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-rw-r--r--host/lib/usrp/usrp2/mboard_impl.cpp1
-rw-r--r--host/lib/usrp/usrp2/usrp2_regs.hpp5
2 files changed, 6 insertions, 0 deletions
diff --git a/host/lib/usrp/usrp2/mboard_impl.cpp b/host/lib/usrp/usrp2/mboard_impl.cpp
index b3b03c11c..0ac988361 100644
--- a/host/lib/usrp/usrp2/mboard_impl.cpp
+++ b/host/lib/usrp/usrp2/mboard_impl.cpp
@@ -85,6 +85,7 @@ usrp2_mboard_impl::usrp2_mboard_impl(
_iface->poke32(U2_REG_TX_CTRL_NUM_CHAN, 0); //1 channel
_iface->poke32(U2_REG_TX_CTRL_CLEAR_STATE, 1); //reset
_iface->poke32(U2_REG_TX_CTRL_REPORT_SID, 1); //sid 1 (different from rx)
+ _iface->poke32(U2_REG_TX_CTRL_POLICY, U2_FLAG_TX_CTRL_POLICY_NEXT_PACKET);
//init the ddc
init_ddc_config();
diff --git a/host/lib/usrp/usrp2/usrp2_regs.hpp b/host/lib/usrp/usrp2/usrp2_regs.hpp
index aa8bd860f..cc9094ae7 100644
--- a/host/lib/usrp/usrp2/usrp2_regs.hpp
+++ b/host/lib/usrp/usrp2/usrp2_regs.hpp
@@ -247,5 +247,10 @@
#define U2_REG_TX_CTRL_NUM_CHAN _SR_ADDR(SR_TX_CTRL + 0)
#define U2_REG_TX_CTRL_CLEAR_STATE _SR_ADDR(SR_TX_CTRL + 1)
#define U2_REG_TX_CTRL_REPORT_SID _SR_ADDR(SR_TX_CTRL + 2)
+#define U2_REG_TX_CTRL_POLICY _SR_ADDR(SR_TX_CTRL + 3)
+
+#define U2_FLAG_TX_CTRL_POLICY_WAIT (0x1 << 0)
+#define U2_FLAG_TX_CTRL_POLICY_NEXT_PACKET (0x1 << 1)
+#define U2_FLAG_TX_CTRL_POLICY_NEXT_BURST (0x1 << 2)
#endif /* INCLUDED_USRP2_REGS_HPP */