power-system-risk-assessment

线路通断检测器的设计： 1．用压电陶瓷蜂鸣片作为电声元件。 2．用两根导线作为测试探针 3．线路通断是通过测试电阻的大小来判断，有以下三种情况： （1）若150Ω<Rx<900Ω，则蜂鸣片不发出声响。 （2）若Rx>900Ω或者Rx<150Ω，则蜂鸣片发出间歇式的滴－滴声响。 以上各临界阻值（150Ω和900Ω），允许误差±10％ 4．＋15V直流稳压电源需要设计。 (Line-off detector design: 1. Piezoelectric ceramic buzzer as the electro-acoustic components. 2. As a test probe with two wires 3. Lines off by testing the resistance to determine the size, the following three conditions: (1) If 150Ω <Rx <900Ω, the buzzer is not audible. (2) If Rx> 900Ω or Rx <150Ω, then the buzzer sent intermittent drip- drip sound. Above the critical resistance (150Ω and 900Ω), tolerance ± 10 4.+15 V DC power supply need to design. )

主要是完成Listctr的封装,和对于xlistctrl 的一个实例程序 (The main package is completed Listctr)

具備fat格式 讀取sd card內的圖片顯示在tft螢幕上 (lpc17xx系列)(HAVE FILE SYSTEM AND CAN READ PICTURE IN SD CARD THEN DISPLAY ON TFT(LPC17XX ))

125k t5557卡 读写(keil C51 T5557 READER)

Indexing addrresses in NASM assembly

说明：  基于stm32固件库的跑马灯范例，供参考(An Example of Racing Horse Lamp Based on STM32 Firmware Library)

说明：  足球机器人小车总体设计思想及其单片机选型(The soccer robot car overall design thinking its microcontroller selection)

IOS端通过蓝牙发送和接收 用的是OC语言，在MACOS上编程(bluetooth sent data and bluetooth received data for IOS)

开关量光耦采集、达林顿管输出、Modbus RTU协议，协议需求文档在另外上传的STM32 Modbus开关量需求文档中。(Switch light coupling and collection, darlington tube output, Modbus RTU protocol, protocol requirements document in another upload STM32 Modbus switch quantity in the requirements document.)

信号检测 51单片机 通过外部中断检测信号源的脉宽周期频率(51 single-chip signal detection signal detected by an external interrupt source of the pulse cycle frequency)