-
suanfa
打孔机主要用于在制造印刷线路板流程中的打孔作业。本问题旨在提高某类打孔机的生产效能。
打孔机的生产效能主要取决于以下几方面：（1）单个过孔的钻孔作业时间，这是由生(this is a new suan fa ofaa)
- 2012-08-25 16:18:21下载
- 积分：1
-
USART-RS232
这是基于STM32的USART转232的应用程序(This is based on the STM32 USART 232 applications)
- 2016-04-18 14:53:57下载
- 积分：1
-
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
-
IEC103
非常全的103编程资料，以及C语言的103头文件定义代码，非常适合正在开发103通讯规约的朋友(103 very full program information, as well as 103 files define the C language code is very suitable communication protocol being developed 103 friends)
- 2021-04-22 09:58:49下载
- 积分：1
-
XX-DHT11
DHT11的C51驱动程序，4位数码管可以显示温度和湿度，带一触发按键(DHT11 C51 driver, four digital tube can display temperature and humidity, with a trigger button)
- 2013-11-27 14:14:59下载
- 积分：1
-
shangweiji
上位机，与51单片机进行通信，将从单片机发送过来获得的信息显示在显示界面上。(PC, with 51 single-chip communication, sent from the information obtained from the microcontroller is displayed on the display screen.)
- 2014-02-18 15:30:11下载
- 积分：1
-
MCG
MC9S12DZ60时钟初始化程序, C语言, code warrior 软件(initial program of MCG, C language，code warrior software)
- 2012-01-02 18:01:07下载
- 积分：1
-
STM32_IMU_OLED
使用STM32F103C8T6处理器和OLED显示屏，传感器为IMU AHRS ，实现了串口通信读取数据，并可以使用桌面调试软件读取串口数据。(stm32f103c2t6,oled,imu ahrs)
- 2015-07-26 20:10:28下载
- 积分：1
-
hx711
基于STM32f103控制HX711和LCD实现的电子秤，软件已调试成功，称重比较准确(Based STM32f103 control the HX711 and LCD electronic scale implementation, the software has debugging success, weighing more accurate)
- 2021-04-26 02:18:46下载
- 积分：1
-
elevatorsimulation
C++电梯模拟程序，同过仿真的方式在控制台下测试其电梯程序的准确性(elevator simulation)
- 2021-04-22 15:08:48下载
- 积分：1
