Difference between revisions of "OpenBTS: E110 Mengubah Master Clock"

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Line 10: Line 10:
  
 
Untuk menggunakan 61.44MHz clock rate dengan USRP-Embedded, dua jumper harus di ubah di device.
 
Untuk menggunakan 61.44MHz clock rate dengan USRP-Embedded, dua jumper harus di ubah di device.
 +
 +
J16 sebuah 2 pin header, cabut jumper (atau biarkan hanya di pin1 saja)
 +
J15 sebuah 3 pin header, pindahkan jumper ke (pin1, pin2)
 +
 +
==Set 52MHz - menggunakan external VCXO==
 +
 +
Untuk menggunakan 52MHz clock rate dengan USRP-Embedded, dua jumper harus di ubah di device.
  
 
  J16 sebuah 2 pin header, cabut jumper (atau biarkan hanya di pin1 saja)
 
  J16 sebuah 2 pin header, cabut jumper (atau biarkan hanya di pin1 saja)
Line 40: Line 47:
 
==Mengubah Melalui Source Code UHD==
 
==Mengubah Melalui Source Code UHD==
  
−
'''NAGA-NAGA CARA INI CUKUP OK'''
+
Cara ini di perlukan supaya USRPPing tidak rewel.
 +
 
 +
===Download===
 +
 
 +
opkg remove --force-depends uhd uhd-dev uhd-examples uhd-tests
 +
echo "/usr/local/lib" >> /etc/ld.so.conf
 +
cd ~/src
 +
git clone git://ettus.sourcerepo.com/ettus/uhd.git uhd.git
  
 
===e100_impl.hpp===
 
===e100_impl.hpp===
Line 51: Line 65:
 
Ubah
 
Ubah
  
−
  static const double E100_DEFAULT_CLOCK_RATE = 64e6;
+
  // static const double E100_DEFAULT_CLOCK_RATE = 64e6;
−
 
 
−
menjadi
 
−
 
 
 
  static const double E100_DEFAULT_CLOCK_RATE = '''52e6''';
 
  static const double E100_DEFAULT_CLOCK_RATE = '''52e6''';
  
Line 67: Line 78:
 
  ("E110", "usrp_e110_fpga.bin")
 
  ("E110", "usrp_e110_fpga.bin")
  
−
Compile Ulang
+
===Compile===
 +
 
  
 
  cd ~/src/uhd.git/host/
 
  cd ~/src/uhd.git/host/
Line 74: Line 86:
 
  cmake -DCMAKE_CXX_FLAGS:STRING="-mcpu=cortex-a8 -mfpu=neon -mfloat-abi=softfp -g" -DENABLE_USRP_E100=TRUE -DENABLE_E100=ON -DENABLE_USRP_E_UTILS=TRUE -DENABLE_USB=OFF -DENABLE_USRP2=OFF ../
 
  cmake -DCMAKE_CXX_FLAGS:STRING="-mcpu=cortex-a8 -mfpu=neon -mfloat-abi=softfp -g" -DENABLE_USRP_E100=TRUE -DENABLE_E100=ON -DENABLE_USRP_E_UTILS=TRUE -DENABLE_USB=OFF -DENABLE_USRP2=OFF ../
 
  make
 
  make
−
make test
 
 
  make install
 
  make install
−
  ldconfig
+
 
 +
HACK sedikit
 +
 
 +
  PATH=$PATH:/usr/local/bin
 +
export PATH
 +
 
 +
cp ~/src/uhd.git/host/build/lib/libuhd.so* /usr/lib
 +
cp -Rf /usr/share/uhd/images/ /usr/local/share/uhd/
  
 
Coba di test hasilnya
 
Coba di test hasilnya
Line 100: Line 118:
 
