yinyue

U-boot源码 ARM7启动代码，很好的ARM学习资料(ARM7-source U-boot startup code, good learning materials ARM)

用80c51单片机编写时钟控制程序，断电后丢失。适用于初学者(Write clock with 80c51 microcontroller control program, after power loss. For beginners)

ST7789S-G4A APPLICATION PACKAGE，包括AN和初始化代码，实现ST7789S驱动240RGB*320分辨率的TFT液晶驱动，2.4寸，2.8寸，3.2寸，对液晶行业设计工程师有很大帮助(ST7789S-G4A APPLICATION PACKAGE, including AN and initialization code to achieve ST7789S driver 240RGB* 320 resolution TFT LCD driver, 2.4 inch, 2.8 inch, 3.2 inch, LCD industry for design engineers are very helpful)

stm32硬件SPI方式控制ADS1247采样驱动程序(stm32 hardware SPI driver controls the ADS1247 sampling)

《无线通信系统仿真--C++实用模型》一书的配套源代码，里面包含了，通信系统的所有模块，对学习通信和C++有很好的借鉴()

stm32f103vet6.编程想实现ADC的DMA功能，并将采集到得数据通过DAC输出，在示波器上观察波形。经调试可用，Keil uVision4.(stm32f103vet6. Programming the DMA function to the ADC, and data was collected through the DAC output, observe the waveform on the oscilloscope. The debugging available, Keil uVision4.)

房间脉冲仿真，用于仿真房间的声音脉冲，对于研究声在环境的意义重大(Room pulse simulation, simulation room for the sound pulse, the significance for the study of acoustic environment in major)

说明：  在ST7282芯片上移植STemWin+ucos(Transplanting STemWin+ucos on ST7282 Chip)

本代码是基于检测遥控飞机手柄输出的PWM信号频率，转换为角度信息，再作为步进电机移动输入量，最终实现使用遥控飞机手柄摇杆精确控制步进电机转动角度的目的，包含PWM频率检测模块和步进电机驱动模块等。(This code is PWM frequency signal detection based on the output of the remote control aircraft converted to handle, angle information, and then as the stepper motor movement input, and ultimately use the remote control aircraft joystick handle precise control of stepper motor rotation angle, including PWM frequency detection module and stepper motor drive module.)

一篇关于步进电机的细分，驱动，加速，减速的文章。(An article on the breakdown of stepper motors, drives, speed up, slow down the article.)