Hello,
I'm using DAC output to generate 170mV, but when I look the signal on scope I can see a lot of noise (see attached), do you have any idea of the origin of the noise ?
I tried to connect my scope to GND and AGND, and with two different scope, the problem is the same.
Here is my code :
analogWriteResolution(12);
analogWrite(A14, 211);
I tried with a lower resolution and higher voltage and the problem is the same.
I have welded a piece of metal on the A14 pin, and maybe the soldering iron was too hot, do you think it could be the cause ?
Thank you for your help.
I'm using DAC output to generate 170mV, but when I look the signal on scope I can see a lot of noise (see attached), do you have any idea of the origin of the noise ?
I tried to connect my scope to GND and AGND, and with two different scope, the problem is the same.
Here is my code :
analogWriteResolution(12);
analogWrite(A14, 211);
I tried with a lower resolution and higher voltage and the problem is the same.
I have welded a piece of metal on the A14 pin, and maybe the soldering iron was too hot, do you think it could be the cause ?
Thank you for your help.