baseband generating script update

added support for UTF-8 encoded text

SP5WWP/grc/simple_loopback.grc

@@ -0,0 +1,132 @@
+options:
+  parameters:
+    author: sp5wwp
+    catch_exceptions: 'True'
+    category: '[GRC Hier Blocks]'
+    cmake_opt: ''
+    comment: ''
+    copyright: ''
+    description: ''
+    gen_cmake: 'On'
+    gen_linking: dynamic
+    generate_options: qt_gui
+    hier_block_src_path: '.:'
+    id: simple_loopback
+    max_nouts: '0'
+    output_language: python
+    placement: (0,0)
+    qt_qss_theme: ''
+    realtime_scheduling: ''
+    run: 'True'
+    run_command: '{python} -u {filename}'
+    run_options: prompt
+    sizing_mode: fixed
+    thread_safe_setters: ''
+    title: Not titled yet
+    window_size: (1000,1000)
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [8, 8]
+    rotation: 0
+    state: enabled
+
+blocks:
+- name: samp_rate
+  id: variable
+  parameters:
+    comment: ''
+    value: '48000'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [184, 12]
+    rotation: 0
+    state: enabled
+- name: blocks_file_sink_0
+  id: blocks_file_sink
+  parameters:
+    affinity: ''
+    alias: ''
+    append: 'False'
+    comment: ''
+    file: ../payload.bin
+    type: byte
+    unbuffered: 'False'
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [528, 204.0]
+    rotation: 0
+    state: true
+- name: blocks_vector_source_x_0
+  id: blocks_vector_source_x
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    repeat: 'True'
+    tags: '[]'
+    type: byte
+    vector: (0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15)
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [8, 204.0]
+    rotation: 0
+    state: enabled
+- name: m17_m17_coder_0
+  id: m17_m17_coder
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    debug: 'False'
+    dst_id: ALL
+    maxoutbuf: '0'
+    meta: helloworld
+    minoutbuf: '0'
+    src_id: AB1CDE
+    type: '5'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [200, 188.0]
+    rotation: 0
+    state: enabled
+- name: m17_m17_decoder_0
+  id: m17_m17_decoder
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    debug_ctrl: 'False'
+    debug_data: 'False'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    threshold: '0.9'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [360, 204.0]
+    rotation: 0
+    state: enabled
+
+connections:
+- [blocks_vector_source_x_0, '0', m17_m17_coder_0, '0']
+- [m17_m17_coder_0, '0', m17_m17_decoder_0, '0']
+- [m17_m17_decoder_0, '0', blocks_file_sink_0, '0']
+
+metadata:
+  file_format: 1
+  grc_version: 3.10.7.0

