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12 commits
eb75e3ccc3 ... 8aff0a31b3

Author SHA1 Message Date
Jan Hamal Dvořák
8aff0a31b3 README: reflect recent changes 2024-06-06 22:58:36 +02:00
Jan Hamal Dvořák
e5d927c77a Merge branch 'rtl_tcp' 2024-06-06 22:55:39 +02:00
Jan Hamal Dvořák
a2104495c6 Improve gain handling 
Now it's possible to set gain in gqrx.
 2024-06-06 22:54:02 +02:00
Jan Hamal Dvořák
40a0b843fb Streamline configuration 2024-06-06 22:53:45 +02:00
Jan Hamal Dvořák
78bb05cd1f Fake R820T to enable gqrx gain control 2024-06-06 22:11:17 +02:00
Jan Hamal Dvořák
edfe86793d util/bridge: print command names 2024-06-06 22:04:47 +02:00
Jan Hamal Dvořák
4ecefa1e5b README: update instructions for rtl_tcp mode 2024-06-06 21:23:36 +02:00
Jan Hamal Dvořák
5b3bf38e39 Update GNU Radio Companion sheets 2024-06-06 21:14:16 +02:00
Jan Hamal Dvořák
7d4b890a7f Optimize DC removal a bit 2024-06-06 20:59:07 +02:00
Jan Hamal Dvořák
48c4c2dc40 Remove LO dithering 
Means we will probably receive more LO harmonic content but have
better SNR where there is silence.
 2024-06-06 20:19:25 +02:00
Jan Hamal Dvořák
7e41420d14 Make commands more reliable 2024-06-06 20:02:30 +02:00
Jan Hamal Dvořák
af2ce901eb Convert into rtl_tcp emulator 2024-06-06 12:03:29 +02:00
5 changed files with 976 additions and 853 deletions
Show stats Expand all files Collapse all files

12
README.md
View file

@ -2,7 +2,7 @@
Using RP2040 / Raspberry Pi Pico as a software-defined radio receiver.
See the [blog post](https://blog.porucha.net/2024/pico-sdr/) for more informatiom.
See the [blog post](https://blog.porucha.net/2024/pico-sdr/) for more information. Older code the article is mostly referring to can be found in the branch `old`.
## Circuit
@ -22,12 +22,14 @@ See the [blog post](https://blog.porucha.net/2024/pico-sdr/) for more informatio
picotool load -f build/pico_sdr.uf2
```
3. Start the USB serial to TCP bridge, setting the frequency to 88.2 MHz:
3. Start the USB serial to TCP bridge:
```bash
python util/bridge.py -f 88200000
python util/bridge.py
```
4. Open `grc/PicoSDR-WBFM.grc` in GNU Radio Companion.
You need to have PySerial and Click packages installed.
5. Press `F6`. After you close the window, the bridge will exit as well.
4. Open `grc/PicoSDR-WBFM.grc` in GNU Radio Companion, adjust carrier frequency to match your favorite FM radio station and press `F6`.
5. Alternatively [gqrx](https://www.gqrx.dk/) works fine with `rtl_tcp` input mode. Maximum sample rate seem to be 400 ksps, above that the samples are dropped.