  --  
 
  --  
 
  -- Performing wishbone readback test... pass
 
  -- Performing wishbone readback test... pass
 +
 +
===Compatibility Error===
 +
 +
Kalau keluar Error
 +
 +
-- Performing wishbone readback test... pass
 +
Error: RuntimeError: Expected FPGA compatibility number 9, but got 8:
 +
The FPGA build is not compatible with the host code build.
 +
 +
'''SOLUSI:'''
 +
 +
Lakukan [[OpenBTS: E110 Install UHD Image | Instalasi UHD Image]]
 +
Tepatnya, download dari
 +
 +
http://files.ettus.com/binaries/master_images/
 +
http://files.ettus.com/binaries/next_images/
 +
http://files.ettus.com/binaries/uhd_stable/
 +
 +
tar zxvf uhd-images_003.004.003-205-g4896bf78.tar.gz
 +
cd uhd-images_003.004.003-205-g4896bf78/share/uhd/images/
 +
cp -Rf * /usr/share/uhd/images/
 +
cp -Rf * /usr/local/share/uhd/images/
 +
 +
 +
===Error Clock===
 +
 +
Jika keluar Clock Error berikut
 +
 +
UHD Error:
 +
    The FPGA is either clocked improperly
 +
    or the FPGA build is not compatible.
 +
    Subsequent errors may follow...
 +
 +
'''SOLUSI:'''
 +
Belum tahu
  
 
==Referensi==
 
==Referensi==
  
 
* http://files.ettus.com/uhd_docs/manual/html/usrp_e1xx.html
 
* http://files.ettus.com/uhd_docs/manual/html/usrp_e1xx.html
−
* http://comments.gmane.org/gmane.comp.hardware.usrp.e100/2448 - perubahan menggunakan UHD tidak permanen, harus dari EEPROM kalau mau permanen.
+
* http://comments.gmane.org/gmane.comp.hardware.usrp.e100/2448 - perubahan menggunakan [[UHD]] tidak permanen, harus dari [[EEPROM]] kalau mau permanen.
  
 
==Pranala Menarik==
 
==Pranala Menarik==
  
 
* [[OpenBTS]]
 
* [[OpenBTS]]
 +
* [[OpenBTS: Arsitektur secara umum]]
  
 
===Persiapan===
 
===Persiapan===
Line 116: Line 170:
 
* [[USRP: Kalibrasi ClockTamer]]
 
* [[USRP: Kalibrasi ClockTamer]]
 
* [[USRP: ClockTamer Control Protocol]]
 
* [[USRP: ClockTamer Control Protocol]]
 +
* [[USRP: ClockTamer Flashing]]
 
* [[USRP: Instalasi Board]]
 
* [[USRP: Instalasi Board]]
 
* [[OpenBTS: GIT Source Code]]
 
* [[OpenBTS: GIT Source Code]]
 +
* [[USRP: Rangkaian Board USRP]]
 +
* [[OpenBTS: Tethr untuk Bencana Alam]]
 +
* [[USRP: Tip Pemesanan]]
 +
 +
===Script===
 +
 +
* [[OpenBTS: Script Membuat GNURadio 3.4.2 di Ubuntu 13.04]]
 +
* [[OpenBTS: Script Membuat OpenBTS dan yate di Ubuntu 13.04]]
 +
* [[OpenBTS: Script Membuat OpenBTS 2.8.0 di RangeNetwork Dev Kit]]
 +
* [[OpenBTS: Script Membuat OpenBTS di RangeNetwork Dev Kit]]
  
 
===OpenBTS 2.6===
 
===OpenBTS 2.6===
Line 123: Line 188:
 
* [[GNURadio]]
 
* [[GNURadio]]
 
* [[GNURadio: Ubuntu Install]]
 
* [[GNURadio: Ubuntu Install]]
−
* [[GNURadio: Ubuntu Install GNURadio 3.4.2]]
+
* [[GNURadio: Menggunakan UHD]]
 +
* [[GNURadio: Ubuntu Install GNURadio 3.4.2]] '''RECOMMENDED'''
 +
* [[GNURadio: Ubuntu Install GNURadio 3.4.2 Clock 52MHz]] '''RECOMMENDED'''
 +
* [[GNURadio: Ubuntu 13.04 Install GNURadio 3.4.2 Clock 52MHz]] ''NOT RECOMMENDED''
 
* [[GNURadio: Contoh Aplikasi]]
 
* [[GNURadio: Contoh Aplikasi]]
 
* [[GNURadio: Spectrum Analizer GSM]]
 
* [[GNURadio: Spectrum Analizer GSM]]
 
* [[GNURadio: Mengubah board RFX1800 menjadi RFX900]]
 
* [[GNURadio: Mengubah board RFX1800 menjadi RFX900]]
 
* [[GNURadio: Programming Untuk Pemula]]
 
