| 1 |
2 |
rherveille |
--
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| 2 |
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-- generate clocks
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| 3 |
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--
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| 4 |
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-- wishbone clock 200MHz
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| 5 |
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force -freeze vga/clk_i 0 0ns, 1 2.5ns -r {5ns}
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| 6 |
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-- pixel clock 36MHz
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| 7 |
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force -freeze vga/pclk 0 0ns, 1 13ns -r {26ns}
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| 8 |
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| 9 |
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| 10 |
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--
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| 11 |
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-- generate resets
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| 12 |
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--
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| 13 |
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force -freeze vga/nreset 1 0ns
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| 14 |
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force -freeze vga/rst_i 1 0ns, 0 100ns
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| 15 |
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| 16 |
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| 17 |
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--
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| 18 |
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-- fill registers
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| 19 |
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--
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| 20 |
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-- horizontal timing register thsync: 5pixels, thgdel: 10pixels, thgate 25pixels, this should trigger ERR_O (no 32bit access)
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| 21 |
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force -freeze /vga/cyc_i 1 118ns, 0 123ns
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| 22 |
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force -freeze /vga/sel_i 1101 118ns, 0000 123ns
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| 23 |
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force -freeze /vga/stb_i 1 118ns, 0 123ns
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| 24 |
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force -freeze /vga/we_i 1 118ns, 0 123ns
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| 25 |
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force -freeze /vga/adr_i 010 118ns, ZZZ 123ns
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| 26 |
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force -freeze /vga/sdat_i 16#04090018 118ns, 16#ZZZZZZZZ 123ns
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| 27 |
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| 28 |
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-- horizontal timing register thsync: 5pixels, thgdel: 10pixels, thgate 25pixels, normal cycle
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| 29 |
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force -freeze /vga/cyc_i 1 128ns, 0 133ns
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| 30 |
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force -freeze /vga/sel_i 1111 128ns, 0000 133ns
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| 31 |
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force -freeze /vga/stb_i 1 128ns, 0 133ns
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| 32 |
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force -freeze /vga/we_i 1 128ns, 0 133ns
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| 33 |
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force -freeze /vga/adr_i 010 128ns, ZZZ 133ns
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| 34 |
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force -freeze /vga/sdat_i 16#04090018 128ns, 16#ZZZZZZZZ 133ns
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| 35 |
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| 36 |
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-- vertical timing register tvsync: 5lines, thgdel: 1line, thgate 2lines
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| 37 |
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force -freeze /vga/cyc_i 1 138ns, 0 143ns
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| 38 |
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force -freeze /vga/sel_i 1111 138ns, 0000 143ns
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| 39 |
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force -freeze /vga/stb_i 1 138ns, 0 143ns
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| 40 |
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force -freeze /vga/we_i 1 138ns, 0 143ns
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| 41 |
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force -freeze /vga/adr_i 011 138ns, ZZZ 143ns
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| 42 |
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force -freeze /vga/sdat_i 16#05010002 138ns, 16#ZZZZZZZZ 143ns
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| 43 |
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| 44 |
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-- horizontal/vertical length register: hlen: 45pixels, vlen: 10lines
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| 45 |
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force -freeze /vga/cyc_i 1 148ns, 0 153ns
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| 46 |
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force -freeze /vga/sel_i 1111 148ns, 0000 153ns
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| 47 |
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force -freeze /vga/stb_i 1 148ns, 0 153ns
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| 48 |
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force -freeze /vga/we_i 1 148ns, 0 153ns
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| 49 |
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force -freeze /vga/adr_i 100 148ns, ZZZ 153ns
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| 50 |
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force -freeze /vga/sdat_i 16#002c000A 148ns, 16#ZZZZZZZZ 153ns
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| 51 |
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| 52 |
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-- color lookup table base address 0x20000000
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| 53 |
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force -freeze /vga/cyc_i 1 158ns, 0 163ns
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| 54 |
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force -freeze /vga/sel_i 1111 158ns, 0000 163ns
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| 55 |
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force -freeze /vga/stb_i 1 158ns, 0 163ns
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| 56 |
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force -freeze /vga/we_i 1 158ns, 0 163ns
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| 57 |
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force -freeze /vga/adr_i 111 158ns, ZZZ 163ns
