definitions.h

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// SPDX-License-Identifier: GPL-2.0-or-later
 
#pragma once
 
#include <QMetaType>
#include <QString>
#include <stdint.h>
 
#define HANTEK_GAIN_STEPS 8
#define HANTEK_CHANNEL_NUMBER 2
 
namespace Hantek {
enum class UsedChannels : uint8_t {
    USED_NONE,   
    USED_CH1,    
    USED_CH2,    
    USED_CH1CH2, 
};
 
#pragma pack( push, 1 )
 
// The strct reflects the offset layout in EEPROM
// All values are offset binariy bytes (0 -> 0x80)
// The 1st 32 bytes are already factory calibration values
// 16 byte offset at low speed:  CH0@20mV, CH1@20mV, CH0@50mV,...,CH1@5V
// 16 byte offset at high speed: CH0@20mV, CH1@20mV, CH0@50mV,...,CH1@5V
// The next 16 bytes are written by python calibration tool
// 16 byte gain: CH0@20mV, CH1@20mV, CH0@50mV,...,CH1@5V
// The next 32 bytes are an optional fractional part of offset (*250)
// 16 byte offset (ls) fractional part: CH0@20mV, CH1@20mV, CH0@50mV,...,CH1@5V
// 16 byte offset (hs) fractional part: CH0@20mV, CH1@20mV, CH0@50mV,...,CH1@5V
 
struct Steps {
    uint8_t step[ HANTEK_GAIN_STEPS ][ HANTEK_CHANNEL_NUMBER ];
};
 
struct Offsets {
    Steps ls;
    Steps hs;
};
 
struct CalibrationValues {
    Offsets off;
    Steps gain;
    Offsets fine;
};
 
#pragma pack( pop )
 
} // namespace Hantek