* [[GNURadio: Programming Untuk Pemula]]
−
* [[OpenBTS: Ubuntu Install]]
+
* [[OpenBTS: Ubuntu Install]] '''RECOMMENDED'''
−
* [[OpenBTS: Konfigurasi]]
+
* [[OpenBTS: Ubuntu Install OpenBTS 2.6 Clock 52MHz]] '''RECOMMENDED'''
 +
* [[OpenBTS: Ubuntu 13.04 Install OpenBTS 2.6 Clock 52MHz]] ''NOT RECOMMENDED''
 +
* [[OpenBTS: Konfigurasi]] '''RECOMMENDED'''
 
* [[OpenBTS: Kalibrasi]]
 
* [[OpenBTS: Kalibrasi]]
−
* [[OpenBTS: Konfigurasi Asterisk untuk OpenBTS]]
+
* [[OpenBTS: Konfigurasi Asterisk untuk OpenBTS]] '''RECOMMENDED'''
 
* [[OpenBTS: Menjalankan smqueue]]
 
* [[OpenBTS: Menjalankan smqueue]]
−
* [[OpenBTS: Mengoperasikan BTS]]
+
* [[OpenBTS: Mengoperasikan BTS]] '''RECOMMENDED'''
 
* [[OpenBTS: Tampilan di Nokia saat pakai OpenBTS]]
 
* [[OpenBTS: Tampilan di Nokia saat pakai OpenBTS]]
 
* [[OpenBTS: Operasi 1800 MHz]]
 
* [[OpenBTS: Operasi 1800 MHz]]
Line 144: Line 214:
 
===OpenBTS 2.8===
 
===OpenBTS 2.8===
  
−
* [[GNURadio: Ubuntu 11.10 Install]] '''*NOT RECOMMENED*'''
+
* [[GNURadio: Ubuntu 11.10 Install]] ''NOT RECOMMENED''
−
* [[GNURadio: Ubuntu 11.10 instalasi menggunakan Repo]] '''NOT RECOMMENDED'''
+
* [[GNURadio: Ubuntu 11.10 instalasi menggunakan Repo]] ''NOT RECOMMENDED''
 +
* [[GNURadio: Download GNURadio]]
 +
* [[GNURadio: Install UHD]]
 
* [[GNURadio: Ubuntu 11.10 Instal GNURadio 3.3.0]]
 
* [[GNURadio: Ubuntu 11.10 Instal GNURadio 3.3.0]]
−
* [[GNURadio: Ubuntu 11.10 Instal GNURadio 3.4.2]]
+
* [[GNURadio: Ubuntu 12.10 Instal GNURadio 3.3.0]]
−
* [[GNURadio: Ubuntu 11.10 Install dari GIT GNURadio]]
+
* [[GNURadio: Ubuntu 12.10 Instal GNURadio 3.4.1]] ''NOT RECOMMENDED''
 +
* [[GNURadio: Ubuntu 11.10 Instal GNURadio 3.4.2]] '''RECOMMENDED'''
 +
* [[GNURadio: Ubuntu 12.04 Instal GNURadio 3.4.2]] '''RECOMMENDED'''
 +
* [[GNURadio: Ubuntu 12.04.1 Instal GNURadio 3.4.2]] '''RECOMMENDED'''
 +
* [[GNURadio: Ubuntu 12.10 Instal GNURadio 3.4.2]] ''NOT RECOMMENDED''
 +
* [[GNURadio: Ubuntu 13.04 Instal GNURadio 3.4.2]] '''RECOMMENDED'''
 +
* [[GNURadio: Ubuntu 11.10 Instal GNURadio 3.5.0]] ''NOT RECOMMENDED''
 +
* [[GNURadio: Ubuntu 11.10 Instal GNURadio 3.5.3.2]] ''NOT RECOMMENDED''
 +
* [[GNURadio: Ubuntu 11.10 Instal GNURadio 3.6.0]] ''NOT RECOMMENDED''
 +
* [[GNURadio: Ubuntu 11.10 Install dari GIT GNURadio]] ''NOT RECOMMENDED''
 +
* [[GNURadio: Ubuntu 11.10 cek USRP Daughter Board]]
 +
* [[GNURadio: UHD]] ''NOT RECOMMENDED''
 +
* [[GNURadio: UHD Image]] ''NOT RECOMMENDED''
 +
* [[GNURadio: UHD burn EEPROM RFX Board di USRP1]] ''NOT RECOMMENDED''
 +
* [[GNURadio: UHD Identifikasi Device]]
 
