Project

General

Profile

LimeSDR Family » History » Version 36

roh, 10/01/2019 01:21 PM

1 1 laforge
{{>toc}}
2
3 30 pespin
h1. LimeSDR USB
4 1 laforge
5 4 laforge
The "LimeSDR":https://myriadrf.org/projects/limesdr/ is a low-cost SDR board featuring the Lime Microsystems LMS7002 RF chip.
6
7 20 laforge
!{width:700px}LimeSDR_transp_3.jpg!
8
9 4 laforge
Key characteristics include:
10
* RF Transceiver: Lime Microsystems LMS7002M MIMO FPRF
11
* FPGA: Altera Cyclone IV EP4CE40F23 – also compatible with EP4CE30F23
12 6 ahuemer
* Memory: 256 MBytes DDR2 SDRAM
13 4 laforge
* USB 3.0 controller: Cypress USB 3.0 CYUSB3014-BZXC
14
* Oscillator: Rakon RPT7050A @ 30.72MHz
15
* Continuous frequency range: 100 kHz – 3.8 GHz
16
* Bandwidth: 61.44 MHz
17
* RF connection: 10 U.FL connectors (6 RX, 4 TX)
18
* Power Output (CW): up to 10 dBm
19
* Multiplexing: 2×2 MIMO
20
* Power: micro USB connector or optional external power supply
21
* Status indicators: programmable LEDs
22
* Dimensions: 100 mm x 60 mm
23 1 laforge
24 3 laforge
h2. RF Output Power
25
26
TBD
27 1 laforge
28
h2. Clock
29
30
The on-board clock is a 250ppb VCTCXO.  GSM strictly requires 30ppb, but 250ppb _should_  be sufficient for laboratory use.
31
32
h3. Clock Calibration
33
34
TBD
35
36
h3. Using external clock reference
37
38
TBD
39
40 19 pespin
h1. LimeSDR Mini
41
42
The "LimeSDR Mini":https://myriadrf.org/projects/limesdr/ is a smaller, less expensive version of the original LimeSDR.
43
44 22 laforge
!{width:600px}limesdr-mini-1024x561.jpg!
45
46 19 pespin
Key characteristics include:
47
* RF Transceiver: Lime Microsystems LMS7002M FPRF
48
* FPGA: Altera MAX 10 (10M16SAU169C8G)
49
* EEPROM memory: 2 x 128 KB for RF transciever MCU firmware and data
50
* Flash memory: 1 x 4 MB flash memory for data
51
* USB 3.0 controller: FTDI FT601
52
* Rakon 30.72 MHz VCTCXO
53
* Continuous frequency range: 10 MHz – 3.5 GHz
54
* Bandwidth: 30.72 MHz
55
* RF Connection: 2 x SMA connectors (each can be switched between high and low frequency bands) + 1x U.FL REF CLK
56
* Power Output (CW): up to 10 dBm
57
* Dimensions: 69 mm x 31.4 mm
58
59
h2. RF Output Power
60
61
TBD
62
63 35 roh
h1. LimeNet Micro
64 21 laforge
65 35 roh
!{width:700px}640px-LimeSDR-Micro_v2.1_board.png!
66 21 laforge
67 36 roh
LimeNet Micro is a small all-in-one board combining the sdr, a gpsdo and some rf filters with a raspberry pi compute module3.
68
Due to the integrated gpsdo it should have no problems running tdma networks like gsm.
69
70
setup: install default raspbian (see getting started link below) and osmocom latest or nightly feeds.
71
config: use LNAL or LNAH for rx-path, BAND1 for tx
72
73
h2. RF Output Power
74
75
* +7dB in gsm900 (arfcn 5)
76
* -5dB in dcs1800 (arfcn 871)
77
78
in dcs1800 a reduction in rx power improves phase noise (e.g. max_power_red 5)
79
80
h2. Clock
81
82
do not select a specific clock on LimeNet Micro. (remove clock-ref line)
83
when this type of hardware is detected osmo-trx defaults to the gps synchronized clock from the fpga (gpsdo).
84
see led4/led5 for gps status https://wiki.myriadrf.org/LimeNET-Micro_v2.1_hardware_description#Indication_LEDs
85
86
h2. further information
87
88
https://wiki.myriadrf.org/LimeNET_Micro
89
https://wiki.myriadrf.org/Getting_Started_with_the_LimeNET-Micro
90
https://wiki.myriadrf.org/LimeNET-Micro_v2.1_hardware_description
91 1 laforge
92 35 roh
h1. LimeSDR PCIe
93 21 laforge
94 35 roh
!{width:700px}limesdr-pcie-1-1_jpg_project-body.jpg!
95
96
TBD
97 34 roh
98 19 pespin
h1. OsmoTRX on LimeSDR
99 1 laforge
100 32 pespin
In terms of OsmoTRX for LimeSDR, we now have @osmo-trx-lms@ which avoids the previously complex driver stack with UHD, SoapyUHD, SoapySDR, etc. All you need in terms of specific dependencies is:
101
* "LimeSuite":https://github.com/myriadrf/LimeSuite.git containing the actual drivers and utilities for LimeSDR (*version 17.09 or later required*, last release @18.06.0@ or @master@ really advised)
102
** for LimeSDR-mini, you will need 17.10 or later (last release @18.06.0@ or @master@ really advised)
103 1 laforge
104 32 pespin
If your distro doesn't ship with a LimeSuite new enough, it is advised that you install LimeSuite from osmocom repositories, see [[cellular-infrastructure:MacroBinaryPackages]].
105
106
107 1 laforge
{{graphviz_link()
108 5 laforge
digraph G{
109
  rankdir = LR;
110 29 laforge
  LimeSDR -> LimeSuite [label = "USB/libusb"];
111 5 laforge
  LimeSuite -> OsmoTRX [label = "osmo-trx-lms"];
112
}
113 1 laforge
}}
114
115
h3. Verifying the driver stack
116
117
You can ensure that LimeSuite recognizes your device using the *LimeUtil* part of LimeSuite:
118
119
<pre>
120 18 pespin
$ LimeUtil --find
121
  * [LimeSDR-USB, media=USB 3.0, module=STREAM, addr=1d50:6108, serial=0009060B00xxyyzz]
122
</pre>
123 27 laforge
124 31 pespin
h3. Running osmo-trx-lms with LimeSDR
125
126 33 pespin
If @rt-prio@ is set in .cfg file, running as root may be required.
127 31 pespin
128
A sample cfg file to run @osmo-trx-lms@ with a LimeSDR device can be found in @osmo-trx.git@ in @doc/examples/osmo-trx-lms/osmo-trx-limesdr.cfg@.
129
130
<pre>
131
osmo-trx-lms -C osmo-trx.git/doc/examples/osmo-trx-lms/osmo-trx-limesdr.cfg
132
</pre>
133
134 27 laforge
h2. Other LimeSDR related information
135
136
{{child_pages()}}
Add picture from clipboard (Maximum size: 48.8 MB)