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Diffstat (limited to 'host/docs/dboards.rst')
| -rw-r--r-- | host/docs/dboards.rst | 58 |
1 files changed, 54 insertions, 4 deletions
diff --git a/host/docs/dboards.rst b/host/docs/dboards.rst index d93fb9d6a..7f205c404 100644 --- a/host/docs/dboards.rst +++ b/host/docs/dboards.rst @@ -26,9 +26,13 @@ The boards have no tunable elements or programmable gains. Though the magic of aliasing, you can down-convert signals greater than the Nyquist rate of the ADC. -BasicRX Bandwidth (Hz): 250M +BasicRX Bandwidth (Hz): + For Real-Mode (A or B subdevice): 250M + For Complex (AB or BA subdevice): 500M -LFRX Bandwidth (Hz): 30M +LFRX Bandwidth (Hz): + For Real-Mode (A or B subdevice): 33M + For Complex (AB or BA subdevice): 66M ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Basic TX and and LFTX @@ -45,8 +49,12 @@ Though 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 subdevice): 250M + For Complex (AB or BA subdevice): 500M -LFTX Bandwidth (Hz): 30M +LFTX Bandwidth (Hz): 33M + For Real-Mode (A or B subdevice): 33M + For Complex (AB or BA subdevice): 66M ^^^^^^^^^^^^^^^^^^^^^^^^^^^ DBSRX @@ -149,7 +157,7 @@ Modification usually involves moving/removing a SMT component and burning a new daughterboard id into the eeprom. ^^^^^^^^^^^^^^^^^^^^^^^^^^^ -DBSRX +DBSRX - Mod ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Due to different clocking capabilities, @@ -179,3 +187,45 @@ With the daughterboard plugged-in, run the following commands: * <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 +^^^^^^^^^^^^^^^^^^^^^^^^^^^ +Older RFX boards require modifications to use the motherboard oscillator. +If this is the case, UHD will print a warning about the modification. +Please follow the modification procedures below: + +**Step 1: Disable the daughterboard clocks** + +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 + +**Step 3: Burn the appropriate daughterboard id into the EEPROM** + +With the daughterboard plugged-in, run the following commands: +:: + + cd <prefix>/share/uhd/utils + ./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 + + * **RFX400:** 0x0024 + * **RFX900:** 0x0025 + * **RFX1800:** 0x0034 + * **RFX1200:** 0x0026 + * **RFX2400:** 0x0027 +* <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) |