key_irq

说明：  基于51单片机的按键例程，常见问题： 1. 按键无反应 请您确认程序是否下载成功，连线正确无误，确认无误后还是无效果的话，将排线重新插拔下，单片机拿下来重新安装，重启开发板试试！(Key routines based on 51 single chip microcomputer,common problems: 1. Press the key and no response. Please confirm whether the program was downloaded successfully and the connection is correct. If it is still ineffective after confirmation, plug and unplug the cable again, take down the MCU and reinstall it. Restart the development board to try!)

在stm32平台上实现读取ADXL345的三轴加速度的数据(On the STM32 platform, read the data of the three axis acceleration of ADXL345)

stm32f407 SPI+DMA通信，测试稳定(Stm32f407 SPI+DMA communication)

小护士脉搏监护仪全套系统，包括程序，电路图，波形，参考资料等，还有和PC的matlab通信部分，一应俱全。(Small nurses monitor the pulse of a full set of systems, including procedures, circuit diagrams, waveform, reference materials, as well as and the PC part of matlab communication services.)

freescale hc12_C32 例程(Freescale hc12_C32 routines)

级联型H桥电路拓扑电路的脉冲调制方式，可应用于静止型无功补偿装置等。(PWM tiao zhi, used to the STATCOM)

HX8257 LCD driver on LPC Cortex-M3

at45db_for_msp430.c,IAR2.31调试(at45db_for_msp430.c, IAR2.31 Debugging)

仿真程序数控机床，数控机床，以模仿实际操作，有有一定的价值，很多共享！,可以直接使用。 (Simulation program CNC machine tools, CNC machine tools, to mimic the actual operation, the value of many shared Can be used directly.)

基于STM32的用ADNS3080测量水平移动距离(Use a ADNS3080 measure horizontal moving distance)