SP5WWP/grc/simple_rx.grc

@@ -0,0 +1,838 @@
+options:
+  parameters:
+    author: sp5wwp
+    catch_exceptions: 'True'
+    category: '[GRC Hier Blocks]'
+    cmake_opt: ''
+    comment: ''
+    copyright: ''
+    description: ''
+    gen_cmake: 'On'
+    gen_linking: dynamic
+    generate_options: qt_gui
+    hier_block_src_path: '.:'
+    id: simple_rx
+    max_nouts: '0'
+    output_language: python
+    placement: (0,0)
+    qt_qss_theme: ''
+    realtime_scheduling: ''
+    run: 'True'
+    run_command: '{python} -u {filename}'
+    run_options: prompt
+    sizing_mode: fixed
+    thread_safe_setters: ''
+    title: Simple M17 receiver
+    window_size: (1000,1000)
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [8, 8]
+    rotation: 0
+    state: enabled
+
+blocks:
+- name: ppm
+  id: variable_qtgui_range
+  parameters:
+    comment: ''
+    gui_hint: ''
+    label: ppm
+    min_len: '200'
+    orient: QtCore.Qt.Horizontal
+    rangeType: float
+    start: '-10'
+    step: '0.1'
+    stop: '10'
+    value: '0'
+    widget: counter_slider
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [384, 12.0]
+    rotation: 0
+    state: true
+- name: rf_gain
+  id: variable_qtgui_range
+  parameters:
+    comment: ''
+    gui_hint: ''
+    label: RF gain
+    min_len: '200'
+    orient: QtCore.Qt.Horizontal
+    rangeType: float
+    start: '0'
+    step: '1'
+    stop: '80'
+    value: '20'
+    widget: counter_slider
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [512, 12.0]
+    rotation: 0
+    state: true
+- name: samp_rate
+  id: variable
+  parameters:
+    comment: ''
+    value: '48000'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [184, 12.0]
+    rotation: 0
+    state: enabled
+- name: analog_quadrature_demod_cf_0
+  id: analog_quadrature_demod_cf
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    gain: samp_rate/(2.0*math.pi*800.0)
+    maxoutbuf: '0'
+    minoutbuf: '0'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [400, 236.0]
+    rotation: 0
+    state: enabled
+- name: audio_sink_0
+  id: audio_sink
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    device_name: ''
+    num_inputs: '1'
+    ok_to_block: 'True'
+    samp_rate: samp_rate
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1736, 244.0]
+    rotation: 0
+    state: disabled
+- name: blocks_file_sink_0
+  id: blocks_file_sink
+  parameters:
+    affinity: ''
+    alias: ''
+    append: 'False'
+    comment: ''
+    file: ../payload.bin
+    type: byte
+    unbuffered: 'False'
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1352, 300.0]
+    rotation: 0
+    state: disabled
+- name: blocks_file_sink_0_0
+  id: blocks_file_sink
+  parameters:
+    affinity: ''
+    alias: ''
+    append: 'False'
+    comment: ''
+    file: ../../../symb_fifo
+    type: float
+    unbuffered: 'False'
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1352, 388.0]
+    rotation: 0
+    state: enabled
+- name: blocks_moving_average_xx_0
+  id: blocks_moving_average_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    length: int(0.1*samp_rate)
+    max_iter: '4000'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    scale: 1/int(0.1*samp_rate)
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [496, 380.0]
+    rotation: 0
+    state: true
+- name: blocks_null_sink_0
+  id: blocks_null_sink
+  parameters:
+    affinity: ''
+    alias: ''
+    bus_structure_sink: '[[0,],]'
+    comment: ''
+    num_inputs: '1'
+    type: byte
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1416, 208.0]
+    rotation: 0
+    state: disabled
+- name: blocks_packed_to_unpacked_xx_0
+  id: blocks_packed_to_unpacked_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    bits_per_chunk: '1'
+    comment: ''
+    endianness: gr.GR_MSB_FIRST
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_ports: '1'
+    type: byte
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1416, 68.0]
+    rotation: 0
+    state: disabled
+- name: blocks_short_to_float_0
+  id: blocks_short_to_float
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    scale: '32768.0'
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1624, 140.0]
+    rotation: 0
+    state: disabled
+- name: blocks_stream_to_vector_0
+  id: blocks_stream_to_vector
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_items: '64'
+    type: byte
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1600, 80.0]
+    rotation: 0
+    state: disabled
+- name: blocks_sub_xx_0
+  id: blocks_sub_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_inputs: '2'
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [616, 240.0]
+    rotation: 0
+    state: true
+- name: blocks_vector_source_x_0
+  id: blocks_vector_source_x
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    repeat: 'True'
+    tags: '[]'
+    type: byte
+    vector: (0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15)
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [744, 388.0]
+    rotation: 0
+    state: disabled
+- name: digital_symbol_sync_xx_0
+  id: digital_symbol_sync_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    constellation: digital.constellation_bpsk().base()
+    damping: '1.0'
+    loop_bw: '0.0045'
+    max_dev: '4.5'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    nfilters: '128'
+    osps: '1'
+    pfb_mf_taps: '[]'
+    resamp_type: digital.IR_MMSE_8TAP
+    sps: '10'
+    ted_gain: '1.0'
+    ted_type: digital.TED_GARDNER
+    type: ff
