| Amulet Easy GUI LCD控制方案 |
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| 作者：未知 来源：Amulet 点击数：56 更新时间：2008-8-4 |
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微处理器,UART,定时器和SPI主接口.它不需要复杂的编码来画出LCD上每个象素.这将使得嵌入的微处理器能更有效地工作,主要的应用将可采用更少的RAM和ROM的更小处理器,代码开发和维护时间将大大地降低.本文介绍了Easy GUI Browser的主要特性, 方框图和典型电路方框图,以及案例参考设计电路图和所用元件列表.
The Amulet is a powerful 8-bit microcontroller featuring task specific opcodes, registers, and memory segments allowing for optimization of graphics rendering, I/O processing, and general purpose computing. The Amulet is equipped with the following built-in peripherals:
LCD Controller
Microprocessor
UART
Timers
SPI Master
Amulet Easy GUI Browser Chip is a special purpose micro controller that is optimized to
execute Amulet’s GUI kernel and component based GUI firmware, The chip is a combination LCD controller chip and a user interface chip.
This chip eliminates the need for complex code to draw each pixel on a LCD. The chip renders GUI pages containing graphic images, Amulet Widgets, and other UI objects directly to the LCD.
This lets your embedded micro do it’s job more efficiently. Thus, the main application can run on a smaller processor with less RAM and ROM, and code development and maintenance time is Significantly reduced.
主要特性:
Dedicated GUI Chip - Manages the GUI, Interacts with the user, and controls the LCD – Frees up your Micro!
HTML-Based GUI Creation – Create and edit Quickly using drag-and-drop HTML tools
Compiler Included – Converts from HTML,JPEG, and GIF into small, quickly-executable Amulet HTML pages
Processor Independent – Easily interfaces to Most micro controllers (8/16/32-bit and DSPs)
Replaces Traditional GUI Library – No Library porting, complex GUI programming, or RTOS required
RS232 Interface – Up to 115,200 bps
Requirements
3.3V Power Supply
Serial Flash (Atmel 4 Megabit recommended)
Asynchronous SRAM (128Kx8 Minimum)
Clock/Crystal (up to 20 MHz.)
图1. Easy GUI Browser典型电路方框图
Typical Circuit Block Diagram
The Easy GUI Browser chip has 13 dedicated output lines for LCD control of various sized sub-VGA displays. The chip is able to drive different size displays because the bias voltage, which determines the LCD driving voltage, is supplied from an external source.
Supply voltage: 3.3V +/- 10%
Applicable LCD duty: up to 1/640 (adjustable in single increments)
Block Diagram
图2.Easy GUI Browser方框图
图3. Easy GUI Browser案例参考设计电路图
参考设计所用元件列表:
详情请见:
http://www.amulettechnologies.com/pdf/_brochure_ds/dataSheet.pdf
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