spi tft lcd

Tong qingping, Liu duoren, Xi'an University of Electronic Science and Technology Introduction Based on the ARM920T kernel, the arm 203 microprocessor is developed by Samsung. It has a master frequency of up to MHz and is suitable for information appliance, smart phone, tablet, handheld devices, mobile terminals, and other fields. The integrated LCD controller is universal and can be used with most LCD disp

The time sequence of tft LCD is complex. Therefore, the S3C2440 involves many tft LCD registers. You just need to carefully compare the LCD manual to set the corresponding 2440 register. Tft L

TFT-4238 liquid crystal and the original TFT-6862 difference. The clock and Signal Polarity of this screen is low, and the bit14 of the LCD _pol register (0x3104 0008) needs to be modified to 1. [ARCH/ARM/mach-lpc32xx/clocks-lpc32xx.c] 1623 TMP = ~ (0xf800001f); 1624 TMP = ~ Clcdc_lcdtiming2_bcd; 1625 TMP | = (div 0x1f); 1626 TMP | = (div> 5) 0x1f) TFT

Show size (display size)Refers to the diagonal length of the actual viewable area, in inches, or inch (1 inches = 2.54 centimeters).Aspect ratio (aspect ratio)Refers to the ratio of the length and width of the visible area of the TFT-LCD, also called the screen scale. The main aspect ratio has 4:3,5:4,16:10,16:9 four kinds. A 16:9 ratio is closer to the golden section than the human eye is more comfortable

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The LCD and CPU cables are divided into control lines and data lines. The control lines are generally based on the SPI protocol. We initialize the LCD registers through this. Under the premise that the output format of the main chip is fixed, LCD adjustment is the rest of the initial registers. Generally, we need to ca