adc equalizer

First, the ADC conceptTo convert analog signals into digital signals. Second, the Code framework#include"stm32f10x.h"voiddelay (u32 kk) { while(kk--);}intMain () {U16 AD=0, adc0=0; Gpio_inittypedef gpio_initstructure; Adc_inittypedef adc_initstructure; Rcc_apb2periphclockcmd (Rcc_apb2periph_gpioa|RCC_APB2PERIPH_ADC1, ENABLE); Gpio_initstructure.gpio_pin=gpio_pin_0; Gpio_initstructure.gpio_mode=Gpio_mode_ain; Gpio_init (Gpioa,gpio_initstructure); Adc

# Define adc_buffer_num 6 Int adc_value_buf [adc_buffer_num];Int adc_index_count; Bool adc_buf_initialized; Static int get_adcvalue (struct ics_proximity_data * ICS){Int I = 0;Int J = 0;Unsigned int adc_total = 0;Int adc_avr_value = 0;Unsigned int adc_index = 0;Unsigned int adc_max = 0;Unsigned int adc_min = 0;Int value = 0; Value = get_adc_value (); Adc_index = (adc_index_count ++) % adc_buffer_num; If (! ICS-> adc_buf_initialized ){ICS-> adc_buf_initialized = true;For (j = 0; j

usart1 rx (pa.10) as input floating */Gpio_initstructure.gpio_pin = gpio_pin_10;Gpio_initstructure.gpio_mode = gpio_mode_in_floating;Gpio_init (gpioa, gpio_initstructure ); /* Configure pc.0 \ 1 \ 2 \ 3 \ 4 \ 5 (ADC channel10 \ 11 \ 12 \ 13 \ 14 \ 15) as analog input */Gpio_initstructure.gpio_pin = gpio_pin_0 | gpio_pin_1 |Gpio_pin_2 | gpio_pin_3 |Gpio_pin_4 | gpio_pin_5;Gpio_initstructure.gpio_mode = gpio_mode_ain;Gpio_init (gpioc, gpio_initstruct

Assuming an existing set of Sigma-delta ADC output sequences, two methods for calculating the corresponding Snr are described below. The CIW window command where data is exported by cadence is: ocprint (? Output "Export directory/output file name" V ("/Saved circuit node"? Resultsdir "cadence Emulation Data Catalog/PSF"? Result "" Tran-tran ")? From the start time to the cut-off time? Step Step).Method One:The first method is to use the He Lenian "ana

The 1.stm32 uses a successive approximation analog digital approach, so what is successive approximation?The successive approximation is similar to the dichotomy, taking the 8-bit data as an example; When an analog amount is entered, the first half of the 8 digits, i.e. 1000 0000, is compared with the analog value, then becomes 1, less than the next bit; set the next one to 1, then compare, greater than 0, and less than the same. Until the two numbers are not large, stop comparing and output the

/* Songhan SN8P2711 2722 ADC initialization program and application instance */INIT_ADC: MOVA, #0XB2 // start the ADC circuit to enable AIN channel B0MOVADM, AMOVA, # 0XF0B0MOVADR,; fad = 1/2 Fcpu sets the ADC conversion rate; MOVA, # 0X1C for a pure analog input port; P4.2 3 4 for a simulated AD port B0MOVP4CON, a ret // --- application instance -----//*********

I use the ADC081SD chip, Cpol:cs is pulled to low power sclk is high, Cpol for 1,cs was pulled to low power sclk for 0 o'clock, Cpol for 0;The Cpha:cs is pulled to the low level after the first clock edge is 0, and the second clock along the acquisition data is 1.When the corresponding acquisition data bits of the clock rise are stable, the rising edge is collected, and the clock falling along the corresponding acquisition data bits are collected along the falling edge.As shown in the SCLK, the

