reset the phase when we shut down. Aids in sync

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10115 221aa14e-8319-0410-a670-987f0aec2ac5

2 files changed, 7 insertions, 3 deletions

diff --git a/usrp2/fpga/sdr_lib/dsp_core_rx.v b/usrp2/fpga/sdr_lib/dsp_core_rx.v
index 0e4af37fb..64c82bbda 100644
--- a/usrp2/fpga/sdr_lib/dsp_core_rx.v
+++ b/usrp2/fpga/sdr_lib/dsp_core_rx.v
@@ -84,7 +84,9 @@ module dsp_core_rx
    always @(posedge clk)
      if(rst)
        phase <= 0;
-     else if(run)
+     else if(~run)
+       phase <= 0;
+     else
        phase <= phase + phase_inc;
 
    MULT18X18S mult_i
diff --git a/usrp2/fpga/sdr_lib/dsp_core_tx.v b/usrp2/fpga/sdr_lib/dsp_core_tx.v
index 535f2003e..54889fa2a 100644
--- a/usrp2/fpga/sdr_lib/dsp_core_tx.v
+++ b/usrp2/fpga/sdr_lib/dsp_core_tx.v
@@ -58,11 +58,13 @@ module dsp_core_tx
    always @(posedge clk) strobe_hb2 <= strobe_hb2_pre;
    always @(posedge clk) strobe_cic <= strobe_cic_pre;
 
-   // DDC
+   // NCO
    always @(posedge clk)
      if(rst)
        phase <= 0;
-     else if(run)
+     else if(~run)
+       phase <= 0;
+     else
        phase <= phase + phase_inc;
    
    wire        signed [17:0] da, db;