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [928, 196.0]
+    rotation: 0
+    state: enabled
+- name: iio_pluto_source_0
+  id: iio_pluto_source
+  parameters:
+    affinity: ''
+    alias: ''
+    bandwidth: samp_rate*16
+    bbdc: 'True'
+    buffer_size: '32768'
+    comment: ''
+    filter: ''
+    filter_source: '''Auto'''
+    fpass: '0'
+    frequency: int(433475000*(1+ppm*1e-6))
+    fstop: '0'
+    gain1: '''manual'''
+    len_tag_key: packet_len
+    manual_gain1: rf_gain
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    quadrature: 'True'
+    rfdc: 'True'
+    samplerate: samp_rate*16
+    type: fc32
+    uri: ''
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [16, 156.0]
+    rotation: 0
+    state: disabled
+- name: import_0
+  id: import
+  parameters:
+    alias: ''
+    comment: ''
+    imports: import math
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [280, 12.0]
+    rotation: 0
+    state: true
+- name: m17_m17_coder_0
+  id: m17_m17_coder
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    debug: 'False'
+    dst_id: ALL
+    maxoutbuf: '0'
+    meta: helloworld
+    minoutbuf: '0'
+    src_id: AB1CDE
+    type: '5'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [936, 372.0]
+    rotation: 0
+    state: disabled
+- name: m17_m17_decoder_0
+  id: m17_m17_decoder
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    debug_ctrl: 'False'
+    debug_data: 'True'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    threshold: '0.98'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1224, 188.0]
+    rotation: 0
+    state: disabled
+- name: qtgui_eye_sink_x_0
+  id: qtgui_eye_sink_x
+  parameters:
+    affinity: ''
+    alias: ''
+    alpha1: '1.0'
+    alpha10: '1.0'
+    alpha2: '1.0'
+    alpha3: '1.0'
+    alpha4: '1.0'
+    alpha5: '1.0'
+    alpha6: '1.0'
+    alpha7: '1.0'
+    alpha8: '1.0'
+    alpha9: '1.0'
+    autoscale: 'False'
+    axislabels: 'True'
+    color1: blue
+    color10: blue
+    color2: blue
+    color3: blue
+    color4: blue
+    color5: blue
+    color6: blue
+    color7: blue
+    color8: blue
+    color9: blue
+    comment: ''
+    ctrlpanel: 'False'
+    entags: 'False'
+    grid: 'True'
+    gui_hint: ''
+    label1: M17 baseband
+    label10: Signal 10
+    label2: Signal 2
+    label3: Signal 3
+    label4: Signal 4
+    label5: Signal 5
+    label6: Signal 6
+    label7: Signal 7
+    label8: Signal 8
+    label9: Signal 9
+    legend: 'True'
+    marker1: '-1'
+    marker10: '-1'
+    marker2: '-1'
+    marker3: '-1'
+    marker4: '-1'
+    marker5: '-1'
+    marker6: '-1'
+    marker7: '-1'
+    marker8: '-1'
+    marker9: '-1'
+    nconnections: '1'
+    samp_per_symbol: '10'
+    size: int(samp_rate/10)
+    srate: samp_rate
+    style1: '1'
+    style10: '1'
+    style2: '1'
+    style3: '1'
+    style4: '1'
+    style5: '1'
+    style6: '1'
+    style7: '1'
+    style8: '1'
+    style9: '1'
+    tr_chan: '0'
+    tr_delay: '0'
+    tr_level: '0.0'
+    tr_mode: qtgui.TRIG_MODE_FREE
+    tr_slope: qtgui.TRIG_SLOPE_POS
+    tr_tag: '""'
+    type: float
+    update_time: '0.10'
+    width1: '1'
+    width10: '1'
+    width2: '1'
+    width3: '1'
+    width4: '1'
+    width5: '1'
+    width6: '1'
+    width7: '1'
+    width8: '1'
+    width9: '1'
+    ylabel: Amplitude
+    ymax: '5'
+    ymin: '-5'
+    yunit: '""'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [936, 92.0]
+    rotation: 0
+    state: enabled
+- name: qtgui_time_sink_x_0
+  id: qtgui_time_sink_x
+  parameters:
+    affinity: ''
+    alias: ''
+    alpha1: '1.0'
+    alpha10: '1.0'
+    alpha2: '1.0'
+    alpha3: '1.0'
+    alpha4: '1.0'
+    alpha5: '1.0'
+    alpha6: '1.0'
+    alpha7: '1.0'
+    alpha8: '1.0'
+    alpha9: '1.0'
+    autoscale: 'False'
+    axislabels: 'True'
+    color1: blue
+    color10: dark blue
+    color2: red
+    color3: green
+    color4: black
+    color5: cyan
+    color6: magenta
+    color7: yellow
+    color8: dark red
+    color9: dark green
+    comment: ''
+    ctrlpanel: 'False'
+    entags: 'True'
+    grid: 'False'
+    gui_hint: ''
+    label1: Signal 1
+    label10: Signal 10
+    label2: Signal 2
+    label3: Signal 3
+    label4: Signal 4
+    label5: Signal 5
+    label6: Signal 6
+    label7: Signal 7
+    label8: Signal 8
+    label9: Signal 9
+    legend: 'True'
+    marker1: '-1'
+    marker10: '-1'
+    marker2: '-1'
+    marker3: '-1'
+    marker4: '-1'
+    marker5: '-1'
+    marker6: '-1'
+    marker7: '-1'
+    marker8: '-1'
+    marker9: '-1'
+    name: '""'
+    nconnections: '1'
+    size: '2000'
+    srate: '8000'
+    stemplot: 'False'
+    style1: '1'
+    style10: '1'
+    style2: '1'
+    style3: '1'
+    style4: '1'
+    style5: '1'
+    style6: '1'
+    style7: '1'
+    style8: '1'
+    style9: '1'
+    tr_chan: '0'
+    tr_delay: '0'
+    tr_level: '0.0'
+    tr_mode: qtgui.TRIG_MODE_FREE
+    tr_slope: qtgui.TRIG_SLOPE_POS
+    tr_tag: '""'
+    type: float
+    update_time: '0.10'
+    width1: '1'
+    width10: '1'
+    width2: '1'
+    width3: '1'
+    width4: '1'
+    width5: '1'
+    width6: '1'
+    width7: '1'
+    width8: '1'
+    width9: '1'
+    ylabel: Amplitude
+    ymax: '1'
+    ymin: '-1'
+    yunit: '""'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1760, 124.0]
+    rotation: 0
+    state: disabled
+- name: qtgui_time_sink_x_0_0
+  id: qtgui_time_sink_x
+  parameters:
+    affinity: ''
+    alias: ''
+    alpha1: '1.0'
+    alpha10: '1.0'
+    alpha2: '1.0'
