LCD_16x2_CFG.vhd
57 lines
| 1.7 KiB
| text/x-vhdl
|
VhdlLexer
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r0 | -- Package File Template | ||
-- | ||||
-- Purpose: This package defines supplemental types, subtypes, | ||||
-- constants, and functions | ||||
library IEEE; | ||||
use IEEE.STD_LOGIC_1164.all; | ||||
package LCD_16x2_CFG is | ||||
type LCD_DRVR_CTRL_BUSS is | ||||
record | ||||
LCD_RW : std_logic; | ||||
LCD_RS : std_logic; | ||||
LCD_E : std_logic; | ||||
LCD_DATA : std_logic_vector(7 downto 0); | ||||
end record; | ||||
type LCD_DRVR_SYNCH_BUSS is | ||||
record | ||||
DRVR_READY : std_logic; | ||||
LCD_INITIALISED : std_logic; | ||||
end record; | ||||
type LCD_DRVR_CMD_BUSS is | ||||
record | ||||
Word : std_logic_vector(7 downto 0); | ||||
CMD_Data : std_logic; --CMD = '0' and data = '1' | ||||
Exec : std_logic; | ||||
Duration : std_logic_vector(1 downto 0); | ||||
end record; | ||||
type LCD_CFG_Tbl is array(0 to 4) of std_logic_vector(7 downto 0); | ||||
constant ClearDSPLY : std_logic_vector(7 downto 0):= X"01"; | ||||
constant FunctionSet : std_logic_vector(7 downto 0):= X"38"; | ||||
constant RetHome : std_logic_vector(7 downto 0):= X"02"; | ||||
constant SetEntryMode : std_logic_vector(7 downto 0):= X"06"; | ||||
constant DSPL_CTRL : std_logic_vector(7 downto 0):= X"0C"; | ||||
constant CursorON : std_logic_vector(7 downto 0):= X"0E"; | ||||
constant CursorOFF : std_logic_vector(7 downto 0):= X"0C"; | ||||
--===========================================================| | ||||
--======L C D D R I V E R T I M I N G C O D E=====| | ||||
--===========================================================| | ||||
constant Duration_4us : std_logic_vector(1 downto 0) := "00"; | ||||
constant Duration_100us : std_logic_vector(1 downto 0) := "01"; | ||||
constant Duration_4ms : std_logic_vector(1 downto 0) := "10"; | ||||
constant Duration_20ms : std_logic_vector(1 downto 0) := "11"; | ||||
end LCD_16x2_CFG; | ||||