Initial support for Instrustar 205A/B

OpenHantek · Oct 14, 2023 · 59d7aa3 · 59d7aa3
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diff --git a/openhantek/res/firmware/isds205b-firmware.hex b/openhantek/res/firmware/isds205b-firmware.hex
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diff --git a/openhantek/res/firmwares.qrc b/openhantek/res/firmwares.qrc
@@ -5,5 +5,6 @@
         <file>firmware/dso6022bl-firmware.hex</file>
         <file>firmware/dds120-firmware.hex</file>
         <file>firmware/mdso-firmware.hex</file>
+        <file>firmware/isds205b-firmware.hex</file>
     </qresource>
 </RCC>
diff --git a/openhantek/src/hantekdso/models/modelISDS205b.cpp b/openhantek/src/hantekdso/models/modelISDS205b.cpp
@@ -0,0 +1,120 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "modelISDS205b.h"
+#include "hantekdsocontrol.h"
+#include "hantekprotocol/controlStructs.h"
+#include "usb/scopedevice.h"
+#include <QDebug>
+#include <QDir>
+#include <QSettings>
+
+#include "../res/firmware/dso602x_fw_version.h"
+
+
+#define VERBOSE 0
+
+using namespace Hantek;
+
+static ModelISDS205B modelInstance_isds205b;
+
+
+static void initSpecifications( Dso::ControlSpecification &specification ) {
+    // we drop 2K + 480 sample values due to unreliable start of stream
+    // 20000 samples at 100kS/s = 200 ms gives enough to fill
+    // the screen two times (for pre/post trigger) at 10ms/div = 100ms/screen
+    // SAMPLESIZE defined in hantekdsocontrol.h
+    // adapt accordingly in HantekDsoControl::convertRawDataToSamples()
+
+    // HW gain, voltage steps in V/div (ranges 20,50,100,200,500,1000,2000,5000 mV)
+
+    specification.gain = { { 10, 20e-3 }, { 10, 50e-3 }, { 10, 100e-3 }, { 5, 200e-3 },{ 2, 500e-3 }, { 1, 1.00 },   { 1, 2.00 },    { 1, 5.00 } };
+
+    // ID and actual gain:
+    // 1: 1.1
+    // 2: 2
+    // 5: 4.9
+    // 10: 16
+    // Full scale input == +- 5V according to instrustar.
+    // For low voltages a relay can be switched, so a 10x attenuator is bypassed. i.e. input at ADC +- 0.5V always
+
+    // Define the scaling between ADC sample values and real input voltage
+    // Everything is scaled on the full screen height (8 divs)
+    //                              ||WITH LV SWITCH||
+    // The voltage/div setting:      20m   50m  100m  200m  500m    1V    2V    5V
+    // Equivalent input voltage:   0.16V  0.4V  0.8V  1.6V    4V    8V   16V   40V
+    // Theoretical gain setting:     x16   x16   x16  x4.9    x2  x1.1  x1.1  x1.1
+    // mV / digit:                     ?     ?     ?     ?     ?     ?     ?     ?
+
+    specification.voltageScale[ 0 ] = { 1276, 1276,1276, 90, 37, 21.5, 21.5, 21.5 };
+    specification.voltageScale[ 1 ] = { 1276, 1276,1276, 90, 37, 21.5, 21.5, 21.5 };
+    // Gain and offset can be corrected by individual config values from EEPROM or file
+
+    // Possible raw sample rates with custom fw from https://github.com/Ho-Ro/Hantek6022API
+    // 20k, 40k, 50k, 64k, 100k, 200k, 400k, 500k, 1M, 2M, 3M, 4M, 5M, 6M, 8M, 10M, 12M, 15M, 16M, 24M, 30M (, 48M)
+    // 48M is unusable in 1 channel mode due to massive USB overrun
+    // 24M, 30M and 48M are unusable in 2 channel mode
+    // these unstable settings are disabled
+    // Lower effective sample rates < 10 MS/s use oversampling to increase the SNR
+
+    specification.samplerate.single.base = 1e6;
+    specification.samplerate.single.max = 30e6;
+    specification.samplerate.single.recordLengths = { UINT_MAX };
+    specification.samplerate.multi.base = 1e6;
+    specification.samplerate.multi.max = 15e6;
