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1 | library ieee;\r | |
2 | use ieee.std_logic_1164.all;\r | |
3 | use ieee.std_logic_arith.all;\r | |
4 | use ieee.std_logic_unsigned.all;\r | |
5 | \r | |
6 | entity dhwk is\r | |
7 | port (\r | |
8 | \r | |
9 | -- General \r | |
10 | PCI_CLK : in std_logic;\r | |
11 | PCI_nRES : in std_logic;\r | |
12 | \r | |
13 | -- PCI target 32bits\r | |
14 | PCI_AD : inout std_logic_vector(31 downto 0);\r | |
15 | PCI_CBE : in std_logic_vector(3 downto 0);\r | |
16 | PCI_PAR : out std_logic; \r | |
17 | PCI_nFRAME : in std_logic;\r | |
18 | PCI_nIRDY : in std_logic;\r | |
19 | PCI_nTRDY : out std_logic;\r | |
20 | PCI_nDEVSEL : out std_logic;\r | |
21 | PCI_nSTOP : out std_logic;\r | |
22 | PCI_IDSEL : in std_logic;\r | |
23 | PCI_nPERR : out std_logic;\r | |
24 | PCI_nSERR : out std_logic;\r | |
25 | PCI_nINT : out std_logic;\r | |
26 | \r | |
27 | -- debug signals\r | |
28 | LED3 : out std_logic;\r | |
29 | LED2 : out std_logic;\r | |
30 | LED4 : out std_logic;\r | |
31 | LED5 : out std_logic\r | |
32 | \r | |
33 | );\r | |
34 | end dhwk;\r | |
35 | \r | |
36 | \r | |
37 | architecture dhwk_arch of dhwk is\r | |
38 | \r | |
39 | \r | |
40 | component pci32tlite\r | |
41 | port (\r | |
42 | \r | |
43 | -- General \r | |
44 | clk33 : in std_logic;\r | |
45 | nrst : in std_logic;\r | |
46 | \r | |
47 | -- PCI target 32bits\r | |
48 | ad : inout std_logic_vector(31 downto 0);\r | |
49 | cbe : in std_logic_vector(3 downto 0);\r | |
50 | par : out std_logic; \r | |
51 | frame : in std_logic;\r | |
52 | irdy : in std_logic;\r | |
53 | trdy : out std_logic;\r | |
54 | devsel : out std_logic;\r | |
55 | stop : out std_logic;\r | |
56 | idsel : in std_logic;\r | |
57 | perr : out std_logic;\r | |
58 | serr : out std_logic;\r | |
59 | intb : out std_logic;\r | |
60 | \r | |
61 | -- Master whisbone\r | |
62 | wb_adr_o : out std_logic_vector(24 downto 1); \r | |
63 | wb_dat_i : in std_logic_vector(15 downto 0);\r | |
64 | wb_dat_o : out std_logic_vector(15 downto 0);\r | |
65 | wb_sel_o : out std_logic_vector(1 downto 0);\r | |
66 | wb_we_o : out std_logic;\r | |
67 | wb_stb_o : out std_logic;\r | |
68 | wb_cyc_o : out std_logic;\r | |
69 | wb_ack_i : in std_logic;\r | |
70 | wb_err_i : in std_logic;\r | |
71 | wb_int_i : in std_logic;\r | |
72 | \r | |
73 | -- debug signals\r | |
74 | debug_init : out std_logic;\r | |
75 | debug_access : out std_logic \r | |
76 | \r | |
77 | );\r | |
78 | end component;\r | |
79 | \r | |
80 | component heartbeat\r | |
81 | port (\r | |
82 | clk_i : in std_logic;\r | |
83 | nrst_i : in std_logic;\r | |
84 | led2_o : out std_logic;\r | |
85 | led3_o : out std_logic;\r | |
86 | led4_o : out std_logic;\r | |
87 | led5_o : out std_logic\r | |
88 | );\r | |
89 | end component;\r | |
90 | \r | |
91 | component generic_fifo_sc_a\r | |
92 | port (\r | |
93 | clk : in std_logic;\r | |
94 | rst : in std_logic;\r | |
95 | clr : in std_logic;\r | |
96 | din : in std_logic_vector(7 downto 0);\r | |
97 | we : in std_logic;\r | |
98 | dout : out std_logic_vector(7 downto 0);\r | |
99 | re : in std_logic;\r | |
100 | full : out std_logic;\r | |
101 | full_r : out std_logic;\r | |
102 | empty : out std_logic;\r | |
103 | empty_r : out std_logic;\r | |
104 | full_n : out std_logic;\r | |
105 | full_n_r : out std_logic;\r | |
106 | empty_n : out std_logic;\r | |
107 | empty_n_r : out std_logic;\r | |
108 | level : out std_logic_vector(1 downto 0)\r | |
109 | );\r | |
110 | end component;\r | |
111 | \r | |
112 | component wb_fifo\r | |
113 | port (\r | |
114 | clk_i : in std_logic;\r | |
115 | nrst_i : in std_logic;\r | |
116 | \r | |
117 | wb_adr_i : in std_logic_vector(24 downto 1);\r | |
118 | wb_dat_o : out std_logic_vector(15 downto 0);\r | |
