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Diffstat (limited to 'host/docs/dboards.rst')
| -rw-r--r-- | host/docs/dboards.rst | 78 |
1 files changed, 39 insertions, 39 deletions
diff --git a/host/docs/dboards.rst b/host/docs/dboards.rst index d41bf824c..29812592f 100644 --- a/host/docs/dboards.rst +++ b/host/docs/dboards.rst @@ -13,7 +13,7 @@ Eventually, this page will be expanded to list out the full properties of each board as well. ^^^^^^^^^^^^^^^^^^^^^^^^^^^ -Basic RX and and LFRX +Basic RX and LFRX ^^^^^^^^^^^^^^^^^^^^^^^^^^^ The Basic RX and LFRX boards have 4 frontends: @@ -23,21 +23,21 @@ The Basic RX and LFRX boards have 4 frontends: * **Frontend BA:** quadrature frontend using both antennas (QI) The boards have no tunable elements or programmable gains. -Though the magic of aliasing, you can down-convert signals +Through the magic of aliasing, you can down-convert signals greater than the Nyquist rate of the ADC. BasicRX Bandwidth (Hz): -* For Real-Mode (A or B frontend): 250M -* For Complex (AB or BA frontend): 500M +* **For Real-Mode (A or B frontend)**: 250M +* **For Complex (AB or BA frontend)**: 500M LFRX Bandwidth (Hz): -* For Real-Mode (A or B frontend): 33M -* For Complex (AB or BA frontend): 66M +* **For Real-Mode (A or B frontend)**: 33M +* **For Complex (AB or BA frontend)**: 66M ^^^^^^^^^^^^^^^^^^^^^^^^^^^ -Basic TX and and LFTX +Basic TX and LFTX ^^^^^^^^^^^^^^^^^^^^^^^^^^^ The Basic TX and LFTX boards have 4 frontends: @@ -47,30 +47,30 @@ The Basic TX and LFTX boards have 4 frontends: * **Frontend BA:** quadrature frontend using both antennas (QI) The boards have no tunable elements or programmable gains. -Though the magic of aliasing, you can up-convert signals +Through the magic of aliasing, you can up-convert signals greater than the Nyquist rate of the DAC. BasicTX Bandwidth (Hz): 250M -* For Real-Mode (A or B frontend): 250M -* For Complex (AB or BA frontend): 500M +* **For Real-Mode (A or B frontend**): 250M +* **For Complex (AB or BA frontend)**: 500M LFTX Bandwidth (Hz): 33M -* For Real-Mode (A or B frontend): 33M -* For Complex (AB or BA frontend): 66M +* **For Real-Mode (A or B frontend)**: 33M +* **For Complex (AB or BA frontend)**: 66M ^^^^^^^^^^^^^^^^^^^^^^^^^^^ DBSRX ^^^^^^^^^^^^^^^^^^^^^^^^^^^ The DBSRX board has 1 quadrature frontend. -It defaults to direct conversion, but can use a low IF through lo_offset in uhd::tune_request_t +It defaults to direct conversion but can use a low IF through lo_offset in **uhd::tune_request_t**. Receive Antennas: **J3** * **Frontend 0:** Complex baseband signal from antenna J3 -The board has no user selectable antenna setting +The board has no user selectable antenna setting. Receive Gains: @@ -87,13 +87,13 @@ Sensors: DBSRX2 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ The DBSRX2 board has 1 quadrature frontend. -It defaults to direct conversion, but can use a low IF through lo_offset in uhd::tune_request_t +It defaults to direct conversion, but can use a low IF through lo_offset in **uhd::tune_request_t**. Receive Antennas: **J3** * **Frontend 0:** Complex baseband signal from antenna J3 -The board has no user selectable antenna setting +The board has no user-selectable antenna setting. Receive Gains: @@ -109,9 +109,9 @@ Sensors: ^^^^^^^^^^^^^^^^^^^^^^^^^^^ RFX Series ^^^^^^^^^^^^^^^^^^^^^^^^^^^ -The RFX Series boards have 2 quadrature frontends, one transmit, one receive. -Transmit defaults to low IF and Receive defaults to direct conversion. -The IF can be adjusted through lo_offset in uhd::tune_request_t +The RFX Series boards have 2 quadrature frontends: Transmit and Receive. +Transmit defaults to low IF, and Receive defaults to direct conversion. +The IF can be adjusted through lo_offset in **uhd::tune_request_t**. The RFX Series boards have independent receive and transmit LO's and synthesizers allowing full-duplex operation on different transmit and receive frequencies. @@ -185,7 +185,7 @@ WBX Series ^^^^^^^^^^^^^^^^^^^^^^^^^^^ The WBX Series boards have 2 quadrature frontends, one transmit, one receive. Transmit and Receive default to direct conversion but -can be used in low IF mode through lo_offset in uhd::tune_request_t +can be used in low IF mode through lo_offset in **uhd::tune_request_t**. The WBX Series boards have independent receive and transmit LO's and synthesizers allowing full-duplex operation on different transmit and receive frequencies. @@ -218,7 +218,7 @@ SBX Series ^^^^^^^^^^^^^^^^^^^^^^^^^^^ The SBX Series boards have 2 quadrature