PC cannot communicate with the terminal
Case 1: The baud rate of the computer software does not match the one of the terminal.
Solution: The factory default baud rate of the terminal is 115200, the baud rate of the computer should also be set to 115200, or, the communication fails. If a customer changes the baud rate of the terminal and does not know the figure he/she changes to, he/she could search it by using the ‘serial port adjust assistant”. Here below is the specific operating method.
1. Tick the ‘HEX send’ option;
2. Input handshake order AA 00 CC 33 C3 3C to the ‘character input frame’;
3. Set the timed sending to 100ms/ per time, tick the ‘timed Now the software should be sending the order through the serial port continually.
4. Choose the baud rate; use the mouse to choose a random baud rate and roll the pulley. If the communication is successful, there should be a return value on the main window, then the baud rate on the window would be the present baud rate of the terminal.
Case 2: The serial port of the PC is being occupied.
Solution: Shutting down all the other programs and soft wares running on the PC which are occupying the serial port.
Case 3: The cable between the terminal and the serial port of the PC is disconnected.
Solution: Check if the cable is well connected, especially on the connecting point between the flat wire and the serial port DB9. If it’s disconnected, you need to reconnect them by jointing or by changing to another cable.
Case 4: Short circuit of the jumper wire which is used for setting the baud rate.
Solution: After the short circuit operation, the baud rate should be 921600, disconnect the short circuit and the baud rate should be the one set by the customer, which is the factory default value 115200bps.
Abnormal display of the terminal
Case 1: the configuration parameter error of the terminal’s display caused by the customer’s incorrect operation.
Solution: This problem will only occur when using the program version under V5.3. Since for program V5.3 and programs above it, the customer cannot change the configuration parameter of the display. When this happened, you have to refer to part of the TFT_ID parameter diagram in the ‘working mode configuration’ of the ‘instruction set’ and to find the corresponding TFT_ID, then to change it by using EO order of the ‘system parameter setting’ icon under the ‘developing and demonstrative assistant’ option.
Case 2: Poor contact between the linking module set and the white cable of the wire board.
Solution: check the cable and make sure it’s well connected.
Case 3: Dazzling monitor occurs when issuing the picture.
Solution: Choose the right resolution (in the drop down list of control panel on the left side of TerminalAssistant.exe).
Blank screen or no display on the terminal.
Case 1: The voltage input is too low.
Solution: Refer to the product data manual and choose the typical voltage input;
Case 2: Case 2: The background light is turned off because the receiving of a background light turned-off order.
Solution: To check if you have sent an order to turn off the background light. If you have done that, you just need to restart the terminal again and it will be recovered. The setting of the background light volume would not be saved automatically.
Unable to display the text correctly, display unrecognizable or no text displayed.
Case 1: When using the 98 order, the definition is incorrect.
Solution: Refer to the specific definition of 98 orders in the ‘instruction set’, or consult with technical support.
Case 2: When testing with the software, the display is unrecognizable.
Solution: The coding pattern of the transferred word stock should be in accordance with and lattice size of it.
The touch screen is not accurate or unable to operate on
Case 1: Infrequent adjustment lead to the low accuracy.
Solution: To use the ‘adjust the touch screen’ function under the ‘peripheral’ option of the Terminalassistant software. After the adjustment, you could test the touch screen.
Case 2: The poor contact between the connecting line of the touch screen and the PCB board.
Solution: To check whether the connection between the connecting wire of the touch screen and the pin on the back is loosen; if it’s loosen, adjust it and make it perfectly connected.
Case 3: The touch screen has not been set to the switch mode.
Solution: When finished the process of setting the touch screen interface, you need to use OxEO order or by clicking the ‘system parameter setting’ icon under the ‘developing and demonstrative assistant’ option of Dwin’s terminal, and to set the touch screen to the corresponding switch mode. For further explanation please refer to ‘instruction set’ OxEO.