diff options
| author | Josh Blum <josh@joshknows.com> | 2012-05-21 12:12:16 -0700 |
|---|---|---|
| committer | Josh Blum <josh@joshknows.com> | 2012-05-21 12:15:05 -0700 |
| commit | 74244730097fa39267a2b1a0615a8c3ca0734614 (patch) | |
| tree | 197c696021aa983c69872e2dbb993f4fa8055538 /host/docs/usrp_b1xx.rst | |
| parent | 19874c04d49a732189aafa45e2a9638dce810da2 (diff) | |
| download | uhd-74244730097fa39267a2b1a0615a8c3ca0734614.tar.gz uhd-74244730097fa39267a2b1a0615a8c3ca0734614.tar.bz2 uhd-74244730097fa39267a2b1a0615a8c3ca0734614.zip | |
b100: fix for 61.44 MHz clock mod docs
Diffstat (limited to 'host/docs/usrp_b1xx.rst')
| -rw-r--r-- | host/docs/usrp_b1xx.rst | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/host/docs/usrp_b1xx.rst b/host/docs/usrp_b1xx.rst index 564fb89be..538d60fce 100644 --- a/host/docs/usrp_b1xx.rst +++ b/host/docs/usrp_b1xx.rst @@ -34,20 +34,20 @@ A few notable rates are: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Set 61.44MHz - uses external VCXO ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -To use the 61.44MHz clock rate, the USRP embedded will require two jumpers to be moved. +To use the 61.44MHz clock rate, the USRP embedded will require one jumper to be moved, +and X4 must be populated with a 61.44 MHz oscillator. -* J16 is a two pin header, remove the jumper (or leave it on pin1 only) -* J15 is a three pin header, move the jumper to (pin1, pin2) +* **J15** is a three pin header, move the jumper to (pin1, pin2) +* **357LB3I061M4400** is the recommended oscillator for X4 **Note:** See instructions below to communicate the desired clock rate into the UHD. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Set other rates - uses internal VCO ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -To use other clock rates, the jumpers will need to be in the default position. +To use other clock rates, the jumper will need to be in the default position. -* J16 is a two pin header, move the jumper to (pin1, pin2) -* J15 is a three pin header, move the jumper to (pin2, pin3) +* **J15** is a three pin header, move the jumper to (pin2, pin3) To communicate the desired clock rate into the UHD, specify the a special device address argument, |