[嵌入式/单片机/硬件编程] 19 校赛_信号端 两路DAC DMA
采用stm32自带的DMA +DAC+TIMER来实现正弦波、三角波、方波、锯齿波的生成、频率可调
DMA \DAC\ timer of STM32 is used to generate sine wave, triangular wave, square wave and sawtooth wave, and the frequency can be adjusted (2020-09-24, C/C++, 5419KB, 下载10次)
[嵌入式/单片机/硬件编程] 8051用C51读写ATT7053程序
（1） 该程序中液晶显示可以实现电压频率，P，Q，S的电能指示，U与I1的夹角，U与I2的夹角
（2） 该程序中液晶显示可以实现电压通道有效值，电流通道1有效值，电流通道2有效值，两路有功功率，无功功率指示，但是这些参数需要配合上位机软件进行系数校正。
（3） 该程序可以实现对两路电流通道的计量精度进行分别校正。在校正的同时保存校表参数到EEPROM，使得样表在重新上电后可以从EEPROM中直接读取校正参数和寄存器配置参数。
（4） 该样表程序可以实现对ATT7053内任意寄存器的读写。
（5） 提供了一份单独ATT7035_SPI的操作软件，使用的是I/O口模拟的方式。
(1) In this program, the LCD can realize the indication of voltage, frequency, P, Q, s, the angle between u and I1, and the angle between u and I2
(2) In this program, LCD can display the RMS of voltage channel, effective value of current channel 1, RMS of current channel 2, two channels of active power and reactive power indication, but these parameters need to be corrected with upper computer software.
(3) The program can be used to correct the measurement accuracy of the two current channels separately. At the same time, the calibration parameters are saved to EEPROM, so that the calibration parameters and register configuration parameters can be read directly from EEPROM after the sample table is powered on again.
(4) The sample table program can read and write any register in att7053.
(5) A separate att7035 is provided_ SPI operation software, using I / O port simulation. (2020-07-06, C/C++, 381KB, 下载2次)
[嵌入式/单片机/硬件编程] 数字钟
设计一个数字钟，具有以下功能：
（1）计时功能：6个数码管显示时、分、秒。
（2）校时功能：在电子钟停止运行状态下，能够修改时、分、秒的值。
（3）能使电子钟复位（清零），能启动和停止电子钟的运行。
Design a digital clock with the following functions:
(1) Timing function: 6 digital tube display hour, minute, second.
(2) Time calibration function: when the electronic clock stops running, the value of hour, minute and second can be modified.
(3) It can reset the electronic clock (reset), start and stop the operation of the electronic clock. (2020-07-03, Multisim, 323KB, 下载2次)
[嵌入式/单片机/硬件编程] 校电赛byWZJ
基于stm32单片机，应用卡尔曼滤波PID算法，通过控制风力大小改变帆板偏转角度
Automation application (2017-06-23, C/C++, 9409KB, 下载13次)
[嵌入式/单片机/硬件编程] C8051F(EC5.FLASH-HEX)
新华龙C8051F(EC5调试.FLASH-HEX程序下载和KEIL驱动)全套资料，一包在手，应用无忧。
New Hualong C8051F (EC5 debugging. FLASH-HEX download and KEIL drive) full set of information, a packet in hand, application of mind. (2011-05-09, Visual C++, 8447KB, 下载438次)
[嵌入式/单片机/硬件编程] jianyi.pinlvji
此为简易的频率计，可测10hz到1Mhz的频率，通过整形电路测方波，三角波，正弦波，还具有自校功能，也可测周期，这个为自己做的仪器原理的课程设计，里面包含程序及设计报告。可方便大家的使用。测量误差《0.1
This is a simple frequency counter can measure the frequency of 10hz to 1Mhz, measured by square-wave shaping circuit, triangle wave, sine wave, also has self-calibration function can also test cycle, the equipment to do this for their own principles of curriculum design, which report contains the procedures and design. We can easily use. Measurement error, " 0.1 (2010-07-14, Asm, 119KB, 下载75次)
[嵌入式/单片机/硬件编程] PROJECT
具有“秒”、“分”、“时”计时功能，小时按24小时制计时。
具有校时功能，能够对“分”和“小时”进行调整。
具有整点报时功能。在59分51秒、53秒、55秒、57秒发出低音512Hz信号，在59分59秒时发出一次高音1024Hz信号，音响持续1秒钟，在1024Hz音响结束时刻为整点。
With "seconds", "minutes", "hour" timing function, hours at a 24-hour clock time. When a school function, be able to "minutes" and "hours" to adjust.With the whole point timekeeping function. In 59 minutes and 51 seconds, 53 seconds, 55 seconds, 57 seconds sent the bass 512Hz signal, in 59 minutes and 59 seconds to issue a Treble 1024Hz signal, Sound for 1 second, at 1024Hz audio end of the time for the whole point. (2010-01-25, VHDL, 330KB, 下载7次)
[嵌入式/单片机/硬件编程] TnHmonitor
51单片机实现的温湿度采集监控，日历时钟，12864显示，包括调时，温湿度超标报警
开发环境：keil
MCU 51 of the temperature and humidity monitor collected, calendar clock, 12864 show, including the transfer, the temperature and humidity alarm standard development environment: keil (2009-05-14, C/C++, 84KB, 下载279次)
[嵌入式/单片机/硬件编程] EETC_amplifier_all_02
用运算放大器做正弦波振荡器在学校时老师就教过，应该是一个常用的电路。现在我做了几款，实际效果都
不理想。哪位做过，可否透露些经验或成功的电路？
Operational amplifier with sinusoidal oscillator do teachers teach in schools that should be a commonly used circuit. Now I have done a few, the actual results are far from satisfactory. Which done, tell us more experience or success of the circuit? (2008-09-18, Others, 693KB, 下载3次)
[嵌入式/单片机/硬件编程] FreeBSD.6.x
本書將帶領讀者從基本的系統使用、網路伺服器架設、到深入系統管理所需的知識，並將筆者在管理公司及學校伺服器的經驗和讀者分享，期望對有心學習 FreeBSD 的使用者有所助益。
this book will lead the reader from the basic system, network servers erected, of the system required for the management of in-depth knowledge, and the author of the management company and the school's server to share experiences and the readers, hope to those who wish to learn FreeBSD users benefit. (2007-03-08, Unix_Linux, 4334KB, 下载5次)
[嵌入式/单片机/硬件编程] embededsystem(americanschoolteachingmaterials
美国名校嵌入式课程讲义，很好的入门的教程，不过是英文的，可能有些人觉得不太方便，不过的确讲的很好，配合金山词霸细细看，效果很不错的
American elite courses handouts, a good introductory tutorial, but is in English, some may think that's not very convenient, but did say very good, with Kingsoft fine, the effect is pretty good (2007-01-17, PPT, 943KB, 下载16次)