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说明：  由晶格振动声子态密度计算迪拜温度、比热、振动熵等热力学性质的程序。(the programme for caculation of the debye temprature，specific heat, entropy and so on from the DOS of phonon )

rs232 communication for PIC 16f877 using ccs compiler

神经网络中的权值、阈值以及中间变量很多，但是单片机的程序区和数据区的容量都是有限的。89C52程序区为8K字节，数据区为256K字节。由于探测器受体积限制应尽量避免外扩存储器，所以在实现计算时，要将权值和阈值写成立即数形式减少资源占用。(Neural network weights, threshold and intermediate variables, but procedures for single-chip area and the volume of data are limited. 89C52 process area for 8K byte, 256K-byte data area. As the detector by the volume limit should be avoided as far as possible outside the extended memory, so in the realization of the calculation, the right to the threshold value and written in the form of an immediate reduction in the number of occupied resources.)

51单片机使用短信Modem发送短消息的例子。(51 MCU send text messages using SMS Modem example.)

ADS1258开发，程序源代码，还要20字 好恶心(ADS1258 development, source code, but also the word disgusting 20)

BF51实验板CAN通信器件SJA1000驱动代码(BF51 experimental board SJA1000 CAN communication device driver code)

光伏电池阵列输出功率受光照强度和温度变化的影响，因此最大功率点跟踪（MPPT）技术广泛应用于光伏系统中。在所有最大功率点(MPP)控制策略中，扰动观察（P&O）MPPT算法因易实现被广泛应用，然而它的缺点是在稳定工作状态下工作点通过MPP 时会导致能量振荡损耗，并且在光照强度或温度发生突变时表现较差的动态响应。在本文中，提出一种改进型变步长扰动观察MPPT 算法，此方法依据工作点动态调整步长变化，与传统固定步长方法比较，本文提出的方法(Photovoltaic array output power is affected by light intensity and temperature change, so the maximum power point tracking (MPPT) technique is widely used in light volt system.In all of the maximum power point (MPP) control strategy, the disturbance observation (P&O) MPPT algorithm is widely used because of easy to implement, but its drawback is that under the steady working state working point by MPP will cause energy loss of oscillation, and the mutations in poor light intensity and temperature of dynamic response.In this article, the paper puts forward a modified variable step disturbance observation MPPT algorithm, this method is based on the working point dynamic adjustment step change, compared with the traditional fixed step length method, the proposed approach)

智能巡检黑线小车的上位机程序源码。stm32开发板用的。(Intelligent patrol car black line the upper computer program source. stm32 development board.)

说明：  STM32编码器测速程序，霍尔传感器测速(STM32 encoder speed measurement program, Hall sensor speed measurement)

在MSP4305529上设计开发的，基于ADS1292的51阶，151阶的低通滤波算法，可以准确滤出50HZ干扰。(Design and development on MSP4305529 based on ADS1292, 51 order, 151 order low-pass filtering algorithm, can filter out 50HZ interference.)