--- /dev/null
+/*
+ sim_mega1281.c
+
+ Copyright 2008, 2009 Michel Pollet <buserror@gmail.com>
+
+ This file is part of simavr.
+
+ simavr is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ simavr is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with simavr. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include "sim_avr.h"
+#include "sim_core_declare.h"
+#include "avr_eeprom.h"
+#include "avr_flash.h"
+#include "avr_watchdog.h"
+#include "avr_extint.h"
+#include "avr_ioport.h"
+#include "avr_uart.h"
+#include "avr_adc.h"
+#include "avr_timer.h"
+#include "avr_spi.h"
+#include "avr_twi.h"
+
+void m1281_init(struct avr_t * avr);
+void m1281_reset(struct avr_t * avr);
+
+#define _AVR_IO_H_
+#define __ASSEMBLER__
+#include "avr/iom1281.h"
+
+/*
+ * This is a template for all of the 1281 devices, hopefully
+ */
+struct mcu_t {
+ avr_t core;
+ avr_eeprom_t eeprom;
+ avr_flash_t selfprog;
+ avr_watchdog_t watchdog;
+ avr_extint_t extint;
+ avr_ioport_t porta, portb, portc, portd, porte, portf, portg;
+ avr_uart_t uart0,uart1;
+ avr_adc_t adc;
+ avr_timer_t timer0,timer1,timer2,timer3;
+ avr_spi_t spi;
+ avr_twi_t twi;
+} mcu_mega1281 = {
+ .core = {
+ .mmcu = "atmega1281",
+ DEFAULT_CORE(4),
+
+ .init = m1281_init,
+ .reset = m1281_reset,
+
+ .rampz = RAMPZ, // extended program memory access
+ },
+ AVR_EEPROM_DECLARE(EE_READY_vect),
+ AVR_SELFPROG_DECLARE(SPMCSR, SPMEN, SPM_READY_vect),
+ AVR_WATCHDOG_DECLARE(WDTCSR, WDT_vect),
+ .extint = {
+ AVR_EXTINT_DECLARE(0, 'D', PD0),
+ AVR_EXTINT_DECLARE(1, 'D', PD1),
+ AVR_EXTINT_DECLARE(2, 'D', PD2),
+ AVR_EXTINT_DECLARE(3, 'D', PD3),
+ AVR_EXTINT_DECLARE(4, 'E', PE4),
+ AVR_EXTINT_DECLARE(5, 'E', PE5),
+ AVR_EXTINT_DECLARE(6, 'E', PE6),
+ AVR_EXTINT_DECLARE(7, 'E', PE7),
+ },
+ .porta = {
+ .name = 'A', .r_port = PORTA, .r_ddr = DDRA, .r_pin = PINA,
+ },
+ .portb = {
+ .name = 'B', .r_port = PORTB, .r_ddr = DDRB, .r_pin = PINB,
+ .pcint = {
+ .enable = AVR_IO_REGBIT(PCICR, PCIE0),
+ .raised = AVR_IO_REGBIT(PCIFR, PCIF0),
+ .vector = PCINT0_vect,
+ },
+ .r_pcint = PCMSK0,
+ },
+ .portc = {
+ .name = 'C', .r_port = PORTC, .r_ddr = DDRC, .r_pin = PINC,
+ },
+ .portd = {
+ .name = 'D', .r_port = PORTD, .r_ddr = DDRD, .r_pin = PIND,
+ },
+ .porte = {
+ .name = 'E', .r_port = PORTE, .r_ddr = DDRE, .r_pin = PINE,
+ },
+ .portf = {
+ .name = 'F', .r_port = PORTF, .r_ddr = DDRF, .r_pin = PINF,
+ },
+ .portg = {
+ .name = 'G', .r_port = PORTG, .r_ddr = DDRG, .r_pin = PING,
+ },
+
+ .uart0 = {
+ .disabled = AVR_IO_REGBIT(PRR0,PRUSART0),
+ .name = '0',
+ .r_udr = UDR0,
+
+ .txen = AVR_IO_REGBIT(UCSR0B, TXEN0),
+ .rxen = AVR_IO_REGBIT(UCSR0B, RXEN0),
+ .ucsz = AVR_IO_REGBITS(UCSR0C, UCSZ00, 0x3), // 2 bits
+ .ucsz2 = AVR_IO_REGBIT(UCSR0B, UCSZ02), // 1 bits
+
+ .r_ucsra = UCSR0A,
+ .r_ucsrb = UCSR0B,
+ .r_ucsrc = UCSR0C,
+ .r_ubrrl = UBRR0L,
+ .r_ubrrh = UBRR0H,
+ .rxc = {
+ .enable = AVR_IO_REGBIT(UCSR0B, RXCIE0),