+    alpha3: '1.0'
+    alpha4: '1.0'
+    alpha5: '1.0'
+    alpha6: '1.0'
+    alpha7: '1.0'
+    alpha8: '1.0'
+    alpha9: '1.0'
+    autoscale: 'False'
+    axislabels: 'True'
+    color1: blue
+    color10: dark blue
+    color2: red
+    color3: green
+    color4: black
+    color5: cyan
+    color6: magenta
+    color7: yellow
+    color8: dark red
+    color9: dark green
+    comment: ''
+    ctrlpanel: 'False'
+    entags: 'False'
+    grid: 'False'
+    gui_hint: ''
+    label1: Signal 1
+    label10: Signal 10
+    label2: Signal 2
+    label3: Signal 3
+    label4: Signal 4
+    label5: Signal 5
+    label6: Signal 6
+    label7: Signal 7
+    label8: Signal 8
+    label9: Signal 9
+    legend: 'False'
+    marker1: '-1'
+    marker10: '-1'
+    marker2: '-1'
+    marker3: '-1'
+    marker4: '-1'
+    marker5: '-1'
+    marker6: '-1'
+    marker7: '-1'
+    marker8: '-1'
+    marker9: '-1'
+    name: '""'
+    nconnections: '1'
+    size: '100'
+    srate: '4800'
+    stemplot: 'False'
+    style1: '1'
+    style10: '1'
+    style2: '1'
+    style3: '1'
+    style4: '1'
+    style5: '1'
+    style6: '1'
+    style7: '1'
+    style8: '1'
+    style9: '1'
+    tr_chan: '0'
+    tr_delay: '0'
+    tr_level: '0.0'
+    tr_mode: qtgui.TRIG_MODE_FREE
+    tr_slope: qtgui.TRIG_SLOPE_POS
+    tr_tag: '""'
+    type: float
+    update_time: '0.10'
+    width1: '1'
+    width10: '1'
+    width2: '1'
+    width3: '1'
+    width4: '1'
+    width5: '1'
+    width6: '1'
+    width7: '1'
+    width8: '1'
+    width9: '1'
+    ylabel: Amplitude
+    ymax: '5'
+    ymin: '-5'
+    yunit: '""'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1224, 100.0]
+    rotation: 0
+    state: disabled
+- name: rational_resampler_xxx_0
+  id: rational_resampler_xxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    decim: '16'
+    fbw: '0'
+    interp: '1'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    taps: '[]'
+    type: ccc
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [232, 212.0]
+    rotation: 0
+    state: disabled
+- name: rational_resampler_xxx_0_0
+  id: rational_resampler_xxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    decim: int(1920000/samp_rate)
+    fbw: '0'
+    interp: '1'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    taps: '[]'
+    type: ccc
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [240, 420.0]
+    rotation: 0
+    state: enabled
+- name: rational_resampler_xxx_1
+  id: rational_resampler_xxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    decim: '1'
+    fbw: '0'
+    interp: '6'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    taps: '[]'
+    type: fff
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1568, 220.0]
+    rotation: 0
+    state: disabled
+- name: root_raised_cosine_filter_0
+  id: root_raised_cosine_filter
+  parameters:
+    affinity: ''
+    alias: ''
+    alpha: '0.5'
+    comment: ''
+    decim: '1'
+    gain: '1'
+    interp: '1'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    ntaps: '81'
+    samp_rate: '10'
+    sym_rate: '1.0'
+    type: fir_filter_fff
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [720, 212.0]
+    rotation: 0
+    state: enabled
+- name: soapy_rtlsdr_source_0
+  id: soapy_rtlsdr_source
+  parameters:
+    affinity: ''
+    agc: 'False'
+    alias: ''
+    bias: 'False'
+    center_freq: int(433475000*(1+ppm*1e-6))
+    comment: ''
+    dev_args: ''
+    freq_correction: '0'
+    gain: rf_gain
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    samp_rate: '1920000'
+    type: fc32
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [32, 436.0]
+    rotation: 0
+    state: true
+- name: vocoder_codec2_decode_ps_0
+  id: vocoder_codec2_decode_ps
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    mode: codec2.MODE_3200
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1432, 140.0]
+    rotation: 0
+    state: disabled
+
+connections:
+- [analog_quadrature_demod_cf_0, '0', blocks_moving_average_xx_0, '0']
+- [analog_quadrature_demod_cf_0, '0', blocks_sub_xx_0, '0']
+- [blocks_moving_average_xx_0, '0', blocks_sub_xx_0, '1']
+- [blocks_packed_to_unpacked_xx_0, '0', blocks_stream_to_vector_0, '0']
+- [blocks_short_to_float_0, '0', qtgui_time_sink_x_0, '0']
+- [blocks_short_to_float_0, '0', rational_resampler_xxx_1, '0']
+- [blocks_stream_to_vector_0, '0', vocoder_codec2_decode_ps_0, '0']
+- [blocks_sub_xx_0, '0', root_raised_cosine_filter_0, '0']
+- [blocks_vector_source_x_0, '0', m17_m17_coder_0, '0']
+- [digital_symbol_sync_xx_0, '0', blocks_file_sink_0_0, '0']
+- [digital_symbol_sync_xx_0, '0', m17_m17_decoder_0, '0']
+- [digital_symbol_sync_xx_0, '0', qtgui_time_sink_x_0_0, '0']
+- [iio_pluto_source_0, '0', rational_resampler_xxx_0, '0']
+- [m17_m17_coder_0, '0', m17_m17_decoder_0, '0']
+- [m17_m17_decoder_0, '0', blocks_file_sink_0, '0']
+- [m17_m17_decoder_0, '0', blocks_null_sink_0, '0']
+- [m17_m17_decoder_0, '0', blocks_packed_to_unpacked_xx_0, '0']
+- [rational_resampler_xxx_0, '0', analog_quadrature_demod_cf_0, '0']
+- [rational_resampler_xxx_0_0, '0', analog_quadrature_demod_cf_0, '0']
+- [rational_resampler_xxx_1, '0', audio_sink_0, '0']
+- [root_raised_cosine_filter_0, '0', digital_symbol_sync_xx_0, '0']
+- [root_raised_cosine_filter_0, '0', qtgui_eye_sink_x_0, '0']
+- [soapy_rtlsdr_source_0, '0', rational_resampler_xxx_0_0, '0']
+- [vocoder_codec2_decode_ps_0, '0', blocks_short_to_float_0, '0']
+
+metadata:
+  file_format: 1
+  grc_version: 3.10.7.0

