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Found 13 results

  1. Hello, I just purchased a Discovery 2 board and am trying to familiarize myself with it and WaveForms (win 10). When I plug the board's waveform generator (pins 1+ and 1-) into the board's scope (pins W1 and GND) and deliver a sin wave, I can view it in WaveForms. However, when I plug the Discovery waveform generator into my Tektronix oscilloscope, I cannot detect any waveform. Similarly, when I plug my Tektronix waveform generator into the Discovery 2 scope and apply a sinusoid, the Discovery 2 cannot measure any waveform. Does anyone know why the discovery 2 board is able to generate/read its own waveform, but it can neither generate/read a waveform that can be detected by other instruments? I have included an image of my wavegen and scope setup windows within WaveForms (when the Discovery 2 waveform generator and scope are connected). Thanks for any suggestions! -John
  2. When using the scope from the Waveforms IDE, I can't get a visual of Channel 2. (Channel 1 works fine) I've tried using multiple USB ports and other computers. When I run calibration for the oscilloscope I get the following error message: "Check the connections!! The measured voltage on Oscilloscope Channel 2 is between: 30.269009276 V and 30.275477712 V. But it should be around: 0 V. It might be that the Arbitrary Waveform Generator 1 Offset is not calibrated correctly." I don't think the waveform is the issue, it reads as expected on channel 1. I could use some help.
  3. Hi there folks, great to meet you. Recently the company i work bought an Analog Discovery 2 to work with, and all I can say is - This is a great instrument, although I am using very small amount of its power. I have noticed something that lost me 2 days of work to discover that the problem is not my communication but in the way that the data is read by the AD2. The setup is like this - I have two boards communicating over I2C to each other and I am monitoring the messages in the Protocol part of the Waveforms. When i am sending large packets with more than 5 bytes of data there are some errors appearing on the tool but the messages actually are all right. My guess is that the discretization frequency is too small so it is getting errors in messages (i have seen this too when I have used the logic analyzer part of the software, although the I2C speed is 100kHz, when the scan frequency is smaller than 400kHz the protocol is not decoded in the right way.) There is no way(as far as I have tried) to adjust the frequency in Protocol mode. I am uploading pictures, hope it gets clear. Another thing is that the buffer that it stores the information from the protocol is quite large and the tool(waveforms) starts to work slowly, maybe it will be good to be able to adjust the size and flush the buffer more frequently. I will be glad to here from you is there a way to fix this issues. Thanks in advance.
  4. Greetings, Is there a toolkit, etc. for use with the AD2 and Labview for I2C or SPI? I would like to monitor and simulate if possible. I have download and looked at both the Waveforms toolkit and AD2 toolkit, but did not immediately see this functionality. I'm guessing no such bundled library exits. Thank you Cheers, JMA
  5. Hi. I just got my Analog Discovery 2 in the mail today, so I decided to test it out with some basic functions in order to get the hang of it. Without the BNC adapter, my scope works fine. I hooked it up to the output from the waveform generator just to have something up and running. Works fine without the BNC adapter. Then I plugged in my BNC adapter and hooked up the probes. I clipped the positive lead to the power supply and the negative clip to ground. The scope then could not detect any noticeable voltage. It was hovering around 0V (due to noise). Just to see if it can detect it to anything I hooked it up to the discovery's power supply at 4V. Checked that with a multimeter to make sure it was putting out around the right voltage and it was. Still the probe couldn't detect anything. Checked hooking it up to an arduino's 5V power supply and ground. Nothing. I am thinking there could be an issue with my BNC adapter and/or probes. I would really like some assistance. Thank you. Best, Matt
  6. Hi folks, I'm currently hacking a 433Mhz temperature probe, and attempting to intercept the reading using a standard 433Mhz receiver, such as the Sparkfun RF Link Receiver. Using WaveForms (desktop) I can record the Logic Analyzer output, and can see the single fine. I'm currently in the process of parsing the bit stream. The signal is repeated every 59 seconds. However I need more samples, and the manual translation of the square wave to 0/1's is tedious and time consuming (and error prone). I'd like to create a script that will read the 'repeated' (not recorded, realtime) Logic1 data, look for the periodic transmission bursts, convert the encoded waves to a binary character stream (ex: "0101001010") and print it to the screen (or log to file). Is this approach possible, in the way I'm thinking of it? Or is there an easier/better way to approach it? Also, I haven't been able to find many Script samples around the Logic# object. I understand it is similar to the Scope# (for example), but still a closer sample wound be great. Any tips/suggestions? Thanks -John
  7. Hello All, I see that the data acquisition toolkit( MATLAB ) supports the original Discovery module. Has anyone tried the Discovery 2 with Matlab ? I am debating weather or not to get the toolkit. Thanks !
  8. Hello All, We currently have the Discovery 2 in lab and use Waveforms to collect data. Is there anyway I can build a UI( think a simple form, name , value pairs ) into waveform to capture meta data while collection a sequence of scans ? I would like to embed the data into the scan file header or maybe in a txt file that I can write into the directory where the data is being written. Thanks so much for your help ! PS: I see that Matlab Supports the first version of the card, but nothing announced for version 2 https://www.mathworks.com/hardware-support/digilent-analog-discovery.html
  9. Hi Guys, im realatively new to electronics and even newer to measurements! I've just got my discovery 2 and was hoping someone might be able to guide me with some general question and tips. Sorry if my questions sound stupid in advance very new!!! Firstly, measuring balanced connections? I know what's required to measure single ended audio connections but trying to work out how best to measure seeing have inverting and non inverting connections plus gnd? Can anyone provide some guidance on how to go about this? Assume I know nothing when it comes to oscilloscope and waveforms!! secondly, measuring THD of an audio circuit has anyone got any tips of how best to measure, configure and calculate, using waveform? i assume it's something around using spectrum analyzer with test tone and looking at the harmonic against the fundamental, but some guidance on how to configure, measure and calculate would be awesome! lastly, what should be the expected noisefloor of the discovery be inheritly? -80ish db?? any guidance would be appreciated thanks guys hype
  10. Hi, I recently purchased the Discovery 2 and the BNC adapter board (Pro kit). Could someone please clarify where the positive and negative connectors for the scope should be attached when monitoring an AC signal (+/- 12 V). Should the negative connector be attached to the negative rail? And when using the BNC adapter board should the negative connector be connected to ground (because the inputs are not differential)? I wanted to confirm the connections as I had a mishap and toasted my pcb's power supply whilst trying to use the waveform generator and the oscilloscope. Just trying to debug why that happened. I had the oscilloscope's negative connector connected to ground.
  11. When I connect and select the Discovery 2, all I get is an error. Nothing else is connected to the Discovery 2, so it need not be drawing much current anyway. My Dell Inspiron 15R has potent USB ports. Discovery 1 can run from USB ports just fine...what the heck is the problem with this thing? And when I use a 5V 1300mA supply, I get the same error!? Please advise...
  12. I have just received a Discovery 2 and tried to download the waveforms 2015 software. On the site for the download I get redirected to https://reference.digilentinc.com/waveforms3#newest and a message that firefox is unable to connect. Does anyone know of any other way to get these files? Does anyone else have trouble getting this download? Sean
  13. Which external power supply is compatible with the Analog Discovery 2 to deliver 700mA of current? There are at least 2 power supplies in the Accessories section, but neither mentions compatibility with the Analog Discovery 2 kit. It would be nice if the webmaster could add this item under the "Related Products" section for the Analog Discovery 2, so it would be easier for people to find it. Thank you for your time.