基于pic系列单片机的，R61505U的lcd驱动芯片代码。

硬盘、u盘、mmc、cd-rom mp3播放器源码-Hard drive, u disk, mmc, cd-rom mp3 player source code

汇编语言写的，支持读取wav并将波形显示在屏幕上，是自己多年以前的一个课程设计的作业程序，希望对朋友有所帮助-compilation of the written language, and will support wav read waveform display on the screen of their own years ago a curriculum design of the process, and I hope to help a friend

LCD常用取模软件,还行-LCD common modulus of software, but also line

AD转换器MAX127驱动程序（ KEIL C51 ）-AD converters MAX127 driver (KEIL C51)

MS-51 高级应用程序库，欢迎各位大虾下载交流分享，望多多上传，资源共享-MS-51 high-level application library, to welcome you to download the exchange of shrimp to share, hope lot of uploading and sharing resources

C51单片机开发板电路和源代码，很详细，内部有该开发板的说明。顺便感谢下制作的公司-C51 single-chip development board circuit and the source code, very detailed and has an internal description of the development board. Incidentally, thanks to the production company under the

ok!The program is very good!

16进制转压缩型BCD码的C语言实现-16 hexadecimal to BCD code compression realize the C language

DS18b20温度计,可以检测温度的变化，精度高-ds18b20

MCS-51单片机有5个中断源，其中两个是由-INT0、-INT1引脚输入的外部中断源；另外三个是内部中断源即由T0、T1的溢出引起中断和串行口发送完一个字节或接收到一个字节数据引起中断。触发外部中断有两种方式，即下降沿引起中断或低电平引起中断。当编程TCON中的ITi（i=0、1）为1时，则引起触发的方式为边沿触发方式，反之(ITi=0)为低电平触发方式。每个中断源的中断请求能否得到响应要受两级“开关”的控制，即一个总“开关”-MCS-51 single-chip has five interrupt sources, two of which are by-INT0,-INT1 pin input external interrupt source the other three internal interrupt sources from the T0, T1 overflow caused by the disruption and serial port sending or receiving end of a byte to a byte of data caused by interruption. Triggered external interrupt has two modes, namely, falling edge or low-level disruption caused disruption caused. When programming TCON in ITi (i = 0,1) for the 1:00 has been the subject of a way to trigger the way to the edge of the trigger, on the contrary (ITi = 0) for low-level trigger mode. Each interrupt source interrupt request can be subject to levels in response to