100 % CPU and no result about acars-sdrplay

[TLeconte]

acardec run on the same rpi ...

acarsdec -p -o 2 -r 0 -p 48 131.725 131.850
Found Rafael Micro R820T tuner
WARNING: Invalid frequency 0
WARNING: Invalid frequency 48000000
Exact sample rate is: 2000000.052982 Hz

If acars-sdrplay use the same cli syntax than my original program, the order of parameters is important and the -r n must be the last before the frequencies. It's why you got frequencies errors.
Correct syntax is :
acarsdec -p -o 2 -p 48 -r 0 131.725 131.850

[IT-Berater]

i@pi-home:~ $ acarsdec -p 48 -o 2 -r 0 131.725 131.850
Found Rafael Micro R820T tuner
Exact sample rate is: 2000000.052982 Hz

[#1 (F:131.725 L:-19 E:0) 07/01/2019 18:26:10.164 --------------------------------
Mode : e Label : SQ
02XSHAJEDDV05228N00942EV136975/

[#1 (F:131.725 L:-19 E:0) 07/01/2019 18:28:11.160 --------------------------------
Mode : e Label : SQ
02XSHAJEDDV05228N00942EV136975/

[#1 (F:131.725 L:-21 E:0) 07/01/2019 18:28:46.469 --------------------------------
Mode : 2 Label : _d Id : Z Ack : 3
Aircraft reg: D-ATYC Flight id:
No:

[#1 (F:131.725 L:-12 E:0) 07/01/2019 18:29:00.312 --------------------------------
Mode : E Label : 15 Id : 9 Nak
Aircraft reg: G-EUPE Flight id: BA978J
No: M43A
FST01EGLLEDDVN52479E0097997 8 22 29 28235 111 18301828
##########################
Destination Airport : EDDV
Departure Airport : EGLL

[JvanKatwijk]

I do not know which RPI type you are using, this happens on the 3 Op ma 7 jan. 2019 om 16:11 schreef Thomas Wenzlaff <[email protected]

…

: Hi Jvan, i test with Raspberry PI. Alway 100% CPU (see pic), and no result :-( ./acars-0.5 -p 48 -g 2 -s 30 -f 131250 -f 131850 rawAddr = (null) outtype = 2 outtype = 2 frequency 0 is 131250000 frequency 1 is 131850000 OK, functions seem to be loaded Found Rafael Micro R820T tuner [R82XX] PLL not locked! samplerate set to 2400000 Supported gain values (29): 0.0 0.9 1.4 2.7 3.7 7.7 8.7 12.5 14.4 15.7 16.6 19.7 20.7 22.9 25.4 28.0 29.7 32.8 33.8 36.4 37.2 38.6 40.2 42.1 43.4 43.9 44.5 48.0 49.6 effective gain: index 8, gain 144 frequency 0 is 131250000 frequency 1 is 131850000 handler 0 has offset -300000 (rate 2400000) handler 1 has offset 300000 (rate 2400000) printer is running [image: bildschirmfoto 2019-01-07 um 15 18 03] <https://user-images.githubusercontent.com/1748499/50775559-bf933200-1296-11e9-9cbe-b396521b50c7.png> — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#2>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AITzwN6eGtWikahquXJJnXuk8zYb7zRFks5vA2OQgaJpZM4Zzq8A> .