+    specification.samplerate.multi.recordLengths = { UINT_MAX };
+
+    specification.fixedSampleRates = {
+        // samplerate, sampleId, downsampling
+
+        { 100e3, 10, 1 },
+        { 200e3, 20, 1 },
+        { 500e3, 50, 1 },
+        { 1e6, 1, 1 }, 
+        { 2e6, 8, 4 },    //   4x downsampling from  8 MS/s
+        { 7e6, 24, 3 },   //   3x downsampling from 24 MS/s
+        { 4e6, 4, 1 }, 
+        { 8e6, 8, 1 },  
+        { 16e6, 16, 1 },  // no downsampling
+        { 24e6, 24, 1 },  // no downsampling
+        { 30e6, 30, 1 },  // no downsampling
+        { 48e6, 48, 1 }   // no downsampling
+    };
+
+    // Instrustar has AC Coupling option
+    specification.couplings = { Dso::Coupling::DC, Dso::Coupling::AC };
+    specification.hasACcoupling = true;
+
+    specification.triggerModes = {
+        Dso::TriggerMode::AUTO,
+        Dso::TriggerMode::NORMAL,
+        Dso::TriggerMode::SINGLE,
+        Dso::TriggerMode::ROLL,
+    };    
+    specification.fixedUSBinLength = 0;
+    //Use calibration steps supported by firmware 205b
+    specification.calfreqSteps = { 100,1000,10000,25000 };
+    specification.hasCalibrationEEPROM = false;
+
+}
+
+static void applyRequirements_( HantekDsoControl *dsoControl ) {
+    dsoControl->addCommand( new ControlSetGain_CH1() );    // 0xE0
+    dsoControl->addCommand( new ControlSetGain_CH2() );    // 0xE1
+    dsoControl->addCommand( new ControlSetSamplerate() );  // 0xE2
+    dsoControl->addCommand( new ControlStartSampling() );  // 0xE3
+    dsoControl->addCommand( new ControlSetNumChannels() ); // 0xE4
+    dsoControl->addCommand( new ControlSetCoupling() );    // 0xE5 (no effect w/o AC/DC HW mod)
+    dsoControl->addCommand( new ControlSetCalFreq() );     // 0xE6
+}
+
+
+// Instrustar ISDS20A/B
+//
+//                  VID/PID active  VID/PID no FW   FW ver          FW name    Scope name
+//                  |------------|  |------------|  |------------|  |-------|  |--------|
+ModelISDS205B::ModelISDS205B()
+    : DSOModel( ID, 0x1d50, 0x608e, 0xd4a2, 0x5661,  0x0005, "isds205b", "ISDS-205B", Dso::ControlSpecification( 2 ) ) {
+    initSpecifications( specification );
+}
+
+void ModelISDS205B::applyRequirements( HantekDsoControl *dsoControl ) const { applyRequirements_( dsoControl ); }
diff --git a/openhantek/src/hantekdso/models/modelISDS205b.h b/openhantek/src/hantekdso/models/modelISDS205b.h
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "dsomodel.h"
+
+class HantekDsoControl;
+using namespace Hantek;
+
+
+struct ModelISDS205B : public DSOModel {
+    static const int ID = 0x2050;
+    ModelISDS205B();
+    void applyRequirements( HantekDsoControl *dsoControl ) const override;
+};
diff --git a/utils/udev_rules/60-openhantek.rules b/utils/udev_rules/60-openhantek.rules
@@ -8,6 +8,10 @@ ENV{DEVTYPE}!="usb_device", GOTO="openhantek_rules_end"
 ATTRS{idVendor}=="04b4", ATTRS{idProduct}=="6022", TAG+="uaccess", TAG+="udev-acl", MODE="660", GROUP="plugdev"
 ATTRS{idVendor}=="04b5", ATTRS{idProduct}=="6022", TAG+="uaccess", TAG+="udev-acl", MODE="660", GROUP="plugdev"
 
+# Instrustar isds-205b, without FW, with FW
+ATTRS{idVendor}=="d4a2", ATTRS{idProduct}=="5661", TAG+="uaccess", TAG+="udev-acl", MODE="660", GROUP="plugdev"
+ATTRS{idVendor}=="1d50", ATTRS{idProduct}=="1d50", TAG+="uaccess", TAG+="udev-acl", MODE="660", GROUP="plugdev"
+
 # Hantek DSO-6022BL, without FW, with FW
 ATTRS{idVendor}=="04b4", ATTRS{idProduct}=="602a", TAG+="uaccess", TAG+="udev-acl", MODE="660", GROUP="plugdev"
 ATTRS{idVendor}=="04b5", ATTRS{idProduct}=="602a", TAG+="uaccess", TAG+="udev-acl", MODE="660", GROUP="plugdev"