niebeigui

说明：  ADI公司的AD4111是具有±10V和0 mA至20 mA输入和明线检测功能的低功耗 24 位 Σ-Δ ADC,集成了模拟前端(AFE),还集成主要模拟和数字的信号调理区快,为每个模拟输入通路配置成八种单独建立图,最大通路扫描速率6.2 kSPS(161 μs),嵌入的2.5V低漂移(5 ppm/℃)能隙基准电压降低了外接元件数量,单电源5V或3.3V工作,工作温度?40℃ 到 +105℃,主要用在过程控制PLC和DCS模块.本文介绍了AD4111主要特性,功能框图以及评估板EVAL-AD4111SDZ主要特性,框图,电路图,材料清单和PCB设计图.(The AD4111 is a low power, low noise, 24-bit, sigma-deltaanalog-to-digital converter (ADC) that integrates an analog front end (AFE) for fully differential or single-ended, high impedancebipolar,10 V voltage inputs, and 0 mA to 20 mA current inputs. The AD4111 also integrates key analog and digital signalconditioning blocks to configure eight individual setups for each analog input channel in use. The AD4111 features amaximum channel scan rate of 6.2 kSPS for fullysettled data.)

ARM与FPGA结合的几十篇文章，可以作为ARM与FPGA开发的参考(ARM and FPGA combination of dozens of articles, can be used as the development of ARM and the FPGA reference)

NuttX I2C demo代码，基于Atmel SAMV71 XPlained Pro平台，NuttX内核版本V7.23(I2C demo source code for NuttX RTOS based-on Atmel SAMV71 XPlained Pro, NuttX kernel version was 7.23)

STM32 GPIO 设定方面的知识，适用于初学都者。

共5个文件。2个描述了一些时钟的初始化以及时钟的使用。2个描述了UART的使用。一个文件是一个简单的使用示例。(This zip file contains the simple code to control the stm32 components. It tells how to initialize the clock module, use the clock module, and how to do the same thing to UART.)

说明：  个人改编的4X4矩阵键盘，不考虑弹起，有兴趣者可下载研究(Personal adaptation of 4x4 matrix keyboard, regardless of bounce)

From NXP about UART,I2C,UART

使用STM32的DSP库函数，对AD来的信号进行FFT变换，并显示到LCD屏上。做的是512点fft，显示240个数，且有一定的精度保证。具有很高的实时性。(Use the STM32 DSP library functions, the signal of the AD to the FFT transform, and display to the LCD screen. Do is 512 points fft, show the number 240, and there is a certain guarantee of accuracy. With real-time high.)

说明：  三星2440 adc裸机源码，可以调试修改(S3C2440 adc source code)

基于stm32的TVL5618的驱动程序，亲测可用(Based stm32 of TVL5618 driver, pro-test available)