diff options
Diffstat (limited to 'src/c/hardware/avr/gpio')
| -rw-r--r-- | src/c/hardware/avr/gpio/u8AVRDigitalIns.c | 63 | ||||
| -rw-r--r-- | src/c/hardware/avr/gpio/u8AVRDigitalOuts.c | 78 | ||||
| -rw-r--r-- | src/c/hardware/avr/gpio/u8AVRDigitalPortSetups.c | 81 | ||||
| -rw-r--r-- | src/c/hardware/avr/gpio/u8AVRDigitalSetups.c | 70 |
4 files changed, 292 insertions, 0 deletions
diff --git a/src/c/hardware/avr/gpio/u8AVRDigitalIns.c b/src/c/hardware/avr/gpio/u8AVRDigitalIns.c new file mode 100644 index 0000000..a2517b9 --- /dev/null +++ b/src/c/hardware/avr/gpio/u8AVRDigitalIns.c @@ -0,0 +1,63 @@ +// 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 +// u8AVRDigitalIns(port,pin) +// +// Parameters +// port : port of microcontroller to be used (1 for PORTA, 2 for PORTB,...) +// pin : pin of port (mentioned above) to be used +// Returns-> +// state : state of the pin (0 for low and 1 for high) +// +// Description +// Each AVR microcontroller has pins which can be configured as digital +// outputs. These are normally divided among some 'ports' (group of pins). +// User has to select one of these port and which pin of that port is to +// be read. Function returns current state of the pin '1' (high) or '0' (low). +// +// +// Examples +// state = u8AVRDigitalIns(1,0) +// +// Authors +// Siddhesh Wani +// + + +#include "AVRPeripheralGPIO.h" + +uint8 u8AVRDigitalIns(uint8 port,uint8 pin) +{ + unsigned int state = 0; + if(port == PORT_A) + { + state = bit_is_clear(PINA,pin); + return !state; + } + if(port == PORT_B) + { + state = bit_is_clear(PINB,pin); + return !state; + } + if(port == PORT_C) + { + state = bit_is_clear(PINC,pin); + return !state; + } + if(port == PORT_D) + { + state = bit_is_clear(PIND,pin); + return !state; + } + +} diff --git a/src/c/hardware/avr/gpio/u8AVRDigitalOuts.c b/src/c/hardware/avr/gpio/u8AVRDigitalOuts.c new file mode 100644 index 0000000..8998fc9 --- /dev/null +++ b/src/c/hardware/avr/gpio/u8AVRDigitalOuts.c @@ -0,0 +1,78 @@ +// 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 change state (high\low) of a digital output pin on AVR +// +// Calling Sequence +// u8AVRDigitalOuts(port,pin,state) +// +// Parameters +// port : port of microcontroller to be used (1 for PORTA, 2 for PORTB,...) +// pin : pin of port (mentioned above) to be used +// state : state to be outputed on pin (0 for low and 1 for high) +// +// Description +// Each AVR microcontroller has pins which can be configured as digital +// outputs. These are normally divided among some 'ports' (group of pins). +// User has to select one of these port and which pin of that port as +// digital output. Also, desired output state must be specified as +// '1' (high) or '0' (low). +// +// Examples +// u8AVRDigitalOuts(1,0,1) +// +// Authors +// Siddhesh Wani +// Ashish Kamble + + +#include "AVRPeripheralGPIO.h" + +void u8AVRDigitalOuts(uint8 port,uint8 pin,uint8 state) +{ + if(state == LOW) + {/*Make output pin high*/ + if(port == PORT_A) + { + PORTA = PORTA & ~(1<<pin); + } + if(port == PORT_B) + { + PORTB = PORTB & ~(1<<pin); + } + if(port == PORT_C) + { + PORTC = PORTC & ~(1<<pin); + } + if(port == PORT_D) + { + PORTD = PORTD & ~(1<<pin); + } + } + else + {/*Make output pin high*/ + if(port == PORT_A) + { + PORTA = PORTA | (1<<pin); + } + if(port == PORT_B) + { + PORTB = PORTB | (1<<pin); + } + if(port == PORT_C) + { + PORTC = PORTC | (1<<pin); + } + if(port == PORT_D) + { + PORTD = PORTD | (1<<pin); + } + } +} diff --git a/src/c/hardware/avr/gpio/u8AVRDigitalPortSetups.c b/src/c/hardware/avr/gpio/u8AVRDigitalPortSetups.c new file mode 100644 index 0000000..54ec731 --- /dev/null +++ b/src/c/hardware/avr/gpio/u8AVRDigitalPortSetups.c @@ -0,0 +1,81 @@ +// 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 decide direction of a digital pin on AVR +// +// Calling Sequence +// AVRDigitalPortSetup(port,direction) +// +// Parameters +// port : port of microcontroller to be used (1 for PORTA, 2 for PORTB,...) +// direction : direction to be set for pin (0 for input, 1 for output) +// +// Description +// Each AVR microcontroller has pins which can be configured as digital +// outputs/inputs. These are normally divided among some 'ports' (group of pins). +// User has to select one of these port and which pin of that port to be +// used as digital output/input. Also, desired direction must be specified as +// 'INPUT' or 'OUTPUT'. +// +// Examples +// AVRDigitalPortSetup(1,0); //this function will PortA as input Port +// +// Authors +// Siddhesh Wani +// Ashish Kamble + + +#include "AVRPeripheralGPIO.h" + +uint8 u8AVRDigitalPortSetups(uint8 port,uint8 direction) +{ + if(direction == INPUT) + { + /*Set port as input*/ + if(port == PORT_A) + { + DDRA = 0x00; + } + if(port == PORT_B) + { + DDRB = 0x00; + } + if(port == PORT_C) + { + DDRC = 0x00; + } + if(port == PORT_D) + { + DDRD = 0x00; + } + } + else + { + /*Set port as output*/ + if(port == PORT_A) + { + DDRA = 0xFF; + } + if(port == PORT_B) + { + DDRB = 0xFF; + } + if(port == PORT_C) + { + DDRC = 0xFF; + } + if(port == PORT_D) + { + DDRD = 0xFF; + } + } + return 0; +} + diff --git a/src/c/hardware/avr/gpio/u8AVRDigitalSetups.c b/src/c/hardware/avr/gpio/u8AVRDigitalSetups.c new file mode 100644 index 0000000..e28c468 --- /dev/null +++ b/src/c/hardware/avr/gpio/u8AVRDigitalSetups.c @@ -0,0 +1,70 @@ +// Function to decide direction of a digital pin on AVR +// +// Calling Sequence +// AVRDigitalSetup(port,pin,direction) +// +// Parameters +// port : port of microcontroller to be used (1 for PORTA, 2 for PORTB,...) +// pin : pin of port (mentioned above) to be used +// direction : direction to be set for pin (0 for input, 1 for output) +// +// Description +// Each AVR microcontroller has pins which can be configured as digital +// outputs/inputs. These are normally divided among some 'ports' (group of pins). +// User has to select one of these port and which pin of that port to be +// used as digital output/input. Also, desired direction must be specified as +// 'INPUT' or 'OUTPUT'. +// +// Examples +// AVRDigitalSetup(1,0,1) +// +// Authors +// Siddhesh Wani +// + +#include "AVRPeripheralGPIO.h" + + +void u8AVRDigitalSetups(uint8 port,uint8 pin,uint8 direction) +{ + + if (direction == INPUT) + {/*Set pin as input*/ + if(port == PORT_A) + { + DDRA = DDRA & ~(1<<pin); + } + if(port == PORT_B) + { + DDRB = DDRB & ~(1<<pin); + } + if(port == PORT_C) + { + DDRC = DDRC & ~(1<<pin); + } + if(port == PORT_D) + { + DDRD = DDRD & ~(1<<pin); + } + } + else + {/*Set pin as output*/ + if(port == PORT_A) + { + DDRA = DDRA | (1<<pin); + } + if(port == PORT_B) + { + DDRB = DDRB | (1<<pin); + } + if(port == PORT_C) + { + DDRC = DDRC | (1<<pin); + } + if(port == PORT_D) + { + DDRD = DDRD | (1<<pin); + } + } +} + |