Silabs CP2501单片USB HID触摸屏桥接解决方案

Silabs 公司的CP2501是单片USB HID触摸屏桥，通过USB接口把触摸屏控制器和主机连接起来，可工作在多种触摸屏检测技术，包括电阻和电容触摸屏。主要应用在电子书阅读器，POS，笔记本电脑，平板电脑和游戏机。本文介绍了CP2501主要特性，CP2501方框图和CP250X 开发板套件主要特性以及开发板套件中主板和子板电路图。

CP2501 Single-Chip USB HID Touch-Screen Bridge

The CP2501 USB touch screen bridge connects the touch screen controller with the host through a USB interface. The bridge works with various touch screen sensing technologies, including resistive and capacitive touch. Designers can connect a touch controller using an I2C, UART or SPI interface to a PC system through USB.

CP2501主要特性：

Programmable Touch-Screen Interface

- Adds Windows-compatible USB HID touchscreen interface to touch-screen modules
 
- Supports multiple touch points and pen inputs

- Supports basic mouse functions

- Includes a programmable 8051-based controller that is pre-programmed with USB interface

- Supports most common touch-screen module  interfaces: UART, SPI and I2C. UART Interface

- Data Bits: 5, 6, 7, and 8

- Stop Bits: 1, 1.5, and 2

- Parity: Odd, Even, Mark, Space, and None
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