename ('PayPal logo.png ', 'paypal-logo.png '); $ File_name = '

(DatabaseTransactionLog.class).to(MySqlDatabaseTransactionLog.class); }} In this case, when a transactionlog object is requested, the injector returns a mysqldatabasetransactionlog object. Ii. Bind Annotation In some cases, you may want to set multiple Bindings for the same type. This can be achieved through binding annotations. The annotation and binding type are used to uniquely meet a binding, Together, it is called a key. Example: package example.pizza;import com.google.inject.BindingAn

, affordableHardware connectionAM2320 altogether has 4 interfaces, 1 Connect 5v power supply, 2 Ardunio a4,3 grounding wire, 4 Ardunio A5Connect your computerArdunio Mini Pro requires FTDI-232 connection to PC, Wired Ardunio vcc-ftdi VCC, Ardunio gnd-ftdi gnd, Ardunio tx-ftdi Rx, Ardunio rx-ftdi TX, Ardunio Rst-ftdi rstIf you have already used the buck module to connect the Ardunio power supply, do not conn

Tag: New state Operation direct IMG Injection application delayOne, open collector output1, open collector output principleOpen Drain and open Collector are often encountered in the circuit of the two cases. The "drain" referred to in the concept of the open drain circuit refers to the drain of the MOSFET. Similarly, the "set" in the open collector Circuit refers to the collector of the transistor. In digital circuits, they are referred to as OD gate and OC Gate respectively.The open collector c