ADC DMA problem

[gilles2399]

Posted on March 13, 2012 at 11:43

ADC DMA problem

[raptorhal2]

Posted on March 13, 2012 at 18:04

At the moment, I am assuming that clocks and GPIOs are correctly initialized.

I need a better description of the relationship between sampling trigger and square wave frequency. Is the sampling trigger frequency 1 MHz ? What is the square wave frequency ?  How are you sorting out the triple conversion results to reconstruct the square wave at the trigger frequency ?

A signal 1 V pp suggests the signal is sometimes negative. Do you really mean that the signal goes from 0.5 mV to 1 V ?

Cheers, Hal

[gilles2399]

Posted on March 19, 2012 at 13:36

Hello,

Excuse me for the late reply

I managed to fix the problem which is due to a little error on the clock configuration.

Thanks for your reply.