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added GPIO driver
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1brahimmohamed committed Oct 4, 2022
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1 change: 1 addition & 0 deletions .gitignore
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/.metadata/
115 changes: 115 additions & 0 deletions GPIOs/.cproject
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27 changes: 27 additions & 0 deletions GPIOs/.project
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<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>GPIOs</name>
<comment></comment>
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7 changes: 7 additions & 0 deletions GPIOs/.settings/de.innot.avreclipse.core.prefs
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avrtarget/ClockFrequency=16000000
avrtarget/ExtRAMSize=0
avrtarget/ExtendedRAM=false
avrtarget/MCUType=atmega32
avrtarget/UseEEPROM=false
avrtarget/UseExtendedRAMforHeap=true
eclipse.preferences.version=1
2 changes: 2 additions & 0 deletions GPIOs/.settings/org.eclipse.core.resources.prefs
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eclipse.preferences.version=1
encoding/<project>=UTF-8
34 changes: 34 additions & 0 deletions GPIOs/src/common_macros.h
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/******************************************************************************
*
* Module: Common - Macros
* File Name: Common_Macros.h
* Description: Commonly used Macros
* Author: Ibrahim Mohamed
*
*******************************************************************************/

#ifndef COMMON_MACROS
#define COMMON_MACROS

/* Set a certain bit in any register */
#define SET_BIT(REG,BIT) (REG|=(1<<BIT))

/* Clear a certain bit in any register */
#define CLEAR_BIT(REG,BIT) (REG&=(~(1<<BIT)))

/* Toggle a certain bit in any register */
#define TOGGLE_BIT(REG,BIT) (REG^=(1<<BIT))

/* Rotate right the register value with specific number of rotates */
#define ROR(REG,num) ( REG= (REG>>num) | (REG<<(8-num)) )

/* Rotate left the register value with specific number of rotates */
#define ROL(REG,num) ( REG= (REG<<num) | (REG>>(8-num)) )

/* Check if a specific bit is set in any register and return true if yes */
#define BIT_IS_SET(REG,BIT) ( REG & (1<<BIT) )

/* Check if a specific bit is cleared in any register and return true if yes */
#define BIT_IS_CLEAR(REG,BIT) ( !(REG & (1<<BIT)) )

#endif
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