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10 years, 11 months ago.
Read a SinWave
Hello, i need to read on labview a sinwave with 200kHfrequency, with the mbed.
Do you have an idea to realize this fact ?
2 Answers
10 years, 11 months ago.
You wil already need an external ADC, the internal one runs at 200kHz, so the maximum input frequency you can measure with that without undersampling is 100kHz. Connecting ADC to the mbed isn't too simple, but should be doable.
Then the question is if it needs to be streamed in real-time to the computer, which is not impossible but also far from trivial, or if you just need to buffer it and then send it slowly to the computer. If that is the case there is also the question how big that buffer should be.
10 years, 11 months ago.
Thank you for your answer Erik.
I tried to read a 100kH sinwave, but the result on labview is a series of Pics, i can't have a beautiful sinwave.
Maybe i haven't configure the ADC sample rate correctly..
With my 500kH sinwave, I will try to add an external ADC