基于ARM7

开关稳压电源 开关稳压电源-Switching Power Supply Switching Power Supply

AVR脉宽调整的程序，还可以！具有借鉴的价值！-AVR width adjustment procedures, but also! With reference value!

因需要，单片机的键盘扫描和数码管显示共用一口，用定时器实现，原创-Due to the needs of single-chip microcomputer keyboard scanning and sharing a digital tube display with a timer to achieve the original

一个用C51驱动PT6324+VFD的源程序，绝对可执行

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.

利用单片机实现RS485多机通信程序示例-use MCU RS485 multi-machine communication program examples

电路实验，密码锁，详细的实验报告，好东西，多多分享-Experimental circuit, password lock, a detailed experimental report good things, a lot to share

看门狗的使用方法例程（C语言）-watchdog on the use routines (C language)

我在使用的一个1335SED液晶屏程序.-I use an LCD screen 1335SED procedures.

凌阳061a单片机语音识别必须包含 的库和源文件-Sunplus 061A single-chip speech recognition must include the library and source files