User's Manual
Table Of Contents
- 一、Functions and features
- 三、Development and debugging
- 3.3.2 Burning steps
- 1) Before burning the picture font library, make sure that the bottom layer has been burned. You can open the configuration debugging interface to connect to the code file to observe whether it can communicate. If it fails to communicate, first reset ...
- 2) After adding the files to be burned in the U disk according to the second step, connect it to the USB port of the motherboard, and then power on the motherboard.
- 3) Under normal circumstances, the display screen will start to flash and display burned pictures after a few seconds, and the U disk indicator light will start to flash.
- 4) If you cannot see the burning process, please make sure to unplug the U disk under the premise that the U disk indicator is not flashing.
- 四、Description of environmental indicators
- 五、Connect with external controller
- 空白页面
Figure 2 Schematic diagram of external controller connection
6.Common troubleshooting
1. The connection between the display case and the grounded metal part should have a low impedance value. It
is qualified by the following test. When the transient interference is injected, the voltage drop is measured
between the controller case and the grounded metal parts. It is required that the voltage Umax on the case
should not be greater than 0.8V (TTL low level threshold) during the entire process of interference injection;
According to some characteristic parameters during the interference injection, the required ground impedance
range is calculated: in the 0-100MHz frequency band, the impedance value shall not exceed 60 milliohms;
2. In addition to the good grounding of the display shell, all input and output points of sensors, loads, etc.
connected to the display must be connected in a closed loop, that is, all input and output grounds must be
connected to the corresponding ground of the display.
3. The common reasons for unsuccessful burning of picture fonts are as follows:
The configuration file does not exist or the content is wrong
Wrong naming of the folder to be burned, no burned file or wrong file naming format
Problems with the USB flash drive or motherboard
The underlying program is not burned or the version is wrong