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About Liur1996

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  1. Hi @JColvin I have a labview program running on computer, so AD2 is just acting as a ADC to read the values and send them to the labview program the labview program is set up to take in 256 readings (or maybe more if it allowed) per cycle in a 50Hz cycle waveform. so I'm trying to find the maximum sampling rate that will allow continuous sampling and transfer without losses. I have read on site and pages where people claim that it can do 2MHz sampling with no loss, web link, and link forum. Also on the waveform software manual in the oscilloscope control section it also states the same th
  2. Hello I'm trying to find the maximum sampling speed that I can get for ADC on the analog discovery 2 FPGA? usb 2 maximum transfer is 480Mbit/s and in the Waveform software it says it can sample at about 1Msample/s, but I want to get a more accurate number. How can I test the system to find that number. What kind of information do I need? Kind regards Richard
  3. Hello all I just started using labview with analog discovery 2, I'm not familiar with graphical programming, is there a tutorial that teach people how to program the analog discovery 2 to perform tasks? I'm trying to control the analog discovery 2 to read analog input and convert to digital data and stream the output through usb into computer for signal processing. If there are no such material available, what can i read to in order for me to complete the program. Cheers
  4. Thank you, so I am unable to program the AD2 to lets say have the ADC digitize the input and store them into a specific register, and then retrieve it to be used in calculating equation. can the script editor in the waveform software allow me to do that? As for the labview what sort of control can i get over the AD2? is it going to be most data display or can i do something deeper like calculation and filters.
  5. This is more of a uni project exploration, we are trying to get the analog discovery 2 take in the analog signal into ADC and then process it through digital PLL, so an out of phase signal from mains can be changed to a in phase signal before inputted into the a device. the number of sample can increase to 128 or 256 per cycle, but 64 is just a starting point. we want to be able to correct the phase difference after 1 full cycle of sampling rather than a figure over longer interval as the device is used to correct the phase difference rather than creating a figure of the phase difference. our
  6. Hello all My question is whether the AD2 is programmable or has to be used with the software such as waveform and other to make it work. I need to use the ADC on it and process the signal through an averaging filter, down conversion and process the digitized signal through some equations, can these functions be added into AD2 so I can connect the AD2 on to the signal source and spit out the relevant data through usb to labview. Kind regards
  7. Sorry for the late reply. those was my first options to this problem, but I found people used lookup tables in their implementation rather than frequency division, maybe I just have it confused. My project is to build a mains impedance analyzer that measure the magnitude and phase of a three phase power system, with those information then calculate the voltage, current, phase, frequency and RoCoF of the power system. Here the supervisor wanted to use the PLL to perform tracking like @zygot and @[email protected], but my interpretation was tracking the signal only means the frequency di
  8. What I'm trying to accomplish is to vary the ADC sampling frequency according to the mains input frequency. my input frequency is 50Hz and want to get 64 samples for a start which would results in 3200Hz sampling frequency. Since main frequency are likely to vary from time to time, I'm looking for ways to vary the sampling frequency according to the input frequency. I have been suggested to use LUT, which will use around 400 LE or register as the frequency varies between 48-52 Hz at most in 0.01 increments due to electricity standard. I'm wondering if this is the best method or there are bette
  9. I'm working on a project that would require the use of VCO, but I'm wondering if it is possible to implement an NCO in Discovery 2. I have seen tutorial on other fpga where they create LUT to create the correction frequency of the sine waveform. But is it possible in Discovery 2 FPGA? I know the Discovery 2 has an arbitrary waveform generator but from online tutorials it is mostly used with the waveform software, is it possible to code it to work internally? I'm using Labview to code it as it is one of the specifications. Can someone point me in the right direction? Cheers