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selcukc

Tiva C Series LaunchPad Based Digital Oscilloscope with Labview Interface

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TivaScope is an oscilloscope which works with Tiva Launchpad (http://www.ti.com/tool/ek-tm4c123gxl, only 12.99$) from Texas Instruments. It communicates with PC via USB port. Its maximum sampling frequency is 1MSa/s with 12bit resolution. The signal which is shown on screen was obtained from referance signal output with10KHz %30 Duty Cycle. It also supports Stellaris LM4F120 LaunchPad.
 
iconmain.jpg
 
Tutorials
https://youtu.be/B4GVoiZVIM4
https://youtu.be/O0G1Gm5h3fk
 
Specifications

  • Maximum sampling frequency is 1MSa/s with 12bit resolution.
  • It supports USB 2.0
  • Single channel input PE3(AN0)
  • Referance signal output with10KHz %30 Duty Cycle from PB6
  • Labview Interface

TI E2E

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The Tiva ADC, like most integrated ADCs in MCUs is not exactly the most accurate, actually most users report that the 3 LSB are useless.

Have you considered making this with a external ADC? Could even be a TivaScope boosterpack

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Have you considered making this with a external ADC? Could even be a TivaScope boosterpack

 

Why? Cost of external ADC board with Tiva will not be far from this 100 MS/s toy.

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Dear L.R.A, I don't have any problem with internal ADC, I tested it during 8 hours it works good. Actually I think it. Using the external ADC chips will provide to reach high resolutions and sampling rates. I have some ADC chips to do it, if I can find more free time, I will try on it. But the first aim is here that converting the Tiva LaunchPad to low cost scope so I did not use any extra component, only coding.

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