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Found 8 results

  1. Hello. I have been using the Analog Discovery 1 (legacy version) as a portable oscilloscope and function generator. I am using the Wavegen as a function generator to test an analog front end (AFE) which includes an integrated instrumentation amplifier and an ADC (http://www.ti.com/tool/ADS1293EVM). Trying to characterise the performance of the AFE, I used the Analog Discovery's function generator to generate sine waves of different amplitudes (between 1mV and 100 mV pk-pk) and frequencies (between 40 and 200 Hz, in steps of 40 Hz). The gain of the instrumentation amplifier is fixed at 3.5
  2. I encountered a peculiar issue when using AWG2 of the Analog Discovery 2. Physical connections were as follows: 1+ to W2 1- to GND When AWG2 is set to generate a sine wave voltage <= 1.00V, the output seems to be a clipped version of a voltage referenced to +5V (USB +ve rail). At any voltage above that (>1.001), the output is fine. I'm using Waveforms 3.8.2 on a 64bit Win10 PC. I've attached a screen capture:
  3. Hi all, Most likely this question has already been answered, but I cannot find any info. Is it safe to feed the AWG of the Analog Discovery to the scope of the same device? can this somehow cause any damage to the AD2?
  4. """ DWF Python Example Author: Digilent, Inc. Revision: 2015/02/05 Requires: Python 2.7 Start synchronized the AWG outputs of multiple Analog Discovery devices. Connect the Trigger-1 pin of each device together. """ from ctypes import * import time import sys if sys.platform.startswith("win"): dwf = cdll.dwf elif sys.platform.startswith("darwin"): dwf = cdll.LoadLibrary("libdwf.dylib") else: dwf = cdll.LoadLibrary("libdwf.so") #print DWF version version = create_string_buffer(16) dwf.FDwfGetVersion(version) print "DWF Version: "+version
  5. Hi , while changing the frequency from WaveForms with Analog Discovery 2 the transition between frequencies is not a smooth, it forces the Wavegen to reset the start applying the new requested frequency. is it possible to have a smooth transition between frequencies for example while using the basic settings on WaveForms can I use the bar to set a new target frequency then the transition from the old running frequency to the new target one is controlled somehow like a small sweep to the new target frequency. hope that makes sense ..... regards
  6. In Waveforms 2015, is it possible to set up a wave in the AWG to be triggered by every other pulse in the scope? I'm currently trying to use a 10 Hz external pulse connected to the Analog Discovery's scope as the trigger for a 5 Hz waveform from the AWG, but I need to have the event trigger only once the 5 Hz waveform has finished one pulse. Effectively, I'm putting together a slower trigger for one device that's triggered from the AD's scope using a faster external pulse. It appears that Waveforms 2015 has some logic capabilities incorporated into the software, but as I don't have a back
  7. Hello All, I'm playing around with the "analogout_custom" C sample program that comes with the Waveforms SDK (/usr/share/digilent/waveforms/samples/c/analogout_custom.cpp). I've made some observations that don't align with my expectations. I'm hoping one (or more) of you could kindly offer some insight on what is happening. I'm running libdwf.so.3.4.7 on an Ubuntu 16.04 x86-64 machine. I have an Analog Discovery 1 and an Analog Discovery 2 wired such that ad1.aout1 --> ad2.ain1+ ad1.gnd --> ad2.ain1- I'm playing the waveform out through the Analog Discovery 1
  8. Hello, My question is about the output current of the AD2, AWG. I know the current Max. Output is 10mA, but, I can't find if that current is expressed in Irms or it is Ipeak. I need to know that, because I want to build a box with a potentiometer inside, in order to control the output amplitude in an analogic fashion, setting the AWG out (sinewave) to 10Vpp (5Vp or 3.53Vrms) and set the potentiometer to taste to achieve the voltage needed. Trying to figure out what potentiometer I should use, doing the math tells me that a 50ohm pot is way too low to load the AWG output, taki