meta:
  id: es51922
  title: Cyrustek ES51922 Data Protocol
  file-extension: es51922

seq:
  - id: raw_range
    type: u1
  - id: raw_digit0
    type: u1
  - id: raw_digit1
    type: u1
  - id: raw_digit2
    type: u1
  - id: raw_digit3
    type: u1
  - id: raw_digit4
    type: u1
  - id: raw_func
    type: u1
  - id: raw_status
    type: u1
  - id: raw_option0
    type: u1
  - id: raw_option1
    type: u1
  - id: raw_option2
    type: u1
  - id: raw_option3
    type: u1
  - id: tail
    contents: [0xd, 0xa]

instances:
  status:
    type: status
  options:
    type: options
  digits:
    pos: 1
    size: 5
    process: xor(0x30)
  range:
    type:
      switch-on: (raw_range ^ 0x30) | ((raw_func ^ 0x30) << 4)
      cases:
        0x00: base_range('A', 1.0, 3, 'current')
        0x10: base_range('V', 1.0, 4, 'diode')
        0x20: base_range('Hz', 1.0, 2, 'frequency')
        0x21: base_range('Hz', 1.0, 1, 'frequency')
        0x22: base_range('kHz', 1000.0, 3, 'frequency')
        0x23: base_range('kHz', 1000.0, 2, 'frequency')
        0x24: base_range('MHz', 1000000.0, 4, 'frequency')
        0x25: base_range('MHz', 1000000.0, 3, 'frequency')
        0x26: base_range('MHz', 1000000.0, 2, 'frequency')
        0x30: base_range('Ω', 1.0, 2, 'resistance')
        0x31: base_range('kΩ', 1000.0, 4, 'resistance')
        0x32: base_range('kΩ', 1000.0, 3, 'resistance')
        0x33: base_range('kΩ', 1000.0, 2, 'resistance')
        0x34: base_range('MΩ', 1000000.0, 4, 'resistance')
        0x35: base_range('MΩ', 1000000.0, 3, 'resistance')
        0x36: base_range('MΩ', 1000000.0, 2, 'resistance')
        0x50: base_range('Ω', 1.0, 2, 'continuity')
        0x60: base_range('nF', 1e-9, 3, 'capacitance')
        0x61: base_range('nF', 1e-9, 2, 'capacitance')
        0x62: base_range('µF', 1e-6, 4, 'capacitance')
        0x63: base_range('µF', 1e-6, 3, 'capacitance')
        0x64: base_range('µF', 1e-6, 2, 'capacitance')
        0x65: base_range('mF', 1e-3, 4, 'capacitance')
        0x66: base_range('mF', 1e-3, 3, 'capacitance')
        0x67: base_range('mF', 1e-3, 2, 'capacitance')
        0x90: base_range('A', 1.0, 4, 'current')
        0x91: base_range('A', 1.0, 3, 'current')
        0x92: base_range('A', 1.0, 2, 'current')
        0x93: base_range('A', 1.0, 1, 'current')
        0x94: base_range('A', 1.0, 0, 'current')
        0xb0: base_range('V', 1.0, 4, 'voltage')
        0xb1: base_range('V', 1.0, 3, 'voltage')
        0xb2: base_range('V', 1.0, 2, 'voltage')
        0xb3: base_range('V', 1.0, 1, 'voltage')
        0xb4: base_range('mV', 1e-3, 2, 'voltage')
        0xd0: base_range('µA', 1e-6, 2, 'current')
        0xd1: base_range('µA', 1e-6, 1, 'current')
        0xe0: base_adp_range(adp_ranges::adp0.to_i)
        0xe1: base_adp_range(adp_ranges::adp1.to_i)
        0xe2: base_adp_range(adp_ranges::adp2.to_i)
        0xe3: base_adp_range(adp_ranges::adp3.to_i)
        0xe4: base_adp_range(adp_ranges::adp4.to_i)
        0xf0: base_range('mA', 1e-3, 3, 'current')
        0xf1: base_range('mA', 1e-3, 2, 'current')
  func:
    value: raw_func ^ 0x30
    enum: functions
  precision:
    value: >-
      range.as<base_range>.precision == 0 ? 1.0 :
      range.as<base_range>.precision == 1 ? 0.1 :
      range.as<base_range>.precision == 2 ? 0.01 :
      range.as<base_range>.precision == 3 ? 0.001 : 0.0001
  value:
    value: >-
      (
        ((raw_digit0 ^ 0x30) * 10000) +
        ((raw_digit1 ^ 0x30) * 1000) +
        ((raw_digit2 ^ 0x30) * 100) +
        ((raw_digit3 ^ 0x30) * 10) +
        (raw_digit4 ^ 0x30)
      ) * range.as<base_range>.multiplier * precision * status.sign_multiplier
    if: 'func != functions::temperature and func != functions::adp'
enums:
  adp_ranges:
    0: adp0
    1: adp1
    2: adp2
    3: adp3
    4: adp4
  functions:
    0: current_22a
    1: diode
    2: freq
    3: resistance
    4: temperature
    5: continuity
    6: capacitance
    9: current_manual
    11: voltage
    13: current_microamp
    14: adp
    15: current_milliamp