119 | wb_dat_i : in std_logic_vector(15 downto 0);\r | |
120 | wb_sel_i : in std_logic_vector(1 downto 0);\r | |
121 | wb_we_i : in std_logic;\r | |
122 | wb_stb_i : in std_logic;\r | |
123 | wb_cyc_i : in std_logic;\r | |
124 | wb_ack_o : out std_logic;\r | |
125 | wb_err_o : out std_logic;\r | |
126 | wb_int_o : out std_logic;\r | |
127 | \r | |
128 | fifo_data_i : in std_logic_vector(7 downto 0);\r | |
129 | fifo_data_o : out std_logic_vector(7 downto 0);\r | |
130 | \r | |
131 | fifo_we_o : out std_logic;\r | |
132 | fifo_re_o : out std_logic\r | |
133 | );\r | |
134 | end component;\r | |
135 | \r | |
136 | signal wb_adr : std_logic_vector(24 downto 1); \r | |
137 | signal wb_dat_out : std_logic_vector(15 downto 0);\r | |
138 | signal wb_dat_in : std_logic_vector(15 downto 0);\r | |
139 | signal wb_sel : std_logic_vector(1 downto 0);\r | |
140 | signal wb_we : std_logic;\r | |
141 | signal wb_stb : std_logic;\r | |
142 | signal wb_cyc : std_logic;\r | |
143 | signal wb_ack : std_logic;\r | |
144 | signal wb_err : std_logic;\r | |
145 | signal wb_int : std_logic;\r | |
146 | \r | |
147 | signal fifo_din : std_logic_vector(7 downto 0);\r | |
148 | signal fifo_dout : std_logic_vector(7 downto 0);\r | |
149 | signal fifo_we : std_logic;\r | |
150 | signal fifo_re : std_logic;\r | |
151 | \r | |
152 | \r | |
153 | \r | |
154 | begin\r | |
155 | \r | |
156 | u_pci: component pci32tlite\r | |
157 | port map(\r | |
158 | clk33 => PCI_CLK,\r | |
159 | nrst => PCI_nRES,\r | |
160 | ad => PCI_AD,\r | |
161 | cbe => PCI_CBE,\r | |
162 | par => PCI_PAR,\r | |
163 | frame => PCI_nFRAME,\r | |
164 | irdy => PCI_nIRDY,\r | |
165 | trdy => PCI_nTRDY,\r | |
166 | devsel => PCI_nDEVSEL,\r | |
167 | stop => PCI_nSTOP,\r | |
168 | idsel => PCI_IDSEL,\r | |
169 | perr => PCI_nPERR,\r | |
170 | serr => PCI_nSERR,\r | |
171 | intb => PCI_nINT,\r | |
172 | wb_adr_o => wb_adr, \r | |
173 | wb_dat_i => wb_dat_out,\r | |
174 | wb_dat_o => wb_dat_in,\r | |
175 | wb_sel_o => wb_sel, \r | |
176 | wb_we_o => wb_we,\r | |
177 | wb_stb_o => wb_stb, \r | |
178 | wb_cyc_o => wb_cyc,\r | |
179 | wb_ack_i => wb_ack,\r | |
180 | wb_err_i => wb_err,\r | |
181 | wb_int_i => wb_int\r | |
182 | -- debug_init => LED3,\r | |
183 | -- debug_access => LED2\r | |
184 | );\r | |
185 | \r | |
186 | my_generic_fifo: component generic_fifo_sc_a\r | |
187 | port map(\r | |
188 | clk => PCI_CLK,\r | |
189 | rst => PCI_nRES,\r | |
190 | clr => '0',\r | |
191 | din => fifo_din,\r | |
192 | we => fifo_we,\r | |
193 | dout => fifo_dout,\r | |
194 | re => fifo_re\r | |
195 | -- full => ,\r | |
196 | -- full_r => ,\r | |
197 | -- empty => ,\r | |
198 | -- empty_r => ,\r | |
199 | -- full_n => ,\r | |
200 | -- full_n_r => ,\r | |
201 | -- empty_n => ,\r | |
202 | -- empty_n_r => ,\r | |
203 | -- level => ,\r | |
204 | );\r | |
205 | \r | |
206 | my_fifo: component wb_fifo\r | |
207 | port map(\r | |
208 | clk_i => PCI_CLK,\r | |
209 | nrst_i => PCI_nRES,\r | |
210 | \r | |
211 | wb_adr_i => wb_adr,\r | |
212 | wb_dat_o => wb_dat_out,\r | |
213 | wb_dat_i => wb_dat_in,\r | |
214 | wb_sel_i => wb_sel,\r | |
215 | wb_we_i => wb_we,\r | |
216 | wb_stb_i => wb_stb,\r | |
217 | wb_cyc_i => wb_cyc,\r | |
218 | wb_ack_o => wb_ack,\r | |
219 | wb_err_o => wb_err,\r | |
220 | wb_int_o => wb_int,\r | |
221 | \r | |
222 | fifo_data_i => fifo_dout,\r | |
223 | fifo_data_o => fifo_din,\r | |
224 | \r | |
225 | fifo_we_o => fifo_we,\r | |
226 | fifo_re_o => fifo_re\r | |
227 | );\r | |
228 | \r | |
229 | my_heartbeat: component heartbeat\r | |
230 | port map( \r | |
231 | clk_i => PCI_CLK,\r | |
232 | nrst_i => PCI_nRES,\r | |
233 | led2_o => LED2,\r | |
234 | led3_o => LED3,\r | |
235 | led4_o => LED4,\r | |
236 | led5_o => LED5\r | |
237 | );\r | |
238 | \r | |
239 | end dhwk_arch;\r |