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chuankoutongxin
通过51单片机实现串口通信，并在外接LED显示器上显示。(51 microcontroller via serial communications, and displayed on an external LED display.)
- 2015-09-14 15:21:33下载
- 积分：1
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STM8L
IAR开发环境，STM8L单片机，Att7053计量芯片，此仪表程序可以显示电压电流频率(IAR development environment, STM8L SCM, Att7053 measurement chip, the instrument can display the voltage and current frequency of program)
- 2011-04-21 08:31:31下载
- 积分：1
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cheng
滤波器广泛应用于数字信号处理、通信、自动控制领域,但设计可变宽频带有源滤波器则比较困难。利用单片机控制参数可编程的双二阶通用开关电容有源滤波器,精确设置有源滤波器的中心频率f，品质因数Q及有源滤波器的工作方式。本系统主要分为两个部分:即程控滤波器和程控放大器。程控放大器电压增益为40dB，通过单片机控制DA进行分压，可精确实现要求的10dB步进，误差小于0.5 ，通带为100Hz-500KHz，输入电压峰－峰值范围为10mV，在输入范围内无明显失真。由MAX264为核心的滤波器，可设置为高通、低通滤波器。通过单片机直接给出控制频率，使-3dB截止频率在1KHz-20KHz内可调，步进1KHz，误差小于1 。整个系统以52单片机为控制核心，电路简单，性能稳定，且具有较高精度，滤波参数调节通过单片机控制，较为方便。(Filters are widely used in digital signal processing, communications, automatic control area, but the design variable wideband active filter is more difficult. Control parameters using single-chip programmable universal switched-capacitor biquad active filter, active filter accurately set the center frequency f, quality factor Q and the active filter works. The system is mainly divided into two parts: the program-controlled filters and programmable amplifiers. Programmable amplifier voltage gain of 40dB, the DA through the partial pressure of single-chip control, can accurately achieve the required 10dB step, the error is less than 0.5 , passband to 100Hz-500KHz, input voltage peak- the range of 10mV, the input range no significant distortion. By the MAX264 as the core of filter can be set to high pass, low pass filter. Given directly by the microcontroller controls the frequency, the-3dB cutoff frequency at 1KHz-20KHz adjustable, step 1KHz, error is less than 1 . The entire system for)
- 2011-07-17 16:23:27下载
- 积分：1
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emWin
energy emwin驱动程序，可驱动彩屏及相关LCD控制器(energy emwin)
- 2013-04-22 18:21:35下载
- 积分：1
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adc--232
msp430f149 adc-rs232 数据传输(msp430f149 adc-rs232 data transfering)
- 2015-08-20 22:16:57下载
- 积分：1
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f410-PWM
利用定时器产生PWM，使LED灯由亮到灭，由灭到亮逐步变化(
Use timer produce PWM, make the light to destroy LED lamp, the gradual change to light out
)
- 2011-12-10 23:40:18下载
- 积分：1
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fer1
$regfile = M8DEF.dat internal crystal 8000000
Config Lcdpin = Pin , Db4 = Portc.1 , Db5 = Portc.2 , Db6 = Portc.3 , Db7 = _
Portc.4 , E = Portd.2 , Rs = Portd.3
Config Lcd = 16 * 2
Config Timer1 = Counter , Edge = Rising
Ddrb.1 = 0 : Portb.1 = 1 PULL UP RESISTOR ACTIVATED
Config Timer0 = Timer , Prescale = 1024
Enable Counter1
Enable Interrupts
Enable Timer0
Enable Timer1
On Ovf1 Pulsecount
On Ovf0 Ovf0occures
Dim A As Long , I As Long , B As Byte
B = 0
Cls
Start Timer0
Do
Loop
End end program
Ovf0occures:
Incr I
If I > 30 Then
Stop Timer0
Cls : Home
A = B * 65536
A = A + Counter1
Lcd FREQ IS : A HZ
B = 0
I = 0 : Counter1 = 0
Start Timer0
End If
Return
Pulsecount:
Incr B
Counter1 = 0
Return
- 2014-11-22 01:04:48下载
- 积分：1
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5-Beep
STM8S系列单单片机教程，第三课，教你从零开始学会使用蜂鸣器，让蜂鸣器唱歌吧(STM8S series single chip tutorial, the third lesson, teach you from scratch to learn to use the buzzer beeper to sing)
- 2013-03-02 15:30:46下载
- 积分：1
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LTE_UL_Sc
仿真过程中，将改进算法那与经典算法进行比较，通过对仿真数据如系统时延、系统丢包概率以及系统吞吐量的比较分析，评估改进算法的正确性和性能。(Simulation process, the improved algorithm that compares with the classical algorithm, through the simulation data system latency, packet loss probability of the system as well as a comparative analysis system throughput, improved assessment of the correctness and performance of the algorithm.)
- 2014-05-05 12:13:16下载
- 积分：1
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bujindianji
基于单片机MSP430的 步进电机控制 测距程序 (MSP430 microcontroller-based stepper motor control ranging program)
- 2014-04-19 16:02:47下载
- 积分：1