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| 58 |
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force -freeze /vga/sdat_i 16#20000000 158ns, 16#ZZZZZZZZ 163ns
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| 59 |
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| 60 |
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-- video memory base address A: 0x00000000
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| 61 |
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force -freeze /vga/cyc_i 1 168ns, 0 173ns
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| 62 |
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force -freeze /vga/sel_i 1111 168ns, 0000 173ns
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| 63 |
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force -freeze /vga/stb_i 1 168ns, 0 173ns
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| 64 |
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force -freeze /vga/we_i 1 168ns, 0 173ns
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| 65 |
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force -freeze /vga/adr_i 101 168ns, ZZZ 173ns
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| 66 |
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force -freeze /vga/sdat_i 16#00000000 168ns, 16#ZZZZZZZZ 173ns
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| 67 |
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| 68 |
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-- video memory base address A: 0x15000000
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| 69 |
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force -freeze /vga/cyc_i 1 178ns, 0 183ns
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| 70 |
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force -freeze /vga/sel_i 1111 178ns, 0000 183ns
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| 71 |
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force -freeze /vga/stb_i 1 178ns, 0 183ns
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| 72 |
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force -freeze /vga/we_i 1 178ns, 0 183ns
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| 73 |
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force -freeze /vga/adr_i 110 178ns, ZZZ 183ns
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| 74 |
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force -freeze /vga/sdat_i 16#15000000 178ns, 16#ZZZZZZZZ 183ns
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| 75 |
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| 76 |
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-- control register, bl-pos, cl-pos, vs-pos, hs-pos, 8bit gray 8bpp, vbl-2cycle, bs-en, bsi-en, hi-en, vi-en, v-en
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| 77 |
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force -freeze /vga/cyc_i 1 188ns, 0 193ns
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| 78 |
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force -freeze /vga/sel_i 1111 188ns, 0000 193ns
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| 79 |
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force -freeze /vga/stb_i 1 188ns, 0 193ns
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| 80 |
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force -freeze /vga/we_i 1 188ns, 0 193ns
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| 81 |
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force -freeze /vga/adr_i 000 188ns, ZZZ 193ns
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| 82 |
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force -freeze /vga/sdat_i 16#0000009f 188ns, 16#ZZZZZZZZ 193ns
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| 83 |
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| 84 |
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-- present video memory data to vga controller
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| 85 |
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force -freeze /vga/mdat_i 16#01234567 208ns, 16#89abcdef 213ns, 16#76543210 218ns, 16#fedcba98 223ns
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| 86 |
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force -freeze /vga/mdat_i 16#01234567 228ns, 16#89abcdef 233ns, 16#76543210 238ns, 16#fedcba98 243ns
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| 87 |
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force -freeze /vga/mdat_i 16#01234567 248ns, 16#89abcdef 253ns, 16#76543210 258ns
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| 88 |
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force -freeze /vga/ack_i 0 0ns, 1 208ns, 0 258ns
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| 89 |
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force -freeze /vga/err_i 0 0ns
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| 90 |
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| 91 |
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-- present color lookup table data to vga controller
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| 92 |
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force -freeze /vga/mdat_i 16#00112233 265ns, 16#00445566 270ns, 16#00778899 275ns, 16#00aabbcc 280ns
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| 93 |
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force -freeze /vga/ack_i 1 265ns, 0 285ns
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| 94 |
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| 95 |
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force -freeze /vga/mdat_i 16#00ddeeff 310ns, 16#00332211 315ns, 16#00665544 320ns, 16#00998877 325ns
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| 96 |
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force -freeze /vga/ack_i 1 310ns, 0 330ns
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| 97 |
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| 98 |
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| 99 |
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-- keep ACK_I signal asserted (acknowledge all cycles)
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| 100 |
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force -freeze /vga/ack_i 1 350ns
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| 101 |
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| 102 |
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-- INTA_O is asserted (horizontal interrupt), clear it
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| 103 |
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force -freeze /vga/cyc_i 1 1408ns, 0 1413ns
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| 104 |
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force -freeze /vga/sel_i 1111 1408ns, 0000 1413ns
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| 105 |
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force -freeze /vga/stb_i 1 1408ns, 0 1413ns
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| 106 |
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force -freeze /vga/we_i 1 1408ns, 0 1413ns
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| 107 |
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force -freeze /vga/adr_i 001 1408ns, ZZZ 1413ns
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| 108 |
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force -freeze /vga/sdat_i 16#00000020 1408ns, 16#ZZZZZZZZ 1413ns
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| 109 |
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| 110 |
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| 111 |
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| 112 |
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| 113 |
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