Hi, there
I have a problem like a link below when I use the cn0540 with de10-nano. Similarly, The DS2(Power), DS1(fault), and DS4(CC) are on, but the iio-oscilloscope can collect the IEPE sensor data, I just wondered how to fix it about the DS1(fault) is on, or what situations can make that result, thanks.
I checked the value of some test points for cn0540, when the IEPE sensor isn’t connected:
LT3092 IN = 26.2V OUT = 25V SET = 25.2V
VIN = 25V
TP5 = 28.2V
TP9 = 3.65V
ADG5421 VDD = 26.0V、SW_CC =3.4、SW_IN=3.4、SW_FF=1.83
When the IEPE sensor is connected:
LT3092 IN = 26.2V OUT = 8.5V SET = 8.3V
VIN = 7.14V
TP5 = 28.5V
TP9 = 3.38V
ADG5421 VDD = 26.1V、SW_CC =3.3、SW_IN=3.3、SW_FF=1.85
The DS1(fault) is always on whatever the IEPE sensor is connected.
Reference link:
RE: CN0540/DE10-nano signal wrong
