PIC18F252 / 452 Bootloader

我写的电子琴用8253的程序，有点浪费资源，不过听好用的，大家不妨参考一下-I write flower with 8,253 procedures, a bit of a waste of resources, but to listen to everything, you may wish to make reference to

（1）该码功能是将数组后n为一次放在数组前面，不改变其他元素顺序； （2）用二分法求方程的根。-(1) of the code after the function is an array on an array of n for the first time in front of the other elements do not change the order (2) equation for the root of the dichotomy.

An example to illustrate how to set the internal adjustable CID gain and receive FSK or DTMF data. Assume end-code of DTMF data string is "D".-An example to illustrate how to set the inte CID rnal adjustable gain and receive FSK or DTMF data. Assume end-of DTMF code data string is "D" .

片机电子钟的计时脉冲基准是由外部晶振的频率经过12分频后提供，采用内部的定时/计数器来实现计时功能。所以，外接晶振频率精确度直接影响电子钟计时的准确性。 -Machine electronic time clock pulse baseline is by an external crystal oscillator frequency, after 12 minutes after the frequency, using an internal timer/counter to achieve the timing function. Therefore, the external crystal frequency accuracy of a direct impact on the accuracy of the electronic time clock.

“神经网络剪枝算法”是一种通过简化神经网络结构来避免网络过拟合的有效方法之一。将权值拟熵作为惩罚项加入目标函数中，使多层前向神经网络在学习过程中自动约束权值分布，并以权值敏感度作为简化标准，避免了单纯依赖权值大小剪枝的随机性。由于在剪枝过程中只剪去数值小并且敏感度低的连接权，所以网络简化后不需要重新训练。算法效率明显提高。

source code for alarming

//浮点异常的控制位 #define FPUEM_INVALIDOP 0x01 #define FPUEM_DENORMALOP 0x02 #define FPUEM_ZERODIVIDE 0x04 #define FPUEM_OVERFLOW 0x08 #define FPUEM_UNDERFLOW 0x10 #define FPUEM_PRECISON 0x20 #define __FORCE_INLINE__ __inline /*---------------------------------------------------------- 打开指定的浮点异常 关闭指定的浮点异常-//float abnormal control-# define FPUEM_INVALIDOP 0x01# define FPUEM_DENORMALOP 0x02# define FPUEM_ZERODIVIDE 0x04# define FPUEM_OVERFLOW 0x08# define FPUEM_UNDERFLOW 0x10# define FPUEM_PRECISON 0x20# define __FORCE_INLINE __ __inline /*---------------------------------------------------------- designated open abnormal closure of the floating-point designated float anomalies

液晶YM12864与AT89S51并行通信，可以显示四行中文字符-AT89S51 LCD YM12864 with parallel communication, can display four lines of Chinese characters

武汉理工大学计算机学院 汇编语言课程设计之乐曲程序源代码-Wuhan Polytechnic University computer science curriculum design language compilation of musical source code

带界面的两位数计算器，完成加减乘除运算欢迎使用-calculator