Revision 686
Added by markw over 7 years ago
| ultimate_cart/veronica/veronica.vhd | ||
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-- Some unknown inputs
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abort : in std_logic; -- another interrupt (active low)
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be : in std_logic; -- bus enable (active high)
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err_i : in std_logic; -- set to 1 in example
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rty_i : in std_logic; -- set to 1 in example
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err_i : in std_logic; -- set to 0 in example
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rty_i : in std_logic; -- set to 0 in example
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-- Some unknown outputs
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vpa : out std_logic; -- valid program address
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| ... | ... | |
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rdy => not(atari_bus_request), -- 6502 priority for sram access!
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abort => '1',
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be => '1',
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err_i => '1',
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rty_i => '1',
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err_i => '0',
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rty_i => '0',
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ad => veronica_address,
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rw => veronica_w_n,
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dw => veronica_write_data,
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Also available in: Unified diff
Disable err_i, with that high cpu freezes on rdy dropped. Re-reading example it was held low there.