SP5WWP/grc/simple_tx.grc

@@ -0,0 +1,615 @@
+options:
+  parameters:
+    author: sp5wwp
+    catch_exceptions: 'True'
+    category: '[GRC Hier Blocks]'
+    cmake_opt: ''
+    comment: ''
+    copyright: ''
+    description: ''
+    gen_cmake: 'On'
+    gen_linking: dynamic
+    generate_options: qt_gui
+    hier_block_src_path: '.:'
+    id: simple_tx
+    max_nouts: '0'
+    output_language: python
+    placement: (0,0)
+    qt_qss_theme: ''
+    realtime_scheduling: ''
+    run: 'True'
+    run_command: '{python} -u {filename}'
+    run_options: prompt
+    sizing_mode: fixed
+    thread_safe_setters: ''
+    title: Not titled yet
+    window_size: (1000,1000)
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [8, 8]
+    rotation: 0
+    state: enabled
+
+blocks:
+- name: samp_rate
+  id: variable
+  parameters:
+    comment: ''
+    value: '48000'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [184, 12]
+    rotation: 0
+    state: enabled
+- name: analog_frequency_modulator_fc_0
+  id: analog_frequency_modulator_fc
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    sensitivity: (2.0*math.pi*800.0)/samp_rate
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [720, 196.0]
+    rotation: 0
+    state: true
+- name: blocks_file_source_0
+  id: blocks_file_source
+  parameters:
+    affinity: ''
+    alias: ''
+    begin_tag: pmt.PMT_NIL
+    comment: ''
+    file: samples/1.aud
+    length: '0'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    offset: '0'
+    repeat: 'True'
+    type: short
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [8, 380.0]
+    rotation: 0
+    state: disabled
+- name: blocks_file_source_1
+  id: blocks_file_source
+  parameters:
+    affinity: ''
+    alias: ''
+    begin_tag: pmt.PMT_NIL
+    comment: ''
+    file: samples/1.bin
+    length: '0'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    offset: '0'
+    repeat: 'True'
+    type: byte
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [392, 340.0]
+    rotation: 0
+    state: disabled
+- name: blocks_pack_k_bits_bb_0
+  id: blocks_pack_k_bits_bb
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    k: '8'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [80, 316.0]
+    rotation: 180
+    state: disabled
+- name: blocks_repack_bits_bb_0
+  id: blocks_repack_bits_bb
+  parameters:
+    affinity: ''
+    alias: ''
+    align_output: 'False'
+    comment: ''
+    endianness: gr.GR_MSB_FIRST
+    k: '8'
+    l: '2'
+    len_tag_key: '""'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [544, 364.0]
+    rotation: 0
+    state: disabled
+- name: blocks_vector_source_x_0
+  id: blocks_vector_source_x
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    repeat: 'True'
+    tags: '[]'
+    type: byte
+    vector: (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [16, 180.0]
+    rotation: 0
+    state: enabled
+- name: blocks_vector_to_stream_0
+  id: blocks_vector_to_stream
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_items: '64'
+    type: byte
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [200, 320.0]
+    rotation: 180
+    state: disabled
+- name: digital_chunks_to_symbols_xx_0
+  id: digital_chunks_to_symbols_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    dimension: '1'
+    in_type: byte
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_ports: '1'
+    out_type: float
+    symbol_table: (1.0, 3.0, -1.0, -3.0)
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [728, 376.0]
+    rotation: 0
+    state: disabled
+- name: iio_pluto_sink_0
+  id: iio_pluto_sink
+  parameters:
+    affinity: ''
+    alias: ''
+    attenuation1: '30'
+    bandwidth: samp_rate*16
+    buffer_size: '32768'
+    comment: ''
+    cyclic: 'False'
+    filter: ''
+    filter_source: '''Auto'''
+    fpass: '0'
+    frequency: int(433475000*(1+2.75e-6))
+    fstop: '0'
+    len_tag_key: ''
+    samplerate: samp_rate*16
+    type: fc32
+    uri: ''
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1056, 140.0]
+    rotation: 0
+    state: disabled
+- name: import_0
+  id: import
+  parameters:
+    alias: ''
+    comment: ''
+    imports: import math
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [280, 12.0]
+    rotation: 0
+    state: true
+- name: m17_m17_coder_0
+  id: m17_m17_coder
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    debug: 'False'
+    dst_id: ALL
+    maxoutbuf: '0'
+    meta: helloworld
+    minoutbuf: '0'
+    src_id: AB1CDE
+    type: '5'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [200, 164.0]
+    rotation: 0
+    state: enabled
+- name: rational_resampler_xxx_0
+  id: rational_resampler_xxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    decim: '1'
+    fbw: '0'
+    interp: '16'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    taps: '[]'
+    type: ccf
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [888, 172.0]
+    rotation: 0
+    state: true
+- name: root_raised_cosine_filter_0
+  id: root_raised_cosine_filter
+  parameters:
+    affinity: ''
+    alias: ''
+    alpha: '0.5'
+    comment: ''
+    decim: '1'
+    gain: '10'
+    interp: '10'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    ntaps: '81'
+    samp_rate: '10'
+    sym_rate: '1.0'
+    type: interp_fir_filter_fff
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [512, 156.0]
+    rotation: 0
+    state: true
+- name: uhd_usrp_sink_0
+  id: uhd_usrp_sink
+  parameters:
+    affinity: ''
+    alias: ''
+    ant0: '"TX/RX"'
+    ant1: '"TX/RX"'
+    ant10: '"TX/RX"'
+    ant11: '"TX/RX"'
+    ant12: '"TX/RX"'
+    ant13: '"TX/RX"'
+    ant14: '"TX/RX"'
+    ant15: '"TX/RX"'
+    ant16: '"TX/RX"'
+    ant17: '"TX/RX"'
+    ant18: '"TX/RX"'
+    ant19: '"TX/RX"'
+    ant2: '"TX/RX"'
+    ant20: '"TX/RX"'
+    ant21: '"TX/RX"'
+    ant22: '"TX/RX"'
+    ant23: '"TX/RX"'
+    ant24: '"TX/RX"'
+    ant25: '"TX/RX"'
+    ant26: '"TX/RX"'
+    ant27: '"TX/RX"'
+    ant28: '"TX/RX"'
+    ant29: '"TX/RX"'
+    ant3: '"TX/RX"'
+    ant30: '"TX/RX"'
+    ant31: '"TX/RX"'
+    ant4: '"TX/RX"'
+    ant5: '"TX/RX"'
+    ant6: '"TX/RX"'
+    ant7: '"TX/RX"'
+    ant8: '"TX/RX"'
+    ant9: '"TX/RX"'
+    bw0: samp_rate*16
+    bw1: '0'
+    bw10: '0'
+    bw11: '0'
+    bw12: '0'
+    bw13: '0'
+    bw14: '0'
+    bw15: '0'
