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RC522-SPI
RC522 SPI接口的51单片机程序例程(RC522 SPI)
- 2014-02-13 01:17:27下载
- 积分：1
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Responder
用51单片机写的抢答器，由于每个人的开发板不同，因此如果需要参考，请仔细研究IO口.
PS:学校的破板子(51 microcontroller with written Responder, because each person s development board, so if you need a reference, please examine the IO port)
- 2015-04-02 08:46:58下载
- 积分：1
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DragonFly
说明： 四轴的简单原理图，包括Wifi模块，电源模块，通信模块等(simplified scheme layout of a four-wing drone)
- 2020-03-27 10:40:17下载
- 积分：1
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MCU_Digital_Clock
说明： <基于单片机的数字钟设计>
个人做的毕业设计,带Protel图,源代码用proteus软件仿真通过,附有毕设论文(<Based on single-chip digital clock design> individuals do graduate design, with Protel map, the source code through the use of Proteus software simulation, complete with paper-based)
- 2008-12-05 21:26:31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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CAN
基于 瑞萨 RL78系列 R5F10DPJJ的 CAN总线通信例程，
包括 CAN初始化，报文接收和 发送(CAN bus routines, based on Renesas RL78 series R5F10DPJJ)
- 2018-08-04 14:22:28下载
- 积分：1
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台灯1
智能台灯系统，实现了语音播报，自动调光，远程控制，灯光切换等智能系统功能。克服了传统台灯供电方式单一等多种特点。本系统主要由单片机控制系统和硬件系统组成，主要由STM32F407微处理器、触控液晶彩屏、ADC电压监控、超声波测距监测、音乐播放系统、灯光控制组件和多路系统电源构成。智能学习台灯采用PWM数字调光和超声波测距技术以及人体红外感应技术，实现灯光亮度和模式调节。(Intelligent desk lamp system realizes the functions of voice broadcasting, automatic dimming, remote control, light switching and other intelligent systems. It overcomes many characteristics such as single power supply mode of traditional lamp. This system is mainly composed of single chip computer control system and hardware system. It is mainly composed of STM32F407 microprocessor, touch LCD color screen, ADC voltage monitoring, ultrasonic ranging monitoring, music playing system, light control module and power supply of multi-channel system. Intelligent learning desk lamp uses PWM digital dimming and ultrasonic ranging technology as well as human infrared sensing technology to achieve light brightness and mode adjustment.)
- 2019-03-25 13:49:40下载
- 积分：1
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PM
说明： 该文档主要介绍了电视专用芯片TSUMV59中电源管理的方法(The document describes a television special chip power management methods TSUMV59)
- 2015-09-22 16:06:04下载
- 积分：1
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TVcode
一个TV编码器的简单源码,对于初学者来说应该很有帮助(a simple tv code,it is very helpful to new student)
- 2015-02-16 15:06:29下载
- 积分：1
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FAT32
关于FAT32文件系统的相关资料，帮助你调试SD卡。(FAT32 file system on the relevant information to help you debug SD card.)
- 2011-02-06 22:10:53下载
- 积分：1
