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Line 35... |
// License: GPL, v3, as defined and found on www.gnu.org,
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// License: GPL, v3, as defined and found on www.gnu.org,
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// http://www.gnu.org/licenses/gpl.html
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// http://www.gnu.org/licenses/gpl.html
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//
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//
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//
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//
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///////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////
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//
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//
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`default_nettype none
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//
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`define QSPI_IDLE 3'h0
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`define QSPI_IDLE 3'h0
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`define QSPI_START 3'h1
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`define QSPI_START 3'h1
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`define QSPI_BITS 3'h2
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`define QSPI_BITS 3'h2
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`define QSPI_READY 3'h3
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`define QSPI_READY 3'h3
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`define QSPI_HOLDING 3'h4
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`define QSPI_HOLDING 3'h4
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Line 58... |
// Module interface
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// Module interface
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i_wr, i_hold, i_word, i_len, i_spd, i_dir,
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i_wr, i_hold, i_word, i_len, i_spd, i_dir,
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o_word, o_valid, o_busy,
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o_word, o_valid, o_busy,
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// QSPI interface
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// QSPI interface
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o_sck, o_cs_n, o_mod, o_dat, i_dat);
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o_sck, o_cs_n, o_mod, o_dat, i_dat);
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input i_clk;
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input wire i_clk;
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// Chip interface
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// Chip interface
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// Can send info
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// Can send info
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// i_dir = 1, i_spd = 0, i_hold = 0, i_wr = 1,
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// i_dir = 1, i_spd = 0, i_hold = 0, i_wr = 1,
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// i_word = { 1'b0, 32'info to send },
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// i_word = { 1'b0, 32'info to send },
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// i_len = # of bytes in word-1
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// i_len = # of bytes in word-1
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input i_wr, i_hold;
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input wire i_wr, i_hold;
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input [31:0] i_word;
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input wire [31:0] i_word;
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input [1:0] i_len; // 0=>8bits, 1=>16 bits, 2=>24 bits, 3=>32 bits
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input wire [1:0] i_len; // 0=>8bits, 1=>16 bits, 2=>24 bits, 3=>32 bits
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input i_spd; // 0 -> normal QPI, 1 -> QSPI
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input wire i_spd; // 0 -> normal QPI, 1 -> QSPI
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input i_dir; // 0 -> read, 1 -> write to SPI
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input wire i_dir; // 0 -> read, 1 -> write to SPI
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output reg [31:0] o_word;
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output reg [31:0] o_word;
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output reg o_valid, o_busy;
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output reg o_valid, o_busy;
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// Interface with the QSPI lines
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// Interface with the QSPI lines
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output reg o_sck;
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output reg o_sck;
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output reg o_cs_n;
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output reg o_cs_n;
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