用LCD1602来显示日期和时间，源码程序

FIQ有FIQ_PWM、FIQ_TMA和FIQ_TMB三个中断源,当定时器A或B计满溢出时产生中断请求信号TA_TIMEOUT_INT或TA_TIMEOUT_INT,CPU响应后进入中断执行相应的子程序控制二极管发光。A口的低四位接LED灯，B口的低四位接LED灯.-FIQ has FIQ_PWM, FIQ_TMA and FIQ_TMB three interrupt sources, when the timer A or B when the expiration overflow interrupt request signal TA_TIMEOUT_INT or TA_TIMEOUT_INT, CPU response after interruption of the implementation of the corresponding subprogram control light-emitting diodes. A low population of four LED lights then, B I take the low four LED lights.

PCI_Express PCB Guidelines

基于AD9850/9851的数字信号发生器,调试通过，keilC51环境-AD9850/9851 based on digital signal generator, debug through, keilC51 environment

protel99se的十来个元器件库文件。希望对大家画图的时候能起到帮助。-Protel99SE library file of a dozen components. Wish to draw a time when everyone can help.

将演示数据先写入24C04芯片内，再将其数据逐个读出送P0口LED显示。-Data will demonstrate the first to write 24C04 chip, and then read out the data sent by P0 I LED display.

bd3201-14A（DRE）提供的高性能数字音频信号处理能力，可实现紧凑的，易用 的，高质量的混响效果解决方案-bd3201-14A (DRE) provides high-performance digital audio signal processing capabilities, enabling compact, easy to use, high-quality reverb solution

crc 51 单片机计算程序，保证51利用串口通讯的可靠传输-crc 51 single-chip computing

说明：此程序使用标准PS2键盘输入，LCD1602液晶屏输出显示。此样例仅作测试使用 晶振使用12M或者11.0592M,本键盘使用部分字母和数字测试，其他按键不能使用，用 户可以自行扩展。由于开发板和程序的各种参数，程序中没有使用奇偶校验，不保证没有 误码,校验程序请自行添加。-Description: This program uses the standard PS2 keyboard input, LCD1602 LCD output display. This sample is only used for testing the use of crystal 12M or 11.0592M, this keyboard to use part of letters and numbers tests, other buttons can not be used, users can expand their own. As the development board and procedures for various parameters, the program does not use parity, does not guarantee that there is no error, verification procedures to add your own.

mcs-51单片机实用子程序库-mcs-51 microcontroller practical subroutine library

开发流程-Development process