------------------------------------------------------------------------------
-- --
-- Copyright (C) 2020, AdaCore --
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------------------------------------------------------------------------------
with Ada.Unchecked_Conversion;
with HAL;
package PCD8544_Reg is
-- Basic mode
PCD8544_CMD_FUNCTION : constant := 2#0010_0000#;
PCD8544_CMD_DISPLAY : constant := 2#0000_1000#;
PCD8544_CMD_SET_X : constant := 2#1000_0000#;
PCD8544_CMD_SET_Y : constant := 2#0100_0000#;
-- Extended mode
PCD8544_CMD_SET_TC : constant := 2#0000_0100#;
PCD8544_CMD_SET_BIAS : constant := 2#0001_0000#;
PCD8544_CMD_SET_VOP : constant := 2#1000_0000#;
type PCD8544_Address_Mode is (Horizontal, Vertical);
type PCD8544_Function_Register is record
Power_Down : Boolean := True;
Address_Mode : PCD8544_Address_Mode := Horizontal;
Extended_Mode : Boolean := False;
Reserved : Boolean := False;
end record;
for PCD8544_Function_Register use record
Reserved at 0 range 3 .. 7;
Power_Down at 0 range 2 .. 2;
Address_Mode at 0 range 1 .. 1;
Extended_Mode at 0 range 0 .. 0;
end record;
for PCD8544_Function_Register'Size use 8;
type PCD8544_Display_Register is record
Enable : Boolean := False;
Invert : Boolean := False;
Reserved1 : Boolean := False;
Reserved2 : Boolean := False;
end record;
for PCD8544_Display_Register use record
Reserved2 at 0 range 3 .. 7;
Reserved1 at 0 range 1 .. 1;
Enable at 0 range 2 .. 2;
Invert at 0 range 0 .. 0;
end record;
for PCD8544_Display_Register'Size use 8;
function Convert is new Ada.Unchecked_Conversion
(PCD8544_Function_Register, HAL.UInt8);
function Convert is new Ada.Unchecked_Conversion
(PCD8544_Display_Register, HAL.UInt8);
end PCD8544_Reg;