四位数码管从一数到F,LED就向下移一位c语言代码
上传时间: 2014-12-25
上传用户:1214209695
基于HT47C20L的R-F型低电压八位Mask单片机 HT47C20L 是8 位高性能精简指令集单片机。单指令周期和两级流水线结构,使其适合高速应用的场合。特别适用于带LCD 的低功耗产品,例如:电子计算机、时钟计数器、游戏产品、电子秤、玩具、温度计、湿度计、体温计、电容测量仪,以及其它掌上型LCD 产品,尤其是电池供电的系统。
上传时间: 2013-11-13
上传用户:assef
基于HT45R37V的低功耗C/R-F型八位OTP单片机 HT45R37V 是一款低功耗C/R-F 型具有8 位高性能精简指令集的单片机,专门为需要VFD 功能的产品而设计。作为一款C/R-F 型的单片机,它可以连接9 个外部电容型或电阻型传感器,并把它们的电容值或电阻值转换成相应的频率进行处理。此外,单片机带有内部A/D 转换器,能够直接与模拟信号相连接,且它还集成了一个双通道的脉冲宽度调节器,用于控制外部的马达和LED 灯等。这款单片机是专门为VFD 产品应用而设计的,它能直接驱动VFD 面板。
上传时间: 2013-10-16
上传用户:packlj
基于HT45R37的低功耗C/R-F型八位OTP单片机 HT45R37 是一款低功耗C/R-F 型具有8 位高性能精简指令集的单片机。作为一款C/R-F 型的单片机,它可以连接16 个外部电容/电阻式传感器,并把它们的电容值或电阻值转换成相应的频率进行处理。此外,单片机带有内部A/D 转换器,能够直接与模拟信号相连接,且它还集成了双通道的脉冲宽度调节器,用于控制外部的马达和LED 灯等。
上传时间: 2013-11-23
上传用户:chenlong
HT45R35VC/R-F型八位OTP单片机 HT45R35V 是一款C/R-F 型具有8 位高性能精简指令集的单片机,专门为需要VFD 功能的产品而设计。 秉承HOLTEK MCU 一般特性,该单片机带有暂停和唤醒功能,振荡器选项等等,这些都保证使用者的应用只需极少的外部元器件便可实现。这款单片机专门为直接与VFD 面板相连的VFD 应用而设计。集成C/R-F 功能,外加功耗低、性能良好、I/O 使用灵活、成本低等优势,使这款单片机可以广泛应用于VFD 相关产品中,例如家电定时产品,各种消费产品,子系统控制器,其他家电应用等方面。
上传时间: 2013-11-07
上传用户:semi1981
The MAX3243E device consists of three line drivers, five line receivers, and a dual charge-pump circuit with±15-kV ESD (HBM and IEC61000-4-2, Air-Gap Discharge) and ±8-kV ESD (IEC61000-4-2, Contact Discharge)protection on serial-port connection pins. The device meets the requirements of TIA/EIA-232-F and provides theelectrical interface between an asynchronous communication controller and the serial-port connector. Thiscombination of drivers and receivers matches that needed for the typical serial port used in an IBM PC/AT, orcompatible. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-Vsupply. In addition, the device includes an always-active noninverting output (ROUT2B), which allowsapplications using the ring indicator to transmit data while the device is powered down. The device operates atdata signaling rates up to 250 kbit/s and a maximum of 30-V/ms driver output slew rate.
标签: MULTICHANNEL 5.5 TO RS
上传时间: 2013-10-19
上传用户:ddddddd
SPMC75F2413A在三相交流感应电机的开环V/F控制的应用:系统输入电源电压为AC110V/AC220V,经全波整流后供系统使用。系统使用Sunplus公司的SPMC75F2413A产生AC三相异步电机的VVVF控制所需的SPWM信号,并完成系统控制。使用三菱公司的智能功率模块PS21865实现电机的功率驱动。在AC220V输入时,系统最大能驱动1.5KW的负载。系统的变频区间为2Hz~200Hz。
上传时间: 2013-11-06
上传用户:924484786
This application note covers the design considerations of a system using the performance features of the LogiCORE™ IP Advanced eXtensible Interface (AXI) Interconnect core. The design focuses on high system throughput through the AXI Interconnect core with F MAX and area optimizations in certain portions of the design. The design uses five AXI video direct memory access (VDMA) engines to simultaneously move 10 streams (five transmit video streams and five receive video streams), each in 1920 x 1080p format, 60 Hz refresh rate, and up to 32 data bits per pixel. Each VDMA is driven from a video test pattern generator (TPG) with a video timing controller (VTC) block to set up the necessary video timing signals. Data read by each AXI VDMA is sent to a common on-screen display (OSD) core capable of multiplexing or overlaying multiple video streams to a single output video stream. The output of the OSD core drives the DVI video display interface on the board. Performance monitor blocks are added to capture performance data. All 10 video streams moved by the AXI VDMA blocks are buffered through a shared DDR3 SDRAM memory and are controlled by a MicroBlaze™ processor. The reference system is targeted for the Virtex-6 XC6VLX240TFF1156-1 FPGA on the Xilinx® ML605 Rev D evaluation board
上传时间: 2013-11-14
上传用户:fdmpy
The Linux Programming Interface - A Linux and UNIX System
标签: Programming Linux Interface Handbook
上传时间: 2013-11-10
上传用户:asdstation
PS2 PS3 Style Gampad Interface
标签: Interface Gampad Style PS2
上传时间: 2014-01-12
上传用户:unmwq