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removed misc stuff

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Rejeesh Kutty 2014-03-12 11:02:53 -04:00
parent a6c3cb29c6
commit cda3cb3280
3 changed files with 0 additions and 361 deletions
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111
library/misc/daq1_spi.v
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// ***************************************************************************
// ***************************************************************************
// Copyright 2011(c) Analog Devices, Inc.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
// - Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// - Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in
// the documentation and/or other materials provided with the
// distribution.
// - Neither the name of Analog Devices, Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
// - The use of this software may or may not infringe the patent rights
// of one or more patent holders. This license does not release you
// from the requirement that you obtain separate licenses from these
// patent holders to use this software.
// - Use of the software either in source or binary form, must be run
// on or directly connected to an Analog Devices Inc. component.
//
// THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE ARE DISCLAIMED.
//
// IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, INTELLECTUAL PROPERTY
// RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// ***************************************************************************
// ***************************************************************************
`timescale 1ns/100ps
module daq1_spi (
spi_csn,
spi_clk,
spi_mosi,
spi_miso,
spi_sdio);
// 4 wire
input [ 2:0] spi_csn;
input spi_clk;
input spi_mosi;
output spi_miso;
// 3 wire
inout spi_sdio;
// internal registers
reg [ 5:0] spi_count = 'd0;
reg spi_rd_wr_n = 'd0;
reg spi_enable = 'd0;
// internal signals
wire spi_csn_s;
wire spi_enable_s;
// check on rising edge and change on falling edge
assign spi_csn_s = & spi_csn;
assign spi_enable_s = spi_enable & ~spi_csn_s;
always @(posedge spi_clk) begin
if (spi_csn_s == 1'b1) begin
spi_count <= 6'd0;
spi_rd_wr_n <= 1'd0;
end else begin
spi_count <= spi_count + 1'b1;
if (spi_count == 6'd0) begin
spi_rd_wr_n <= spi_mosi;
end
end
end
always @(negedge spi_clk) begin
if (spi_csn_s == 1'b1) begin
spi_enable <= 1'b0;
end else begin
if (((spi_count == 6'd16) && (spi_csn[2] == 1'b0)) ||
((spi_count == 6'd8) && (spi_csn[1] == 1'b0)) ||
((spi_count == 6'd16) && (spi_csn[0] == 1'b0))) begin
spi_enable <= spi_rd_wr_n;
end
end
end
// io butter
IOBUF i_iobuf_sdio (
.T (spi_enable_s),
.I (spi_mosi),
.O (spi_miso),
.IO (spi_sdio));
endmodule
// ***************************************************************************
// ***************************************************************************

109
library/misc/daq2_spi.v
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@ -1,109 +0,0 @@
// ***************************************************************************
// ***************************************************************************
// Copyright 2011(c) Analog Devices, Inc.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
// - Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// - Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in
// the documentation and/or other materials provided with the
// distribution.
// - Neither the name of Analog Devices, Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
// - The use of this software may or may not infringe the patent rights
// of one or more patent holders. This license does not release you
// from the requirement that you obtain separate licenses from these
// patent holders to use this software.
// - Use of the software either in source or binary form, must be run
// on or directly connected to an Analog Devices Inc. component.
//
// THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE ARE DISCLAIMED.
//
// IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, INTELLECTUAL PROPERTY
// RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// ***************************************************************************
// ***************************************************************************
`timescale 1ns/100ps
module daq2_spi (
spi_csn,
spi_clk,
spi_mosi,
spi_miso,
spi_sdio);
// 4 wire
input [ 2:0] spi_csn;
input spi_clk;
input spi_mosi;
output spi_miso;
// 3 wire
inout spi_sdio;
// internal registers
reg [ 5:0] spi_count = 'd0;
reg spi_rd_wr_n = 'd0;
reg spi_enable = 'd0;
// internal signals
wire spi_csn_s;
wire spi_enable_s;
// check on rising edge and change on falling edge
assign spi_csn_s = & spi_csn;
assign spi_enable_s = spi_enable & ~spi_csn_s;
always @(posedge spi_clk or posedge spi_csn_s) begin
if (spi_csn_s == 1'b1) begin
spi_count <= 6'd0;
spi_rd_wr_n <= 1'd0;
end else begin
spi_count <= spi_count + 1'b1;
if (spi_count == 6'd0) begin
spi_rd_wr_n <= spi_mosi;
end
end
end
always @(negedge spi_clk or posedge spi_csn_s) begin
if (spi_csn_s == 1'b1) begin
spi_enable <= 1'b0;
end else begin
if (spi_count == 6'd16) begin
spi_enable <= spi_rd_wr_n;
end
end
end
// io butter
IOBUF i_iobuf_sdio (
.T (spi_enable_s),
.I (spi_mosi),
.O (spi_miso),
.IO (spi_sdio));
endmodule
// ***************************************************************************
// ***************************************************************************

