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LeveTop LT768 Series Manual

Show up tft panel process and precaution
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LT768x Show up TFT Panel Process and Precaution
A. Power Supply
1、Before power on, make sure no short circuit and abnormal.
2、Check if LT768x VDD voltage is stable at 3.3V.
3、Check if LT768x VDD_C voltage is stable at 1.8V.
Figure 1：LT7681/LT7683/LT7686 Pin Assignment（LQFP-128Pin）
Figure 2：LT7680 Pin Assignment（QFN-68Pin）
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Summary of Contents for LeveTop LT768 Series

  • Page 1 LT768x Show up TFT Panel Process and Precaution A. Power Supply 1、Before power on, make sure no short circuit and abnormal. 2、Check if LT768x VDD voltage is stable at 3.3V. 3、Check if LT768x VDD_C voltage is stable at 1.8V. Figure 1：LT7681/LT7683/LT7686 Pin Assignment（LQFP-128Pin） Figure 2：LT7680 Pin Assignment（QFN-68Pin）...
  • Page 2 B. Crystal Make sure the clock input or the crystal oscillator (usually 10MHz) start oscillation (measured with an oscilloscope). If there is no oscillation, check the clock source or the RC circuit of the crystal oscillator used the correct resistor value, or replace the crystal oscillator. Figure 3 ：...
  • Page 3 C. Reset Confirm that the RST# reset pin can be properly controlled by the MCU. This pin should be high potential after reset. Figure 6 ： External Reset Method - 1 Figure 7 ： External Reset Method - 2 D. Test Pin Confirm that the TEST[2:0] pins are grounded (Figure 6, Figure 7).
  • Page 4 MCU and LT768x. 4、 Check whether the MCU and the LT768 communicate normally through the Initialization Function provided by the Levetop. 5、 Use the Display-ON Function which provided by Levetop to enable the LCD output a normal signal. G. Display 1、If the above steps are normal, and the MCU program has controlled the LT768x output , such...
  • Page 5 STC8051+LT768 demo board provided by Levetop, and the TFT module design guidance based on LT768x to the for the factory, the flash burn methods. 2、 For different MCUs, different serial/parallel ports, 24bit RGB or 16bit RGB, Levetop provides a simple Demo program (STM32+LT768 Simple DEMO.rar, STC8+L768 Simple...

This manual is also suitable for:

Lt7683Lt7680Lt7681Lt7686

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