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简易秒表，用stc89c52主控制，数码管显示(Simple stopwatch with stc89c52 master control, digital tube display)

STM32F103RCT6的入门编程程序(An introductory programming program for STM32F103RCT6)

12864液晶8051的C语言初始化程序(12864 8051 C language initialization procedure)

ARM Cortex-A8 裸板，定时器4 和定时器0的测试程序(ARM Cortex-A8 bare boards, Timer 4 and Timer 0 testing procedures)

用8051单片机来驱动的2.0吋TFT屏（S6D0118的IC）(use 8051 to drive the 2.0-inch TFT screen (S6D0118 IC))

PowerPCB/PADS封装库，原版安装后没有的，有常见的SO、SOIC、TSSOP等格式，省去自己画封装的麻烦(PowerPCB/PADS package library, after the original installation, and have common SO, SOIC, TSSOP and other formats, saved themselves the trouble of packaging draw)

AT89S51demo代码，方便快速开发(AT89S51demo Code, Convenient and Rapid Development)

说明：  oled-iic通信通用代码，只需改.h里的修改部分即可使用。(The general code of oled-iic communication can be used only by modifying the modified part in. H.)

说明：  STM32读取GPS信息并跟踪并短信发送到目标手机(STM32 reads GPS information and tracks it and sends it to the target cell phone by short message)

说明：  基于stm32f103单片机的程序， 通过中断控制灯，点亮一盏灯(Based on the program of STM32F103 MCU, a lamp is lit by interrupting the control lamp.)