1. SPI interface
Serial Peripheral Interface (SPI): Serial peripheral interface. It was first defined by Motorola on its MC68HCXX series of processors. It enables the MCU to communicate serially with various peripherals to exchange information. SPI has three registers: Control Register SPCR, Status Register SPSR, and Data Register SPDR. PERIPHERALS INCLUDE FLASHRAM, NETWORK CONTROLLERS, LCD DISPLAY DRIVERS, AD CONVERTERS, AND MCUs. The SP interface is mainly used in EEPROM, FLASH, real-time clocks, AD converters, and digital signal processors and digital signal decoders.
2. 2C interface
12C (Inter-Integrated Circuit): The I2C bus is a two-wire serial bus developed by NXP (formerly PHILIPS), and the main advantage is its simplicity and effectiveness. Buses are used to connect microcontrollers and their peripherals. Another advantage of the 2C bus is that it supports multimastering, where any device capable of transmitting and receiving can become a master bus. A master controls the transmission of signals and the clock frequency. Of course, at any point in time only
There is a master control.
3. CPU interface
After the mobile phone entered the era of large screens, the transmission speed of the parallel port could not keep up, especially in the face of high-definition playback applications, the ability was insufficient, so MDDI and MIPI appeared.
4. RGB interface
The large screen adopts more modes, and the data bit transmission is also divided into 6 bits, 16 bits and 18 bits. The connection line generally includes: VSYNC, HSYNC, DOTCLK, VLD, ENABLE, and the rest is the data line.
5. LVDS interface
LVDS (Low Voltage Differential Signaling) is a low-voltage differential signaling technology interface. It is a digital video signal transmission method developed by United States NS company (United States National Semiconductor Company) to overcome the shortcomings of high power consumption and EM electromagnetic interference when transmitting broadband and high bit rate data in TTL level. The LVDS output interface can achieve low noise and low power consumption.
6. MDDI interface
MDDI (MobileDisplayDigitallnterface): An interface proposed by Qualcomm in 2004 to improve the reliability of mobile phones and reduce power consumption by reducing the number of wires, which will replace the SP mode as a high-speed serial interface in the mobile field. The connection is mainly host_data,host_strobe,client data,client _strobe,power,. GND a few wires.
7. MIPI connection
Chuan P is an organization jointly established by a number of heavyweight manufacturers, which has launched a series of mobile standards, including MIPI DS. MP has not been launched for a long time, but it has been promoted quickly, including the iPhone 4 Meizu M9 with MIPI interface (probably most of them except for Qualcomm mobile phones now). The MIPI interface has a physical specification, because the DS-enabled development board and LCD we have seen are all mip specification cables.
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Velun Tong Touch Screen EBPro Software Knowledge Points (1-20)
1. Background color:
Right-click on the blank space of the window, select Properties, Pop-up Settings, and select a color in the background;
Hatch: In the background, tick the fill, select the pattern color and pattern.
2. Picture/Background Image:
Select Picture Element ...
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Weiluntong touch screen - capacitive touch screen component classification introduction
The types of capacitive touch screens are divided into two types: surface capacitive touch screens and projected capacitive touch screens.
Surface capacitive touch screen
Commonly used is the surface capacitive touch screen, which has a simple working principle, low price, and simple circuit design, but it is difficult to achieve multi-touch.
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How to update the software of Velonton
1. Copy the required OS to a USB flash drive (FAT32 format is only supported); For example, in the next test, place the OS file in the firmware folder at the root of the USB flash drive.
2. Plug the USB flash drive into the USB host port of the HMI to be updated;
3. Click the arrow in the bottom right corner of the screen ...
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Common faults in the maintenance of the man-machine interface and the maintenance of the dark screen
1. Dispose of dirt and grease on the touch screen
The accuracy of the screen is a characteristic of grease build-up on the surface, which can make it cumbersome to type the correct commands. In addition, due to the accumulation of dust caused by overheating, the internal components of industrial computers may not work properly. The use of microfiber ...
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Weiluntong touch screen - the advantage of capacitive touch screen
1. Novelty of operation
The capacitive touch screen supports multi-touch, making operation more intuitive and fun.
2. It is not easy to be touched by mistake
Because the capacitive touch screen needs to sense the current of the human body, as long as the human body can operate it, there will be no ...
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Weiluntong CMT-IPC15&CMT3151 new product released
cMT3151 can be stored in the form of data streaming, avoiding the SD card or USB when storing data due to falling off and unable to produce a complete storage record; At the same time, the abnormal operation of the machine is recorded, and the user is assisted in tracking and analyzing the source of the problem. cMT-iPC15 Built-in Error Correction Code (ECC) ...
