Siglent SDS2352X-E DSO programming guide

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Digital Oscilloscope Series

251

pl.figure(figsize=(7,5))

pl.plot(time_value,volt_value,markersize=2,label=u"Y-T")

pl.legend()

pl.grid()

pl.show()

if __name__=='__main__':

main()

Read Waveform Data of Digital Example

import visa

import pylab as pl

def get_char_bit(char,n):

return (char >> n) & 1

def main():

_rm = visa.ResourceManager()

sds = _rm.open_resource("USB0::0xF4EC::0xEE38::0123456789::INSTR")

sds.write("chdr off")

tdiv = sds.query("tdiv?")

sara = sds.query("di:sara?")

sara_unit = {'G':1E9,'M':1E6,'k':1E3}

for unit in sara_unit.keys():

if sara.find(unit)!=-1:

sara = sara.split(unit)

sara = float(sara[0])*sara_unit[unit]

break

sara = float(sara)

sds.timeout = 30000 #default value is 2000(2s)

sds.chunk_size = 20*1024*1024 #default value is 20*1024(20k bytes)

sds.write("d0:wf? dat2")

recv = list(sds.read_raw())[15:]

recv.pop()

volt_value = []

data =bytearray(recv)

for char in data:

for i in range(0,8):

volt_value.append(get_char_bit(char,i))

print(len(volt_value))

time_value = []

for idx in range(0,len(volt_value)):

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Siglent SDS2352X-E oscilloscope