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BLDC-ECET
电动工具无刷电机控制解决方案,基于单片机控制的无刷电机驱动,可立即启停,高性能,低耗能,锂电池充电。(Electric tools brushless motor control solutions, brushless motor driver based on single chip microcomputer control, can immediately stop, high performance, low energy, lithium battery.)
- 2020-08-15 22:28:26下载
- 积分:1
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DCsimulat
pscad的主流仿真 建立了主流输电系统 网络电压380V 频率50Hz(the simulation of DC power system based on pscad)
- 2012-10-16 16:38:59下载
- 积分:1
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TransportCompany
It maintains the information about the vehicle installed in a transport company with sufficient detail of vehicle?s owner, contact no. and Insurance detail and all the available transport sevices provided by the company.
- 2015-02-28 23:16:53下载
- 积分:1
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UCOS_51COM
很不错的 uC/OS2 51单片机串口通讯(uC/OS2 51 microcontroller serial communications)
- 2013-05-27 10:29:41下载
- 积分:1
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SHUMAGUANDONGTAISAOMIAOYANSHI
5-数码管动态扫描演示,能实现数码管自动的动态扫描,希望对各位有用处(5- digital dynamic scanning demonstration, to achieve a dynamic digital auto scan, you want to be useful)
- 2011-06-09 18:54:51下载
- 积分:1
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Chinese-version-of-VB6-Programmer
本材料是Visual Basic 6.0 中文版程序员指南,有兴趣的可以下载看看(This material is the Chinese version of Visual Basic 6.0 Programmer' s Guide, are interested can download to see)
- 2014-04-23 23:19:03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
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V8
说明: 学习ARM,开发ARM的必备工具J-LINK V8原理图(Learning ARM, ARM developed an essential tool J-LINK V8 schematic)
- 2011-07-18 18:38:44下载
- 积分:1
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UCOS
嵌入式单片机开发,stm32系统移植,实现计算功能(Embedded microcontroller development, stm32 transplant system, to achieve computing capabilities)
- 2014-10-10 16:57:01下载
- 积分:1
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LLC闭环程序
说明: LLC电路的PI闭环程序,实现电流闭环,非常稳定经过实测,没有问题(The PI closed-loop program of LLC circuit realizes the current closed-loop, which is very stable. After actual measurement, there is no problem)
- 2020-03-10 00:55:28下载
- 积分:1