447
grc/PicoSDR-WBFM.grc
View file

@ -33,36 +33,28 @@ options:
state: enabled
blocks:
- name: bpsk
id: variable_constellation
- name: carrier
id: variable
parameters:
comment: ''
const_points: '[-1-1j, -1+1j, 1+1j, 1-1j]'
dims: '1'
normalization: digital.constellation.AMPLITUDE_NORMALIZATION
npwr: '1.0'
precision: '8'
rot_sym: '4'
soft_dec_lut: None
sym_map: '[0, 1, 3, 2]'
type: bpsk
value: '88_200_000'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [280, 8.0]
coordinate: [168, 8.0]
rotation: 0
state: true
state: enabled
- name: samp_rate
id: variable
parameters:
comment: ''
value: 1_536_000 // (1 << 3)
value: '192_000'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [176, 8.0]
coordinate: [264, 8.0]
rotation: 0
state: enabled
- name: analog_quadrature_demod_cf_0
@ -78,7 +70,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [704, 312.0]
coordinate: [640, 336.0]
rotation: 0
state: true
- name: analog_wfm_rcv_pll_0
@ -96,7 +88,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [456, 376.0]
coordinate: [640, 440.0]
rotation: 0
state: true
- name: audio_sink_0
@ -113,25 +105,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [704, 384.0]
rotation: 0
state: true
- name: blocks_interleaved_short_to_complex_0
id: blocks_interleaved_short_to_complex
parameters:
affinity: ''
alias: ''
comment: ''
maxoutbuf: '0'
minoutbuf: '0'
scale_factor: (1 << 15) - 1
swap: 'False'
vector_input: 'False'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [224, 208.0]
coordinate: [928, 448.0]
rotation: 0
state: true
- name: blocks_message_debug_0
@ -146,7 +120,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [992, 8.0]
coordinate: [928, 32.0]
rotation: 0
state: true
- name: blocks_probe_rate_0
@ -166,20 +140,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [704, 16.0]
rotation: 0
state: true
- name: import_0
id: import
parameters:
alias: ''
comment: ''
imports: import math
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [440, 8.0]
coordinate: [640, 40.0]
rotation: 0
state: true
- name: low_pass_filter_0
@ -203,29 +164,366 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [992, 284.0]
coordinate: [928, 284.0]
rotation: 0
state: enabled
- name: network_tcp_source_0
id: network_tcp_source
- name: osmosdr_source_0
id: osmosdr_source
parameters:
addr: 127.0.0.1
affinity: ''
alias: ''
ant0: ''
ant1: ''
ant10: ''
ant11: ''
ant12: ''
ant13: ''
ant14: ''
ant15: ''
ant16: ''
ant17: ''
ant18: ''
ant19: ''
ant2: ''
ant20: ''
ant21: ''
ant22: ''
ant23: ''
ant24: ''
ant25: ''
ant26: ''
ant27: ''
ant28: ''
ant29: ''
ant3: ''
ant30: ''
ant31: ''
ant4: ''
ant5: ''
ant6: ''
ant7: ''
ant8: ''
ant9: ''
args: '"rtl_tcp"'
bb_gain0: '20'
bb_gain1: '20'
bb_gain10: '20'
bb_gain11: '20'
bb_gain12: '20'
bb_gain13: '20'
bb_gain14: '20'
bb_gain15: '20'
bb_gain16: '20'
bb_gain17: '20'
bb_gain18: '20'
bb_gain19: '20'
bb_gain2: '20'
bb_gain20: '20'
bb_gain21: '20'
bb_gain22: '20'
bb_gain23: '20'
bb_gain24: '20'
bb_gain25: '20'
bb_gain26: '20'
bb_gain27: '20'
bb_gain28: '20'
bb_gain29: '20'
bb_gain3: '20'
bb_gain30: '20'
bb_gain31: '20'
