key-polling

想要读取RC522数据，不想失败了，求解(CC2530 reads RC522 data)

sd卡 fat16文件系统 spi模式十分详细读写操作 (sd card spi fat16 file system model is very detailed literacy operation)

网上有许多关于DM9000网卡芯片的介绍，然而这些介绍大多是关于Linux或WinCE下的驱动程序或移植，很少有介绍单片机驱动DM9000的例子。本文详细介绍了调试DM9000E的过程，仅供参考。(There are many online card chip on the DM9000 introduction, however, most of these presentations are on Linux or WinCE driver or under the transplantation, very few examples of introduced Microprocessor DM9000. This paper describes the process of debugging DM9000E for reference purposes only.)

与SDK 6.0.0 以上版本配套的 s110 蓝牙协议栈代码.开发 nRF51822 必备.(The S110 SoftDevice is a Bluetooth ® low energy (BLE) Peripheral protocol stack solution. It integrates a low energy controller and host, and provides a full and flexible API for building Bluetooth low energy System on Chip (SoC) solutions.)

光电传感器大全，具有很高的参考和使用价值(Photoelectric sensor Daquan, reference and high value)

通过使用能。Keil 51工具和VC++来实现按键的功.(Achieved by using the Keil 51 tools and VC++ of the key functions.)

PIC红外测试程序，通过红外控制LED灯的亮灭。(PIC infrared testing procedures, through the infrared control LED light.)

stm32单片机全功能bootloader，包括SD，串口，网口，和USB。选择条件编译(stm32 SCM fully functional bootloader, including SD, serial port, Ethernet port, and USB. Select conditional compilation)

说明：  模数转换芯片ads1100 读写程序 已应用于产品，可以直接使用(Analog-digital conversion chip to read and write ads1100 procedures have been applied to products, direct access to)

使用STM32F103 32位芯片配置触摸屏以及控制触摸屏(Configuration of Touch Screen and Control Touch Screen with STM32F103 32 Bit Chip)