LCD of JZ2440 Development Board

Several important pins of the LCD:

(1) led+\led-These two pins are provided by the boost chip, it is necessary to set the GPB0 high level, in order to make the boost chip to work, and then light the screen

(2) synchronous signal in horizontal and vertical direction, clock signal

　

The units of the vspw\vbpd\vfpd\lineval in the vertical direction are rows (the actual scanning range of the screen is larger than the screen itself).

The horizontal direction of the hspw\hbpd\hfpd\hozval is in pixels

Vden represents the beginning of a pixel

(3) How to write LCD program

1. Turn on the LED backlight

2. Set each time series

3. Save the image in buffer and save the data in the format to determine

(4) The memory of the image data in the form of storage:

The data is stored in 16BPP and 8BPP respectively.

When the LCD is selected, the pixel width is fixed. Now that the pixel is 16bpp, how do you use 8BPP? We're going to use the palette.

32:15

LCD of JZ2440 Development Board