VHDL-verification
Package to ease directed testing of HDL entities
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Emulates on-board leds. More...
Emulates on-board leds.
Checks for events on led_input
port, and reports the current state of the leds each time any the input bit changes. Does not keep any internal memory, led_input
is assumed to be directly connected to the leds.
Definition at line 20 of file led_emu.vhd.
Entities | |
led_emu_arch | architecture |
Architecture is based on just a single process. More... | |
Libraries | |
ieee | |
Use IEEE standard definitions library. |
Use Clauses | |
std_logic_1164 | |
Use std_logic* signal types. | |
vhdl_verification | Package <vhdl_verification> |
Use the slv2string function present in the vhdl_verification package. |
Generics | |
ACTIVE_VALUE | std_logic := ' 0 ' |
Led polarity. | |
NUM_LEDS | integer := 4 |
How many leds are we emulating. |
Ports | |
led_input | in std_logic_vector ( NUM_LEDS - 1 downto 0 ) |
Connect here the signal that drives the leds. |