--- A/calibrate_6022.py	2020-03-24 11:38:55.000000000 +0100
+++ B/calibrate_6022.py	2020-04-04 10:53:10.171965492 +0200
@@ -89,12 +89,12 @@
 
 print("Setting up scope...")
 
-scope = Oscilloscope()
+scope = Oscilloscope(0x1d50,0x608e)
 scope.setup()
 scope.open_handle()
 
-if (not scope.is_device_firmware_present):
-    scope.flash_firmware()
+#if (not scope.is_device_firmware_present):
+#    scope.flash_firmware()
 
 scope.supports_single_channel = True
 
@@ -114,15 +114,16 @@
 # next 32 bytes are the fractional error (range -0.5 ... +0.5) of the offset values above,
 # 0x80 = 0, 0x80-125 = -0.5, 0x80+125 = +0.5
 #
-ee_calibration = bytearray( scope.get_calibration_values( 32 + 16 + 32 ) )
+#ee_calibration = bytearray( scope.get_calibration_values( 32 + 16 + 32 ) )
+ee_calibration = bytearray( 32 + 16 + 32 )
 
 
 # mV/div ranges
 V_div = ( 20, 50, 100, 200, 500, 1000, 2000, 5000 )
 # corresponding amplifier gain settings
-gains = ( 10, 10,  10,   5,   2,    1,    1,    1 )
+gains = ( 20, 20,  10,   5,   2,    1,    1,    1 )
 # available amplifier gains
-gainSteps = ( 10, 5, 2, 1 )
+gainSteps = ( 20, 10, 5, 2, 1 )
 
 # measure offset
 # apply 0 V and measure the ADC values
@@ -168,9 +169,9 @@
 
 if ( create_config ):
     # prepare config file
-    configfile = "modelDSO6022.conf"
+    configfile = "modelDDS120.conf"
     config = open( configfile, "w" )
-    config.write( ";OpenHantek calibration file for DSO6022\n;Created by tool 'calibrate.py'\n\n" )
+    config.write( ";OpenHantek calibration file for DDS120\n;Created by tool 'calibrate.py'\n\n" )
     config.write( "[offset]\n" )
 
 
@@ -212,7 +213,7 @@
 
     # theoretical gain error of 6022 front end due to nominal resistor values (e.g. 5.1 kOhm instead 5.0)
     # these values are considered also in OpenHantek6022
-    error = ( 1.00, 1.01, 0.99, 0.99 ) # gainSteps 10x, 5x, 2x, 1x
+    error = ( 1.60, 0.80, 0.77, 0.86, 0.83 ) # gainSteps 20x, 10x, 5x, 2x, 1x
 
     gain1 = {}
     gain2 = {}