Go Down

Topic: ADC speed (Read 1 time) previous topic - next topic

pazgal

Hello,

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

Thanks for help

Soroush

#1
Feb 13, 2013, 07:39 pm Last Edit: Feb 13, 2013, 07:49 pm by Soroush Reason: 1
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

Go Up