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2FSK-digital-communication-system
这是一份设计报告,内容为2FSK的数字通信系统,里面有仿真图和电路图(This is a designing report about 2FSK digital communication system)
- 2015-01-31 14:07:08下载
- 积分:1
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PWM
PWM调光
1、学习目的:利用定时器产生PWM,了解原理和使用方法
2、硬件要求:LED灯 定时器
3、试验现象:LED灯由亮到灭,由灭到亮逐步变化,也就是调光现象(PWM dimming, learning objectives: the use of the timer to generate PWM understand the principles and use hardware requirements: LED lamp timer test phenomenon: LED lights from bright to off, gradually changes from off to bright, that is, adjusted optical phenomena)
- 2013-03-23 20:18:42下载
- 积分:1
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000
51单片机模拟一个USB键盘的代码,c语言编写的(51 USB keyboard microcontroller code that simulates a, c languages)
- 2010-12-14 19:25:58下载
- 积分:1
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dianji
超再生遥控-遥控步进电机正反转AB的程序(Superregeneration Remote- remote control stepper motor program AB)
- 2013-07-23 20:00:21下载
- 积分:1
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VBvollage
高精度电压表(24bit) VB源程序,简单修改可实现多量程(precision voltage (24bit) VB program, a simple change can be realized more range)
- 2021-02-08 15:29:54下载
- 积分:1
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MAX7219_DAC_Serial
AD转换芯片源程序。串行模式通信。。带电路(AD conversion chip source. Serial mode of communication. . Band circuit)
- 2008-12-15 18:08:26下载
- 积分:1
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SHAL_KEIL
通过单片机实现哈希函数SHA-1,C源程序完全可用,已经测试,外部加密芯片采用DS28E01-100(MCU hash function SHA-1, C source code fully available, and has been tested external encryption chip uses DS28E01-100)
- 2020-11-10 09:39:45下载
- 积分:1
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dianzisuo
电子密码锁设计,实现四位密码开锁,可改密码(Electronic password lock design to achieve four bit password lock, password can be changed)
- 2017-04-18 11:56:18下载
- 积分:1
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SPI-429-249
用于步进电机细分驱动,MSP430F149配置TMC429,进而驱动TMC249,细分驱动(Subdivision driver for stepper motor, MSP430F149 configuration TMC429 turn drives TMC249 Subdivision Driver)
- 2013-04-02 21:32:20下载
- 积分:1
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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