基于凌阳单片机数字电子钟开发源代码，是已经调试好的源代码，可以直接用。...

STC12C5402型

用LCD1602来显示日期和时间，源码程序-LCD1602 display with date and time, source program

频率测量程序，都是正在产品的使用中，高低频自动切换显示-Frequency measurement procedures, are all products in use, high-low-frequency automatic switching display

用AT89S52实现鉴相功能，用于对光电编码器的输出进行编码。-Using AT89S52 realize phase function, optical encoder used to encode the output.

SPI是一个环形总线结构，由ss（cs）、sck、sdi、sdo构成，其时序其实很简单，主要是在sck的控制下，两个双向移位寄存器进行数据交换。 假设下面的8位寄存器装的是待发送的数据10101010，上升沿发送、下降沿接收、高位先发送。 那么第一个上升沿来的时候 数据将会是sdo=1；寄存器=0101010x。下降沿到来的时候，sdi上的电平将所存到寄存器中去，那么这时寄存器=0101010sdi，这样在8个时钟脉冲以后，两个寄存器的内容互相交换一次。这样就完成里一个spi时序。 -SPI bus is a ring structure, by ss (cs), sck, sdi, sdo composition, its timing is actually very simple, mainly under the control of the sck and two bi-directional shift register for data exchange. Assuming the following 8-bit register is loaded to send the data to be 10,101,010, rising to send, receive falling edge, high first sent. Well, the first rising edge to the time data will be sdo = 1 register = 0101010x. Falling edge comes, sdi on the level will be stored to the register, then register at this time = 0101010sdi, so 8 clock pulse later, the contents of two registers to exchange time. This will be completed in a spi timing.

TLC5615是TI公司的10位D/A转换芯片，DIP-8封装，数据为串行方式，简单好用。内有该芯片的KIEL C51源代码，希望和大家共享。-TLC5615 is TI

一个精彩的汇编程序，实现电子琴和倒计时功能，附有仿真文件-A wonderful compilation of procedures, to achieve organ, and the countdown function, with a simulation file

本程序将指定的显示缓冲区送显，并将读取的键值送显。 入口参数：显示缓冲区首地址在SADR中,要显示的位数在CNT中。 出口参数: 无。-This procedure will be sent to the designated display buffer significantly, the key will be sent to a significant reading. Entrance parameters: the first address in the display buffer SADR, it is necessary to show that the median of the CNT. Export parameters: None.

是单片机对交通灯的ASM 编程源程序代码，有用，只能做为参考-SCM is the traffic lights to the ASM program source code, useful only as a reference

一个警报声程序 　　　　　　　　　　　　　　　　　 一个警报声程序-an alarm sounded a siren procedures procedures