* [[OpenBTS: Ubuntu 11.10 Install]]
 
* [[OpenBTS: Ubuntu 11.10 Install]]
−
* [[OpenBTS: 2.8 dari SVN Install]] '''RECOMMENDED'''
+
* [[OpenBTS: dari GIT ttsou]]
−
* [[OpenBTS: 2.8 Instalasi Real Time Asterisk]]
+
* [[OpenBTS: 2.8 dari SVN Install]]
 +
* [[OpenBTS: 2.8 dari SVN Install Clock 52MHz]] '''RECOMMENDED'''
 +
* [[OpenBTS: 2.8 dari SVN Install Clock 52MHz di Ubuntu 12.10]] '''RECOMMENDED'''
 +
* [[OpenBTS: 2.8 dari SVN Install Clock 52MHz di Ubuntu 13.04]] '''RECOMMENDED'''
 +
* [[OpenBTS: 2.8 dari SVN 2.8.0 Install Clock 52MHz di Ubuntu 13.04]] '''RECOMMENDED'''
 +
* [[OpenBTS: 2.8 dari SVN Install Clock 52MHz dengan UHD tanpa GNURadio]] ''NOT RECOMMENDED''
 +
* [[OpenBTS: 2.8 Edit User di sqlite3.db]] '''RECOMMEND'''
 +
* [[OpenBTS: Yate Softswitch]] '''RECOMMENDED'''
 +
* [[OpenBTS: Yate Softswitch install Ubuntu 12.10]] '''RECOMMENDED'''
 +
* [[OpenBTS: Yate Softswitch install Ubuntu 13.04]] '''RECOMMENDED'''
 +
* [[OpenBTS: Yate Config Test]]
 +
* [[OpenBTS: 2.8 Instalasi Real Time Asterisk]] '''RECOMMENDED'''
 +
* [[OpenBTS: 2.8 Menjalankan]] '''RECOMMENDED'''
 
* [[OpenBTS: 2.8 Konfigurasi]]
 
* [[OpenBTS: 2.8 Konfigurasi]]
 +
* [[OpenBTS: 2.8 Konfigurasi Cognitive Radio Elsabagh]]
 +
* [[OpenBTS: 2.8 Konfigurasi Subscriber Registery]]
 
* [[OpenBTS: Database SQLite]]
 
* [[OpenBTS: Database SQLite]]
 +
* [[OpenBTS: Set SQLite Subscriber Registry secara manual]]
 +
* [[OpenBTS: Set SQLite parameter smqueue]]
 +
* [[OpenBTS: FreeSWITCH]]
 +
 +
===Multi OpenBTS 2.8===
 +
 +
* [[OpenBTS: Pola Multi OpenBTS]] '''RECOMMENDED'''
 +
* [[Multi OpenBTS: Catatan Konfigurasi]] '''RECOMMENDED'''
 +
* [[Multi OpenBTS: Catatan BSIC=NCC+BCC]]
 +
* [[Multi OpenBTS: Catatan Frekuensi Planning di GSM]]
 +
* [[Multi OpenBTS: Catatan BTS Color Code BCC di GSM]]
 +
* [[Multi OpenBTS: Catatan Network Color Code NCC di GSM]]
 +
* [[Multi OpenBTS: Catatan BCCH]]
 +
* [[Multi OpenBTS: Catatan Public Land Mobile Network PLMN]]
 +
 +
===OpenBTS 3.1.x===
 +
 +
* [[OpenBTS: Install UHD untuk USRP1]]
 +
* [[OpenBTS: UHD Identifikasi Device]]
 +
* [[OpenBTS: OpenBTS 3.1.3 Compile]] '''Tidak bisa untuk USRP1'''
 +
* [[OpenBTS: Yate Compile]]
  
 
===Ettus E110===
 
===Ettus E110===
  
 
* [[OpenBTS: E110 Cara Login]]
 
* [[OpenBTS: E110 Cara Login]]
−
* [[OpenBTS: E110 Install Image di MicroSD]]
+
* [[OpenBTS: E110 Install Image di MicroSD]] '''*RECOMMENDED*'''
 
* [[OpenBTS: E110 Cek Daughter Board]]
 
* [[OpenBTS: E110 Cek Daughter Board]]
 
* [[OpenBTS: E110 Mengubah Master Clock]]
 
