/* * ---------------------------------------------------------------------------- * "THE BEER-WARE LICENSE" (Revision 42): * wrote this file. As long as you retain this notice you * can do whatever you want with this stuff. If we meet some day, and you think * this stuff is worth it, you can buy me a beer in return. Joerg Wunsch * ---------------------------------------------------------------------------- * * IO feature compatibility definitions for various AVRs. * * $Id: iocompat.h,v 1.6.2.1 2008/03/17 22:08:46 joerg_wunsch Exp $ */ #if !defined(IOCOMPAT_H) #define IOCOMPAT_H 1 /* * Device-specific adjustments: * * Supply definitions for the location of the OCR1[A] port/pin, the * name of the OCR register controlling the PWM, and adjust interrupt * vector names that differ from the one used in demo.c * [TIMER1_OVF_vect]. */ #if defined(__AVR_AT90S2313__) # define OC1 PB3 # define OCR OCR1 # define DDROC DDRB # define TIMER1_OVF_vect TIMER1_OVF1_vect #elif defined(__AVR_AT90S2333__) || defined(__AVR_AT90S4433__) # define OC1 PB1 # define DDROC DDRB # define OCR OCR1 #elif defined(__AVR_AT90S4414__) || defined(__AVR_AT90S8515__) || \ defined(__AVR_AT90S4434__) || defined(__AVR_AT90S8535__) || \ defined(__AVR_ATmega163__) || defined(__AVR_ATmega8515__) || \ defined(__AVR_ATmega8535__) || \ defined(__AVR_ATmega164P__) || defined(__AVR_ATmega324P__) || \ defined(__AVR_ATmega644__) || defined(__AVR_ATmega644P__) || \ defined(__AVR_ATmega1284P__) # define OC1 PD5 # define DDROC DDRD # define OCR OCR1A # if !defined(TIMSK) /* new ATmegas */ # define TIMSK TIMSK1 # endif #elif defined(__AVR_ATmega8__) || defined(__AVR_ATmega48__) || \ defined(__AVR_ATmega88__) || defined(__AVR_ATmega168__) # define OC1 PB1 # define DDROC DDRB # define OCR OCR1A # if !defined(TIMSK) /* ATmega48/88/168 */ # define TIMSK TIMSK1 # endif /* !defined(TIMSK) */ #elif defined(__AVR_ATtiny2313__) # define OC1 PB3 # define OCR OCR1A # define DDROC DDRB #elif defined(__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || \ defined(__AVR_ATtiny84__) # define OC1 PA6 # define DDROC DDRA # if !defined(OCR1A) # /* work around misspelled name in avr-libc 1.4.[0..1] */ # define OCR OCRA1 # else # define OCR OCR1A # endif # define TIMSK TIMSK1 # define TIMER1_OVF_vect TIM1_OVF_vect /* XML and datasheet mismatch */ #elif defined(__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || \ defined(__AVR_ATtiny85__) /* Timer 1 is only an 8-bit timer on these devices. */ # define OC1 PB1 # define DDROC DDRB # define OCR OCR1A # define TCCR1A TCCR1 # define TCCR1B TCCR1 # define TIMER1_OVF_vect TIM1_OVF_vect # define TIMER1_TOP 255 /* only 8-bit PWM possible */ # define TIMER1_PWM_INIT _BV(PWM1A) | _BV(COM1A1) # define TIMER1_CLOCKSOURCE _BV(CS12) /* use 1/8 prescaler */ #elif defined(__AVR_ATtiny26__) /* Rather close to ATtinyX5 but different enough for its own section. */ # define OC1 PB1 # define DDROC DDRB # define OCR OCR1A # define TIMER1_OVF_vect TIMER1_OVF1_vect # define TIMER1_TOP 255 /* only 8-bit PWM possible */ # define TIMER1_PWM_INIT _BV(PWM1A) | _BV(COM1A1) # define TIMER1_CLOCKSOURCE _BV(CS12) /* use 1/8 prescaler */ /* * Without setting OCR1C to TOP, the ATtiny26 does not trigger an * overflow interrupt in PWM mode. */ # define TIMER1_SETUP_HOOK() OCR1C = 255 #elif defined(__AVR_ATtiny261__) || defined(__AVR_ATtiny461__) || \ defined(__AVR_ATtiny861__) # define OC1 PB1 # define DDROC DDRB # define OCR OCR1A # define TIMER1_PWM_INIT _BV(WGM10) | _BV(PWM1A) | _BV(COM1A1) /* * While timer 1 could be operated in 10-bit mode on these devices, * the handling of the 10-bit IO registers is more complicated than * that of the 16-bit registers of other AVR devices (no combined * 16-bit IO operations possible), so we restrict this demo to 8-bit * mode which is pretty standard. */ # define TIMER1_TOP 255 # define TIMER1_CLOCKSOURCE _BV(CS12) /* use 1/8 prescaler */ #elif defined(__AVR_ATmega32__) || defined(__AVR_ATmega16__) # define OC1 PD5 # define DDROC DDRD # define OCR OCR1A #elif defined(__AVR_ATmega64__) || defined(__AVR_ATmega128__) || \ defined(__AVR_ATmega165__) || defined(__AVR_ATmega169__) || \ defined(__AVR_ATmega325__) || defined(__AVR_ATmega3250__) || \ defined(__AVR_ATmega645__) || defined(__AVR_ATmega6450__) || \ defined(__AVR_ATmega329__) || defined(__AVR_ATmega3290__) || \ defined(__AVR_ATmega649__) || defined(__AVR_ATmega6490__) || \ defined(__AVR_ATmega640__) || \ defined(__AVR_ATmega1280__) || defined(__AVR_ATmega1281__) || \ defined(__AVR_ATmega2560__) || defined(__AVR_ATmega2561__) # define OC1 PB5 # define DDROC DDRB # define OCR OCR1A # if !defined(PB5) /* work around missing bit definition */ # define PB5 5 # endif # if !defined(TIMSK) /* new ATmegas */ # define TIMSK TIMSK1 # endif #else # error "Don't know what kind of MCU you are compiling for" #endif /* * Map register names for older AVRs here. */ #if !defined(COM1A1) # define COM1A1 COM11 #endif #if !defined(WGM10) # define WGM10 PWM10 # define WGM11 PWM11 #endif /* * Provide defaults for device-specific macros unless overridden * above. */ #if !defined(TIMER1_TOP) # define TIMER1_TOP 1023 /* 10-bit PWM */ #endif #if !defined(TIMER1_PWM_INIT) # define TIMER1_PWM_INIT _BV(WGM10) | _BV(WGM11) | _BV(COM1A1) #endif #if !defined(TIMER1_CLOCKSOURCE) # define TIMER1_CLOCKSOURCE _BV(CS10) /* full clock */ #endif #endif /* !defined(IOCOMPAT_H) */