frontends, one transmit, one receive. Transmit and Receive default to direct conversion but -can be used in low IF mode through lo_offset in uhd::tune_request_t +can be used in low IF mode through lo_offset in **uhd::tune_request_t**. The SBX Series boards have independent receive and transmit LO's and synthesizers allowing full-duplex operation on different transmit and receive frequencies. @@ -282,7 +282,7 @@ Receive Frontends: * **Frontend RX1:** real-mode baseband from antenna J100 * **Frontend RX2:** real-mode baseband from antenna J140 -Note: The TVRX2 has always-on AGC, the software controllable gain is the +Note: The TVRX2 has always-on AGC; the software controllable gain is the final gain stage which controls the AGC set-point for output to ADC. Receive Gains: @@ -303,8 +303,8 @@ Daughterboard Modifications Sometimes, daughterboards will require modification to work on certain frequencies or to work with certain hardware. -Modification usually involves moving/removing a SMT component -and burning a new daughterboard id into the eeprom. +Modification usually involves moving/removing an SMT component +and burning a new daughterboard ID into the EEPROM. ^^^^^^^^^^^^^^^^^^^^^^^^^^^ DBSRX - Mod @@ -319,13 +319,13 @@ over the standard daughterboard clock lines. **Step 1: Move the clock configuration resistor** -Remove R193 (which is 10 ohms, 0603 size) and put it on R194, which is empty. +Remove **R193** (which is 10 ohms, 0603 size), and put it on **R194**, which is empty. This is made somewhat more complicated by the fact that the silkscreen is not clear in that area. -R193 is on the back, immediately below the large beige connector, J2. -R194 is just below, and to the left of R193. -The silkscreen for R193 is ok, but for R194, +**R193** is on the back, immediately below the large beige connector, **J2**. +**R194** is just below, and to the left of **R193**. +The silkscreen for **R193** is ok, but for **R194**, it is upside down, and partially cut off. -If you lose R193, you can use anything from 0 to 10 ohms there. +If you lose **R193**, you can use anything from 0 to 10 ohms there. **Step 2: Burn a new daughterboard id into the EEPROM** @@ -335,8 +335,8 @@ With the daughterboard plugged-in, run the following commands: cd <install-path>/share/uhd/utils ./usrp_burn_db_eeprom --id=0x000d --unit=RX --args=<args> --slot=<slot> -* <args> are device address arguments (optional if only one USRP is on your machine) -* <slot> is the name of the daughterboard slot (optional if the USRP has only one slot) +* **<args>** are device address arguments (optional if only one USRP is on your machine) +* **<slot>** is the name of the daughterboard slot (optional if the USRP has only one slot) ^^^^^^^^^^^^^^^^^^^^^^^^^^^ RFX - Mod @@ -347,14 +347,14 @@ Please follow the modification procedures below: **Step 1: Disable the daughterboard clocks** -Move R64 to R84, Move R142 to R153 +Move **R64** to **R84**. Move **R142** to **R153**. **Step 2: Connect the motherboard blocks** -Move R35 to R36, Move R117 to R115 -These are all 0-ohm, so if you lose one, just short across the appropriate pads +Move **R35** to **R36**. Move **R117** to **R115**. +These are all 0-ohm, so if you lose one, just short across the appropriate pads. -**Step 3: Burn the appropriate daughterboard id into the EEPROM** +**Step 3: Burn the appropriate daughterboard ID into the EEPROM** With the daughterboard plugged-in, run the following commands: :: @@ -363,19 +363,19 @@ With the daughterboard plugged-in, run the following commands: ./usrp_burn_db_eeprom --id=<rx_id> --unit=RX --args=<args> --slot=<slot> ./usrp_burn_db_eeprom --id=<tx_id> --unit=TX --args=<args> --slot=<slot> -* <rx_id> choose the appropriate RX ID for your daughterboard +* **<rx_id>** choose the appropriate RX ID for your daughterboard * **RFX400:** 0x0024 * **RFX900:** 0x0025 * **RFX1800:** 0x0034 * **RFX1200:** 0x0026 * **RFX2400:** 0x0027 -* <tx_id> choose the appropriate TX ID for your daughterboard +* **<tx_id>** choose the appropriate TX ID for your daughterboard * **RFX400:** 0x0028 * **RFX900:** 0x0029 * **RFX1800:** 0x0035 * **RFX1200:** 0x002a * **RFX2400:** 0x002b -* <args> are device address arguments (optional if only one USRP is on your machine) -* <slot> is the name of the daughterboard slot (optional if the USRP has only one slot) +* **<args>** are device address arguments (optional if only one USRP is on your machine) +* **<slot>** is the name of the daughterboard slot (optional if the USRP has only one slot) |