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Author Topic: ADC speed  (Read 582 times)
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pazgal
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« on: February 04, 2013, 11:39:13 pm »
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Hello,

I would like to buy an arduino due to make a little oscilloscope. I read that the adc speed of the µC is 1Mech/s.
Is it possible to have realy this speed on 2 channels ?

Thanks for help
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Soroush
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« Reply #1 on: February 13, 2013, 01:39:15 pm »
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Hi,

Although the Due is supposed to give you 1Msps, when you go through the whole stack to make it work it actually margins at 25ksps. There is way (http://arduino.cc/forum/index.php/topic,6549.0.html) for the AVR MCU's to reach faster ADC's but since the Due is based on an ARM architecture, the same won't work. I'm reading the application note (http://www.atmel.com/Images/doc11106.pdf) to figure it out but I'd be happy to hear from you on whether or not you could reach a solution.

Someone has posted a similar lower level code in another thread (http://arduino.cc/forum/index.php/topic,137635.0.html).

Thanks,
Soroush
« Last Edit: February 13, 2013, 01:49:42 pm by Soroush » Logged

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