bb_gain4: '20'
bb_gain5: '20'
bb_gain6: '20'
bb_gain7: '20'
bb_gain8: '20'
bb_gain9: '20'
bw0: '0'
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'
clock_source0: ''
clock_source1: ''
clock_source2: ''
clock_source3: ''
clock_source4: ''
clock_source5: ''
clock_source6: ''
clock_source7: ''
comment: ''
corr0: '0'
corr1: '0'
corr10: '0'
corr11: '0'
corr12: '0'
corr13: '0'
corr14: '0'
corr15: '0'
corr16: '0'
corr17: '0'
corr18: '0'
corr19: '0'
corr2: '0'
corr20: '0'
corr21: '0'
corr22: '0'
corr23: '0'
corr24: '0'
corr25: '0'
corr26: '0'
corr27: '0'
corr28: '0'
corr29: '0'
corr3: '0'
corr30: '0'
corr31: '0'
corr4: '0'
corr5: '0'
corr6: '0'
corr7: '0'
corr8: '0'
corr9: '0'
dc_offset_mode0: '0'
dc_offset_mode1: '0'
dc_offset_mode10: '0'
dc_offset_mode11: '0'
dc_offset_mode12: '0'
dc_offset_mode13: '0'
dc_offset_mode14: '0'
dc_offset_mode15: '0'
dc_offset_mode16: '0'
dc_offset_mode17: '0'
dc_offset_mode18: '0'
dc_offset_mode19: '0'
dc_offset_mode2: '0'
dc_offset_mode20: '0'
dc_offset_mode21: '0'
dc_offset_mode22: '0'
dc_offset_mode23: '0'
dc_offset_mode24: '0'
dc_offset_mode25: '0'
dc_offset_mode26: '0'
dc_offset_mode27: '0'
dc_offset_mode28: '0'
dc_offset_mode29: '0'
dc_offset_mode3: '0'
dc_offset_mode30: '0'
dc_offset_mode31: '0'
dc_offset_mode4: '0'
dc_offset_mode5: '0'
dc_offset_mode6: '0'
dc_offset_mode7: '0'
dc_offset_mode8: '0'
dc_offset_mode9: '0'
freq0: carrier
freq1: 100e6
freq10: 100e6
freq11: 100e6
freq12: 100e6
freq13: 100e6
freq14: 100e6
freq15: 100e6
freq16: 100e6
freq17: 100e6
freq18: 100e6
freq19: 100e6
freq2: 100e6
freq20: 100e6
freq21: 100e6
freq22: 100e6
freq23: 100e6
freq24: 100e6
freq25: 100e6
freq26: 100e6
freq27: 100e6
freq28: 100e6
freq29: 100e6
freq3: 100e6
freq30: 100e6
freq31: 100e6
freq4: 100e6
freq5: 100e6
freq6: 100e6
freq7: 100e6
freq8: 100e6
freq9: 100e6
gain0: '10'
gain1: '10'
gain10: '10'
gain11: '10'
gain12: '10'
gain13: '10'
gain14: '10'
gain15: '10'
gain16: '10'
gain17: '10'
gain18: '10'
gain19: '10'
gain2: '10'
gain20: '10'
gain21: '10'
gain22: '10'
gain23: '10'
gain24: '10'
gain25: '10'
gain26: '10'
gain27: '10'
gain28: '10'
gain29: '10'
gain3: '10'
gain30: '10'
gain31: '10'
gain4: '10'
gain5: '10'
gain6: '10'
gain7: '10'
gain8: '10'
gain9: '10'
gain_mode0: 'False'
gain_mode1: 'False'
gain_mode10: 'False'
gain_mode11: 'False'
gain_mode12: 'False'
gain_mode13: 'False'
gain_mode14: 'False'
gain_mode15: 'False'
gain_mode16: 'False'
gain_mode17: 'False'
gain_mode18: 'False'
gain_mode19: 'False'
gain_mode2: 'False'
gain_mode20: 'False'
gain_mode21: 'False'
gain_mode22: 'False'
gain_mode23: 'False'
gain_mode24: 'False'
gain_mode25: 'False'
gain_mode26: 'False'
gain_mode27: 'False'
gain_mode28: 'False'
gain_mode29: 'False'
gain_mode3: 'False'
gain_mode30: 'False'
gain_mode31: 'False'
gain_mode4: 'False'
gain_mode5: 'False'
gain_mode6: 'False'
gain_mode7: 'False'
gain_mode8: 'False'
gain_mode9: 'False'
if_gain0: '20'
if_gain1: '20'
if_gain10: '20'
if_gain11: '20'
if_gain12: '20'
if_gain13: '20'
if_gain14: '20'
if_gain15: '20'
if_gain16: '20'
if_gain17: '20'
if_gain18: '20'
if_gain19: '20'