141
library/misc/usdrx1_spi.v
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// ***************************************************************************
// ***************************************************************************
// Copyright 2011(c) Analog Devices, Inc.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
// - Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// - Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in
// the documentation and/or other materials provided with the
// distribution.
// - Neither the name of Analog Devices, Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
// - The use of this software may or may not infringe the patent rights
// of one or more patent holders. This license does not release you
// from the requirement that you obtain separate licenses from these
// patent holders to use this software.
// - Use of the software either in source or binary form, must be run
// on or directly connected to an Analog Devices Inc. component.
//
// THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE ARE DISCLAIMED.
//
// IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, INTELLECTUAL PROPERTY
// RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// ***************************************************************************
// ***************************************************************************
`timescale 1ns/100ps
module usdrx1_spi (
spi_fout_csn,
spi_afe_csn,
spi_clk_csn,
spi_clk,
spi_mosi,
spi_miso,
spi_fout_sdio,
spi_afe_sdio,
spi_clk_sdio);
// 4 wire
input [ 5:0] spi_fout_csn;
input [ 3:0] spi_afe_csn;
input spi_clk_csn;
input spi_clk;
input spi_mosi;
output spi_miso;
// 3 wire
inout spi_fout_sdio;
inout spi_afe_sdio;
input spi_clk_sdio;
// internal registers
reg [ 5:0] spi_count = 'd0;
reg spi_rd_wr_n = 'd0;
reg spi_enable = 'd0;
// internal signals
wire [ 2:0] spi_csn_3_s;
wire spi_csn_s;
wire spi_enable_s;
wire spi_fout_miso_s;
wire spi_afe_miso_s;
wire spi_clk_miso_s;
// check on rising edge and change on falling edge
assign spi_csn_3_s[2] = & spi_fout_csn;
assign spi_csn_3_s[1] = & spi_afe_csn;
assign spi_csn_3_s[0] = spi_clk_csn;
assign spi_csn_s = & spi_csn_3_s;
assign spi_enable_s = spi_enable & ~spi_csn_s;
always @(posedge spi_clk) begin
if (spi_csn_s == 1'b1) begin
spi_count <= 6'd0;
spi_rd_wr_n <= 1'd0;
end else begin
spi_count <= spi_count + 1'b1;
if (spi_count == 6'd0) begin
spi_rd_wr_n <= spi_mosi;
end
end
end
always @(negedge spi_clk) begin
if (spi_csn_s == 1'b1) begin
spi_enable <= 1'b0;
end else begin
if (((spi_count == 6'd16) && (spi_csn_3_s[1] == 1'b0)) ||
((spi_count == 6'd16) && (spi_csn_3_s[0] == 1'b0))) begin
spi_enable <= spi_rd_wr_n;
end
end
end
assign spi_miso = ((spi_fout_miso_s & ~spi_csn_3_s[2]) |
(spi_afe_miso_s & ~spi_csn_3_s[1]) |
(spi_clk_miso_s & ~spi_csn_3_s[0]));
// io buffers
IOBUF i_iobuf_fout_sdio (
.T (spi_enable_s),
.I (spi_mosi),
.O (spi_fout_miso_s),
.IO (spi_fout_sdio));
IOBUF i_iobuf_afe_sdio (
.T (spi_enable_s),
.I (spi_mosi),
.O (spi_afe_miso_s),
.IO (spi_afe_sdio));
IOBUF i_iobuf_clk_sdio (
.T (spi_enable_s),
.I (spi_mosi),
.O (spi_clk_miso_s),
.IO (spi_clk_sdio));
endmodule
// ***************************************************************************
// ***************************************************************************