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毗连起来,可工作在多种触摸屏检测技能,包罗电阻和电容触摸屏。主要应用在电子书阅读器,POS,条记本电脑,平板电脑和游戏机。本京电港论坛文章先容了CP2501主要特点,CP2501方框架图和CP250X 开辟板套件主要特点以及开辟板套件中主板和子板电路原理图纸。 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主要特点: Programmable Touch-Screen Interface - Adds Windows-compatible USB HID touchscreen interface to touch-screen modules - 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 - Baud Rates: 9600 bps to 500 kbps SPI Master Interface - 4-wire SPI Master with Chip Select - Configurable Clock Polarity and Phase - Clock speeds up to 4 MHz SMBus / I2C Master Interface - Operates at configurable clock rates up to 400 kHz - Supports configurable slave address GPIO Capability - CP2501 supports 16 GPIO pins - Configurable as inputs, open-drain outputs or push-pull outputs High-Speed 8051 μC Core - 48 MHz or 24 MHz system clock - Pipelined instruction architecture; executes 70% of instructions in 1 or 2 system clocks User Memory Space - 53 kB Flash - 3.5 kB RAM USB Peripheral Function Controller - HID Touch Screen class device - USB Specification 2.0 compliant (full-speed) - Built-in oscillator - Configurable USB parameters such as VID, PID, and strings - Supports remote wakeup Programming Options - Obtain pre-programmed parts from the factory - Program memory in-system - Program over USB using bootloader Supply Voltage 3.0 to 3.6 V - Built-in voltage supply monitor - Built-in 3 V regulator Ordering Information - CP2501-B01-GM (QFN-32, 5x5 mm)Temperature Range: C40 to +85 ℃ CP2501应用: Notebook computers Kiosks Tablets Point of Sale devices E-book readers
CP250X 开辟板套件 The CP2501 Development Kit includes a motherboard that interfaces to a daughter board. The CP2501 Development Daughter Board contains a CP2501 device to be used for preliminary software development. Numerous input/output (I/O) connections are provided on the motherboard to facilitate prototyping. Figure 3 shows the CP250x Motherboard and indicates locations for various I/O connectors and shows the factory default shorting block positions. Figure 4 shows the available CP250x daughter board. CP250X 开辟板套件包罗: The CP250x Development Kit contains the following items: CP250x Motherboard CP2501 Development Daughter Board CP250x Development Kit Quick-Start Guide Product information CD-ROM including the following: SDCC Development Tools Source code examples
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