Industrial CPLD + SDRAM 7-inch touch display solution provides products
Super anti-interference, do not crash spike SSD1963 and RA8875
8080 Timing 16bit parallel bus interface, resolution 800 × 480, 16M color display panel, integrated 8-inch display (memory could ever be used as extended memory). Inside the module using CPLD + SDRAM mode to drive RGB interface display, no further initialization, the bus interface and conversion between RGB interface also provides a range of useful features, details, please refer to the following register descriptions and Demo program.
Support for 51, AVR, STM32 microcontroller and other types of direct drive
Advantages:
Super stability
Job stability of the module with super anti-jamming capability , far beyond driven solutions on the market SSD1963 , SSD1963 interference poor, black and white with crash risk .
Speed and simplicity
This module provides 8 memory can write data to achieve the background , a command instantly switch full screen display data , far beyond the market RA8875 driver program.
Eliminating the need for a general need cumbersome TFT controller initialization code , without initialization , just need to do a reset operation can begin work . Only need to use at least five stacker instruction can operate normally. Greatly simplifies the code , reducing the difficulty of debugging and error probability .
Fast response , can achieve 200ns read and write cycles . Fastest achieve 13 frames in full screen refresh rate , integrated 8MB SDRAM display buffer corresponding to 8 . Showing page register read and write page register set independently , the currently displayed page and the page can be read different pages , facilitate the achievement of the background written, full page fast switching.
Show effects:
TFT driver timing and circuit design have been optimized to ensure accurate color reduction, display a stable , flicker or eliminate channeling color , and provides LED backlight driver , brightness from 0 ( closed ) to 16 ( full ) between regulation.
寄存器列表:
CS
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RS
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DATA[15:0]
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WR
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RD
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功能
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0
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0
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0x0001
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0
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×
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地址指向背光亮度寄存器
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0
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1
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0 – 16
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0
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×
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背光亮度值(默認:0)
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|
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|
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0
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0
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0x0002
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0
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×
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地址指向起始行地址寄存器
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0
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1
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0 – 480
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0
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×
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寫入9位的起始行地址
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|
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|
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0
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0
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0x0003
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0
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×
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地址指向起始列地址寄存器
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0
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1
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0 – 800
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0
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×
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寫入10位的起始列地址
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|
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0
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0
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0x0006
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0
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×
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地址指向結束行地址寄存器
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0
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1
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0 – 800
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0
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×
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寫入9位的結束行地址
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|
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|
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|
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0
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0
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0x0007
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0
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×
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地址指向結束列地址寄存器
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0
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1
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0 – 800
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0
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×
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寫入10位的結束列地址
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|
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|
|
|
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0
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0
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0x0004
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0
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×
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顯示頁寄存器
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0
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1
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0 –最大頁
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0
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×
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寫入(設置)被顯示頁的頁地址(上電默認為第0頁)
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|
|
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0
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0
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0x0005
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0
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×
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讀寫頁寄存器
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0
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1
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0 –最大頁
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0
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×
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寫入(設置)當前讀寫頁的頁地址(上電默認為第0頁)
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|
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|
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0
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0
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0x000B
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0
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×
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休眠狀態(tài)寄存器
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0
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1
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0x0000–0x0001
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0
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×
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0x0001-進入休眠
(進入休眠后只要任意發(fā)一條讀寫命令,即可退出休眠狀態(tài)。)
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0
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0
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0x000C
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0
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×
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顯示狀態(tài)選擇寄存器
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0
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1
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0x0000–0x000F
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0
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×
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Bit0:U/D(屏幕上下翻轉(zhuǎn)顯示)
Bit1:L/R(屏幕左右翻轉(zhuǎn)顯示)
Bit[3:2]:0(正常顯示)
Bit[3:2]:2(液晶屏自檢模式)
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