+    bw16: '0'
+    bw17: '0'
+    bw18: '0'
+    bw19: '0'
+    bw2: '0'
+    bw20: '0'
+    bw21: '0'
+    bw22: '0'
+    bw23: '0'
+    bw24: '0'
+    bw25: '0'
+    bw26: '0'
+    bw27: '0'
+    bw28: '0'
+    bw29: '0'
+    bw3: '0'
+    bw30: '0'
+    bw31: '0'
+    bw4: '0'
+    bw5: '0'
+    bw6: '0'
+    bw7: '0'
+    bw8: '0'
+    bw9: '0'
+    center_freq0: int(433475000*(1+2.75e-6))
+    center_freq1: '0'
+    center_freq10: '0'
+    center_freq11: '0'
+    center_freq12: '0'
+    center_freq13: '0'
+    center_freq14: '0'
+    center_freq15: '0'
+    center_freq16: '0'
+    center_freq17: '0'
+    center_freq18: '0'
+    center_freq19: '0'
+    center_freq2: '0'
+    center_freq20: '0'
+    center_freq21: '0'
+    center_freq22: '0'
+    center_freq23: '0'
+    center_freq24: '0'
+    center_freq25: '0'
+    center_freq26: '0'
+    center_freq27: '0'
+    center_freq28: '0'
+    center_freq29: '0'
+    center_freq3: '0'
+    center_freq30: '0'
+    center_freq31: '0'
+    center_freq4: '0'
+    center_freq5: '0'
+    center_freq6: '0'
+    center_freq7: '0'
+    center_freq8: '0'
+    center_freq9: '0'
+    clock_rate: 0e0
+    clock_source0: ''
+    clock_source1: ''
+    clock_source2: ''
+    clock_source3: ''
+    clock_source4: ''
+    clock_source5: ''
+    clock_source6: ''
+    clock_source7: ''
+    comment: ''
+    dev_addr: ''
+    dev_args: ''
+    gain0: '60'
+    gain1: '0'
+    gain10: '0'
+    gain11: '0'
+    gain12: '0'
+    gain13: '0'
+    gain14: '0'
+    gain15: '0'
+    gain16: '0'
+    gain17: '0'
+    gain18: '0'
+    gain19: '0'
+    gain2: '0'
+    gain20: '0'
+    gain21: '0'
+    gain22: '0'
+    gain23: '0'
+    gain24: '0'
+    gain25: '0'
+    gain26: '0'
+    gain27: '0'
+    gain28: '0'
+    gain29: '0'
+    gain3: '0'
+    gain30: '0'
+    gain31: '0'
+    gain4: '0'
+    gain5: '0'
+    gain6: '0'
+    gain7: '0'
+    gain8: '0'
+    gain9: '0'
+    gain_type0: default
+    gain_type1: default
+    gain_type10: default
+    gain_type11: default
+    gain_type12: default
+    gain_type13: default
+    gain_type14: default
+    gain_type15: default
+    gain_type16: default
+    gain_type17: default
+    gain_type18: default
+    gain_type19: default
+    gain_type2: default
+    gain_type20: default
+    gain_type21: default
+    gain_type22: default
+    gain_type23: default
+    gain_type24: default
+    gain_type25: default
+    gain_type26: default
+    gain_type27: default
+    gain_type28: default
+    gain_type29: default
+    gain_type3: default
+    gain_type30: default
+    gain_type31: default
+    gain_type4: default
+    gain_type5: default
+    gain_type6: default
+    gain_type7: default
+    gain_type8: default
+    gain_type9: default
+    len_tag_name: '""'
+    lo_export0: 'False'
+    lo_export1: 'False'
+    lo_export10: 'False'
+    lo_export11: 'False'
+    lo_export12: 'False'
+    lo_export13: 'False'
+    lo_export14: 'False'
+    lo_export15: 'False'
+    lo_export16: 'False'
+    lo_export17: 'False'
+    lo_export18: 'False'
+    lo_export19: 'False'
+    lo_export2: 'False'
+    lo_export20: 'False'
+    lo_export21: 'False'
+    lo_export22: 'False'
+    lo_export23: 'False'
+    lo_export24: 'False'
+    lo_export25: 'False'
+    lo_export26: 'False'
+    lo_export27: 'False'
+    lo_export28: 'False'
+    lo_export29: 'False'
+    lo_export3: 'False'
+    lo_export30: 'False'
+    lo_export31: 'False'
+    lo_export4: 'False'
+    lo_export5: 'False'
+    lo_export6: 'False'
+    lo_export7: 'False'
+    lo_export8: 'False'
+    lo_export9: 'False'
+    lo_source0: internal
+    lo_source1: internal
+    lo_source10: internal
+    lo_source11: internal
+    lo_source12: internal
+    lo_source13: internal
+    lo_source14: internal
+    lo_source15: internal
+    lo_source16: internal
+    lo_source17: internal
+    lo_source18: internal
+    lo_source19: internal
+    lo_source2: internal
+    lo_source20: internal
+    lo_source21: internal
+    lo_source22: internal
+    lo_source23: internal
+    lo_source24: internal
+    lo_source25: internal
+    lo_source26: internal
+    lo_source27: internal
+    lo_source28: internal
+    lo_source29: internal
+    lo_source3: internal
+    lo_source30: internal
+    lo_source31: internal
+    lo_source4: internal
+    lo_source5: internal
+    lo_source6: internal
+    lo_source7: internal
+    lo_source8: internal
+    lo_source9: internal
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    nchan: '1'
+    num_mboards: '1'
+    otw: ''
+    samp_rate: samp_rate*16
+    sd_spec0: ''
+    sd_spec1: ''
+    sd_spec2: ''
+    sd_spec3: ''
+    sd_spec4: ''
+    sd_spec5: ''
+    sd_spec6: ''
+    sd_spec7: ''
+    show_lo_controls: 'False'
+    start_time: '-1.0'
+    stream_args: ''
+    stream_chans: '[]'
+    sync: sync
+    time_source0: ''
+    time_source1: ''
+    time_source2: ''
+    time_source3: ''
+    time_source4: ''
+    time_source5: ''
+    time_source6: ''
+    time_source7: ''
+    type: fc32
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1064, 316.0]
+    rotation: 0
+    state: enabled
+- name: vocoder_codec2_encode_sp_0
+  id: vocoder_codec2_encode_sp
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    mode: codec2.MODE_3200
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [160, 412.0]
+    rotation: 0
+    state: disabled
+
+connections:
+- [analog_frequency_modulator_fc_0, '0', rational_resampler_xxx_0, '0']
+- [blocks_file_source_0, '0', vocoder_codec2_encode_sp_0, '0']
+- [blocks_file_source_1, '0', blocks_repack_bits_bb_0, '0']
+- [blocks_pack_k_bits_bb_0, '0', m17_m17_coder_0, '0']
+- [blocks_repack_bits_bb_0, '0', digital_chunks_to_symbols_xx_0, '0']
+- [blocks_vector_source_x_0, '0', m17_m17_coder_0, '0']
+- [blocks_vector_to_stream_0, '0', blocks_pack_k_bits_bb_0, '0']
+- [digital_chunks_to_symbols_xx_0, '0', root_raised_cosine_filter_0, '0']
+- [m17_m17_coder_0, '0', root_raised_cosine_filter_0, '0']
+- [rational_resampler_xxx_0, '0', iio_pluto_sink_0, '0']
+- [rational_resampler_xxx_0, '0', uhd_usrp_sink_0, '0']
+- [root_raised_cosine_filter_0, '0', analog_frequency_modulator_fc_0, '0']
+- [vocoder_codec2_encode_sp_0, '0', blocks_vector_to_stream_0, '0']
+
+metadata:
+  file_format: 1
+  grc_version: 3.10.7.0