* [[OpenBTS: E110 Mengubah Master Clock]]
 
* [[OpenBTS: E110 Kalibrasi Clock]]
 
* [[OpenBTS: E110 Kalibrasi Clock]]
 +
* [[OpenBTS: E110 Konfigurasi Jaringan]]
 
* [[OpenBTS: E110 Bekerja dengan opkg]]
 
* [[OpenBTS: E110 Bekerja dengan opkg]]
 +
* [[OpenBTS: E110 Instalasi iptables]]
 
* [[OpenBTS: E110 GNURadio]]
 
* [[OpenBTS: E110 GNURadio]]
−
* [[OpenBTS: E110 Install UHD Image]]
+
* [[OpenBTS: E110 Compile UHD]] ''Not Recommended''
 +
* [[OpenBTS: E110 Compile UHD dari Release Bukan git]] ''Not Recommended''
 +
* [[OpenBTS: E110 UHD burn EEPROM RFX Board]] ''Not Recommended''
 +
* [[OpenBTS: E110 Install UHD Image]] ''Not Recommended''
 
* [[OpenBTS: E110 Instalasi OpenBTS]]
 
* [[OpenBTS: E110 Instalasi OpenBTS]]
−
* [[OpenBTS: E110 Instalasi OpenBTS 2.6]] '''*NOT RECOMMENDED*'''
+
* [[OpenBTS: E110 Instalasi OpenBTS 2.6]] ''NOT RECOMMENDED''
 +
* [[OpenBTS: E110 Instalasi OpenBTS 2.8 untuk MultiBTS]] '''*RECOMMENDED*'''
 +
* [[OpenBTS: E110 Yate Softswitch]]
 +
 
 +
===Ettus N210===
 +
 
 +
* [[OpenBTS: N210 Instalasi GPSDO Kit]]
 +
* [[OpenBTS: N210 GNURadio]]
 +
* [[OpenBTS: N210 GNURadio 3.7.0]]
 +
* [[OpenBTS: N210 Instalasi OpenBTS]]
 +
* [[OpenBTS: N210 Instalasi Yate]]
 +
* [[OpenBTS: N210 Yate Config Test]]
 +
* [[OpenBTS: N210 Burn Firmware]]
 +
 
 +
===RangeNetworks===
 +
 
 +
* [[OpenBTS: RangeNetwork Foto]]
 +
* [[OpenBTS: RangeNetwork menggunakan USB recovery image]]
 +
* [[OpenBTS: RangeNetwork Default Setting]]
 +
* [[OpenBTS: RangeNetwork Instalasi UHD]]
 +
* [[OpenBTS: RangeNetwork Compile GNURadio UHD]]
 +
* [[OpenBTS: RangeNetwork Compile]]
 +
* [[OpenBTS: RangeNetwork Compile OpenBTS 2.8.0]]
 +
* [[OpenBTS: RangeNetwork Compile OpenBTS 3.1.3]]
 +
* [[OpenBTS: RangeNetwork Yate Compile]] '''*RECOMMENDED*'''
 +
* [[OpenBTS: RangeNetwork Web Interface]]
 +
* [[OpenBTS: RangeNetwork Trunk ke Asterisk Lain]]
 +
* [[OpenBTS: RangeNetwork Audit]]
 +
* [[VoIP: Trunk]]
 +
 
 +
===GPRS===
 +
 
 +
* [[OpenBTS: GPRS]]
 +
* [[OpenBTS: GPRS Konfigurasi]]
 +
* [[OpenBTS: GPRS untuk dibelakang Router dengan NAT]]
 +
 
 +
===Briker OpenBTS===
 +
 
 +
* [[OpenBTS: Briker]]
 +
 
 +
===FreeSWITCH OpenBTS===
 +
 
 +
* [[OpenBTS: FreeSWITCH]]
 +
 
 +
===Power Amplifier===
 +
 
 +
* [[Driver 900MHz]]
 +
* [[Power Amplifier 900MHz]]
 +
* [[Duplexer]]
 +
* [[OpenBTS: Menaikan Jangkauan OpenBTS]]
  
 
===Lain Lain===
 
===Lain Lain===
  
 +
* [[OpenBTS: Materi Magang di ICTWATCH]]
 +
* [[OpenBTS: Seminar Outline]]
 +
* [[OpenBTS: Workshop Outline]]
 
* [[Membuat Base Station GSM Open Source]]
 
* [[Membuat Base Station GSM Open Source]]
 
* [[Teknologi Selular]]
 
* [[Teknologi Selular]]
Line 185: Line 363:
 
* [[Siapa Bilang OpenBTS Ilegal?]]
 
