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[Commit-gnuradio] r7322 - usrp2/trunk/fpga/timing
From: |
matt |
Subject: |
[Commit-gnuradio] r7322 - usrp2/trunk/fpga/timing |
Date: |
Tue, 1 Jan 2008 18:39:29 -0700 (MST) |
Author: matt
Date: 2008-01-01 18:39:28 -0700 (Tue, 01 Jan 2008)
New Revision: 7322
Modified:
usrp2/trunk/fpga/timing/time_sync.v
Log:
programmable offset to account for time to send and receive.
Modified: usrp2/trunk/fpga/timing/time_sync.v
===================================================================
--- usrp2/trunk/fpga/timing/time_sync.v 2008-01-02 01:03:51 UTC (rev 7321)
+++ usrp2/trunk/fpga/timing/time_sync.v 2008-01-02 01:39:28 UTC (rev 7322)
@@ -10,6 +10,8 @@
wire [31:0] master_time_rcvd;
reg [31:0] master_time;
+ reg [31:0] delta_time;
+
wire sync_rcvd, internal_tick, pps_ext;
reg [31:0] tick_time, tick_time_wb;
wire tick_free_run;
@@ -21,7 +23,7 @@
if(rst_i)
master_time <= 0;
else if(external_sync & sync_rcvd)
- master_time <= master_time_rcvd;
+ master_time <= master_time_rcvd + delta_time;
else
master_time <= master_time + 1;
assign master_time_o = master_time;
@@ -47,9 +49,12 @@
tick_int_enable <= 0;
external_sync <= 0;
tick_interval <= 100000-1; // default to 1K times per second
+ delta_time <= 0;
end
else if(stb_i & we_i)
- if(adr_i[2])
+ if(adr_i[2:0] == 2)
+ delta_time <= dat_i;
+ else if(adr_i[2:0] == 1)
tick_interval <= dat_i;
else
begin
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