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-rw-r--r--host/lib/usrp/usrp2/io_impl.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/host/lib/usrp/usrp2/io_impl.cpp b/host/lib/usrp/usrp2/io_impl.cpp
index 9ee6abed0..81be97fa5 100644
--- a/host/lib/usrp/usrp2/io_impl.cpp
+++ b/host/lib/usrp/usrp2/io_impl.cpp
@@ -239,7 +239,8 @@ void usrp2_impl::io_init(void){
//init the tx xport and flow control monitor
_io_impl->tx_xports.push_back(_mbc[mb].tx_dsp_xport);
_io_impl->fc_mons.push_back(flow_control_monitor::sptr(new flow_control_monitor(
- USRP2_SRAM_BYTES/_mbc[mb].tx_dsp_xport->get_send_frame_size()
+ device_addr.cast("send_buff_size", USRP2_SRAM_BYTES) /
+ _mbc[mb].tx_dsp_xport->get_send_frame_size()
)));
}