* [[Siapa Bilang OpenBTS Ilegal?]]
 
* [[OpenBTS: Catatan MNC dan MCC Indonesia]]
 
* [[OpenBTS: Catatan MNC dan MCC Indonesia]]
 +
* [[OpenBTS: Catatan MNC dan MCC COOL]]
 
* [[OpenBTS : Alokasi Frekuensi Operator GSM Indonesia]]
 
* [[OpenBTS : Alokasi Frekuensi Operator GSM Indonesia]]
 +
* [[GSM: Daftar Channel Frekuensi]]
  
 
===Catatan Sejarah===
 
===Catatan Sejarah===
Line 192: Line 372:
 
* [[OpenBTS: Daftar Workshop atau Seminar yang pernah dilakukan]]
 
* [[OpenBTS: Daftar Workshop atau Seminar yang pernah dilakukan]]
 
* [[OpenBTS: Daftar Artikel di Media]]
 
* [[OpenBTS: Daftar Artikel di Media]]
 +
* [[OpenBTS: Permohonan Kanal dan DID untuk OpenBTS]]
 +
* [[OpenBTS: 2013/02/19 - OpenBTS TelkomSel Mengudara di Muscat Oman]]
 +
* [[OpenBTS: Beroperasi di Papua]]
 +
 +
===Dokumentasi Video===
 +
 +
* http://www.metrotvnews.com/read/newsprograms/2012/10/14/14624/212/Teknologi-BTS
 +
* http://youtu.be/8ogOcUSpINU (1/6)
 +
* http://youtu.be/F5d7HGuhppk (2/6)
 +
* http://youtu.be/90Jgq6bOgrQ (3/6)
 +
* http://youtu.be/cNkx_qNqdfc (4/6)
 +
* http://youtu.be/6LCuoeI57ak (5/6)
 +
* http://youtu.be/-dEqcHoIlYk (6/6)
 +
* http://www.youtube.com/watch?v=Ff_rw4kAOZg&feature=share
 +
 +
===Perjuangan OpenBTS===
 +
 +
* http://www.technologyreview.com/news/522371/how-remote-places-can-get-cellular-coverage-by-doing-it-themselves/?utm_campaign=socialsync&utm_medium=social-post&utm_source=twitter
 +
 +
  
 
[[Category: Wireless]]
 
[[Category: Wireless]]
 
[[Category: Selular]]
 
[[Category: Selular]]

Latest revision as of 05:59, 11 March 2014

Mengubah Master Clock Rate

master clock dari USRP-Embedded dimasukan langsung ke FPGA DSP dan codec chip. Ada ratusan pilihan kecepatan antara 32MHz dan 64MHz. Beberapa clock yang menarik adalah,

  • 64MHz - maximum rate dari codec chip
  • 61.44MHz - bagus untuk aplikasi UMTS/WCDMA
  • 52Mhz - bagus untuk aplikasi GSM

Set 61.44MHz - menggunakan external VCXO

Untuk menggunakan 61.44MHz clock rate dengan USRP-Embedded, dua jumper harus di ubah di device. 

J16 sebuah 2 pin header, cabut jumper (atau biarkan hanya di pin1 saja)
J15 sebuah 3 pin header, pindahkan jumper ke (pin1, pin2)

Set 52MHz - menggunakan external VCXO

Untuk menggunakan 52MHz clock rate dengan USRP-Embedded, dua jumper harus di ubah di device. 

J16 sebuah 2 pin header, cabut jumper (atau biarkan hanya di pin1 saja)
J15 sebuah 3 pin header, pindahkan jumper ke (pin1, pin2)

Set ke rate lainnya - menggunakan internal VCO

CARA INI TIDAK PERMANEN

Untuk menggunakan clock rate lainnya, jumper harus di posisi default. 

