First thank you for your quick reply.
By incoherent results, i mean that i did'nt find the expected voltage.
I was trying to do aqcuisition of 13/18V DC Electrical Signals.
on windows i find correct results when using the refrence picoscope software which certifes a valid input signal and the hardware (the picoscpe itself)
After that i tried to do the same thing under Linux using the ps3000a Linux-DSK and the test example PS3000Acon.c
I excatly followed the instrutions given in the refrence linux software. i compile it ,as required and start doing some tests as follow:
input signal : 13V DC (connected on input A) and 18V
input B , C, D not connected.
set voltage range "V" to 20V on the 4 inputs (A,B,C,D)
perform a capture of block using block Mode capture: "B"/streaming Mode: "S"
--with Block Mode "B": the results are far from 13V/18V, the maxVoltage are negatif and the minV are positif
---But when i use the Streaming Mode "S": i note a factor of 2( for 13V , i have ~6500 mV and for 18V i have ~9000mV)
I tried to push further and investigate this use case(streaming Mode) and found that the results of the input A changes if i desactivate the non used input B,C,D i.e: i have different results on input A when i desactivate "B" set voltage to 99", or/and "C" or/and "D"
Hence even the "2" factor i noted on the streaming mode becames obsolete.
Finally i want to ask you if it is possible to give us an image of the Linux virtual Machine that you used for the test and i will be so grateful because it's a emergency for me.?