1. In order to avoid boring and help friends understand better, I will use an example to describe the writing of a driver for S3C2410 (the initialization source code of this article is based on s3c2410fb.c provided by Huaheng Company) and the writing of a simple GUI program. 2. When you get an LCD, you must first connect the various control lines of the LCD to the LCD control signals of S3C2410. Of course, the power supply must also be connected, otherwise don\'t come to me if it doesn\'t light up. In addition, you need to pay attention to the following points: 1) Backlight: For most color LCDs, you must connect the backlight so that we can see the content on the screen; 2) Control signal: Different LCD manufacturers have different names for control signals. The S3C2410 chip manual also gives multiple names for a signal (Figure 1). This depends on the skills of your hardware engineers. Figure 1 The names and explanations of the control signals given in the S3C2410 manual Here I will give a brief introduction: VFRAME: The frame synchronization signal between the LCD controller and the LCD driver. This signal tells the LCD screen that a new frame has begun. The LCD controller immediately inserts a VFRAME signal after a complete frame display is completed to start a new frame display; VLINE: The line synchronization pulse signal between the LCD controller and the LCD driver. This signal is used by the LCD driver to transfer the contents of the horizontal line (row) shift register to the LCD screen display. The LCD controller inserts a VLINE signal after the entire horizontal line (entire row) data is shifted into the LCD driver; VCLK: The pixel clock signal between the LCD controller and the LCD driver. The data sent by the LCD controller is sent at the rising edge of VCLK and at the falling edge of VCLK...
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