-- Jan van Katwijk [phone] [phone]

[IT-Berater]

Yes, no RPI 3, a old version ...
processor : 0
model name : ARMv6-compatible processor rev 7 (v6l)
BogoMIPS : 697.95
Features : half thumb fastmult vfp edsp java tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xb76
CPU revision : 7

Hardware : BCM2835
Revision : 000e

[IT-Berater]

acardec run on the same rpi ...

acarsdec -p -o 2 -r 0 -p 48 131.725 131.850
Found Rafael Micro R820T tuner
WARNING: Invalid frequency 0
WARNING: Invalid frequency 48000000
Exact sample rate is: 2000000.052982 Hz

[#1 (F:131.725 L:-22 E:0) 07/01/2019 15:28:23.047 --------------------------------
Mode : e Label : SQ
02XSHAJEDDV05228N00942EV136975/

[#1 (F:131.725 L:-22 E:2) 07/01/2019 15:30:23.136 --------------------------------
Mode : e Label : SQ
02XSHAJEDDV05228N00942EV136975/

with 38 % CPU

[IT-Berater]

[JvanKatwijk]

That is certainly possible, I took a more geneal approach, separating things which takes resources Op ma 7 jan. 2019 om 16:37 schreef Thomas Wenzlaff <[email protected]

…

: [image: bildschirmfoto 2019-01-07 um 16 36 20] <https://user-images.githubusercontent.com/1748499/50776887-73e28780-129a-11e9-89b2-6111f6eaa643.png> — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#2 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AITzwGAu47yIWyKrq6gosiC8LKfK9ya3ks5vA2mpgaJpZM4Zzq8A> .

-- Jan van Katwijk [phone] [phone]

[IT-Berater]

Too bad :-(, then I can not use the program, unfortunately.

[JvanKatwijk]

No the order of parameters is slightly different, in acars-sdrplay one precedes each frequency parameter with a "-f", Parameter handling is slightly different and handled in a "central" unit, there a "stack" of frequencies is built up. so the syntac would be acars-sdrplay ...-f 131725 ... -f 131525 ... -f 131825 Op ma 7 jan. 2019 om 18:24 schreef Thierry Leconte <[email protected]

…

: *acardec* run on the same rpi ... acarsdec -p -o 2 -r 0 -p 48 131.725 131.850 Found Rafael Micro R820T tuner WARNING: Invalid frequency 0 WARNING: Invalid frequency 48000000 Exact sample rate is: 2000000.052982 Hz If acars-sdrplay use the same cli syntax than my original program <https://github.com/TLeconte/acarsdec>, the order of parameters is important and the -r n must be the last before the frequencies. It's why you got frequencies errors. Correct syntax is : acarsdec -p -o 2 -p 48 -r 0 131.725 131.850 — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#2 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AITzwFtkRC3pRNGDtpeKqekSCVbvXnBnks5vA4LTgaJpZM4Zzq8A> .

-- Jan van Katwijk [phone] [phone]

[IT-Berater]

Ok, i understand. Summary:

acars-0.5 -p 48 -g 2 -s 30 -f 131250 -f 131850 // new C++ work not on my Raspberry

acarsdec -p 48 -o 2 -r 0 131.725 131.850 // old C works fine on my Raspberry

[TLeconte]

JvanKatwijk add sdrplay to "old C" acarsdec.
Do you try it ?
I do not, I don't have a sdrplay

[IT-Berater]

JvanKatwijk add sdrplay to "old C" acarsdec.
Do you try it ?
I do not, I don't have a sdrplay
I have not a sdrplay, only a Raspberry Pi with rtlsdr dongle .

[IT-Berater]

Sorry for the confusion. I have confused a concept. I do not have an SDRplay but only a rtlsdr!

[IT-Berater]

I just wanted to test the new acars-0.5 program for a new blog entry: http://blog.wenzlaff.de/?s=acars

[JvanKatwijk]

Well, the history is as follows. I wanted to use the sdrplay device with the acarsdec program, but I did not undertanstand the code. So, by writing code, looking at the acarsdec code and experimenting a little I made a version, differently structured. Then I had a sufficient understanding of the acarsdec code to add SDRplay support to the acarsdec code. The main difference in organization - and the reason that the acars-sdrplay code needs far more resources - is that the processing in the acarsdec code is done in the callbacks of the device handlers, while in the acars-sdrplay code the device handlers dump their data in a buffer and there are a few separate threads doing the processin.