LT_1B msp430开发板例子程序－TB9

本文介绍了AT89C2051单片机的性能和特点，并在分析了超声波测距原理的基本系统框图。该设计系统经校正后，其测量精度可达0.1米-This paper introduces the AT89C2051 performance and features, and the analysis of the ultrasonic distance measurement principle diagram of the basic system. The design of the system calibration, measurement accuracy of 0.1 meters

这是由C51单片机实现的接触式IC卡的读写-This is achieved by the C51 single-chip contactless IC card read-write

自定义的USB设备单片机固件程序，基于PDIUSBD12 usb接口芯片-Custom single-chip USB device firmware, based on PDIUSBD12 usb interface chip

THE USE OF74LS164 74LS164 74LS164 -THE USE OF74LS164 74LS16474LS16474LS16474LS164

DS1820v2.c simple 1wire example-DS1820v2.c simple 1wire example

Msp430的flash读写文件配置文件，(msp430f427芯片)-MSP430

dsp 5509a 的usb程序ATMEGA16单片机进行AD转换的源程序代码-dsp 5509a the usb procedures ATMEGA16 microcontroller for AD conversion of the source code

实现层的隐藏与显示,功能比较完善,请大家一定要下下来好好研究-The realization of the hidden layer and showed that a relatively complete feature, please we must carefully study down under

按键扫描 51单片机加8279 8279通过74LS 138译码器扩展4×4键盘、6位显示器。 由3-8译码器对SL0～SL2译出键扫描线，由另一3-8译码器译出显示器的位扫描线，并采用了编码扫描方式。 为了防止出现重键现象，扫描输出线高位SL3不参加键扫描译码。CPU对8279的监视采用了查询方式，故8279的中断请求信号IRQ悬空未用。 -Scan button 82,798,279 plus 51 single-chip decoder 74LS 138 through the expansion of 4 × 4 keyboard, the display 6. From 3-8 decoder SL0 ~ SL2 translated to the key scanning line, by another 3-8 decoder translated display scan line, and uses code scanning. In order to prevent the emergence of the phenomenon of re-key, scan the output line does not take part in high level SL3 scan decoding keys. CPU on the 8279 surveillance using the query mode, the 8279 interrupt request signal IRQ left unused.

利用MSP430 单片机的一般 I/O口进行的数字量的采集 利用A/D采集通道实现模拟量到数字量的转化-use of the general I/O port for the digital collection using A/D channel analog output of the digital conversion