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PWM-ULN2003A
利用ULN2003A进行驱动,产生PWM波,里边有照片,可供参考,通过本例程了解PWM 的基本原理和使用 (#include <reg52.h>
unsigned char timer1
sbit PWM=P1^2
void system_Ini()
{
TMOD|= 0x11
//PWM
TH1 = 0xfe //11.0592
TL1 = 0x33
TR1 = 1
IE =0x8A
}
main()
{
system_Ini()
while(1)
{ if(timer1>100) timer1=0
if(timer1<30) PWM=0
else PWM=1
}
)
- 2013-11-21 15:17:25下载
- 积分:1
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jinl
学4年来做过的竞赛以及老师的科研项目所积累下来的c51源代码,一共有40(4 years of study done as well as the Teacher of the competition accumulated research c51 source code, a total of 40)
- 2009-04-03 14:08:38下载
- 积分:1
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xycms
企业网站包括企业中心 新闻中心 产品展示 人才招聘 会员中心 在线留言等(Business center corporate website including News Products Jobs Member Feedback, etc.)
- 2011-06-22 14:07:50下载
- 积分:1
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codejock-13.0.0-by-registred-by-sanlegas
codejock 13 and activasi
- 2014-01-07 13:21:51下载
- 积分:1
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shangweiji
温度传感器,基于51的温度传感器!献给予51的爱好者们!(Temperature sensor, temperature sensor based on 51! Offered to give 51 fans!)
- 2010-07-17 20:48:55下载
- 积分:1
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vbplc
说明: vb与plc通讯帮助解决vb与plc通讯之间的问题(vb and Communications plc)
- 2010-04-21 01:44:57下载
- 积分:1
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sentence
文字或句子自動隨機排列.可以有助各位溫習功課和考試(Automatic random words or sentences arranged)
- 2010-06-09 02:53:19下载
- 积分:1
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MYeclock
实现stc12c5a60s2单片机电子时钟的时,分,秒等基本功能。(Stc12c5a60s2 achieve single-chip electronic clock hours, minutes, seconds, and other basic functions)
- 2013-08-03 21:01:26下载
- 积分:1
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phpMyAdmin(MySQL)Violent-attack
这个工具是一个利用phpmyadmin来破解mysql数据库密码的工具。
可以是字典或是暴力破解都可以。
mysql数据库用户名可自定义(This tool is a use of phpMyAdmin to crack MySQL password tool.
It can be either a dictionary or a brute force.
Mysql user name can be customized)
- 2016-05-07 12:34:38下载
- 积分:1
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SQLDatabaseImage
ASP+vb读取数据库图像并处理,下载做为参考。(ASP+vb read the database and image processing, downloaded as a reference.)
- 2013-07-11 07:57:37下载
- 积分:1