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The inspection method of Weiluntong touch screen slow response
1. Check the appearance of the touch screen: Observe whether there is dirt, fingerprints or scratches on the surface of the touch screen, which may affect the sensitivity and accuracy of the contact. Use a soft cloth or a special Velonton touch screen cleaner for cleaning.
2. Closed other applications: fake ...
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Weilun touch screen communication anti-interference measures
When the HMI communication failure is caused by on-site interference, the following methods can be used to troubleshoot the fault:
The communication line adopts shielded twisted pair cable, and the shielding layer needs to be grounded at one end, that is, only one end of the PLC and the touch screen can connect the shielding layer to the ground horn (it is recommended to connect it to the HMI end of the touch screen) ...
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Weiluntong touch screen can not be turned on, fault analysis and maintenance steps
1. The power cord is not properly connected
This may seem obvious, but make sure the power cord is connected to the back of the touchscreen and plugged into a power outlet. If it looks like it's connected correctly, disconnect and reconnect both ends of the power cord to make sure the cable isn't loose.
2. The power cord is damaged
...
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Weiluntong touch screen - seven knowledge points about touch screen
1. Can the human-machine interface be connected to the PLC?
That's not true. Human-computer interface products are produced to solve the human-computer interaction problem of PLC, but with the development of computer technology and digital circuit technology, many industrial control equipment have serial communication capabilities, so as long as there is ...
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Precautions for daily maintenance of Weilun touch screen
Due to the environmental adaptability of Weilun touch screen, especially the surface sound wave screen, the screen will affect the normal use due to water droplets, dust and other pollution, so the touch screen also needs regular maintenance like ordinary machines.
1. Wipe the screen with a dry cloth every day before turning it on.
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The advantages of Weilun touch screen touch
Gesture control is like swiping a mobile phone, and industrial products are no longer monotonous and boring
The new cMT X-Series HMI supports touch gestures. Users can swipe, grab and other gestures to operate the interface, and no longer need to use buttons, they can operate functions on the HMI, providing more convenient and more ...
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Weiluntong touch screen download is the solution to Chinese and English garbled characters
1. Enter the Weiluntong touch screen setting interface, find the input method option, and change it to the corresponding text type (such as Chinese Simplified, English) to solve the problem.
2. Install the corresponding input method, which can also solve this problem.
...
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Veriton: With it, HMI can also diagnose PLCs remotely!
With the advent of the Internet of Things (IoT) era, more and more PLCs and controllers support web servers, which are convenient for users to directly modify the content of various system parameters in the equipment and monitor their operating status through the "web interface".
In the face of this trend, Weilun Tong new ...
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How to animate the touch screen of Weiluntong?
1. Add what you need as a picture to the picture library.
2. Create animations with animation tools.
3. There is a (upper right) button in the toolbar of Weilun Tong programming software, that is, the animation button, click on the 3 tracks of the animation movement on the program drawing interface and then right-click, you can ...
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Where is the Vilun Tong touch screen (GP0) set up?
1. Generally, in the lower right corner of the touch screen, there is a small black arrow button, click and enter the correct password, you can enter the system settings. However, when configuring, you can disable this button in the software system settings.
2. Set the system bit LB-9020 in the touch screen to ON...
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Key points for the selection of Weiluntong touch screen
1. Consider the size, how big the screen is, 7 inches or 10 inches, etc
2. Whether there is an Ethernet communication interface or a USB interface
3. Consider the type of interface supported by the touch screen, RS232/RS485 interface
4. Whether there is a general agreement, so that it can cooperate with different brands...
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The steps of Weiluntong touch screen CMT to MT copy screen
1. Press the "Menu" button to enter the menu interface.
2. Select the "Picture" option to enter the screen settings interface.
3. In the screen settings interface, find the "Copy" option and press the "Enter" key to enter.
4. In the "Copy" option, select "Copy...
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The maintenance method of the touch screen of Weiluntong
Weiluntong touch screen, also known as "touch screen", "touch panel", is a kind of inductive liquid crystal display device that can receive input signals such as contacts, when touching the graphic buttons on the screen, the haptic feedback system on the screen can drive various connection devices according to the pre-programmed program, which can be ...
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The role of the macro on the touch screen
Weilun Tong macro is a programming language for human-computer interface interaction development, which is based on a programming language developed by Microsoft in the early VB, macro provides EBPro application outside of some additional functions you need, macro is widely used, almost PLC control ...
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