main.c File Reference

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Detailed Description

Atmel Corporation

• File : main.c
• 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.c.

#include <inavr.h>
#include <iotiny24.h>
#include "main.h"
#include "USI_TWI_Master.h"
#include "LCD.h"
#include "KPD.h"

Include dependency graph for main.c:

Go to the source code of this file.

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
__eeprom unsigned char	CODE_ACCESS [CODE_ACCESS_LENGTH+1] = {"1234 "}
unsigned char	KeyBuffer [CODE_MAX_LENGTH]
__flash unsigned char	STRING_CLOSE [] = {" LOCK CLOSED "}
__flash unsigned char	STRING_OPEN [] = {" LOCK OPEN "}
__flash unsigned char	STRING_WELCOME [] = {"Tiny24 CODE LOCK"}

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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

__eeprom unsigned char CODE_ACCESS[CODE_ACCESS_LENGTH+1] = {"1234 "}

Definition at line 72 of file main.c. Referenced by CheckAccess().

unsigned char KeyBuffer[CODE_MAX_LENGTH]

Definition at line 74 of file main.c. Referenced by CheckAccess(), ClearInputBuffer(), and main().

__flash unsigned char STRING_CLOSE[] = {" LOCK CLOSED "}

Definition at line 70 of file main.c. Referenced by CheckAccess().

__flash unsigned char STRING_OPEN[] = {" LOCK OPEN "}

Definition at line 69 of file main.c. Referenced by OpenLock().

__flash unsigned char STRING_WELCOME[] = {"Tiny24 CODE LOCK"}

Definition at line 68 of file main.c. Referenced by main().

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