a10 adc

1. BackgroundThis experiment is based on stm32f429 core board and has profound meaning for understanding stm32cube use. Using DMA for ADC sampling, with the advantage of fast, greatly reduce CPU consumption, for data acquisition system has a great advantage, especially its single 2.4MSPS sampling speed, three-way combination can achieve amazing 7.2MSPS sampling speed, for general applications can be satisfied. 2.stm32cube Configuration 2.1 The project

High speed ADC Clock jitter solution The clock jitter of the high-speed ADC affects the SNR of the high-speed ADC, while the signal-to-noise ratio determines the effective range of the analog front-end input. Therefore, it is necessary to determine the effective input range of the analog front end, then determine the SNR that should be satisfied, and then deduce

This article was originally written by Guan Haitao. The original author has all rights reserved. For more information, see the source.As an industrial chip, ADC sampling is a very important peripheral. Stm32 integrates three 12-bit, 18-channel internal ADC, with a maximum speed of 1 microsecond. Combined with DMA, it can free up the CPU for better processing.Other logic functions on the

Recently participated in A10 load balancing equipment training and wrote basic configuration notes based on personal understanding. Cisco ACE modules have been used before, and the fundamentals are consistent. Note: If there is an understanding error please give the point, thank you. The notes are as follows: A10 Load Balancing Equipment foundation configuration Process ===============================

From: http://blog.csdn.net/allen6268198/article/details/12905425A10/A20 bootloader loading Process AnalysisNote: as the A10 and A20 in the loading bootloader process is basically consistent, the following only A20 narrative, but also applicable to A10. In addition, in the case of no need to distinguish between Cubieboard1 and CUBIEBOARD2, collectively referred to as Cubieboard, and now generally referred to

Embedded systems occupy an important position in the field of micro-control (temperature, humidity, pressure detection, four-axis aircraft), which are implemented by microprocessor CPUs (such as STM32) and sensors and controllers, and connect them so that they can communicate with each other properly. is the module to be sued in this section, ADC Analog-to-digital conversion peripherals. Let's start with the simplest experiment and learn more about th

ADC conversion is the input analog signal volume, the microcontroller converted to digital volume. Reading the number must wait for the conversion to complete, the completion of a channel reading is called the sampling period. Sampling period generally = conversion time + read time. The conversion time = sampling time + 12.5 clock cycles. The sampling time is the time you tell the STM32 sampling analog through the register, the longer the setting the

Read the pin voltage value from the ADC with the STM32, how to convert the data read back to the value of V???V (ADC) = Value (ADC) * V (ref)/4096(The Stm32 ADC is 12 bits, so the maximum ad Word is 4096) where V (ADC) is the calculated voltage value, and value (

/* ADC. H */# Define adc1_dr_address (u32) 0x4001244c)Void adc_configuration (void ); /* ADC. C */# Include "ADC. H"V16adc_convertedvalue; // This variable is used to store the ADC Conversion Result read by DMA. In the main function, extern v16adc_convertedvalue can use the converted result. /*

The registers of the ADC are read,int Adc_read (void){int result;#if adstart==0result = ADC. adcdat00x3ff;while (!) ( Adc. adccon (0x1{}#elif adstart==1while (!) ( Adc. adccon (0x1{}result = ADC. adcdat00x3ff;#endifreturn 3300/0x3ff*result;}#endif****************************

1. Lsb,least significant BitThe LSB is the weight of a bit at the lowest bit, and the ADC is a ruler, and the LSB is its smallest scale. lsb=vfs/(2^n), the VFS is full scale voltage,n is the resolution of the ADC (Resolution).2. Offset ErrorOffset error is often called Zero-scale error. Simply understood, for the ADC, the input analog signal, only offset (or over

The ADC in stm32x microcontrollers uses the SAR (successive approximation register) principle,By which the conversion are performed in several steps.The number of conversion steps is equal to the number of bits in the ADC converter.Each step was driven by the ADC clock.Each ADC is clock produces one bit from the result

This article is based on a week CC2541 notes summarySuitable for overview and quick index of knowledge--All Links:Intermediate Tutorial-osal Operating system \osal operating system-a preliminary study of experimental osal"Insert" sourceinsight-Engineering Establishment methodIntermediate Tutorial-osal Operating System (Osal System solution basic routines)Intermediate Tutorial-osal Operating system (learn more about-oled normal keys and 5-directional buttons-interrupts!!!) This system drive laye

//************************************** *************// To measure and control the temperature, pressure, flow, speed, displacement, and other physical quantities// The sensor converts the above physical quantity into an electrical signal that simulates the physical quantity, that is, a simulated electrical signal, and then passes through the module// The converter is converted to a digital volume and sent to the processor for processing.// Objective: To understand the use of

Android quanzhi A10 (2.3.4) Development 2 documentation details:Http://www.a10bbs.com/forum.php? MoD = viewthread tid = 504 extra = Generating image files Under the project directory android2.3.4, lichee, and tools, We have compiled two parts: Lichee and android2.3.4. Now we can package the image file. 1. CD android2.3.4 enter this directory; 2. Execute the packaging command: mkimg 3. The package is complete, Finally, we can find the

1. New 2013 interface 2, add multi-language mechanism, can be set according to the needs of language 3, et new chart read support 4, et new txt, CSV, PRN file read and write, support multiple coding 5, et new XML file Read and write 6, et new xlsx file encryption and decryption support 7, WPS added TXT file read and write, support multiple coding Repair 1, et write xlsx file lost part of AutoShape fill effect 2, unable to open file name contains backslashes 3. WPP inserts a specific ba

+-0.08 °C. Encapsulation: To-92, metal can, SOIC-8, to-220. The lm35d used in this article is the to-92 encapsulation. Circuit connection The lm35d is powered by 5 V voltage on the Arduino uno board, and the signal output end is connected to the A0 pin. Simple voltage reading and conversion The conversion is implemented using the Arduino ADC function. The relationship between the voltage and the ad sample value is as follows: Among them, vin is the

Measure the ambient temperature around the chip. The output voltage of the temperature sensor is proportional to the temperature. The obtained temperature is measured by ADC. Inside the chip, the temperature sensor is connected to the ch16 of adc1. If you do not use a sensor, you can set it to the powerdown mode to save power. Main features: Temperature measurement range:-45 ~ + 125 degrees Celsius Temperature Measurement Accuracy: ± 1. 5 degr

Basic usageImport PybADC = Pyb. ADC (Pin (' Y11 ')) # Create an analog object from a PINADC = Pyb. ADC (Pyb. PIN.BOARD.Y11)val = Adc.read () # read an analog valueADC = Pyb. Adcall (resolution) # Creale an Adcall objectval = Adc.read_channel (channel) # Read the given channelval = adc.read_core_temp () # Read MCU temperatureval = Adc.read_core_vbat () # Read MCU Vbatval = Adc.read_core_vref () # Read MCU Vr