Ⅰ, overviewThis article describes the more powerful ADC modules for the STM32 feature. ADC (Analog to Digital Converter) is analog to digital, and STM32 ADC module function is more, this article mainly describes " three channels Successive conversion (performs, Single-channel software Trigger) ".According to the author's experience, STM32 all series of Chip
Ⅰ, overviewThis article describes the more powerful ADC modules for the STM32 feature. ADC (Analog to Digital Converter) is analog to digital, and STM32 ADC module function is more, this article mainly describes " three channels successive conversion (performs, single channel Software Trigger)".According to the author's experience, STM32 all series of Chip
INCLUDES = Adds the advantage that we do not have to include KGN sub directories when using SIMPLE_TRANS.H in other directories;
Join KGN/SIMPLE_TRANS.O \ in OBJ_CC =.
Makefile Key code content:
INCLUDES = \
- I. \
I. \
-i/home/song/ns-allinone-2.35/tclcl-1.20-i/home/song/ns-allinone-2.35/otcl-1.14-i/home/song/ ns-allinone-2.35/include-i/home/song/ns-allinone-2.35/include-i/home/song/ns-allinone-2.35/include-i/usr/ Include/pcap \
-i./tcp-i./sctp-i./common-i./link-i./queue \
-i./
I. basic working principle of A/D Conversion
The process of converting the time-varying analog quantity into the number of pulsesDigitalizationAnd the key device for digitalization isADC.
ADC:Digital-to-analog converterConverts time and amplitude-continuous analog numbers into discrete numbers of time and amplitude. A/D conversion usually goes throughSampling,Persistence,QuantizationAndEncoding4 processes.
II. A/D conversion module of the cc2530
The ADC
Label:(i) a basic concept decibel (db): a amplitude unit defined by a logarithm. For voltage values, the db is given in 20log (VA/VB) and for the power value, given in 10log (PA/PB). DBC is a DB value relative to a carrier signal, and dbm is a DB value relative to 1mW. For dbm, the load resistor in the specification must be known (for example, 1mW to 50ω) to determine the equivalent voltage or current value. (ii) definition of static indicators 1. Quantization error (quantization error) The quan
article content:ADC three-channel successive conversion (performs, single-channel software trigger)This article tells relatively more knowledge points, if the first learning STM32 ADC conversion function, you can refer to my other relatively simple article:STM32F10X_ADC1 Single-channel single- Pass acquisitionFor more details on this article, please look down.Ⅱ, Case Engineering downloadThe author for beginners to provide routines are removed a lot o
interacts with memory through DMA. To be continued 1.
The ac97 interface or I2S or PCM Interface can connect the CPU and CODEC (wm9714/alc5620/alc5621), and configure the format: the PCM Interface must be configured with the sampling rate, number of sampling digits, number of channels, and transmission format. The I2S interface must be configured with the sampling rate, number of sampling digits, number of channels, and alignment mode. The ac97 interface is flexible, it can be considered that t
the advantages of differential ADC drivers?These drivers facilitate singleended-to-differential and differential-to-differential conversions,Common-mode level shifting, and amplification of differential signals.They also exhibit lower distortion and faster settling time than singleended drivers.How can a differential the VFB ADC driver differ from a single-ended amplifier?In addition to the usual inverting
ADC single channel continuous data acquisition, through the DMA transmission to the serial port to send to the host computer. The DMA transfer allows the data to bypass the CPU and the data does not need to enter or leave the SRAM. The DMA controller uses the system bus, directly transmits the data of the ADC data register to the serial port to send the information register, the serial port sends the data r
[GoRK3288] 6. TSADC operation method, gork32886.tsadcDownload the GoRK3288 open source library from https://github.com/tjcfeng/gork3288.Rockchip RK3288 has a lot of ADC, HS-ADC (High Speed ADC), TS-ADC (Temperature Sensor ADC ).The HS-AD
The achievable accuracy for systems and multiple ADCs depends directly on the reference voltages applied to the ADCs. Medical-ultrasound-imaging systems, for example, commonly include a large number of ADCs in the system ' s Beam-former elect Ronics, with the ADCs usually organized in groups of--- To obtain maximum beam accuracy, you must minimize errors in the ADC path. Poor accuracy of the reference voltages of the individual ADCs degrades the overa
digital correction, NI PXIE-5644R VST can meet the performance needs of research-level instruments with its incredibly small size. The faster test time and flexibility offered by user-programmable FPGAs makes NI pxie-5644r more suitable for RF characterization, validation and validation, and product testing.In addition to high performance and small size features, the most revolutionary feature of NI PXIE-5644R VST is the use of a user-programmable Xilinx Virtex-6 FPGA, which supports programmin
mode, reads 8 channel's A/D conversion value in the interrupt function, stores separately in the external Ram 1000h~1007h unit. The ADC0809 port address is 00f0h.
The program defines two pointer variables * ADC and * Adcdata, pointing respectively to the ADC0809 port address (00f0h) and the external Ram cell address (1000h~1007h)The channel number is fed by *adc=i, the ADC0809 is initiated for A/D conversi
need for a self-made embedded device that can read the bending frequency from the Bending Sensor and make an LED flash based on different frequency values.
Obviously, we have completed steps 2 and 3!
· Input: read data from the Bending Sensor.
· Output: LED.
However, we skipped step 1:
· In this example, we will draw the black box to the microprocessor of the device.
Let's continue,
Step 4:Besides input and output, do we have other system boundaries?
· The microprocessor does not care about w
under normal operation, you'll see a file being saved with sensor data values.
Plot the file data in Excel to demonstrate.
Suspend the producer task. The watchdog task should display a message and save relevant info to the SD card.
Let the system run for a while, and note the CPU usage in your text file.
Change the ADC sensor implementation
Modify the source code "adc.h" of by is not using the
ADS1232 and ADS1234: a full range of front-end solutions for electronic scales
[Date:]
Source: 21IC China Electronics network Author: Texas Instruments
[Font: large, medium, and small]
Both the ADS1232 and ADS1234 are bridge sensor ADC released by TI ). To better understand these ADC, let's first take a look at the target application: electronic scales. The application scope and quant
MIMO
Sample Size (ADC/DAC)
8 bit
Bit
BIT/14 bit
Bit
Sample Rate (ADC/DAC)
Msps
+ Msps
msps/128 Msps
61.44 Msps
Interface (Speed)
USB 2 HS (480 megabit)
USB 3 (5 gigabit)
USB 2 HS (480 megabit)
USB 3 (5 gigabit)
FPGA Logic Elements
[4]
40k
115k
25k
75k
150k
1:adc:analog-to-digital Converter, analog signal to digital signal, nature is generally analog signal, and SOC need digital signal, so communication between need ADC.2: Conversion principle:Take the example of successive approximation ad conversions:Here take 8 bits for example, and S5PV210SOC is optional 10bit, 12bit;(1) First issue "start signal" signal s. When S is from high to low, the "successive approximation register SAR" clear 0,DAC output vo=
If the Jetson TK1 audio is not available, you can enter the following command at the terminal and test again, you can use it. (Note: On the Jetson TK1 hardware, on the audio, above is the microphone, below is the handset).Amixer cset name= "Stereo ADC MIXL ADC2 Switch" 0amixer cset name= "Stereo ADC mixr ADC2 Switch" 0amixer cset name= "Int Mic Switch "0amixer cset name="
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