if_gain2: '20'
if_gain20: '20'
if_gain21: '20'
if_gain22: '20'
if_gain23: '20'
if_gain24: '20'
if_gain25: '20'
if_gain26: '20'
if_gain27: '20'
if_gain28: '20'
if_gain29: '20'
if_gain3: '20'
if_gain30: '20'
if_gain31: '20'
if_gain4: '20'
if_gain5: '20'
if_gain6: '20'
if_gain7: '20'
if_gain8: '20'
if_gain9: '20'
iq_balance_mode0: '0'
iq_balance_mode1: '0'
iq_balance_mode10: '0'
iq_balance_mode11: '0'
iq_balance_mode12: '0'
iq_balance_mode13: '0'
iq_balance_mode14: '0'
iq_balance_mode15: '0'
iq_balance_mode16: '0'
iq_balance_mode17: '0'
iq_balance_mode18: '0'
iq_balance_mode19: '0'
iq_balance_mode2: '0'
iq_balance_mode20: '0'
iq_balance_mode21: '0'
iq_balance_mode22: '0'
iq_balance_mode23: '0'
iq_balance_mode24: '0'
iq_balance_mode25: '0'
iq_balance_mode26: '0'
iq_balance_mode27: '0'
iq_balance_mode28: '0'
iq_balance_mode29: '0'
iq_balance_mode3: '0'
iq_balance_mode30: '0'
iq_balance_mode31: '0'
iq_balance_mode4: '0'
iq_balance_mode5: '0'
iq_balance_mode6: '0'
iq_balance_mode7: '0'
iq_balance_mode8: '0'
iq_balance_mode9: '0'
maxoutbuf: '0'
minoutbuf: '0'
port: '1234'
server: 'True'
type: short
vlen: '1'
nchan: '1'
num_mboards: '1'
sample_rate: samp_rate
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: [48, 200.0]
coordinate: [152, 164.0]
rotation: 0
state: true
state: enabled
- name: qtgui_time_sink_x_0
id: qtgui_time_sink_x
parameters:
@ -320,7 +618,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [704, 208.0]
coordinate: [640, 232.0]
rotation: 0
state: true
- name: qtgui_time_sink_x_0_0
@ -417,7 +715,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1192, 312.0]
coordinate: [1128, 312.0]
rotation: 0
state: true
- name: qtgui_waterfall_sink_x_0_0
@ -449,12 +747,12 @@ blocks:
color9: '0'
comment: ''
fc: '0'
fftsize: '2048'
fftsize: '4096'
freqhalf: 'True'
grid: 'True'
gui_hint: (0, 0, 1, 2)
int_max: '0'
int_min: 10 * math.log10(1 / ((2 ** 15 - 1) ** 2))
int_min: 10 * math.log10(1 / ((2 ** 16) ** 2))
label1: ''
label10: ''
label2: ''
@ -478,7 +776,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [704, 104.0]
coordinate: [640, 128.0]
rotation: 0
state: true
- name: qtgui_waterfall_sink_x_0_0_0_0
@ -510,12 +808,12 @@ blocks:
color9: '0'
comment: ''
fc: '0'
fftsize: '2048'
fftsize: '1024'
freqhalf: 'True'
grid: 'True'
gui_hint: (3, 0, 1, 2)
int_max: '0'
int_min: 10 * math.log10(1 / ((2 ** 15 - 1) ** 2))
int_min: 10 * math.log10(1 / ((2 ** 16) ** 2))
label1: ''
label10: ''
label2: ''
@ -539,7 +837,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [992, 184.0]
coordinate: [928, 184.0]
rotation: 0
state: true
@ -548,14 +846,13 @@ connections:
- [analog_quadrature_demod_cf_0, '0', qtgui_waterfall_sink_x_0_0_0_0, '0']
- [analog_wfm_rcv_pll_0, '0', audio_sink_0, '0']
- [analog_wfm_rcv_pll_0, '1', audio_sink_0, '1']
- [blocks_interleaved_short_to_complex_0, '0', analog_quadrature_demod_cf_0, '0']
- [blocks_interleaved_short_to_complex_0, '0', analog_wfm_rcv_pll_0, '0']
- [blocks_interleaved_short_to_complex_0, '0', blocks_probe_rate_0, '0']
- [blocks_interleaved_short_to_complex_0, '0', qtgui_time_sink_x_0, '0']
