I often need a simple function generator. Just to generate a certain frequency. After all the years I ve worked with electronics, I still haven t got me one. Even though I need it now and then, I just couldn t seem to justify the cost of one. So, standard solution - build one yourself. I designed a simple sinewave generator based on a Analog Devices AD9832 chip. It will generate a sinewave from 0.005 to 12 MHz in 0.005 Hz steps. That s pretty good, and definitely good enough for me ! But while waiting for the AD9832 chip to arrive, I came up with a very simple version of the DDS synth, using just the 2313 and a resistor network.
标签： frequency generator function generate
上传时间： 2013-12-17
上传用户：thesk123
The TMS320LF240xA and TMS320LC240xA devices, new members of the TMS320C24x generation of digital signal processor (DSP) controllers, are part of the TMS320C2000 platform of fixed-point DSPs. The 240xA devices offer the enhanced TMS320 DSP architectural design of the C2xx core CPU for low-cost, low-power, and high-performance processing capabilities. Several advanced peripherals, optimized for digital motor and motion control applications, have been integrated to provide a true single-chip DSP controller. While code-compatible with the existing C24x DSP controller devices, the 240xA offers increased processing performance (40 MIPS) and a higher level of peripheral integration. See the TMS320x240xA Device Summary section for device-specific features.
标签： TMS 320 generation 240
上传时间： 2013-12-16
上传用户：GavinNeko
The XC226x derivatives are high-performance members of the Infineon XC2000 Family of full-feature single-chip CMOS microcontrollers. These devices extend the functionality and performance of the C166 Family in terms of instructions (MAC unit), peripherals, and speed. They combine high CPU performance (up to 80 million instructions per second) with extended peripheral functionality and enhanced IO capabilities. Optimized peripherals can be adapted flexibly to meet the application requirements. These derivatives utilize clock generation via PLL and internal or external clock sources. Onchip memory modules include program Flash, program RAM, and data RAM.
标签： high-performance full-feature derivatives Infineon
上传时间： 2016-12-12
上传用户：wab1981
*** *** *** *** *** *** ***** ** Two wire/I2C Bus READ/WRITE Sample Routines of Microchip s ** 24Cxx / 85Cxx serial CMOS EEPROM interfacing to a ** PIC16C54 8-bit CMOS single chip microcomputer ** Revsied Version 2.0 (4/2/92). ** ** Part use = PIC16C54-XT/JW ** Note: 1) All timings are based on a reference crystal frequency of 2MHz ** which is equivalent to an instruction cycle time of 2 usec. ** 2) Address and literal values are read in octal unless otherwise ** specified.
标签： Microchip Routines Sample WRITE
上传时间： 2013-12-27
上传用户：ljmwh2000
Samsung S3C2440A SOC RISC Microprocessor test program that demonstrates how to code most peripherals on the chip.
标签： Microprocessor demonstrates peripherals S3C2440A
上传时间： 2013-12-20
上传用户：yulg
1、直到批号为0645的片子，chip erase指令还是不可靠的， 这在datasheet 52页有描述。 2、芯片的页大小寄存器只能写一次（OTP）， 如果配置为每页512字节后就再也不能写回每页528字节了。 3、网上很多例程是旧版的161B的程序，跟161D操作指令有不少差别， ATMEL已经不建议使用这些旧指令了， 移植的时候注意对照DATASHEET修改过来。 4、写入时一定要查询状态寄存器的忙碌标志， 否则后续指令无效，外部的RYD/BUSY#管脚反映的状态， 并不能作为写入的参考，当初就是在这个地方卡了3天时间。 5 部分函数做过测试,其余难免有错
标签： 0645
上传时间： 2017-02-10
上传用户：dbs012280
This software package contains the USB framework core developped by ATMEL, as well as a Mass storage driver. The MSD driver uses the internal flash of the chip to operate as a disk-on-key. The following files are included : - core/ -> Source code for the framework core -> Makefile for the core - msd/ -> Source code for the Mass Storage driver -> Makefile for the MSD driver - bin/ -> Compiled binaries for every supported chips - lib/ -> Lib v3 files for every supported chips - ./ -> Makefile for the framework -> Startup file
标签： developped framework software contains
上传时间： 2017-02-14
上传用户：003030
VoyagerGX display driver for Windows CE .NET 5.XX Silicon Motion, Inc. VoyagerGX Driver is architected from the beginning to support variety of features and extension of Windows CE .NET, such as DirectDraw feature, Dynamic Rotation feature, Multimon feature, SMI Multimon Emulation feature (using single VoyagerGX chip to drive two independent displays), WCEfA (Windows CE for Automotive) feature, and more
标签： VoyagerGX architec Silicon display
上传时间： 2013-12-31
上传用户：远远ssad
单片微型计算机是微型计算机发展中的一个重要分支，是把构成一台微型计算机的主要部件如中央处理器(CPU)、存储器(RAM/ROM)和各种功能I/O接口集成在一块芯片上的单芯片微型计算机(Single chip Micro Computer),简称单片机.由于它的结构与指令功能都是按工业控制要求设计的,且近年来单片机着力扩展了各种控制功能如A/D、PWM等,因此我们更多时候称其为一个单片形态的微控制器(Single chip Micro Controller),或直接称其为微控制器(Micro Controller)。
上传时间： 2014-01-18
上传用户：zhaoq123
The concept of the Altera Nios II embedded processor implementation inside Field Programmable Gate Array [FPGA] of the CCD camera for the “Pi of the Sky” experiment is presented. The digital board of the CCD camera, its most important components, current implementation of firmware [VHDL] inside the FPGA and the role of external 8051 microcontroller is briefly described. The main goal of the presented work is to get rid of the external microcontroller and to design new system with Nios II processor built inside FPGA chip. Constraints for implementing the design into the existing camera boards are discussed. New possibilities offered by a larger FPGA for next generation of cameras are considered.
标签： implementation Programmable processor embedded
上传时间： 2014-01-02
上传用户：dyctj
