iio oscilloscope

1. Helios: scalable mobile background framework Helios is an open-source framework that provides effective background services for IOS. It integrates payment and Passbook for data synchronization and message sending in-app. In just a few minutes, developers can get the response from the client/server program and run it without any integration functions. Helios is a cluster of mobile background components-mixed and matched to meet your specific needs for applications. By establishing interfaces

With the development of HTML5, more and more HTML5-based Web development frameworks are emerging. In today's article, we will introduce iio Engine, it is an open-source web framework for creating HTML5 applications.The entire framework is very lightweight, only 45 KB in size, and is integrated with the debug system and supported across platforms.Does not rely on any third-party class library, can support Box2D, with complete documentation support. Sup

new physical layer verification SolutionIn view of the challenges in the test of MB-OFDM system, the company proposed a verification test scheme: In the receiver, using the wide band receiver-oscilloscope in the universal instrument as the signal collection equipment, with specially designed for the MB-OFDM signaling demodulation software TDSUWBWiMedia V2 for Signal Analysis; transmitter, a band can use the latest AWG7102 directly generate, the signa

in the process of software height, we also need to check whether the expected signal level occurs on the chip. For example, when writing a driver, we need to write an I/O port to operate the peripheral chip. When writing the corresponding I/O port, we know that the chip selection signal of the corresponding chip should be effective. Sometimes, we need to verify whether it happened as expected, which requires an oscilloscope. Generally, an

refer to the use of a digital oscilloscope ppt 2015-11-22 21:45:42Note the following points when using:1, set the input signal coupling mode , generally there are 3 kinds of coupling mode, AC (AC coupling), DC (DC coupling), GND (ground). As the first part of the oscilloscope structure (red box on the left)The actual output waveform corresponding to the selection of three coupling modes is posted below2, so

a series of digital signals accumulated on the oscilloscope , the shape of the image is similar to the eye, it is called eye diagram.When using the afterglow oscilloscope to observe the transmitted data signal, the time signal of the measured system is used to control the scanning of the oscilloscope by external triggering or external synchronization, because th

accurately determine whether the code changed by developers affects other functions, the program can only be tested again. However, through reverse tracing, the tester clearly sees the test case table affected by the changed code, and through the cumulative coverage technology, this greatly shortens the regression testing time. ※Shanghai zero one assembly Information Technology Co., Ltd. has a patent for "a test device and method based on case and source code bidirectional traceability ". Real

built-in metering table was a very good tool, however, when you make movies and TV series that are relatively cautious about program production, the reflection metering table may cause a deviation in the exposure volume. Although Sony's camera has improved, there are different types of sensitive parts in the digital camera, allowing users to select. Users can select a small block in the center of the screen, which can be the lower half, the upper half or the whole screen for measurement and pro

DAC0832First, the use of software delay method to achieve sawtooth wave, square wave, triangular waves, trapezoidal wave.1.1 Time delay method, 16 times Sawtooth Wave, highest point -5v ;0832 ua-oscilloscope observation delay method ; 0832cs280h~287h ; Ua=-uxef/256*n; ub=-uxef/256*n-5 Data SEGMENT Data ENDS STACK1 SEGMENT PARA STACK dw 20H DUP (0) STACK1 ENDS CODE SEGMENT assume cs:code, Ds:data, Ss:stack1 START: MOV AX, DATA mov DS, AX

Processing Program and determines that the event type is a data sending event based on the bo Bit, it calls the GPIB data sending program and sends the remaining data in the buffer zone to the GPIB bus in sequence. 3. Running status and Result The design of the RS232-1 GUI controller in this article has been successfully used in the connection between the computer and the tds210 oscilloscope. Figure 6 shows the display interface of the Computer Super

The development of mobile development technology has given rise to an increasing number of development platforms and frameworks. By using the development platform and framework, developers can greatly shorten the development cycle and improve application quality. However, for an application development technology, the quality and richness of the application framework determine the overall quality of the application to a certain extent. Therefore, selecting a high-quality development framework is

_ cnt_rinsn 'function:Drivers/staging/comedi/drivers/vmk80xx. c: 995: 37: Warning: 'reg [0] 'In this function may not be initialized before use [-Wuninitialized]Drivers/staging/iio/industrialio-core.c: In the function 'iio _ device_add_event_sysfs.isra.3:Drivers/staging/iio/industrialio-core.c: 925: 7: Warning: 'mask' in this function may not be initialized befo

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On the basis of the previous note, complete a simple ADC sampling experiment.The first step: preparation of knowledge1, first look at the Bb_black ADC pin position. Is the distribution of the analog input ports of the bb_black.There are three important messages to note on this chart:(1) Number of analog input ports: ARM chip A total of 8 ADC channels, the Bb_black is led out of 7 pins, ain0~6;(2) voltage range of analog input port: 0~1.8v;(3) Number of bits converted by ADC: 12 bits;2, with the

. c: In the 'cnic _ cm_open 'function:Drivers/net/cnic. c: 4047: 2: Warning: the comparison will always evaluate as 'true' for the address of 'cm _ ulp_ops 'will never be NULL [-Waddress]Drivers/net/cnic. c: In the 'cnic _ start_bnx2_hw 'function:Drivers/net/cnic. c: 4556: 1: warning: the stack frame contains 1168 bytes, exceeding 1024 bytes [-Wframe-larger-than =]Drivers/scsi/aic94xx/aic94xx_sds.c: 597: 21: Warning: 'offs' in this function may not be initialized before use [-Wuninitialized]Driv

! ", M_iuserno, nerrorcode );M_ifree = 1;Close ();M_hsocket = invalid_socket;Writemsgfile ("talk session was closed! Can't send message! ", 99 );Casyncsocket: onclose (nerrorcode );} Int cmsnuser: writemsgfile (const char * ainmsg, int iio){Char altmp1 [2048];Int ilbytes = strlen (ainmsg );File * FP;Char fname1 [300];Int Ilio = iio;Memset (altmp1, 0x00, sizeof (altmp1 ));If (

) relationship, I²c Device selection/topology, interface device/line order definition, LED size/color/drive, heatsink, fan, JTAG, power topology/timing/circuit, etc.For DVT, the requirements are simple and complex: what interface on the board, chip, main device, circuit, it is necessary to test what, especially in the case of the Board normal operation of the power/voltage/ripple/timing, business interface of the eye Diagram/template, the internal data bus signal integrity and timing (such as Mi

chips. When debugging a driver, in addition to fully understanding the data sheet of the chip, and in the process of software height, we also need to see whether the signal level we expect to occur on the chip. For example, when we write the driver, we need to write the I/O port to operate the peripheral chip, when writing the corresponding I/O port, we know that the corresponding chip signal should be valid, sometimes we need to verify whether the expected occurrence, which requires an

example, the test process of the key module leakage analysis, test adequacy measurement, code static quality analysis and collapse of the white box-level capture and analysis. Suppose you have doubts about the test results. You can use the client's code coverage visualization feature. Direct validation of related results.In addition, all the data of the nebula test can be traversed in the version number. All of the data analysis results specifically consider the aggregation requirements of the

The power ripple index of the DC/DC module is an important parameter. A clean power supply is a prerequisite for the stable operation of the digital circuit and an important guarantee for the parameters of the simulator. To determine the power quality, the Output Ripple of the DC/DC module must be measured. However, the ripple value measured by many people is usually hundreds of music videos or even hundreds of music videos, which is far greater than the maximum ripple value provided by the devi