坦克大战

max7219驱动，适用于凌阳SPCE061A-max7219-driven, in Sunplus SPCE061A

arm ads下 usb代码（实现了arm单片机无操作系统下的usb device）-arm ads under the usb code (SCM arm achieved without the operating system under the usb device)

FPGA上实现的LCD显示器经典的控制程序-FPGA implementation of LCD monitors on the classic control procedures

由 Xilinx 提供的 IIC 接口，使用 AXI interface。 Features ‧ AXI interface is based on the AXI4-Lite interface ‧ Master or slave operation ‧ Multi-master operation ‧ Software selectable acknowledge bit ‧ Arbitration lost interrupt with automatic mode switching from master to slave ‧ Calling address identification interrupt with automatic mode switching from master to slave ‧ START and STOP signal generation and detection ‧ Repeated START signal generation ‧ Acknowledge bit generation and detection ‧ Bus busy detec ‧ Fast mode 400 KHz operation or standard mode 100 KHz ‧ 7-bit or 10-bit addressing ‧ General call enable or disable ‧ Transmit and receive FIFOs - 16 bytes deep ‧ Throttling ‧ General purpose output, 1 bit to 8 bits wide ‧ Dynamic Start and Stop generation ‧ Filtering on the SCL and SDA signals to eliminate spurious pulses

液晶sed1335芯片，LCM驱动程序。-sed1335 LCD chips, LCM driver.

该源代码采用的非接触式读卡协议是14443A，可以读写IC卡的各个扇区，还能做加值减值处理，该工程所使用的主控单片机是ＳＴＣ８９Ｃ５８ＲＤ＋，射频读卡芯片用的是ＦＭ１７０２

USB在嵌入式系统中的应用。 USB在嵌入式系统中的应用。-how to use usb in embedded system.

嵌入式freetype库的应用文档包含freetype的简要说明和应用example-Embedded Application freetype library freetype document contains a brief description and application example

这个源代码实现了51单片机多路舵机同时控制程序，已通过测试

R2S15902音频IC I2C初始化 用于音响、车载等 -IC I2C initialization R2S15902 audio for audio, car, etc.