- [blocks_interleaved_short_to_complex_0, '0', qtgui_waterfall_sink_x_0_0, '0']
- [blocks_probe_rate_0, rate, blocks_message_debug_0, print]
- [low_pass_filter_0, '0', qtgui_time_sink_x_0_0, '0']
- [network_tcp_source_0, '0', blocks_interleaved_short_to_complex_0, '0']
- [osmosdr_source_0, '0', analog_quadrature_demod_cf_0, '0']
- [osmosdr_source_0, '0', analog_wfm_rcv_pll_0, '0']
- [osmosdr_source_0, '0', blocks_probe_rate_0, '0']
- [osmosdr_source_0, '0', qtgui_time_sink_x_0, '0']
- [osmosdr_source_0, '0', qtgui_waterfall_sink_x_0_0, '0']
metadata:
file_format: 1

439
grc/PicoSDR.grc
View file

@ -33,36 +33,28 @@ options:
state: enabled
blocks:
- name: bpsk
id: variable_constellation
- name: carrier
id: variable
parameters:
comment: ''
const_points: '[-1-1j, -1+1j, 1+1j, 1-1j]'
dims: '1'
normalization: digital.constellation.AMPLITUDE_NORMALIZATION
npwr: '1.0'
precision: '8'
rot_sym: '4'
soft_dec_lut: None
sym_map: '[0, 1, 3, 2]'
type: bpsk
value: '40_680_000'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [280, 8.0]
coordinate: [168, 8.0]
rotation: 0
state: true
state: enabled
- name: samp_rate
id: variable
parameters:
comment: ''
value: 1_280_000 // (1 << 6)
value: '50_000'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [176, 8.0]
coordinate: [264, 8.0]
rotation: 0
state: enabled
- name: analog_quadrature_demod_cf_0
@ -78,25 +70,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [704, 512.0]
rotation: 0
state: true
- name: blocks_interleaved_short_to_complex_0
id: blocks_interleaved_short_to_complex
parameters:
affinity: ''
alias: ''
comment: ''
maxoutbuf: '0'
minoutbuf: '0'
scale_factor: (1 << 15) - 1
swap: 'False'
vector_input: 'False'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [224, 208.0]
coordinate: [640, 536.0]
rotation: 0
state: true
- name: blocks_message_debug_0
@ -111,7 +85,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1000, 32.0]
coordinate: [928, 32.0]
rotation: 0
state: true
- name: blocks_probe_rate_0
@ -123,7 +97,7 @@ blocks:
comment: ''
maxoutbuf: '0'
minoutbuf: '0'
mintime: '1000'
mintime: '2500'
name: ''
type: complex
vlen: '1'
@ -131,7 +105,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [704, 16.0]
coordinate: [640, 40.0]
rotation: 0
state: true
- name: digital_costas_loop_cc_0
@ -149,42 +123,366 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [704, 320.0]
coordinate: [640, 344.0]
rotation: 0
state: true
- name: import_0
id: import
- name: osmosdr_source_0
id: osmosdr_source
parameters:
alias: ''
comment: ''
imports: import math
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [440, 8.0]
rotation: 0
state: true
- name: network_tcp_source_0
id: network_tcp_source
parameters:
addr: 127.0.0.1
affinity: ''
alias: ''
ant0: ''
ant1: ''
ant10: ''
ant11: ''
ant12: ''
ant13: ''
ant14: ''
ant15: ''
ant16: ''
ant17: ''
ant18: ''
ant19: ''
ant2: ''
ant20: ''
ant21: ''
ant22: ''
ant23: ''
ant24: ''
ant25: ''
ant26: ''
ant27: ''
ant28: ''
ant29: ''
ant3: ''
ant30: ''
ant31: ''
ant4: ''
ant5: ''
ant6: ''
ant7: ''
ant8: ''
ant9: ''
args: '"rtl_tcp"'
bb_gain0: '20'
