From 9cf69f324186932e4308e1ca0b19f563dab90e5e Mon Sep 17 00:00:00 2001 From: Patrick Lehmann Date: Thu, 29 Dec 2022 23:16:27 +0100 Subject: Added Get***Symbol functions. Improved Symbol handling. --- .../pyunit/dom/examples/StopWatch/sync_Bits.vhdl | 42 ++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 testsuite/pyunit/dom/examples/StopWatch/sync_Bits.vhdl (limited to 'testsuite/pyunit/dom/examples/StopWatch/sync_Bits.vhdl') diff --git a/testsuite/pyunit/dom/examples/StopWatch/sync_Bits.vhdl b/testsuite/pyunit/dom/examples/StopWatch/sync_Bits.vhdl new file mode 100644 index 000000000..88074c884 --- /dev/null +++ b/testsuite/pyunit/dom/examples/StopWatch/sync_Bits.vhdl @@ -0,0 +1,42 @@ +-- Author: Patrick Lehmann +-- License: MIT +-- +-- A generic counter module used in the StopWatch example. +-- +context work.StopWatch_ctx; + + +-- Encoder that translates from 4-bit binary (BCD) to 7-segment code. +entity seg7_Encoder is + port ( + BCDValue : in T_BCD; + Dot : in std_logic := '0'; + + Seg7Code : out std_logic_vector(7 downto 0) + ); +end entity; + + +architecture rtl of seg7_Encoder is + +begin + process(BCDValue, Dot) + variable temp : std_logic_vector(6 downto 0); + begin + case BCDValue is -- segments: GFEDCBA -- Segment Pos. Index Pos. + when x"0" => temp := "0111111"; -- + when x"1" => temp := "0000110"; -- + when x"2" => temp := "1011011"; -- AAA 000 + when x"3" => temp := "1001111"; -- F B 5 1 + when x"4" => temp := "1100110"; -- F B 5 1 + when x"5" => temp := "1101101"; -- GGG 666 + when x"6" => temp := "1111101"; -- E C 4 2 + when x"7" => temp := "0000111"; -- E C 4 2 + when x"8" => temp := "1111111"; -- DDD DOT 333 7 + when x"9" => temp := "1101111"; -- + when others => temp := "XXXXXXX"; -- + end case; + + Seg7Code <= Dot & temp; + end process; +end architecture; -- cgit v1.2.3