diff options
| author | eb <eb@221aa14e-8319-0410-a670-987f0aec2ac5> | 2007-01-17 22:44:13 +0000 |
|---|---|---|
| committer | eb <eb@221aa14e-8319-0410-a670-987f0aec2ac5> | 2007-01-17 22:44:13 +0000 |
| commit | 706545cb6c084d8595e9ffe53fd623b8dfc49c12 (patch) | |
| tree | 49935fc1093e7b31b3fbb84e87b289c262c9bea8 | |
| parent | 0e54e0523398c4b607a853bb502fc9073fdaf7b4 (diff) | |
| download | uhd-706545cb6c084d8595e9ffe53fd623b8dfc49c12.tar.gz uhd-706545cb6c084d8595e9ffe53fd623b8dfc49c12.tar.bz2 uhd-706545cb6c084d8595e9ffe53fd623b8dfc49c12.zip | |
Applied patch from Brett Trotter that stuffs zeros into the head of the tx signal processing pipeline when the Tx FIFO is empty.
This results in the DACs outputing zeros when there's no data, unless
the tx pipeline is disabled on the host.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@4287 221aa14e-8319-0410-a670-987f0aec2ac5
| -rwxr-xr-x | rbf/rev2/std_2rxhb_2tx.rbf | bin | 176948 -> 177079 bytes | |||
| -rwxr-xr-x | rbf/rev2/std_4rx_0tx.rbf | bin | 173865 -> 174171 bytes | |||
| -rwxr-xr-x | rbf/rev4/std_2rxhb_2tx.rbf | bin | 176948 -> 177079 bytes | |||
| -rwxr-xr-x | rbf/rev4/std_4rx_0tx.rbf | bin | 173865 -> 174171 bytes | |||
| -rw-r--r-- | sdr_lib/tx_buffer.v | 20 | ||||
| -rw-r--r-- | toplevel/usrp_std/usrp_std.qsf | 2 |
6 files changed, 11 insertions, 11 deletions
diff --git a/rbf/rev2/std_2rxhb_2tx.rbf b/rbf/rev2/std_2rxhb_2tx.rbf Binary files differindex 44fd06f77..966bae865 100755 --- a/rbf/rev2/std_2rxhb_2tx.rbf +++ b/rbf/rev2/std_2rxhb_2tx.rbf diff --git a/rbf/rev2/std_4rx_0tx.rbf b/rbf/rev2/std_4rx_0tx.rbf Binary files differindex e8a8b6ee9..a5a5cf99d 100755 --- a/rbf/rev2/std_4rx_0tx.rbf +++ b/rbf/rev2/std_4rx_0tx.rbf diff --git a/rbf/rev4/std_2rxhb_2tx.rbf b/rbf/rev4/std_2rxhb_2tx.rbf Binary files differindex 44fd06f77..966bae865 100755 --- a/rbf/rev4/std_2rxhb_2tx.rbf +++ b/rbf/rev4/std_2rxhb_2tx.rbf diff --git a/rbf/rev4/std_4rx_0tx.rbf b/rbf/rev4/std_4rx_0tx.rbf Binary files differindex e8a8b6ee9..a5a5cf99d 100755 --- a/rbf/rev4/std_4rx_0tx.rbf +++ b/rbf/rev4/std_4rx_0tx.rbf diff --git a/sdr_lib/tx_buffer.v b/sdr_lib/tx_buffer.v index ff8fd839d..63202c9df 100644 --- a/sdr_lib/tx_buffer.v +++ b/sdr_lib/tx_buffer.v @@ -66,20 +66,20 @@ module tx_buffer load_next <= #1 4'd0; end else - if((load_next != channels) & !tx_empty) + if(load_next != channels) begin load_next <= #1 load_next + 4'd1; case(load_next) - 4'd0 : tx_i_0 <= #1 fifodata; - 4'd1 : tx_q_0 <= #1 fifodata; - 4'd2 : tx_i_1 <= #1 fifodata; - 4'd3 : tx_q_1 <= #1 fifodata; - 4'd4 : tx_i_2 <= #1 fifodata; - 4'd5 : tx_q_2 <= #1 fifodata; - 4'd6 : tx_i_3 <= #1 fifodata; - 4'd7 : tx_q_3 <= #1 fifodata; + 4'd0 : tx_i_0 <= #1 tx_empty ? 16'd0 : fifodata; + 4'd1 : tx_q_0 <= #1 tx_empty ? 16'd0 : fifodata; + 4'd2 : tx_i_1 <= #1 tx_empty ? 16'd0 : fifodata; + 4'd3 : tx_q_1 <= #1 tx_empty ? 16'd0 : fifodata; + 4'd4 : tx_i_2 <= #1 tx_empty ? 16'd0 : fifodata; + 4'd5 : tx_q_2 <= #1 tx_empty ? 16'd0 : fifodata; + 4'd6 : tx_i_3 <= #1 tx_empty ? 16'd0 : fifodata; + 4'd7 : tx_q_3 <= #1 tx_empty ? 16'd0 : fifodata; endcase // case(load_next) - end // if ((load_next != channels) & !tx_empty) + end // if (load_next != channels) else if(txstrobe & (load_next == channels)) begin load_next <= #1 4'd0; diff --git a/toplevel/usrp_std/usrp_std.qsf b/toplevel/usrp_std/usrp_std.qsf index 1503c8cc6..8297f0f7b 100644 --- a/toplevel/usrp_std/usrp_std.qsf +++ b/toplevel/usrp_std/usrp_std.qsf @@ -27,7 +27,7 @@ # ======================== set_global_assignment -name ORIGINAL_QUARTUS_VERSION 3.0 set_global_assignment -name PROJECT_CREATION_TIME_DATE "00:14:04 JULY 13, 2003" -set_global_assignment -name LAST_QUARTUS_VERSION "6.0 SP1" +set_global_assignment -name LAST_QUARTUS_VERSION 6.1 # Pin & Location Assignments # ========================== |