bb_gain1: '20'
bb_gain10: '20'
bb_gain11: '20'
bb_gain12: '20'
bb_gain13: '20'
bb_gain14: '20'
bb_gain15: '20'
bb_gain16: '20'
bb_gain17: '20'
bb_gain18: '20'
bb_gain19: '20'
bb_gain2: '20'
bb_gain20: '20'
bb_gain21: '20'
bb_gain22: '20'
bb_gain23: '20'
bb_gain24: '20'
bb_gain25: '20'
bb_gain26: '20'
bb_gain27: '20'
bb_gain28: '20'
bb_gain29: '20'
bb_gain3: '20'
bb_gain30: '20'
bb_gain31: '20'
bb_gain4: '20'
bb_gain5: '20'
bb_gain6: '20'
bb_gain7: '20'
bb_gain8: '20'
bb_gain9: '20'
bw0: '0'
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'
clock_source0: ''
clock_source1: ''
clock_source2: ''
clock_source3: ''
clock_source4: ''
clock_source5: ''
clock_source6: ''
clock_source7: ''
comment: ''
corr0: '0'
corr1: '0'
corr10: '0'
corr11: '0'
corr12: '0'
corr13: '0'
corr14: '0'
corr15: '0'
corr16: '0'
corr17: '0'
corr18: '0'
corr19: '0'
corr2: '0'
corr20: '0'
corr21: '0'
corr22: '0'
corr23: '0'
corr24: '0'
corr25: '0'
corr26: '0'
corr27: '0'
corr28: '0'
corr29: '0'
corr3: '0'
corr30: '0'
corr31: '0'
corr4: '0'
corr5: '0'
corr6: '0'
corr7: '0'
corr8: '0'
corr9: '0'
dc_offset_mode0: '0'
dc_offset_mode1: '0'
dc_offset_mode10: '0'
dc_offset_mode11: '0'
dc_offset_mode12: '0'
dc_offset_mode13: '0'
dc_offset_mode14: '0'
dc_offset_mode15: '0'
dc_offset_mode16: '0'
dc_offset_mode17: '0'
dc_offset_mode18: '0'
dc_offset_mode19: '0'
dc_offset_mode2: '0'
dc_offset_mode20: '0'
dc_offset_mode21: '0'
dc_offset_mode22: '0'
dc_offset_mode23: '0'
dc_offset_mode24: '0'
dc_offset_mode25: '0'
dc_offset_mode26: '0'
dc_offset_mode27: '0'
dc_offset_mode28: '0'
dc_offset_mode29: '0'
dc_offset_mode3: '0'
dc_offset_mode30: '0'
dc_offset_mode31: '0'
dc_offset_mode4: '0'
dc_offset_mode5: '0'
dc_offset_mode6: '0'
dc_offset_mode7: '0'
dc_offset_mode8: '0'
dc_offset_mode9: '0'
freq0: carrier
freq1: 100e6
freq10: 100e6
freq11: 100e6
freq12: 100e6
freq13: 100e6
freq14: 100e6
freq15: 100e6
freq16: 100e6
freq17: 100e6
freq18: 100e6
freq19: 100e6
freq2: 100e6
freq20: 100e6
freq21: 100e6
freq22: 100e6
freq23: 100e6
freq24: 100e6
freq25: 100e6
freq26: 100e6
freq27: 100e6
freq28: 100e6
freq29: 100e6
freq3: 100e6
freq30: 100e6
freq31: 100e6
freq4: 100e6
freq5: 100e6
freq6: 100e6
freq7: 100e6
freq8: 100e6
freq9: 100e6
gain0: '10'
gain1: '10'
gain10: '10'
gain11: '10'
gain12: '10'
gain13: '10'
gain14: '10'
gain15: '10'
gain16: '10'
gain17: '10'
gain18: '10'
gain19: '10'
gain2: '10'
gain20: '10'
gain21: '10'
gain22: '10'
gain23: '10'
gain24: '10'
gain25: '10'
gain26: '10'
gain27: '10'
gain28: '10'
gain29: '10'
gain3: '10'
gain30: '10'
gain31: '10'
gain4: '10'
gain5: '10'
gain6: '10'
gain7: '10'
gain8: '10'
gain9: '10'
gain_mode0: 'False'
gain_mode1: 'False'
gain_mode10: 'False'
gain_mode11: 'False'
gain_mode12: 'False'
gain_mode13: 'False'
gain_mode14: 'False'
gain_mode15: 'False'
gain_mode16: 'False'
gain_mode17: 'False'
gain_mode18: 'False'
gain_mode19: 'False'
gain_mode2: 'False'
gain_mode20: 'False'
gain_mode21: 'False'
gain_mode22: 'False'
gain_mode23: 'False'
gain_mode24: 'False'
gain_mode25: 'False'
gain_mode26: 'False'
gain_mode27: 'False'
gain_mode28: 'False'
