URL
https://opencores.org/ocsvn/ion/ion/trunk
Subversion Repositories ion
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- This comparison shows the changes necessary to convert path
/ion
- from Rev 239 to Rev 240
- ↔ Reverse comparison
Rev 239 → Rev 240
/trunk/vhdl/demo/c2sb_demo.vhdl
138,7 → 138,7
signal reset_sync : std_logic_vector(3 downto 0); |
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-- Reset pushbutton debouncing logic |
subtype t_debouncer is integer range 0 to CLOCK_FREQ*4; |
subtype t_debouncer is natural range 0 to CLOCK_FREQ*4; |
constant DEBOUNCING_DELAY : t_debouncer := 1500; |
signal debouncing_counter : t_debouncer := (CLOCK_FREQ/1000) * DEBOUNCING_DELAY; |
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257,6 → 257,7
reset => reset |
); |
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--############################################################################## |
-- GPIO and LEDs |
267,6 → 268,7
-- HEX display is mostly unused |
reg_display <= p0_out(31 downto 16); |
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-- Show the SD interface signals on the green leds for debug |
reg_gleds <= p1_in(0) & "0000" & p0_out(2 downto 0); |
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279,7 → 281,7
red_leds(5) <= '0'; |
red_leds(6) <= '0'; |
red_leds(7) <= '0'; |
red_leds(8) <= '0'; |
red_leds(8) <= reset; |
red_leds(9) <= clk_1hz; |
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364,7 → 366,7
end if; |
end process reset_debouncing; |
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-- |
-- Reset will be active and glitch free for some serious time (1.5 s). |
reset <= '1' when debouncing_counter /= 0 or pll_locked='0' else '0'; |
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-- Generate a 1-Hz 'clock' to flash a LED for visual reference. |