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-rw-r--r--fpga/usrp2/top/B100/B100.v8
-rw-r--r--fpga/usrp2/top/B100/u1plus_core.v2
-rw-r--r--fpga/usrp2/top/E1x0/u1e.v15
-rw-r--r--fpga/usrp2/top/E1x0/u1e_core.v2
4 files changed, 19 insertions, 8 deletions
diff --git a/fpga/usrp2/top/B100/B100.v b/fpga/usrp2/top/B100/B100.v
index dcda974b4..e333e82aa 100644
--- a/fpga/usrp2/top/B100/B100.v
+++ b/fpga/usrp2/top/B100/B100.v
@@ -143,13 +143,13 @@ module B100
always @(posedge clk_fpga)
if(rxsync_0)
begin
- rx_i <= rx_b;
- rx_q <= rx_a;
+ rx_i <= ~rx_b;
+ rx_q <= ~rx_a;
end
else
begin
- rx_i <= rx_a;
- rx_q <= rx_b;
+ rx_i <= ~rx_a;
+ rx_q <= ~rx_b;
end
// /////////////////////////////////////////////////////////////////////////
diff --git a/fpga/usrp2/top/B100/u1plus_core.v b/fpga/usrp2/top/B100/u1plus_core.v
index c1d6767d1..74151ce98 100644
--- a/fpga/usrp2/top/B100/u1plus_core.v
+++ b/fpga/usrp2/top/B100/u1plus_core.v
@@ -413,7 +413,7 @@ module u1plus_core
// Readback mux 32 -- Slave #7
//compatibility number -> increment when the fpga has been sufficiently altered
- localparam compat_num = {16'd9, 16'd3}; //major, minor
+ localparam compat_num = {16'd9, 16'd4}; //major, minor
wire [31:0] reg_test32;
diff --git a/fpga/usrp2/top/E1x0/u1e.v b/fpga/usrp2/top/E1x0/u1e.v
index 903ef7a6f..cdf2a7f0d 100644
--- a/fpga/usrp2/top/E1x0/u1e.v
+++ b/fpga/usrp2/top/E1x0/u1e.v
@@ -121,7 +121,18 @@ module u1e
.D1(1'b1), // 1-bit data input (associated with C1)
.R(1'b0), // 1-bit reset input
.S(1'b0)); // 1-bit set input
-
+
+ // /////////////////////////////////////////////////////////////////////////
+ // RX ADC -- handles inversion
+
+ reg [11:0] rx_i, rx_q;
+ always @(posedge clk_fpga) begin
+ rx_i <= ~DA;
+ rx_q <= ~DB;
+ end
+
+ // /////////////////////////////////////////////////////////////////////////
+
// /////////////////////////////////////////////////////////////////////////
// Main U1E Core
u1e_core u1e_core(.clk_fpga(clk_fpga), .rst_fpga(~debug_pb),
@@ -138,7 +149,7 @@ module u1e
.rx_have_data(overo_gpio146),
.io_tx(io_tx), .io_rx(io_rx),
.tx_i(tx_i), .tx_q(tx_q),
- .rx_i(DA), .rx_q(DB),
+ .rx_i(rx_i), .rx_q(rx_q),
.pps_in(PPS_IN), .proc_int(proc_int) );
// /////////////////////////////////////////////////////////////////////////
diff --git a/fpga/usrp2/top/E1x0/u1e_core.v b/fpga/usrp2/top/E1x0/u1e_core.v
index bd19d6076..408aeb240 100644
--- a/fpga/usrp2/top/E1x0/u1e_core.v
+++ b/fpga/usrp2/top/E1x0/u1e_core.v
@@ -454,7 +454,7 @@ module u1e_core
// Readback mux 32 -- Slave #7
//compatibility number -> increment when the fpga has been sufficiently altered
- localparam compat_num = {16'd9, 16'd3}; //major, minor
+ localparam compat_num = {16'd9, 16'd4}; //major, minor
wire [31:0] reg_test32;