gain_mode29: 'False'
gain_mode3: 'False'
gain_mode30: 'False'
gain_mode31: 'False'
gain_mode4: 'False'
gain_mode5: 'False'
gain_mode6: 'False'
gain_mode7: 'False'
gain_mode8: 'False'
gain_mode9: 'False'
if_gain0: '20'
if_gain1: '20'
if_gain10: '20'
if_gain11: '20'
if_gain12: '20'
if_gain13: '20'
if_gain14: '20'
if_gain15: '20'
if_gain16: '20'
if_gain17: '20'
if_gain18: '20'
if_gain19: '20'
if_gain2: '20'
if_gain20: '20'
if_gain21: '20'
if_gain22: '20'
if_gain23: '20'
if_gain24: '20'
if_gain25: '20'
if_gain26: '20'
if_gain27: '20'
if_gain28: '20'
if_gain29: '20'
if_gain3: '20'
if_gain30: '20'
if_gain31: '20'
if_gain4: '20'
if_gain5: '20'
if_gain6: '20'
if_gain7: '20'
if_gain8: '20'
if_gain9: '20'
iq_balance_mode0: '0'
iq_balance_mode1: '0'
iq_balance_mode10: '0'
iq_balance_mode11: '0'
iq_balance_mode12: '0'
iq_balance_mode13: '0'
iq_balance_mode14: '0'
iq_balance_mode15: '0'
iq_balance_mode16: '0'
iq_balance_mode17: '0'
iq_balance_mode18: '0'
iq_balance_mode19: '0'
iq_balance_mode2: '0'
iq_balance_mode20: '0'
iq_balance_mode21: '0'
iq_balance_mode22: '0'
iq_balance_mode23: '0'
iq_balance_mode24: '0'
iq_balance_mode25: '0'
iq_balance_mode26: '0'
iq_balance_mode27: '0'
iq_balance_mode28: '0'
iq_balance_mode29: '0'
iq_balance_mode3: '0'
iq_balance_mode30: '0'
iq_balance_mode31: '0'
iq_balance_mode4: '0'
iq_balance_mode5: '0'
iq_balance_mode6: '0'
iq_balance_mode7: '0'
iq_balance_mode8: '0'
iq_balance_mode9: '0'
maxoutbuf: '0'
minoutbuf: '0'
port: '1234'
server: 'True'
type: short
vlen: '1'
nchan: '1'
num_mboards: '1'
sample_rate: samp_rate
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: [48, 200.0]
coordinate: [152, 164.0]
rotation: 0
state: true
state: enabled
- name: qtgui_const_sink_x_0
id: qtgui_const_sink_x
parameters:
@ -274,7 +572,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1000, 304.0]
coordinate: [928, 328.0]
rotation: 0
state: true
- name: qtgui_time_sink_x_0
@ -371,7 +669,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [704, 208.0]
coordinate: [640, 232.0]
rotation: 0
state: true
- name: qtgui_time_sink_x_0_0
@ -468,7 +766,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1000, 488.0]
coordinate: [928, 512.0]
rotation: 0
state: true
- name: qtgui_time_sink_x_0_1
@ -565,7 +863,7 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [1000, 376.0]
coordinate: [928, 400.0]
rotation: 0
state: true
- name: qtgui_waterfall_sink_x_0_0
@ -626,21 +924,20 @@ blocks:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [704, 104.0]
coordinate: [640, 128.0]
rotation: 0
state: true
connections:
- [analog_quadrature_demod_cf_0, '0', qtgui_time_sink_x_0_0, '0']
- [blocks_interleaved_short_to_complex_0, '0', analog_quadrature_demod_cf_0, '0']
- [blocks_interleaved_short_to_complex_0, '0', blocks_probe_rate_0, '0']
- [blocks_interleaved_short_to_complex_0, '0', digital_costas_loop_cc_0, '0']
- [blocks_interleaved_short_to_complex_0, '0', qtgui_time_sink_x_0, '0']
- [blocks_interleaved_short_to_complex_0, '0', qtgui_waterfall_sink_x_0_0, '0']
- [blocks_probe_rate_0, rate, blocks_message_debug_0, print]
