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ECW_fourier_blink---cursor
eye controlled wheelchair using fourier transform
- 2016-01-31 20:48:05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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i2c_slave_V1.2
基于STM32的IIC通信，软件模拟IIC接口，从机代码(Based on STM32 IIC communication, the software simulates IIC interface and slave code)
- 2018-06-27 13:43:29下载
- 积分：1
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cc1100-wireless
基于MSP430的CC1100的无线温度采集系统的设计，方便大家学习交流！！！！！！！！(MSP430 design of CC1100 wireless temperature acquisition system based on exchange to facilitate learning! ! ! ! ! ! ! !)
- 2015-12-04 11:37:43下载
- 积分：1
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光强与温湿度检测（三个传感器）
基于秉火程序改写的传感器程序，可实现光照强度，温湿度测量(Based on the sensor program rewritten by Binghuo program, the measurement of light intensity, temperature and humidity can be realized.)
- 2020-06-23 12:40:01下载
- 积分：1
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1-（德飞莱）尼莫M3S-LED点亮和熄灭
说明： 德飞莱m3s开发板，stm32f103zet6，led灯的点亮和熄灭(Lighting and extinguishing of LED lamp)
- 2020-06-19 04:40:01下载
- 积分：1
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i30semoDEMO(GAS)
I30 gasoline instrument panel color LED backlight module
- 2013-08-23 07:42:15下载
- 积分：1
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WinRAR-ZIP
文件包含直流电机开环调速以及转速电流双闭环调速的matlab仿真模型。并且可以将两种调速进行比较。(Files contain open-loop DC motor speed and the speed of the current dual-loop speed control matlab simulation model. And both the governor can be compared.)
- 2013-11-28 21:19:30下载
- 积分：1
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ICA_EEMD
这是一个最新的EEMD处理单道ICA的问题的总结，有国外文章自带的源代码，简单好用。(Is a latest the EEMD processing single channel ICA problem the foreign article comes with source code, simple and easy to use.)
- 2013-03-05 16:02:18下载
- 积分：1
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DS12887pro
实时时钟芯片DS12887特点与应用源程序，用C语言编写。(DS12887 real time clock chip features and application source code, using C language.)
- 2010-07-17 07:10:04下载
- 积分：1