SP5WWP/m17-coder/Makefile

@@ -1,4 +1,4 @@
-m17-coder-sym: m17-coder-sym.c golay.c crc.c
+m17-coder-sym: m17-coder-sym.c golay.c golay.h crc.c crc.h ../inc/m17.h
 	gcc -O2 -w m17-coder-sym.c golay.c crc.c -o m17-coder-sym -lm
 
 clean:

SP5WWP/m17-decoder/Makefile

@@ -1,4 +1,4 @@
-m17-decoder-sym: m17-decoder-sym.c golay.c viterbi.c crc.c
+m17-decoder-sym: m17-decoder-sym.c golay.c golay.h viterbi.c viterbi.h crc.c crc.h ../inc/m17.h
 	gcc -Wall -O2 m17-decoder-sym.c golay.c viterbi.c crc.c -o m17-decoder-sym -lm
 
 clean:

SP5WWP/m17-decoder/m17-decoder-sym.c

@@ -24,6 +24,7 @@ uint16_t lich_chunk[96];            //raw, soft LSF chunk extracted from the LIC
 uint8_t lich_b[6];                  //48-bit decoded LICH
 uint8_t lich_cnt;                   //LICH_CNT
 uint8_t lich_chunks_rcvd=0;         //flags set for each LSF chunk received
+uint16_t expected_next_fn=0;        //frame number of the next frame expected to arrive
 
 uint16_t enc_data[272];             //raw frame data soft bits
 uint8_t frame_data[19];             //decoded frame data, 144 bits (16+128), plus 4 flushing bits
@@ -201,6 +202,32 @@ int main(void)
                 //if it is a frame
                 if(!fl)
                 {
+                    //extract data
+                    for(uint16_t i=0; i<272; i++)
+                    {
+                        enc_data[i]=d_soft_bit[96+i];
+                    }
+
+                    //decode
+                    uint32_t e=decodePunctured(frame_data, enc_data, P_2, 272, 12);
+
+                    uint16_t fn = (frame_data[1] << 8) | frame_data[2];
+
+                    //dump data - first byte is empty
+                    printf("FN: %04X PLD: ", fn);
+                    for(uint8_t i=3; i<19; i++)
+                    {
+                        printf("%02X", frame_data[i]);
+                    }
+                    #ifdef SHOW_VITERBI_ERRS
+                    printf(" e=%1.1f\n", (float)e/0xFFFF);
+                    #else
+                    printf("\n");
+                    #endif
+
+                    //send codec2 stream to stdout
+                    //write(STDOUT_FILENO, &frame_data[3], 16);
+
                     //extract LICH
                     for(uint16_t i=0; i<96; i++)
                     {
@@ -210,6 +237,11 @@ int main(void)
                     //Golay decoder
                     decode_LICH(lich_b, lich_chunk);
                     lich_cnt=lich_b[5]>>5;
+
+                    //If we're at the start of a superframe, or we missed a frame, reset the LICH state
+                    if((lich_cnt==0) || ((fn % 0x8000)!=expected_next_fn))
+                        lich_chunks_rcvd=0;
+
                     lich_chunks_rcvd|=(1<<lich_cnt);
                     memcpy(&lsf[lich_cnt*5], lich_b, 5);
 
@@ -262,33 +294,9 @@ int main(void)
                         else
                             printf(" LSF_CRC_OK ");
                         printf("\n");
-
-                        lich_chunks_rcvd=0; //reset all flags
                     }
 
-                    //extract data
-                    for(uint16_t i=0; i<272; i++)
-                    {
-                        enc_data[i]=d_soft_bit[96+i];
-                    }
-
-                    //decode
-                    uint32_t e=decodePunctured(frame_data, enc_data, P_2, 272, 12);
-
-                    //dump data - first byte is empty
-                    printf("FN: %02X%02X PLD: ", frame_data[1], frame_data[2]);
-                    for(uint8_t i=3; i<19; i++)
-                    {
-                        printf("%02X", frame_data[i]);
-                    }
-                    #ifdef SHOW_VITERBI_ERRS
-                    printf(" e=%1.1f\n", (float)e/0xFFFF);
-                    #else
-                    printf("\n");
-                    #endif
-
-                    //send codec2 stream to stdout
-                    //write(STDOUT_FILENO, &frame_data[3], 16);
+                    expected_next_fn = (fn + 1) % 0x8000;
                 }
                 else //lsf
                 {

SP5WWP/m17-packet/Makefile

@@ -1,8 +1,14 @@
-m17-packet-encode: m17-packet-encode.c crc.c
+m17-packet-encode: m17-packet-encode.c crc.c crc.h ../inc/m17.h
 	gcc -O2 -Wall m17-packet-encode.c crc.c -o m17-packet-encode -lm
 
-m17-packet-decode: m17-packet-decode.c viterbi.c crc.c
+m17-packet-decode: m17-packet-decode.c viterbi.c viterbi.h crc.c crc.h ../inc/m17.h
 	gcc -O2 -Wall m17-packet-decode.c viterbi.c crc.c -o m17-packet-decode -lm
 
