89C51PWMhuibianyuyan

基于单片机STC59C52的温湿度控制，开题报告(Based on SCM STC59C52 temperature and humidity control, opening report)

单片机开平方的快速算法 比牛顿迭代法更加快速(Single-chip square root of the fast algorithm for more than Newton iteration Express)

说明：  嵌入式之使用STM32F429完成锁相环放大器的设计，包含C语言源码。(PLL Amplifier completed by STM32F429.)

LPC1788的LCD模块驱动程序，C语言环境下写成(LPC1788 LCD DRIVE)

三星S3C44B0X的I2C总线功能模块测试，该程序实现了的各种读写操作，硬件调试通过(Samsung S3C44B0X the I2C bus function module test, the program has a variety of read and write operations, hardware debugging through)

通过 Modbus 通讯 RS485 型物理链路，或装有适当变换器的其他接口使 Sepam 能 与远程监控系统连接。 Sepam 采用的 Modbus 规约与 RTU Modbus (1) 规约的子集兼容 ( 一个 Modbus 主 机可以同多个 Sepam 单元通讯 )。 Sepam 永远是子机 ( 从站 )。 所有 Sepam 单元均可配置 ACE949-2 ( 二线 ) 或 ACE959 ( 四线 ) 接口与通讯网络 连接。 RS485 和 ACE937 可连接到通讯网络，光纤通讯星形系统。(Communication via Modbus RS485 type physical link, or fitted with suitable converters other interfaces can make Sepam Connection with a remote monitoring system. Sepam uses a subset of the Modbus protocol with RTU Modbus (1) of the Statute compatible (a Modbus master Machine unit can communicate with a plurality of Sepam). Sepam is always a slave (slave). All Sepam unit can be configured ACE949-2 (wire) or ACE959 (four-wire) communications network interface connection. RS485 and ACE937 can be connected to the communications network, fiber-optic communication star system.)

通过DS18B20读取温度（范围-55C~125C，精确到小数点后一位），通过4位数码管显示出来。 当温度为正且百位为零时，不显示，当温度为负时百位显负号。当温度百位和十位都为0时0都不显示。(Read through the DS18B20 temperature (range-55C ~ 125C, accurate to one decimal), through four digital tube display. When the temperature is zero and 100, do not show, when the temperature is significantly negative at minus 100. When the temperature is 100 and 10 are not displayed 0:00.)

说明：  1.从键盘上输入若干两位十进制数,寻找其中的最小值,然后在屏幕上显示出来. 2.两个十进制数之间的分隔符,输入结束标志自定,但要在报告中说明. 3.对输入要有检错措施,以防止非法字符输入,并有适当的提示. 4.将整个程序分解为若干模块,分别用子程序实现.在报告中要给出模块层次图.(1 Enter a number from the keyboard two decimal digits, to find the lowest value, and then displayed on the screen.           Separator 2. Between two decimal numbers, marks the end of a custom input, but to explain in the report.           3 have error detection on the input measures to prevent the illegal character input, and have the appropriate prompt.           4. The entire program is divided into several modules, each with subroutines in the report to give the module hierarchy diagram.)

说明：  mpu6050读取数据，利用卡尔曼滤波，使数据更加准确(Mpu6050 reading data)

说明：  nordic esb bootloader