DAC0 is not working anymore

Dear all,

We are working on Arduino Due Board where we are creating 2 sine wave on DAC0 and DAC1. It was working very well and sudenly DAC0 looks like it is down (V = 0 V). However when we upload the code, we see that the voltage value of DAC0 goes from 0V to max (3.7 V which is weird because it seems that the maximum value should be theorically be 2.7 V) and after the upload, no more signal.

Anyone has an idea?



To preserve your DACs, hook an 1K to 2K resistor in serie. DUE DACs are sensitive, specially DAC0, you may have burn this one. Never hook directly your DAC to a speaker.