+all: m17-packet-encode m17-packet-decode
+
+install: all
+	sudo install m17-packet-encode /usr/local/bin
+	sudo install m17-packet-decode /usr/local/bin
+
 clean:
 	rm m17-packet-encode m17-packet-decode

SP5WWP/m17-packet/m17-packet-decode.c

@@ -21,9 +21,11 @@ uint16_t d_soft_bit[2*SYM_PER_PLD]; //deinterleaved soft bits
 
 uint8_t lsf[30+1];                  //complete LSF (one byte extra needed for the Viterbi decoder)
 uint8_t frame_data[26+1];           //decoded frame data, 206 bits, plus 4 flushing bits
+uint8_t packet_data[33*25];         //whole packet data
 
 uint8_t syncd=0;                    //syncword found?
 uint8_t fl=0;                       //Frame=0 of LSF=1
+int8_t last_fn;                     //last received frame number (-1 when idle)
 uint8_t pushed;                     //counter for pushed symbols
 
 //decodes a 6-byte long array to a callsign
@@ -94,24 +96,28 @@ int main(void)
             dist = eucl_norm(last, pkt_sync, 8);
 
             //fprintf(stderr, "pkt_sync dist: %3.5f\n", dist);
-            if(dist<DIST_THRESH) //Frame syncword detected
+            if(dist<DIST_THRESH) //frame syncword detected
             {
                 //fprintf(stderr, "pkt_sync\n");
                 syncd=1;
                 pushed=0;
                 fl=0;
             }
-
-            //calculate euclidean norm
-            dist = eucl_norm(last, lsf_sync, 8);
-
-            //fprintf(stderr, "lsf_sync dist: %3.5f\n", dist);
-            if(dist<DIST_THRESH) //LSF syncword
+            else
             {
-                //fprintf(stderr, "lsf_sync\n");
-                syncd=1;
-                pushed=0;
-                fl=1;
+                //calculate euclidean norm again, this time against LSF syncword
+                dist = eucl_norm(last, lsf_sync, 8);
+
+                //fprintf(stderr, "lsf_sync dist: %3.5f\n", dist);
+                if(dist<DIST_THRESH) //LSF syncword
+                {
+                    //fprintf(stderr, "lsf_sync\n");
+                    syncd=1;
+                    pushed=0;
+                    last_fn=-1;
+                    memset(packet_data, 0, 33*25);
+                    fl=1;
+                }
             }
         }
         else
@@ -176,25 +182,48 @@ int main(void)
                 if(!fl)
                 {
                     //decode
+                    #ifdef SHOW_VITERBI_ERRS
                     uint32_t e=decodePunctured(frame_data, d_soft_bit, P_3, SYM_PER_PLD*2, 8);
+                    #else
+                    decodePunctured(frame_data, d_soft_bit, P_3, SYM_PER_PLD*2, 8);
+                    #endif
 
-                    //dump data - first byte is empty
-                    if(frame_data[1]==0x05) //if text message (TODO: check its length)
+                    //dump FN
+                    uint8_t rx_fn=(frame_data[26]>>2)&0x1F;
+                    uint8_t rx_last=frame_data[26]>>7;
+                    //fprintf(stderr, "FN%d, (%d)\n", rx_fn, rx_last);
+
+                    //copy data - might require some fixing
+                    if(rx_fn<=31 && rx_fn==last_fn+1 && !rx_last)
                     {
-                        fprintf(stderr, "%s", &frame_data[2]);
+                        memcpy(&packet_data[rx_fn*25], &frame_data[1], 25);
+                        last_fn++;
                     }
-                    else
+                    else if(rx_last)
                     {
-                        fprintf(stderr, "PKT: ");
-                        for(uint8_t i=1; i<27; i++)
+                        memcpy(&packet_data[(last_fn+1)*25], &frame_data[1], rx_fn);
+
+                        //dump data
+                        if(packet_data[0]==0x05) //if a text message
                         {
-                            fprintf(stderr, "%02X", frame_data[i]);
+                            fprintf(stderr, "%s", &packet_data[1]);
                         }
+                        else
+                        {
+                            fprintf(stderr, "PKT: ");
+                            for(uint16_t i=0; i<last_fn*25+rx_fn; i++)
+                            {
+                                fprintf(stderr, "%02X", packet_data[i]);
+                            }
+                        }
+
+                        fprintf(stderr, "\n");
                     }
+
                     #ifdef SHOW_VITERBI_ERRS
                     fprintf(stderr, " e=%1.1f\n", (float)e/0xFFFF);
                     #else
-                    fprintf(stderr, "\n");
+                    //fprintf(stderr, "\n");
                     #endif
 
                     //send codec2 stream to stdout
@@ -205,7 +234,11 @@ int main(void)
                     //fprintf(stderr, "LSF\n");
 
                     //decode
+                    #ifdef SHOW_VITERBI_ERRS
                     uint32_t e=decodePunctured(lsf, d_soft_bit, P_1, 2*SYM_PER_PLD, 61);
+                    #else
+                    decodePunctured(lsf, d_soft_bit, P_1, 2*SYM_PER_PLD, 61);
+                    #endif
 
                     //shift the buffer 1 position left - get rid of the encoded flushing bits
                     for(uint8_t i=0; i<30; i++)

SP5WWP/testing/m17-sms.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+if [ "$#" -lt 5 ]
+then
+	echo "Not enough parameters."
+	echo "Usage: sh m17-sms.sh dst src can message output_file"
+	echo "Exiting."
+	exit
+fi
+
+str=$4
+printf -v _ %s%n "$str" len #get UTF-8 encoded length
+len=$(($len+2)) #add the 2 additional bytes (0x05 and 0x00)
+echo -en "\x05"$str"\x00" | m17-packet-encode -S $2 -D $1 -C $3 -n $len -o $5
+sox -t raw -r 48000 -b 16 -c 1 -L -e signed-integer $5 $5".wav"