(); Memset (frameBuffer, BLACK, 2 * WIDTH * HEIGHT);/* Clear screen */DrawCross (lcdCalibPoints [1]. x, lcdCalibPoints [1]. y, COLOR );TFT_DrawString (40,130, "Tap green marker ");P [1] = getTouchTapSample10bit (); Memset (frameBuffer, BLACK, 2 * WIDTH * HEIGHT);/* Clear screen */DrawCross (lcdCalibPoints [2]. x, lcdCalibPoints [2]. y, COLOR );TFT_DrawString (20,180, "Tap green marker ");P [2] = getTouchTapSample10bit (); SetCalibrationMatrix (POINT *) lcdCalibPoints,/* Display coordinates */

Each ADC module of stm32 can switch to different input channels and perform conversion through an internal analog multi-channel switch. Stm32 is particularly added to multiple group conversion modes. After the program is configured, It can automatically sample and convert multiple analog channels one by one. There are two ways to divide the conversion group: rule Channel group and injection Channel group. Generally, up to 16 channels can be arranged

= ADC_InitStructure.ADC_NbrOfChannel = ADC_Init(ADC1, ADC_RegularChannelConfig(ADC1,ADC_Channel_0,,ADC_SampleTime_239Cycles5); ADC_RegularChannelConfig(ADC1,ADC_Channel_1,,ADC_SampleTime_239Cycles5); ADC_RegularChannelConfig(ADC1,ADC_Channel_2,,ADC_SampleTime_239Cycles5); ADC_RegularChannelConfig(ADC1,ADC_Channel_10 , ADC_RegularChannelConfig(ADC1,ADC_Channel_Vrefint, ADC_InjectedSequencerLengthConfig(ADC1, ADC_InjectedChannelConfig(ADC1,ADC

); determines whether the adswitch is over.Ret = adcdat0 0x3ff;, the value after normal ADC conversion. That's it. It's easy? Okay. You can only say that. Then, makefile: obj-m :=adc.o Then create a makemod. The Code is as follows: make -C /home/eastmoon/work/linux2.6.28/ M=`pwd` modules Then, you only need source makemod to compile it into buzzer. Ko. OK, the driver is like this, and then the application #include Then makefile: CC =

1. Normal converson Mode) The Normal conversion mode (auto_pst = 0, xy_pst = 0) is used for general ADC conversion, such as measuring the battery voltage through ADC. 2. Independent x/y position conversion mode (separate x/y position Conversion Mode) The independent X-axis/Y-axis coordinate conversion mode includes the x-axis mode and Y-axis mode. To obtain the X and Y coordinates, you must first coordinate

From: http://bbs.ednchina.com/BLOG_ARTICLE_225912.HTM Each ADC module of stm32 can switch to different input channels and perform conversion through an internal analog multi-channel switch. Stm32 is particularly added to multiple group conversion modes. After the program is configured, It can automatically sample and convert multiple analog channels one by one. There are two ways to divide the conversion group: rule Channel group and injection Chan

[Csharp]/*************************************** **************************** Program name: Mega_ADK ADC** Parameter count: None** Function: Send the voltage value (mv) collected by AD through the serial port)** Note: The target board is Maga adk and the mcu is ATmega 2560.** Author: Zhao Lulu** Version: v1.0** Modification time: 2012.8.17**************************************** **************************/# Define adPin A0Void setup (){Serial. begin (

// ADC channel number definition # defineADC_Chanel0 (unsigned char) (0x00

Fortunately, the original idea of doing the question did not know when it would have formed this idea. It may have been a little more, so I naturally thought of using this method. There is no reason. Is there any idea? If you have a idea, you can

First look at this, music casually find a, not very nice [ Full Screen appreciation ] The production of this requires the acquisition of an audio spectrum, the audio spectrum into the data, this dongdong needs a software called

Test Instructions Given two strings, the first one contains 0, 1,. ; The second one contains 0, 1;Three operations are required: turn 0 into 1. Turns 0 or 1, swapping two numbers.Q, use the fewest operands to turn the first string into a second

/*****************************************//by Unreal Code//name: Read the on-chip temperature and through the serial port Display//Description: Take on-chip temperature sensor for the ad source, through the serial port on the PC display. Experiment

Placeholder 1/* weighted average filtering */2 static unsigned char COE [13] = {1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 }; 3 static unsigned int coesum = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13; 4 unsigned long temp = 0; 5 6 for (I = 0;