diff options
Diffstat (limited to 'hardware')
| -rw-r--r-- | hardware/scope/__init__.py | 23 | ||||
| -rw-r--r-- | hardware/scope/sds1104x.py | 6 | ||||
| -rw-r--r-- | hardware/scpi.py | 63 |
3 files changed, 82 insertions, 10 deletions
diff --git a/hardware/scope/__init__.py b/hardware/scope/__init__.py index e6b6573..23462a7 100644 --- a/hardware/scope/__init__.py +++ b/hardware/scope/__init__.py @@ -2,21 +2,30 @@ Provide basic class to operate scope Created by Eugeniy E. Mikhailov 2021/11/29 """ -import scpi +from hardware.scpi import SCPIinstr -class Scope(scpi.SCPIinstr): - """ - Do not instantiate directly, use - rm = pyvisa.ResourceManager() - Scope(rm.open_resource('TCPIP::192.168.0.2::INSTR')) - """ +class Scope: # Minimal set of methods to be implemented by a scope. # Should work with minimal arguments list # but might be faster if parameters provided: less IO requests + def __init__(self): + self.numberOfChannels = 0 + def getTrace(self, chNum, availableNpnts=None, maxRequiredPoints=None): warnings.warn( 'this function is not implemented' ) +class ScopeSCPI(SCPIinstr, Scope): + """ + Do not instantiate directly, use + rm = pyvisa.ResourceManager() + ScopeSCPI(rm.open_resource('TCPIP::192.168.0.2::INSTR')) + """ + pass + def __init__(self, resource): + SCPIinstr.__init__(self, resource) + Scope.__init__(self) + from .sds1104x import SDS1104X diff --git a/hardware/scope/sds1104x.py b/hardware/scope/sds1104x.py index 53e945a..23ac1be 100644 --- a/hardware/scope/sds1104x.py +++ b/hardware/scope/sds1104x.py @@ -3,19 +3,19 @@ Provide basic class to operate scope Created by Eugeniy E. Mikhailov 2021/11/29 """ -from hardware.scope import Scope +from hardware.scope import ScopeSCPI from datatrace import DataTrace import re import numpy as np -class SDS1104X(Scope): +class SDS1104X(ScopeSCPI): """ Siglent SDS1104x scope """ vertDivOnScreen = 10 horizDivOnScreen = 14 - numberOfChannels = 4 def __init__(self, resource): super().__init__(resource) self.resource.read_termination='\n' + self.numberOfChannels = 4 self.maxRequiredPoints = 1000; # desired number of points per channel, can return twice more def response2numStr(self, strIn, firstSeparator=None, unit=None): diff --git a/hardware/scpi.py b/hardware/scpi.py new file mode 100644 index 0000000..279ef24 --- /dev/null +++ b/hardware/scpi.py @@ -0,0 +1,63 @@ +""" +provide basic class to operate SCPI capable instruments +""" + +class SCPIinstr: + """ Basic class which support SCPI commands """ + """ + Do not instantiate directly, use + rm = pyvisa.ResourceManager() + SCPIinstr(rm.open_resource('TCPIP::192.168.0.2::INSTR')) + """ + def __init__(self, resource): + self.resource = resource + + # convenience pyvisa functions + self.write = self.resource.write + self.read = self.resource.read + self.query = self.resource.query + self.read_bytes = self.resource.read_bytes + self.read_binary_values = self.resource.read_binary_values + self.query_binary_values = self.resource.query_binary_values + + @property + def idn(self): + return self.query("*IDN?") + + def clear_status(self): + self.write("*CLS") + + def set_event_status_enable(self): + self.write("*ESE") + + def query_event_status_enable(self): + self.query("*ESE?") + + def query_event_status_register(self): + self.query("*ESR?") + + def set_wait_until_finished(self): + self.query("*OPC") + + def wait_until_finished(self): + self.query("*OPC?") + + def reset(self): + self.write("*RST") + + def set_service_request_enable(self): + self.write("*SRE") + + def query_service_request_enable(self): + self.query("*SRE?") + + def query_status_byte(self): + self.query("*STB?") + + def self_test_result(self): + self.query("*TST?") + + def wait(self): + self.write("*WAI") + + |