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| author | Josh Blum <josh@joshknows.com> | 2011-03-08 18:31:49 -0800 |
|---|---|---|
| committer | Josh Blum <josh@joshknows.com> | 2011-03-08 18:31:49 -0800 |
| commit | 74bc82979ac05c12482627693c29080079eb4a67 (patch) | |
| tree | f5203dca416659542833287ba77d1b2ccb02b4eb | |
| parent | 982aeee231396688fade022778cfb743cf185e89 (diff) | |
| download | uhd-74bc82979ac05c12482627693c29080079eb4a67.tar.gz uhd-74bc82979ac05c12482627693c29080079eb4a67.tar.bz2 uhd-74bc82979ac05c12482627693c29080079eb4a67.zip | |
usrp2: comments for buffer size setting
| -rw-r--r-- | host/lib/usrp/usrp2/usrp2_impl.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/host/lib/usrp/usrp2/usrp2_impl.cpp b/host/lib/usrp/usrp2/usrp2_impl.cpp index f7154b0fc..14b26410d 100644 --- a/host/lib/usrp/usrp2/usrp2_impl.cpp +++ b/host/lib/usrp/usrp2/usrp2_impl.cpp @@ -164,7 +164,10 @@ static mtu_result_t determine_mtu(const std::string &addr){ ); mtu_result_t mtu; - boost::uint8_t buffer[2000]; //FIXME use real FPGA buffer maximum + //The FPGA offers 4K buffers, and the user may manually request this. + //However, multiple simultaneous receives (2DSP slave + 2DSP master), + //require that buffering to be used internally, and this is a safe setting. + boost::uint8_t buffer[2000]; usrp2_ctrl_data_t *ctrl_data = reinterpret_cast<usrp2_ctrl_data_t *>(buffer); static const double echo_timeout = 0.010; //10 ms |