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-rw-r--r--usrp2/top/E1x0/u1e.v31
-rw-r--r--usrp2/top/E1x0/u1e_core.v8
2 files changed, 22 insertions, 17 deletions
diff --git a/usrp2/top/E1x0/u1e.v b/usrp2/top/E1x0/u1e.v
index adf42fd07..1ec214e76 100644
--- a/usrp2/top/E1x0/u1e.v
+++ b/usrp2/top/E1x0/u1e.v
@@ -36,11 +36,12 @@ module u1e
output cgen_sclk, output cgen_sen_b, output cgen_mosi, input cgen_miso, // Clock gen SPI
input cgen_st_status, input cgen_st_ld, input cgen_st_refmon, output cgen_sync_b, output cgen_ref_sel,
+ input overo_gpio65, input overo_gpio128, input overo_gpio145, output overo_gpio147, //aux SPI
- output overo_gpio144, output overo_gpio145, output overo_gpio146, output overo_gpio147, // Fifo controls
+ output overo_gpio144, output overo_gpio146, // Fifo controls
input overo_gpio0, input overo_gpio14, input overo_gpio21, input overo_gpio22, // Misc GPIO
- input overo_gpio23, input overo_gpio64, input overo_gpio65, input overo_gpio127, // Misc GPIO
- input overo_gpio128, input overo_gpio163, input overo_gpio170, input overo_gpio176, // Misc GPIO
+ input overo_gpio23, input overo_gpio64, input overo_gpio127, // Misc GPIO
+ input overo_gpio176, input overo_gpio163, input overo_gpio170, // Misc GPIO
inout [15:0] io_tx, inout [15:0] io_rx,
@@ -78,16 +79,25 @@ module u1e
.CLK2X(), .CLK2X180(),
.CLK0(clk_fb), .CLK90(clk_fpga), .CLK180(), .CLK270(),
.LOCKED(dcm_locked), .STATUS());
-
+
// /////////////////////////////////////////////////////////////////////////
// SPI
wire mosi, sclk, miso;
assign { db_sclk_tx, db_mosi_tx } = ~db_sen_tx ? {sclk,mosi} : 2'b0;
assign { db_sclk_rx, db_mosi_rx } = ~db_sen_rx ? {sclk,mosi} : 2'b0;
assign { sclk_codec, mosi_codec } = ~sen_codec ? {sclk,mosi} : 2'b0;
- assign { cgen_sclk, cgen_mosi } = ~cgen_sen_b ? {sclk,mosi} : 2'b0;
+ //assign { cgen_sclk, cgen_mosi } = ~cgen_sen_b ? {sclk,mosi} : 2'b0; //replaced by aux spi
assign miso = (~db_sen_tx & db_miso_tx) | (~db_sen_rx & db_miso_rx) |
- (~sen_codec & miso_codec) | (~cgen_sen_b & cgen_miso);
+ (~sen_codec & miso_codec) | (~cgen_sen_b & cgen_miso);
+
+ //assign the aux spi to the cgen (bypasses wishbone)
+ assign cgen_sclk = overo_gpio65;
+ assign cgen_sen_b = overo_gpio128;
+ assign cgen_mosi = overo_gpio145;
+ assign overo_gpio147 = cgen_miso;
+
+ wire _cgen_sen_b;
+ //assign cgen_sen_b = _cgen_sen_b; //replaced by aux spi
// /////////////////////////////////////////////////////////////////////////
// TX DAC -- handle the interleaved data bus to DAC, with clock doubling DLL
@@ -137,17 +147,14 @@ module u1e
.EM_WAIT0(EM_WAIT0), .EM_NCS4(EM_NCS4), .EM_NCS5(EM_NCS5),
.EM_NCS6(EM_NCS6), .EM_NWE(EM_NWE), .EM_NOE(EM_NOE),
.db_sda(db_sda), .db_scl(db_scl),
- .sclk(sclk), .sen({cgen_sen_b,sen_codec,db_sen_tx,db_sen_rx}), .mosi(mosi), .miso(miso),
+ .sclk(sclk), .sen({_cgen_sen_b,sen_codec,db_sen_tx,db_sen_rx}), .mosi(mosi), .miso(miso),
.cgen_st_status(cgen_st_status), .cgen_st_ld(cgen_st_ld),.cgen_st_refmon(cgen_st_refmon),
.cgen_sync_b(cgen_sync_b), .cgen_ref_sel(cgen_ref_sel),
- .tx_have_space(overo_gpio144), .tx_underrun(overo_gpio145),
- .rx_have_data(overo_gpio146), .rx_overrun(overo_gpio147),
+ .tx_have_space(overo_gpio144),
+ .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),
- .misc_gpio( {{overo_gpio128,overo_gpio163,overo_gpio170,overo_gpio176},
- {overo_gpio0,overo_gpio14,overo_gpio21,overo_gpio22},
- {overo_gpio23,overo_gpio64,overo_gpio65,overo_gpio127}}),
.pps_in(PPS_IN) );
// /////////////////////////////////////////////////////////////////////////
diff --git a/usrp2/top/E1x0/u1e_core.v b/usrp2/top/E1x0/u1e_core.v
index 4c513587b..02dfd6177 100644
--- a/usrp2/top/E1x0/u1e_core.v
+++ b/usrp2/top/E1x0/u1e_core.v
@@ -31,12 +31,12 @@ module u1e_core
output sclk, output [15:0] sen, output mosi, input miso,
input cgen_st_status, input cgen_st_ld, input cgen_st_refmon, output cgen_sync_b, output cgen_ref_sel,
- output tx_have_space, output tx_underrun, output rx_have_data, output rx_overrun,
+ output tx_have_space, output rx_have_data,
inout [15:0] io_tx, inout [15:0] io_rx,
output [13:0] tx_i, output [13:0] tx_q,
input [11:0] rx_i, input [11:0] rx_q,
- input [11:0] misc_gpio, input pps_in
+ input pps_in
);
localparam TXFIFOSIZE = 13;
@@ -70,9 +70,7 @@ module u1e_core
wire [31:0] debug_vt;
wire rx_overrun_dsp, rx_overrun_gpmc, tx_underrun_dsp, tx_underrun_gpmc;
- assign rx_overrun = rx_overrun_gpmc | rx_overrun_dsp;
- assign tx_underrun = tx_underrun_gpmc | tx_underrun_dsp;
-
+
setting_reg #(.my_addr(SR_GLOBAL_RESET), .width(1)) sr_reset
(.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr),
.in(set_data),.out(),.changed(global_reset));