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Infrared-mouse
用普通遥控器做的电脑鼠标，遥控器发送数据，51单片机解码，通过串口发送到上位机上，在上位机上运行程序，实现鼠标控制(Do with an ordinary remote control computer mouse, the remote control to send data, 51 single-chip decoder, sent through the serial port to the PC, run the program on the host computer, mouse control)
- 2012-06-01 08:55:26下载
- 积分：1
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ASP.NET
C#课程源码，配套孙士保（电子工业出版社2012），很详细，很实用(C# program source code, supporting SUN Shi-bao (Electronic Industry Publishing House 2012), very detailed, very practical)
- 2013-12-16 10:04:51下载
- 积分：1
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SServer
说明： 这个demo是一个twain协议实现的demo(This demo is a demo implemented by Twain protocol)
- 2020-06-19 22:00:01下载
- 积分：1
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DSP点亮LED灯
DSP点亮LED灯 一个完整的工程项目 适用于TI系列C66X系列DSP
- 2022-04-01 16:52:30下载
- 积分：1
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新建
MCP4725实现的i2c驱动程序，通过DA转换实现函数发生器(MCP4725 come ture i2c drive program,Through da conversion function generator in English)
- 2017-06-18 10:42:07下载
- 积分：1
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Si4730
说明： Si4730收音机基于STM32F103，通过按键和LCD7565屏自动搜台和手动搜台(The Si4730 radio is based on STM32F103. It searches the platform automatically and manually by keys and LCD7565 screen.)
- 2019-06-29 14:45:02下载
- 积分：1
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computer
一个小型计算机，随机产生两个数，要你输入结果，最后告诉你对错(A small computer randomly generates two numbers, should you enter the results, and finally tell you right from wrong)
- 2011-05-20 16:58:28下载
- 积分：1
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c#表单设计器
一个简单表单设计器，呆以拖拽控件实现界面的设计。
- 2023-08-30 12:30:04下载
- 积分：1
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TSP
遗传算法解决TSP旅行商问题（可计算30个城市），用Visual C++编写，希望对大家有所帮助。(Genetic algorithm to solve TSP traveling salesman problem (calculate 30 cities), written in Visual C++, we want to help.)
- 2020-10-28 14:00:00下载
- 积分：1
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【19】DMA PWM WS2812 GPIO输出16组
STM32作为主控芯片，72Mhz，利用DMA+PWM实现驱动WS2812，创建16个并行800kBit / s数据流的想法如下：
使用定时器每1.25us创建一个800kHz的时基和一个DMA请求。
使用2个比较模块在低位时间（350ns）和高位时间（700ns）下创建DMA请求
1.25us DMA请求将GPIO端口的所有位设置为高电平
350ns DMA请求将数据从帧缓冲区传输到GPIO端口。如果该位为0，GPIO引脚将变为低电平，否则将保持高电平。
700ns DMA请求将所有GPIO引脚设置为低电平。
重复步骤1到3，直到发送所有位。
这产生脉冲周期为1.25us，脉冲宽度为350ns或700ns的脉冲流，具体取决于脉冲表示的位值，通过DMA将数据传输到GPIO端口意味着每16个LED每位需要一个字（两个字节）。每个LED 24位，每16个LED 24个字（48个字节）。(The idea to create 16 parallel 800kBit/s data streams is the following:
Use a Timer to create an 800kHz time base and a DMA request every 1.25us.
Use 2 compare modules to create DMA requests at the low bit time (350ns) and the high bit time (700ns)
The 1.25us DMA request sets all bits of the GPIO port high
The 350ns DMA request transfers the data from the frame buffer to the GPIO port. If the bit is a 0, the GPIO pin will go low, otherwise it will stay high.
The 700ns DMA request sets all GPIO pins low.
Repeat steps 1 to 3 until all bits have been transmitted.
This creates a stream of pulses with a pulse period of 1.25us and a pulse width of either 350ns or 700ns depending on the bit value the pulse represents.
Transferring the data via DMA to the GPIO port means that per 16 LEDs one half word (two bytes) is needed per bit. At 24 bits per LED that makes 24 half words (48 bytes) per 16 LEDs.)
- 2020-12-15 10:49:13下载
- 积分：1
