oscilloscope preamplifier

, we have no way to go. Otherwise, we can only look at the oscilloscope in the corner! Skills other than technology are more important !! From ancient times to the present, the United States and Japan are all like this! [4] Make Friends of the social education community! Do not interact with engineers only, think that there is a common language, but more importantly, communicate with other people. If you want to be a boss or a senior manager one day,

BUG: A Part Of The programmer's life. They cannot leave each other and are not happy with each other. Maybe you have a wonderful life. Do you have any wonderful bugs? It has plagued me for almost two weeks. Let's just call it small A. Small A has never dared to face me, and she is escaping every day. Every time she passes by with it, she feels familiar with it, I also found that we are not familiar with it. Because of this, it can be proud for so long; and because of this, it can even get tired

; use ACM for voice compression and decompression; Use Winsock for network communication. The experimental program implements the basic functions of network voice transmission. The collection set and playback buffer in the program are of the same size, and the number is both 2. The experiment uses the ping-pong system. We have measured the relationship between the buffer size and the end-to-end latency in the Ethernet environment. The idea of end-to-end latency measurement is to run a program, i

technical master, but a general quality master! We often look down on people when we are in a company,He said, "I don't know anything. Why do I get so much money? Why do I get promoted !" This is a common example of engineer pedantic.Is 8051 awesome? People must have his skills, and you cannot.Do you think the boss has been operating for so many years? People may be good at management,Be good at understanding the boss's intentions, be good at department coordination, and so on. Therefore, you m

damage, can not be repaired, Another point is that your BIOS file must be consistent with your motherboard model, including the manufacturer and model, otherwise the refresh will often cause the phenomenon of not showing. Motherboard point does not light maintenance example Example 1. A pci1600-f motherboard is not lit. First of all, visual inspection, found that the Power control IC U24 (AIC1569) surface has burned traces, welding U24, check the peripheral circuit did not see abnormal. The b

parameters makes the code smaller, but the code loses some features, which is also a way to do it. Learning the impact of development boards Learn how to implement it Measuring measuring 1. The best instrument is an oscilloscope. 2. Test on the electrical start time, this is a very accurate way of testing. 3. It is very simple to write Gpio port and memory when the system starts. 4. Some oscilloscopes can afford it. 5. Usually you do not want to us

, short circuit. Next, use the oscilloscope (if not, only with a multimeter), measuring the power supply foot of the SD card seat. In general, the voltage value should be around 3.3V, if the difference is too large, may be a circuit error, or LDO power supply capacity is insufficient. If you confirm the above two steps, then the hardware is not a big problem. The next thing to confirm is the problem with the driver on the firmware. Generally speaking,

After reading the I2C official agreement document, take s3c2440 and EEPROM to verify it. Originally want to use s3c2440 SDA and SCL pin Gpio to simulate, but in the absence of an oscilloscope for a week, how can not come out, finally or give up. Even reference to Linux under the i2c-algo-bit.c and I2C-GPIO.C, Still not tuned out. If there is an oscilloscope, it may soon be possible to find the cause, and no

will have to also." ”3, see example Drive, Linux kernel driver, generally have a relatively simple example code, specifically, see the first step of the TXT document. With this simple example code, we further clarify how the drive works.4, good, ready to work to complete, here should formally start. Write it yourself? No, or secretly lazy, online to find ready-made, there is just your chip driver, really lucky, direct use, of course, often can not be used directly, to debug under the next line.

A requirement for a work item is to monitor the frequency of a certain gpio input square wave! Popular speaking is a most simple oscilloscope to measure the frequency of the square wave! But just the frequency of the square wave! The frequency range is 0~200hz, and the frequency square wave is not always 200HZ, most of the time it may have been 0 or a lower frequency square wave! At the same time to take into account that the square wave may have been

chip quality is not allowed, such as the condition does not allow the memory side of the chip to unload, to see if the problem can be solved, if not to replace the chip on the other side, until successful (so the welder is afraid to repair the phone's people can reach). Of course, conditional use of oscilloscope detection that will be more than half the effort, after this method, because the memory side of the chip is removed, so the memory is only o

computer card is not yet supported hot plug.Prevent static electricityComputer internal integrated chip is very sensitive to static electricity (CMOS chip can withstand electrostatic impulse voltage for 200v,dram, EPROM chip for 300v,ttl chip for 1000V), a little attention may cause integrated chip permanent damage, so in the plug all kinds of cards before, Be sure to put the electrostatic discharge on the hand, otherwise it is very possible to penetrate the integrated chip, especially COMs int

paint scraping clean, in the exposed wire place wax, and then with a needle down the lines to the candle, then the above is dripping silver nitrate solution. Then you will use a universal table to confirm whether the breakpoint is connected properly. Just like this one, the breakpoint is ready. Note that one of the company, do not be impatient, like the motherboard on some places on the line between the distance is very small, can not get a short circuit. (2). If the electrolytic capacitor, yo

Parameter update to complete the parameter setting. Given the common situation, the parameter settings are not memory, and each entry displays common default parameter values.-Do not support hot Plug and unplug, hot plug will report errors, it is recommended to close the serial port after the serial port Plug and unplug.Waveform display-Eight waveform display channels with different color representations-Waveforms can be dragged, enlarged, and scaled down-Frame number and frame rate display abo

I can't open the question summary 1. The boot line is not normal: with external power supply, observe the changes in Ammeter, if the ammeter is not responding, is generally the boot line disconnection or the power-on key bad; 2. Battery power supply circuit is not normal: through the battery-powered mode or external interface power supply mode for power supply, in order to distinguish the fault range and determine whether the electronic switch is normal; 3. Power IC is not normal: the control

nbs P;return ret; else return-eio , a strange question has a good explanation recently: after I2C configuration sensor, play music through Aplay without movement (no sound), but read codec through Snd_soc_read () ( wm8960) The value of each register is normal (and the same configuration as normal playback), with an oscilloscope measured codec Lrck pin, nothing (this should have clock output, because Codec is configured as Master mode).

oscilloscope! Skills other than technology are the more important skill!! From ancient to ancient, American Japan, all the same! [4] More friends who make social people! Instead of just interacting with engineers and thinking that there is a common language, it's more important to socialize with other people, and if you want to be a boss or top management one day, you're dealing with these people all day. Learn about their experiences, thinking habi

Today, when using 430 to communicate with the clock chip via the I²c interface, the clock chip always has no response (NACK). Use the oscilloscope to observe the signal waveform and find the sending slave address different from your own settings. After viewing the 430 User guide, it is found that there are deviations in the configuration understanding of the address. The clock chip datasheet is written on the address 0b1101000. Therefore, according t

output light signal. At present, IC vendors have provided integrated solutions for CMOS processes. d) Receiving circuit design Because this part is the traditional continuous mode of light receiving mode, the use of mature pin-tia devices and integrated amplifier IC technology scheme, this is no longer described. e) test Results All samples were tested using Agilent 86100A oscilloscope, MP1605 error meter and SDA6020 serial Data Analyzer. 4. Con

flash data bits are 8 bits, Ccs3setup retains the default configuration, and click Generate AIS to generate the. bin file. 3 Burn write NAND flash Connect jumper, configure boot Mode selection for NAND 8, connect to arm core in CCS DSP project (only need to connect to arm core when burning NAND flash), the following figure is after connecting arm core success: Left-click on the Texas Instruments xds100v2 USB emulator/arm9_0 (Suspended), clicking on the CCS menu bar Run, load, load program, l