- [digital_costas_loop_cc_0, '0', qtgui_const_sink_x_0, '0']
- [digital_costas_loop_cc_0, '0', qtgui_time_sink_x_0_1, '0']
- [network_tcp_source_0, '0', blocks_interleaved_short_to_complex_0, '0']
- [osmosdr_source_0, '0', analog_quadrature_demod_cf_0, '0']
- [osmosdr_source_0, '0', blocks_probe_rate_0, '0']
- [osmosdr_source_0, '0', digital_costas_loop_cc_0, '0']
- [osmosdr_source_0, '0', qtgui_time_sink_x_0, '0']
- [osmosdr_source_0, '0', qtgui_waterfall_sink_x_0_0, '0']
metadata:
file_format: 1

832
src/main.c
View file

File diff suppressed because it is too large Load diff

99
util/bridge.py
View file

@ -1,57 +1,88 @@
#!/usr/bin/env python
import time
from codecs import encode
from socket import AF_INET, SO_SNDBUF, SOCK_STREAM, SOL_SOCKET, socket
import struct
from socket import (AF_INET, MSG_DONTWAIT, SO_REUSEADDR, SO_SNDBUF,
SOCK_STREAM, SOL_SOCKET, socket)
import click
import serial
COMMAND_NAMES = [
"reset",
"tune_freq",
"sample_rate",
"manual_gain",
"gain",
"ppm_offset",
"if_gain",
"test_mode",
"agc",
"direct_sampling",
"offset_tuning",
"11",
"12",
"gain_index",
"bias_tee",
]
def describe(cmd: int, arg: int):
try:
print("->", COMMAND_NAMES[cmd], arg)
except IndexError:
print("->", cmd, arg)
@click.command()
@click.option("-f", "--frequency", default=40680000, help="Frequency to tune to")
@click.option("--rx", default=10, help="Receive pin")
@click.option("--bias", default=11, help="Bias pin")
def bridge(frequency, rx, bias):
@click.option("-f", "--frequency", default=88200000, help="Frequency to tune to")
def bridge(frequency):
sock = socket(AF_INET, SOCK_STREAM)
sock.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
sock.setsockopt(SOL_SOCKET, SO_SNDBUF, 1024 * 100)
with serial.Serial("/dev/ttyACM0", baudrate=10_000_000) as fp:
print("Resetting...")
fp.write(b"\r\n")
print("Posing as rtl_tcp at tcp://127.0.0.1:1234")
sock.bind(("127.0.0.1", 1234))
sock.listen(3)
time.sleep(0.1)
while True:
peer, addr = sock.accept()
print("Client connected:", addr)
while fp.in_waiting:
fp.read(fp.in_waiting)
time.sleep(0.1)
with serial.Serial("/dev/ttyACM0", baudrate=10_000_000, timeout=0.1) as fp:
print(f"Starting RX @ {frequency}")
fp.write(struct.pack(">BBL", 0, 1, int(frequency)))
fp.flush()
print("Connecting to localhost:1234...")
sock.connect(("localhost", 1234))
print("Begin")
print(f"Starting RX {rx}/{bias} at {frequency}...")
fp.write(f"brx {rx} {bias} {frequency}\r\n".encode("ascii"))
fp.read_until(b"$")
try:
cmd = b""
try:
while True:
bstr = fp.read(64)
assert len(bstr) == 64
while True:
try:
cmd += peer.recv(1, MSG_DONTWAIT)
except BlockingIOError:
pass
try:
assert len(bstr) == sock.send(bstr)
except ConnectionRefusedError:
pass
while len(cmd) >= 5:
fp.write(cmd[:5])
info = struct.unpack(">BL", cmd[:5])
describe(*info)
cmd = cmd[5:]
except ConnectionError:
pass
data = fp.read(64)
if data:
peer.send(data)
except KeyboardInterrupt:
pass
except ConnectionError:
pass
finally:
fp.write(b"\r\n")
print("Bye.")
except KeyboardInterrupt:
pass
finally:
fp.write(b"\x00")
print("Bye.")
if __name__ == "__main__":