| Pau Espin Pedrol | 46560ea | 2018-09-20 15:03:19 +0200 | [diff] [blame] | 1 | [[trx_backends]] |
| 2 | == OsmoTRX backend support |
| 3 | |
| Pau Espin Pedrol | 6b50b62 | 2018-09-19 17:05:30 +0200 | [diff] [blame] | 4 | [[backend_uhd]] |
| Pau Espin Pedrol | 46560ea | 2018-09-20 15:03:19 +0200 | [diff] [blame] | 5 | === `osmo-trx-uhd` for UHD based Transceivers |
| Pau Espin Pedrol | d06172c | 2018-07-05 18:26:52 +0200 | [diff] [blame] | 6 | |
| 7 | This OsmoTRX model uses _libuhd_ (UHD, USRP Hardware Driver) to drive the |
| 8 | device, that is configuring it and reading/writing samples from/to it. |
| 9 | |
| 10 | So far, this backend has been mostly used to drive devices such as the Ettus |
| 11 | B200 family and Fairwaves UmTRX family, and used to be the default backend used |
| 12 | for legacy @osmo-trx@ binary when per-backend binaries didn't exist yet. |
| 13 | |
| 14 | Any device providing generic support for UHD should theoretically be able to be |
| 15 | run through this backend without much effort, but pracitcal experience showed |
| 16 | that some devices don't play well with it, such as the LimeSDR family of |
| 17 | devices, which showed far better results when using its native interface. |
| 18 | |
| 19 | Related code can be found in the _Transceiver52M/device/uhd/_ directory in |
| 20 | _osmo-trx.git_. |
| 21 | |
| Pau Espin Pedrol | 6b50b62 | 2018-09-19 17:05:30 +0200 | [diff] [blame] | 22 | [[backend_lms]] |
| Pau Espin Pedrol | 46560ea | 2018-09-20 15:03:19 +0200 | [diff] [blame] | 23 | === `osmo-trx-lms` for LimeSuite based Transceivers |
| Pau Espin Pedrol | d06172c | 2018-07-05 18:26:52 +0200 | [diff] [blame] | 24 | |
| 25 | This OsmoTRX model uses LimeSuite API and library to drive the device, that is |
| 26 | configuring it and reading/writing samples from/to it. |
| 27 | |
| 28 | This backend was developed in order to be used together with LimeSDR-USB and |
| 29 | LimeSDR-mini devices, due to to the poor results obtained with the UHD backend, |
| 30 | and to simplify the stack. |
| 31 | |
| 32 | Related code can be found in the _Transceiver52M/device/lms/_ directory in |
| 33 | _osmo-trx.git_. |
| 34 | |
| Pau Espin Pedrol | 6b50b62 | 2018-09-19 17:05:30 +0200 | [diff] [blame] | 35 | [[backend_usrp1]] |
| Pau Espin Pedrol | 46560ea | 2018-09-20 15:03:19 +0200 | [diff] [blame] | 36 | === `osmo-trx-usrp1` for libusrp based Transceivers |
| Pau Espin Pedrol | d06172c | 2018-07-05 18:26:52 +0200 | [diff] [blame] | 37 | |
| 38 | This OsmoTRX model uses the legacy libusrp driver provided in GNU Radio 3.4.2. |
| 39 | |
| 40 | As this code was dropped from GNU Radio at some point and was found very |
| 41 | difficult to build, some work was done to create a standalone libusrp which can |
| 42 | be nowadays found as a separate git repository together with other osmocom git |
| 43 | repositories, in https://git.osmocom.org/libusrp/ |
| 44 | |
| 45 | Related code can be found in the _Transceiver52M/device/usrp1/_ directory in |
| 46 | _osmo-trx.git_. |