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Line 1... |
-------------------------------------------------------------------------------
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-------------------------------------------------------------------------------
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--
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--
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-- SD/MMC Bootloader
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-- SD/MMC Bootloader
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--
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--
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-- $Id: spi_boot.vhd,v 1.9 2007-02-25 18:24:12 arniml Exp $
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-- $Id: spi_boot.vhd,v 1.10 2007-08-06 23:31:05 arniml Exp $
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--
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--
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-- Copyright (c) 2005, Arnim Laeuger (arniml@opencores.org)
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-- Copyright (c) 2005, Arnim Laeuger (arniml@opencores.org)
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--
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--
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-- All rights reserved, see COPYING.
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-- All rights reserved, see COPYING.
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--
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--
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| Line 48... |
Line 48... |
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entity spi_boot is
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entity spi_boot is
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generic (
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generic (
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-- width of set selection
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width_set_sel_g : integer := 4;
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-- width of bit counter: minimum 6, maximum 12
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-- width of bit counter: minimum 6, maximum 12
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width_bit_cnt_g : integer := 6;
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width_bit_cnt_g : integer := 6;
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-- width of image counter: minimum 0, maximum n
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-- width of image counter: minimum 0, maximum n
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width_img_cnt_g : integer := 2;
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width_img_cnt_g : integer := 2;
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-- number of bits required to address one image
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-- number of bits required to address one image
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| Line 69... |
Line 67... |
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port (
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port (
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-- System Interface -------------------------------------------------------
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-- System Interface -------------------------------------------------------
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clk_i : in std_logic;
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clk_i : in std_logic;
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reset_i : in std_logic;
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reset_i : in std_logic;
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set_sel_i : in std_logic_vector(width_set_sel_g-1 downto 0);
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set_sel_i : in std_logic_vector(31-width_img_cnt_g-num_bits_per_img_g
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downto 0);
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-- Card Interface ---------------------------------------------------------
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-- Card Interface ---------------------------------------------------------
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spi_clk_o : out std_logic;
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spi_clk_o : out std_logic;
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spi_cs_n_o : out std_logic;
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spi_cs_n_o : out std_logic;
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spi_data_in_i : in std_logic;
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spi_data_in_i : in std_logic;
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spi_data_out_o : out std_logic;
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spi_data_out_o : out std_logic;
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else
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else
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ctrl_fsm_s <= CMD18_DATA;
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ctrl_fsm_s <= CMD18_DATA;
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end if;
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end if;
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-- Issued CMD12: STOP_TRANSMISSION --------------------------------------
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-- Issued CMD12: STOP_TRANSMISSION -------------------------------------
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when CMD12 =>
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when CMD12 =>
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if cmd_finished_s then
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if cmd_finished_s then
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ctrl_fsm_s <= INC_IMG_CNT;
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ctrl_fsm_s <= INC_IMG_CNT;
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else
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else
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ctrl_fsm_s <= CMD12;
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ctrl_fsm_s <= CMD12;
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Line 846... |
cmd_v(cmd_r) := cmd18_c;
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cmd_v(cmd_r) := cmd18_c;
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-- insert image counter
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-- insert image counter
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cmd_v(8 + num_bits_per_img_g + width_img_cnt_g
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cmd_v(8 + num_bits_per_img_g + width_img_cnt_g
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downto 8 + num_bits_per_img_g) := img_cnt_s;
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downto 8 + num_bits_per_img_g) := img_cnt_s;
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-- insert set selection
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-- insert set selection
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cmd_v(8 + num_bits_per_img_g + width_img_cnt_g + width_set_sel_g-1
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cmd_v(8 + 31
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downto 8 + num_bits_per_img_g + width_img_cnt_g) := set_sel_i;
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downto 8 + num_bits_per_img_g + width_img_cnt_g) := set_sel_i;
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tx_v := true;
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tx_v := true;
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when CMD18_DATA =>
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when CMD18_DATA =>
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cmd_v(cmd_r) := cmd12_c;
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cmd_v(cmd_r) := cmd12_c;
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Line 945... |
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-------------------------------------------------------------------------------
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-------------------------------------------------------------------------------
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-- File History:
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-- File History:
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--
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--
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-- $Log: not supported by cvs2svn $
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-- $Log: not supported by cvs2svn $
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-- Revision 1.9 2007/02/25 18:24:12 arniml
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-- fix type handling of resets
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--
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-- Revision 1.8 2006/09/11 23:03:36 arniml
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-- Revision 1.8 2006/09/11 23:03:36 arniml
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-- disable outputs with reset
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-- disable outputs with reset
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--
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--
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-- Revision 1.7 2005/04/07 20:44:23 arniml
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-- Revision 1.7 2005/04/07 20:44:23 arniml
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-- add new port detached_o
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-- add new port detached_o
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