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Diffstat (limited to 'host/docs/usrp2.rst')
| -rw-r--r-- | host/docs/usrp2.rst | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/host/docs/usrp2.rst b/host/docs/usrp2.rst index 745361b77..70e5ea28b 100644 --- a/host/docs/usrp2.rst +++ b/host/docs/usrp2.rst @@ -174,7 +174,7 @@ buffer incoming samples faster than they can be processed. However, if you application cannot process samples fast enough, no amount of buffering can save you. -By default, the UHD will try to request a reasonably large buffer size for both send and receive. +By default, the UHD will try to resize both the send and receive buffer for optimum performance. A warning will be printed on instantiation if the actual buffer size is insufficient. See the OS specific notes below: @@ -201,7 +201,7 @@ Each parameter will accept a numeric value for the number of bytes. * recv_buff_size * send_buff_size -Example, set the args string to the following: +Example usage, set the device address markup string to the following: :: addr=192.168.10.2, recv_buff_size=100e6 @@ -211,6 +211,20 @@ Hardware setup notes ------------------------------------------------------------------------ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +Front panel LEDs +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +The LEDs on the front panel can be useful in debugging hardware and software issues. +The LEDs reveal the following about the state of the device: + +* **LED A:** transmitting +* **LED B:** undocumented +* **LED C:** receiving +* **LED D:** firmware loaded +* **LED E:** undocumented +* **LED F:** FPGA loaded + + +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Ref Clock - 10MHz ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Using an external 10MHz reference clock requires a signal level between |