detect loss of signal

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10284 221aa14e-8319-0410-a670-987f0aec2ac5

diff --git a/usrp2/fpga/serdes/serdes_rx.v b/usrp2/fpga/serdes/serdes_rx.v
index 0541f8d452daf9c5d0fdc43c7d90fa5ca6e9a95c..8c488d7d78761f776665870cf1d516861aca5d33 100644 (file)
--- a/usrp2/fpga/serdes/serdes_rx.v
+++ b/usrp2/fpga/serdes/serdes_rx.v
@@ -337,7 +337,8 @@ module serdes_rx
 
    assign      wr_dat_o = line_o;
 
-   wire        slu = ~({2'b11,K_ERROR,K_ERROR}=={ser_rkmsb,ser_rklsb,ser_r});
+   wire        slu = ~(({2'b11,K_ERROR,K_ERROR}=={ser_rkmsb,ser_rklsb,ser_r}) ||
+                      ({2'b11,K_LOS,K_LOS}=={ser_rkmsb,ser_rklsb,ser_r}));
    reg [3:0]   slu_reg;
    
    always @(posedge clk)