Simple program:
import visa
rm = visa.ResourceManager()
list=rm.list_resources()
print(list) # list[0] is RS-232 reference
my_instrument = rm.open_resource(list[0])
print(my_instrument.query('*IDN?'))
#it works fine until this point, asking for one line of text only.
print(my_instrument.query('CURVE?'))
#After this oscilloscope is sending lots of data (1000 digits formatted as strings).
I get:
In python 3.4
"VI_ERROR_TMO (-1073807339): Timeout expired before operation completed."
In python 3.6
VI_ERROR_ASRL_OVERRUN "An overrun error occurred during transfer. A character was not read from the hardware before the next character arrived.
As far as I know, pyVisa is reading too slow when compare to speed of data sending. Same procedure is working when I am using pyVisa/GPIB, or pySerial/COM.
How can I make it faster, or what can I do to get that data by pyVisa/COM?
