chips used in 51 of the classic serial communication program source code (using...

ICCavr编写的TWI总线协议读写函数，测试通过-ICCavr prepared by TWI bus protocol to read and write function, the test

sd卡(驱动)工作原理分析，对驱动SB卡有很大帮助-sd card (driver) working principle analysis of SB card drivers are very helpful

奉上刚做好的测温小制作--基于DS18B20传感器 今个学期刚学了单片机，学期末的时候老师要求每个人都做个有关单片机应用的小制作，而我的作品就是这个。DS18B20挺好用的，功能很强（我用到的只是最简单的）。可惜现在没时间（要考试！），等下吧，考完后我再努力将这个小制作的功能加强，特别是想做到能自动识别传感器ID号的功能。 我知道有很多人都对DS18B20很感兴趣，借此奉上源代码，实物我已经做好了，测温很稳定。希望对大家有帮助。-Thermometry of small production-- DS18B20 sensor based on this semester just learning the microcontroller, the end of the teacher asked each one of the SCM application to be a small production, and I was in the works. DS18B20 very good use, and highly functional (I use only the most simple). Unfortunately, there is no time (to test!) , And so are you, I again after taking the efforts of the small production of functional strengthened, in particular to achieve recognition sensor can automatically ID function. I know that many people are very interested in right DS18B20 to enclose the source code, in-kind I have done well, very stable temperature measurement. We want to help.

介绍了公交车IC卡电路图，汇编原程序-introduced the bus IC card circuit, the compilation of the original procedure

单片机编程的bcd码和hex码的互换，BCD2HEX 例子： c=BCD2HEX(0x255) //255 转成HEX为0xff c=HEX2BCD(0xff) //0xff 转成BCD码为 2-microcontroller programming bcd yards and hex code swap BCD2HEX example : c = BCD2HEX (0x255)// 255 to HEX conversion c = 0xff HEX2BCD (0xff)// 0xff conversion of 255 BCD

X25045为看门狗专用芯片，很常用，也很实用，尤其对小系统非常值-X25045 to watchdog ASIC, very commonly used, is also very practical, especially for very small values system

NRF24l01无线232通信 程序代码 C51 接收-NRF24l01

奉献：485 [日期：2005-11-29] 来源：侃单片机 作者：etiller [字体：大 中 小] -Dedication: 485 [Date :2005-11-29] Sources: McCain Singlechip Author: etiller [Font: Xinhuanet]

这是一个PCB常用的封装，特别是对于学单片机的同志来说是不可多得的-This is a commonly used PCB package, especially for school comrades Singlechip is rare

C51写的Zi2020 FM发射模块控制代码！-C51 wrote Zi2020 FM transmitter module control code!