types:
  base_range:
    params:
      - id: unit
        type: str
        encoding: UTF-8
      - id: multiplier
        type: f4
      - id: precision
        type: u1
      - id: mode
        type: str
        encoding: UTF-8
    meta:
      xref:
        unit: unit
        precision: precision
        multiplier: multiplier
        mode: mode
  base_func:
    params:
      - id: base_unit
        type: str
        encoding: UTF-8
      - id: base_range
        type: str
        encoding: UTF-8
      - id: mode
        type: str
        encoding: UTF-8
    meta:
      xref:
        base_unit: base_unit
        base_range: base_range
        mode: mode
  base_adp_range:
    params:
      - id: adp_mode
        type: u1
        enum: adp_ranges
  status:
    instances:
      overload:
        value: '_parent.raw_status ^ 0x30 & 0 == 1'
      battery_low:
        value: '_parent.raw_status ^ 0x30 & 1 == 1'
      sign_multiplier:
        value: '_parent.raw_status ^ 0x30 & 2 == 1 ? -1 : 1'
      degrees:
        value: "_parent.raw_status ^ 0x30 & 3 == 1 ? 'C' : 'F'"
      underload:
        value: '_parent.raw_option1 ^ 0x30 & 2 == 1'
      operation:
        value: "overload ? 'overload' : underload ? 'underload' : 'normal'"
  options:
    instances:
      current_value:
        value: '_parent.raw_option0 ^ 0x30 & 0 == 1'
      relative:
        value: '_parent.raw_option0 ^ 0x30 & 1 == 1'
      minimum:
        value: '_parent.raw_option0 ^ 0x30 & 2 == 1'
      maximum:
        value: '_parent.raw_option0 ^ 0x30 & 3 == 1'
      peak_minimum:
        value: '_parent.raw_option1 ^ 0x30 & 1 == 1'
      peak_maximum:
        value: '_parent.raw_option1 ^ 0x30 & 2 == 1'
      vahz:
        value: '_parent.raw_option2 ^ 0x30 & 0 == 1'
      auto:
        value: '_parent.raw_option2 ^ 0x30 & 1 == 1'
      ac_mode:
        value: "_parent.raw_option2 ^ 0x30 & 2 == 1 ? 'current' : 'voltage'"
      dc_mode:
        value: "_parent.raw_option2 ^ 0x30 & 3 == 1 ? 'current' : 'voltage'"
      lpf:
        value: '_parent.raw_option3 ^ 0x30 & 0 == 1'
      hold:
        value: '_parent.raw_option3 ^ 0x30 & 1 == 1'
      vbar:
        value: '_parent.raw_option3 ^ 0x30 & 2 == 1'