main.h File Reference

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Detailed Description

Atmel Corporation

• File : main.h
• Compiler : IAR EWAVR 4.11A

• Support mail : avr@atmel.com

• Supported devices : This example is written for the ATtiny24.

• AppNote : AVR245: Code Lock with LCD.

• Description : Code lock application, which uses 4x4 keypad matrix and I2C LCD.

Revision

1.3

Date

Monday, October 10, 2005 13:23:34 UTC

Definition in file main.h.

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Go to the source code of this file.

Defines
#define	BUFSIZE   20
#define	CODE_ACCESS_LENGTH   4
#define	CODE_ADMIN_LENGTH   8
#define	CODE_MAX_LENGTH   8
#define	LOCK_PIN   PINA7
#define	LOOPS_PER_MS   143
Functions
void	Beep (unsigned int tone)
void	CheckAccess (void)
void	ClearInputBuffer (void)
void	Delay (unsigned int ms)
void	DelayBar (unsigned char sec)
void	Initialise (void)
void	main (void)
void	OpenLock (void)
__interrupt void	WDT_ISR (void)
Variables
unsigned char	KPD_KeyPressed
unsigned char	KPD_LastKey
unsigned char	messageBuf [BUFSIZE]

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Define Documentation

#define BUFSIZE   20

Definition at line 27 of file main.h.

#define CODE_ACCESS_LENGTH   4

Definition at line 25 of file main.h. Referenced by CheckAccess().

#define CODE_ADMIN_LENGTH   8

Definition at line 26 of file main.h.

#define CODE_MAX_LENGTH   8

Definition at line 24 of file main.h. Referenced by ClearInputBuffer(), and main().

#define LOCK_PIN   PINA7

Definition at line 28 of file main.h. Referenced by Initialise(), and OpenLock().

#define LOOPS_PER_MS   143

Definition at line 29 of file main.h.

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Function Documentation

void Beep (  unsigned int  tone  )

Definition at line 197 of file main.c. Referenced by main(), and OpenLock().

void CheckAccess (  void   )

Definition at line 137 of file main.c. References CODE_ACCESS, CODE_ACCESS_LENGTH, Delay(), KeyBuffer, KPD_Init(), LCD_PutXY(), OpenLock(), and STRING_CLOSE. Referenced by main().

void ClearInputBuffer (  void   )

Definition at line 129 of file main.c. References CODE_MAX_LENGTH, and KeyBuffer. Referenced by main(), and WDT_ISR().

void Delay (  unsigned int  ms  )

Definition at line 216 of file main.c. Referenced by CheckAccess(), DelayBar(), and main().

void DelayBar (  unsigned char  sec  )

Definition at line 172 of file main.c. References Delay(), LCD_PutXY(), and LCD_PutXY_Raw(). Referenced by OpenLock().

void Initialise (  void   )

Definition at line 113 of file main.c. References KPD_Init(), LCD_Init(), LOCK_PIN, and USI_TWI_Master_Initialise(). Referenced by main().

void main (  void   )

Definition at line 77 of file main.c. References Beep(), CheckAccess(), ClearInputBuffer(), CODE_MAX_LENGTH, Delay(), Initialise(), KeyBuffer, KPD_GetKey(), KPD_KeyPressed, LCD_ClearDisplay(), LCD_PutXY(), and STRING_WELCOME.

void OpenLock (  void   )

Definition at line 154 of file main.c. References Beep(), DelayBar(), LCD_PutXY(), LOCK_PIN, and STRING_OPEN. Referenced by CheckAccess().

__interrupt void WDT_ISR (  void   )

Definition at line 230 of file main.c. References ClearInputBuffer(), and LCD_ClearLine().

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Variable Documentation

unsigned char KPD_KeyPressed

Definition at line 25 of file KPD.c. Referenced by KPD_GetKey(), KPD_Init(), main(), and PCINT1_ISR().

unsigned char KPD_LastKey

Definition at line 26 of file KPD.c. Referenced by KPD_GetKey(), KPD_Init(), and PCINT1_ISR().

unsigned char messageBuf[BUFSIZE]

Definition at line 43 of file main.h. Referenced by LCD_Init(), LCD_PutXY_Raw(), and LCD_WriteLine().

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