J16 sebuah 2 pin header, pindahkan jumper ke (pin1, pin2)
J15 sebuah 3 pin header, pindahkan jumper ke (pin2, pin3)

Untuk berkomunikasi dengan clock rate yang kita inginkan ke UHD, kita perlu memasukan special device address argument, dengan kata kunci "master_clock_rate" dan nilai dalam Hz, contoh: 

uhd_usrp_probe --args="master_clock_rate=52e6"

Menggunakan Reference Clock 10MHz

The E1xx mempunyai 10MHz TCXO yang dapat digunakan untuk mendisiplin flexible clocking dengan cara memilih REF_INT untuk clock_config_t.

Alternatif-nya, sebuah reference clock external 10MHz dapat digunakan,

  • Sambungkan konektor J10 (REF_IN) membutuhkan konektor MCX untuk menyambungkan WM5541-ND atau yang equivalen.
  • Square wave akan memberikan phase noise performance yang terbaik, tapi sinus juga OK.
  • Power level: 0 to 15dBm
  • Select REF_SMA di clock_config_t

Mengubah Melalui Source Code UHD

Cara ini di perlukan supaya USRPPing tidak rewel.

Download

opkg remove --force-depends uhd uhd-dev uhd-examples uhd-tests
echo "/usr/local/lib" >> /etc/ld.so.conf
cd ~/src
git clone git://ettus.sourcerepo.com/ettus/uhd.git uhd.git

e100_impl.hpp

Edit file 

cd ~/src/uhd.git/host/lib/usrp/e100
vi e100_impl.hpp

Ubah 

// static const double E100_DEFAULT_CLOCK_RATE = 64e6;
static const double E100_DEFAULT_CLOCK_RATE = 52e6;

e100_impl.cpp

Edit file 

vi ~/src/uhd.git/host/lib/usrp/e100/e100_impl.cpp

Cek ada 

("E110", "usrp_e110_fpga.bin")

Compile

cd ~/src/uhd.git/host/
mkdir build
cd ~/src/uhd.git/host/build
cmake -DCMAKE_CXX_FLAGS:STRING="-mcpu=cortex-a8 -mfpu=neon -mfloat-abi=softfp -g" -DENABLE_USRP_E100=TRUE -DENABLE_E100=ON -DENABLE_USRP_E_UTILS=TRUE -DENABLE_USB=OFF -DENABLE_USRP2=OFF ../
make
make install

HACK sedikit 

PATH=$PATH:/usr/local/bin
export PATH

cp ~/src/uhd.git/host/build/lib/libuhd.so* /usr/lib
cp -Rf /usr/share/uhd/images/ /usr/local/share/uhd/

Coba di test hasilnya 

uhd_usrp_probe

Hasilnya harus 

linux; GNU C++ version 4.5.3 20110311 (prerelease); Boost_104500; UHD_003.004.000-7dc76db

-- Opening device node /dev/usrp_e0...
-- Initializing FPGA clock to 52.000000MHz...
-- USRP-E100 clock control: 12
--   r_counter: 2
--   a_counter: 4
--   b_counter: 19
--   prescaler: 8
--   vco_divider: 2
--   chan_divider: 15
--   vco_rate: 1560.000000MHz
--   chan_rate: 780.000000MHz
--   out_rate: 52.000000MHz
-- 
-- Performing wishbone readback test... pass

Compatibility Error

Kalau keluar Error 

-- Performing wishbone readback test... pass
Error: RuntimeError: Expected FPGA compatibility number 9, but got 8:
The FPGA build is not compatible with the host code build.

SOLUSI:

Lakukan Instalasi UHD Image Tepatnya, download dari 

http://files.ettus.com/binaries/master_images/
http://files.ettus.com/binaries/next_images/
http://files.ettus.com/binaries/uhd_stable/

tar zxvf uhd-images_003.004.003-205-g4896bf78.tar.gz
cd uhd-images_003.004.003-205-g4896bf78/share/uhd/images/
cp -Rf * /usr/share/uhd/images/
cp -Rf * /usr/local/share/uhd/images/


Error Clock

Jika keluar Clock Error berikut 

UHD Error:
    The FPGA is either clocked improperly
    or the FPGA build is not compatible.
    Subsequent errors may follow...

SOLUSI: Belum tahu

Referensi

Pranala Menarik

Persiapan

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OpenBTS 2.6

OpenBTS 2.8

Multi OpenBTS 2.8

OpenBTS 3.1.x

Ettus E110

Ettus N210

RangeNetworks

GPRS

Briker OpenBTS

FreeSWITCH OpenBTS

Power Amplifier

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Dokumentasi Video

Perjuangan OpenBTS

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