jiaotongxinhaodeng

stm32硬件i2c，从机i2c，调试通过好用(Stm32 hardware i2c, the plane i2c, debugging through the use of good ~~~)

编写一段程序 统计从1000年到1999年之间闰年的个数 最后输出到屏幕上来(writing a program to sum up the numbers of leapyear between 1000 and 1999.Finally,showing the result on the screen.)

说明：  使用STM32F103C8T6系统板，通过两个NRF24L01模块实现无线通信，将光电二极管驱动电路采集到的荧光强度值无线传输到上位机的串口软件显示出来。(Using stm32f103c8t6 system board, wireless communication is realized by two nRF24L01 modules, and the fluorescence intensity value collected by the photodiode driving circuit is wirelessly transmitted to the serial port software of the upper computer to display.)

自己写的一个带有松手检测和长按识别，短按识别，长短按区分的键盘扫描程序(Write your own keyboard scanner with a loosely detection and long-identification, press recognition, length according to the distinction)

输出12路死区互补同步中间对齐PWM的定时器配置(Timer Configuration of 12-way Complementary Dead Zone Synchronized Intermediate Alignment PWM)

This is my ECG signals data.

Microsoft Visual Studio 2010 Express 快速功能鍵(Microsoft Visual Studio 2010 Express Keybinding Brochures)

该程序为C8051F020型单片机用于采集频率信号和模拟量信号以及对采集后的信号进行逻辑判断(This program is for C8051F020 Single Chip and is applied to collect frequency signal and analog signal as well as judge these signals logically. )

This source code is to read disk data .

：LTE(Long Term Evolution，长期演进)系统中的小区初始搜索过程通过分别检测主同步信号(Primary Synchronization Signal，PSS)和辅同步信号(Secondary Synchronization Signal，SSS)来完成，搜 索结果包括小区组ID、符号定时、频偏估计、组内小区ID以及帧定时[1]。然而，若接收信号   1IDN  2IDN 中存在整数倍频偏，则由于时域的相位旋转，主同步信号将很难用传统的相关算法检测到。提出一种主同步信号与整数倍频偏联合检测的方法，即使存在整数倍频偏，也能得到正确的符号定时。辅同步信号采用的是非相干的差分相关检测[2]，仿真表明，与传统的匹配滤波算法相比，可以有效的对抗信道时延扩展和载波频偏，适用于高速场景下时分双工(Time Division Duplex，TDD)LTE系统的同步。(In LTE systems, the initial cell search process is completed by detecting the primary synchroniza-tion signal and the secondary synchronization signal. The searching results include cell ID group, symbol timing, frequency offset estimation, intra group cell ID and frame timing[1]. However, if integer frequency offset presents in the received signal, due to time-domain phase rotation, the primary synchronization signal will be difficult to detected using the conventional correlation algorithm. A new joint detection method for integer frequency offset and primary synchronization signal is proposed, which can get the correct symbol timing even if the presence of integer frequency offset. Secondary synchronization signal is processed using the differential non-coherent correlation detection method[2]. Simulations show that compared with the tradi-tional matched filtering algorithms, it can effectively combat the channel delay spread and carrier frequency offset and especially suitable for )