C8051F040 t3可调频率方波输出例程

/*P89CXX计算机程序员发送*//*所需定义编程cpu类型0:P89C51 1:P89C52 2:P89C54 3:P89C58 4:P89C51RC 5:P89C51RD*/

用SD模式读SD卡的代码,写功能尚未实现,希望能给您一点帮助!-SD mode with SD card code reading and writing function has not yet been achieved, I hope to give you a little help!

16分钟语音芯片ISD4004操作的C51源程序，自己调试通过的！-16 minutes of voice chip ISD4004 operated source C51, adopted its own debugging!

单片机做的4*4小键盘，学单片机的好资料，proteus仿真通过，学习的好资料-Single-chip to do 4* 4 small keyboard, learning good information on SCM, proteus simulation adoption, learn good information ...

单片机应用源码,包括各种简单操作，同时还有大型应用，例如IC卡读写，多机通信等-SCM application source code, including all simple to operate, but also to large-scale applications, such as IC card reader. Multi-machine communication

温度控制系统，控制核心采用51单片机，很好的实例-Temperature control system, control the use of 51 single-chip core, a very good example of

介绍一种高分辨率的双路A/D转换器AD7711，能满足双路A/D采样要求。内容包括AD7711的特点， 内部寄存器结构和外部接口，并详细阐述了数据采集系统中AD7711与单片机AT89S8252的接口技术，包 括硬件接口电路和软件程序设计及其注意事项。 -Introduce a two-way high-resolution A/D converter AD7711, can satisfy the dual A/D sampling requirements. Include the characteristics of AD7711, the internal register structure and the external interface, and detailed data acquisition system with the AD7711 single-chip AT89S8252 interface technologies, including hardware interface circuit and software design and its attention to matters of procedure.

51实现ADC的源程序， -51 realize the source ADC,

MSP430和LCD驱动芯片HT1621的驱动程序-MSP430 and LCD Driver IC HT1621 driver

8*8点阵LED显示器的设计 并且有原程序和说明 很好的-8* 8 dot matrix LED displays and the design of the original procedure and a good note