blob: ab4f2bf90637323a73d03ae577920bcb14139540 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
#ifndef I2CLCD_H_
#define I2CLCD_H_
//*******************************************************************************************************************
// REQUIRED Define Statements
//*******************************************************************************************************************
// Port Expander
#define MCP23017 B00100000 //MCP23017 I2C Address was B01000000
// xxx <- These are the I2C address bits
#define IOCON 0x0A // MCP23017 Config Reg.
#define IODIRA 0x00 // MCP23017 address of I/O direction
#define IODIRB 0x01 // MCP23017 1=input
#define IPOLA 0x02 // MCP23017 address of I/O Polarity
#define IPOLB 0x03 // MCP23017 1= Inverted
#define GPIOA 0x12 // MCP23017 address of GP Value
#define GPIOB 0x13 // MCP23017 address of GP Value
#define GPINTENA 0x04 // MCP23017 IOC Enable
#define GPINTENB 0x05 // MCP23017 IOC Enable
#define INTCONA 0x08 // MCP23017 Interrupt Cont
#define INTCONB 0x09 // MCP23017 1= compair to DEFVAL(A or B) 0= change
#define DEFVALA 0x06 // MCP23017 IOC Default value
#define DEFVALB 0x07 // MCP23017 if INTCONA set then INT. if diff.
#define GPPUA 0x0C // MCP23017 Weak Pull-Ups
#define GPPUB 0x0D // MCP23017 1= Pulled HIgh via internal 100k
// LCD
#define CMD_CLR 0x01 // clear the LCD
#define CMD_HOME 0x02 // move cursor to home position
#define CrsrLf 0x10 // move cursor left
#define CrsrRt 0x14 // move cursor right
#define CMD_LEFT 0x18 // shift displayed chars left
#define CMD_RIGHT 0x1C // shift displayed chars right
#define DDRam 0x80 // Display Data RAM control
#define ddram2 0xC0 // 9th position of display (not in next
#define RS_pin B00000100
#define RW_pin B00000010
#define E_pin B00000001
#define screen_lines 2 // this is the amount of lines the LCD screen has
#endif
|
