16x64点阵,基于51单片机16x64点阵设计报告。
上传时间: 2014-12-26
上传用户:四只眼
MSC-51单片机(有史以来,最简单易懂教程).pdf
上传时间: 2014-12-26
上传用户:ssj927211
avr
上传时间: 2014-08-08
上传用户:不懂夜的黑
学习单片机的好资料
标签: 单片机
上传时间: 2014-08-12
上传用户:古谷仁美
0001、PC 机与单片机通信(RS232 协议).rar
上传时间: 2014-10-31
上传用户:牛布牛
将写好的程序烧录进单片机
上传时间: 2014-12-26
上传用户:胡萝卜酱
第一章 概述 第二章 微型测控系统常用器件 第三章 工业控制计算技术要点 第四章 单片机存储系统扩展 第五章 标准总线和串行通信 第六章微型机应用系统常用可编程接口芯片 ............................
上传时间: 2014-01-09
上传用户:dbs012280
为了解决磁放大器性能测试过程中,需要对其供给不同数值恒定电流的问题,设计了一种基于DAC7512和单片机的数控恒流源系统。该系统采用AT89C51作为主控器件,将计算机发送的电流控制字命令转换为D/A转换器控制字,通过模拟SPI通信接口,写D/A控制字到DAC7512,从而控制其输出相应数字电压值,经差动缩放电路、电压/电路变换电路和功率驱动电路,最后输出恒定电流。实验结果表明,恒流源输出电流调节范围为-45~+45 mA、精度为±0.1 mA,分辨率达0.024 4 mA,具有应用灵活,外围电路简单,可靠性高的特点。该数控直流恒流源也可为相关产品的测试系统研发提供参考。 Abstract: In order to solve the need to supply different values constant current for the magnetic amplifier in testing process, numerical control constant current source system was designed based on DAC7512 chip and microcontroller technology. The system used the AT89C51 as the main chip, which can convert the current control word from computer into to D/A control words. And the system wrote D/A control word into the DAC7512 chip to control the output voltage value by the SPI communication interface, which can output corresponding constant current figures by scaling circuit, the V/I converter and power drive circuit. Experimental results show that the current source output current adjustment range is -45~+45mA, accuracy is ± 0.1mA, and resolution ratio is 0.024 4mA
上传时间: 2014-12-27
上传用户:invtnewer
AVR单片机及嵌入式系统--单片机原理及接口技术
上传时间: 2014-11-08
上传用户:yanyangtian
Safety GuidelinesThis manual contains notices which you should observe to ensure your own personal safety, as well as toprotect the product and connected equipment. These notices are highlighted in the manual by a warningtriangle and are marked as follows according to the level of danger:
标签: Programmable 300 and
上传时间: 2013-12-12
上传用户:fandeshun