fourietrans

强噪声背景下弱信号检测，采用平衡式取样积分电路。包含电路原理，基于IAR的msp430f149的DDS脉冲程序和峰值检波程序，检波方法：sqrt(Acos^2+Asin^2)(Strong noise weak signal detection, the use of balanced sampling integrator circuit. Contains circuit theory, based on the IAR msp430f149 of the DDS program pulse program and peak detector)

CS1180AD转换芯片的有关程序，带lcd1602，iic，按键扫描，串口通讯。欢迎下载(Procedures CS1180AD conversion chip with lcd1602, iic, key scan, serial communications. Welcome to download)

说明：  控制器局域网总线（CAN，Controller Area Network）是一种用于实时应用的串行通讯协议总线，它可以使用双绞线来传输信号，是世界上应用最广泛的现场总线之一。CAN协议用于汽车中各种不同元件之间的通信，以此取代昂贵而笨重的配电线束。该协议的健壮性使其用途延伸到其他自动化和工业应用。CAN协议的特性包括完整性的串行数据通讯、提供实时支持、传输速率高达1Mb/s、同时具有11位的寻址以及检错能力。(Controller area network bus (CAN Controller, Area Network) is a serial communication protocol for real-time application of the bus, it can use a twisted pair to transmit the signal, is the world's one of the most widely used field bus. The CAN protocol is used to communicate between different components of an automobile to replace the expensive and bulky wiring harness. The robustness of the protocol extends its use to other automation and industrial applications. The characteristics of CAN protocol include serial data communication, integrity to provide real-time support, the transmission rate of up to 1Mb/s, also has 11 bit addressing and error detection capability.)

计时器,实现时钟计时(reckon by time)

在SMT32F7平台上的基于FreeRtos系统的Lwip1.4的移植(Transplantation of Lwip1.4 Based on FreeRtos System on SMT 32F7 Platform)

超声仿真field ii教程,学习的好帮手(Ultrasound simulation field ii tutorial)

AVR32单片机驱动OV7620+FIFO的程序(AVR32 microcontroller drive OV7620+ FIFO procedures)

通过单片机控制，实现8个led灯流水显示。(Through the control of the single-chip microcomputer, 8 LED lights are displayed.)

通过STM32,实现指针式电子时钟编程的方案。(The Scheme of Implementing Pointer Electronic Clock by STM32)

说明：  ST7920带中文字库液晶原码程序 12864 keil的，串行方式 编写时已经考虑到往avr上的移植了，spi可以用avr硬件的，也可以用io模拟，甚至可以用mega48的串口做spi主机 ，经过我的测试串行方式，在cs无效时，7920还是可以接受数据，导致显示被误改，如果spi上接了其它器件，小心使用。(Driver with the original Chinese font LCD procedure code 12864 Keil. Serial way has been prepared to take into account the transplant avr, 20 avr hardware can be used, io can also use the simulation, or can even be done Serial mega48 20 mainframe, I have serial testing, cs in vain, 7920 can still receive data, resulting in the misuse of reform shows that if 20 on to other devices, careless use.)