diff options
Diffstat (limited to '2.3-1/src/c/hardware/avr/gpio/u8AVRDigitalIns.c')
| -rw-r--r-- | 2.3-1/src/c/hardware/avr/gpio/u8AVRDigitalIns.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/2.3-1/src/c/hardware/avr/gpio/u8AVRDigitalIns.c b/2.3-1/src/c/hardware/avr/gpio/u8AVRDigitalIns.c index 6b61a56b..a2517b98 100644 --- a/2.3-1/src/c/hardware/avr/gpio/u8AVRDigitalIns.c +++ b/2.3-1/src/c/hardware/avr/gpio/u8AVRDigitalIns.c @@ -1,3 +1,13 @@ +// Copyright (C) 2017 - IIT Bombay - FOSSEE +// +// This file must be used under the terms of the CeCILL. +// This source file is licensed as described in the file COPYING, which +// you should have received as part of this distribution. The terms +// are also available at +// http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt +// Organization: FOSSEE, IIT Bombay +// Email: toolbox@scilab.in + // Function to get current state (high\low) of a digital pin on AVR // // Calling Sequence @@ -28,27 +38,26 @@ uint8 u8AVRDigitalIns(uint8 port,uint8 pin) { - uint8 state = 0; + unsigned int state = 0; if(port == PORT_A) { - state = (uint8)(PINA & (1<<pin)); - return state; + state = bit_is_clear(PINA,pin); + return !state; } if(port == PORT_B) { - state = (uint8)(PINB & (1<<pin)); - return state; + state = bit_is_clear(PINB,pin); + return !state; } if(port == PORT_C) { - state = (uint8)(PINC & (1<<pin)); - return state; + state = bit_is_clear(PINC,pin); + return !state; } if(port == PORT_D) { - state = (uint8)(PIND & (1<<pin)); - return state; + state = bit_is_clear(PIND,pin); + return !state; } -//return state; } |