+ .raised = AVR_IO_REGBIT(UCSR0A, RXC0),
+ .vector = USART0_RX_vect,
+ },
+ .txc = {
+ .enable = AVR_IO_REGBIT(UCSR0B, TXCIE0),
+ .raised = AVR_IO_REGBIT(UCSR0A, TXC0),
+ .vector = USART0_TX_vect,
+ },
+ .udrc = {
+ .enable = AVR_IO_REGBIT(UCSR0B, UDRIE0),
+ .raised = AVR_IO_REGBIT(UCSR0A, UDRE0),
+ .vector = USART0_UDRE_vect,
+ },
+ },
+ .uart1 = {
+ .disabled = AVR_IO_REGBIT(PRR1,PRUSART1),
+ .name = '1',
+ .r_udr = UDR1,
+
+ .txen = AVR_IO_REGBIT(UCSR1B, TXEN1),
+ .rxen = AVR_IO_REGBIT(UCSR1B, RXEN1),
+ .ucsz = AVR_IO_REGBITS(UCSR1C, UCSZ10, 0x3), // 2 bits
+ .ucsz2 = AVR_IO_REGBIT(UCSR1B, UCSZ12), // 1 bits
+
+ .r_ucsra = UCSR1A,
+ .r_ucsrb = UCSR1B,
+ .r_ucsrc = UCSR1C,
+ .r_ubrrl = UBRR1L,
+ .r_ubrrh = UBRR1H,
+ .rxc = {
+ .enable = AVR_IO_REGBIT(UCSR1B, RXCIE1),
+ .raised = AVR_IO_REGBIT(UCSR1A, RXC1),
+ .vector = USART1_RX_vect,
+ },
+ .txc = {
+ .enable = AVR_IO_REGBIT(UCSR1B, TXCIE1),
+ .raised = AVR_IO_REGBIT(UCSR1A, TXC1),
+ .vector = USART1_TX_vect,
+ },
+ .udrc = {
+ .enable = AVR_IO_REGBIT(UCSR1B, UDRIE1),
+ .raised = AVR_IO_REGBIT(UCSR1A, UDRE1),
+ .vector = USART1_UDRE_vect,
+ },
+ },
+ .adc = {
+ .r_admux = ADMUX,
+ .mux = { AVR_IO_REGBIT(ADMUX, MUX0), AVR_IO_REGBIT(ADMUX, MUX1),
+ AVR_IO_REGBIT(ADMUX, MUX2), AVR_IO_REGBIT(ADMUX, MUX3),
+ AVR_IO_REGBIT(ADMUX, MUX4),},
+ .ref = { AVR_IO_REGBIT(ADMUX, REFS0), AVR_IO_REGBIT(ADMUX, REFS1)},
+ .ref_values = { [1] = ADC_VREF_AVCC, [2] = ADC_VREF_V110, [3] = ADC_VREF_V256 },
+
+ .adlar = AVR_IO_REGBIT(ADMUX, ADLAR),
+ .r_adcsra = ADCSRA,
+ .aden = AVR_IO_REGBIT(ADCSRA, ADEN),
+ .adsc = AVR_IO_REGBIT(ADCSRA, ADSC),
+ .adate = AVR_IO_REGBIT(ADCSRA, ADATE),
+ .adps = { AVR_IO_REGBIT(ADCSRA, ADPS0), AVR_IO_REGBIT(ADCSRA, ADPS1), AVR_IO_REGBIT(ADCSRA, ADPS2),},
+
+ .r_adch = ADCH,
+ .r_adcl = ADCL,
+
+ .r_adcsrb = ADCSRB,
+ .adts = { AVR_IO_REGBIT(ADCSRB, ADTS0), AVR_IO_REGBIT(ADCSRB, ADTS1), AVR_IO_REGBIT(ADCSRB, ADTS2),},
+
+ .muxmode = {
+ [0] = AVR_ADC_SINGLE(0), [1] = AVR_ADC_SINGLE(1),
+ [2] = AVR_ADC_SINGLE(2), [3] = AVR_ADC_SINGLE(3),
+ [4] = AVR_ADC_SINGLE(4), [5] = AVR_ADC_SINGLE(5),
+ [6] = AVR_ADC_SINGLE(6), [7] = AVR_ADC_SINGLE(7),
+
+ [ 8] = AVR_ADC_DIFF(0, 0, 10), [ 9] = AVR_ADC_DIFF(1, 0, 10),
+ [10] = AVR_ADC_DIFF(0, 0, 200), [11] = AVR_ADC_DIFF(1, 0, 200),
+ [12] = AVR_ADC_DIFF(2, 2, 10), [13] = AVR_ADC_DIFF(3, 2, 10),
+ [14] = AVR_ADC_DIFF(2, 2, 200), [15] = AVR_ADC_DIFF(3, 2, 200),
+
+ [16] = AVR_ADC_DIFF(0, 1, 1), [17] = AVR_ADC_DIFF(1, 1, 1),
+ [18] = AVR_ADC_DIFF(2, 1, 1), [19] = AVR_ADC_DIFF(3, 1, 1),
+ [20] = AVR_ADC_DIFF(4, 1, 1), [21] = AVR_ADC_DIFF(5, 1, 1),
+ [22] = AVR_ADC_DIFF(6, 1, 1), [23] = AVR_ADC_DIFF(7, 1, 1),
+
+ [24] = AVR_ADC_DIFF(0, 2, 1), [25] = AVR_ADC_DIFF(1, 2, 1),
+ [26] = AVR_ADC_DIFF(2, 2, 1), [27] = AVR_ADC_DIFF(3, 2, 1),
+ [28] = AVR_ADC_DIFF(4, 2, 1), [29] = AVR_ADC_DIFF(5, 2, 1),
+
+ [30] = AVR_ADC_REF(1100), // 1.1V
+ [31] = AVR_ADC_REF(0), // GND
+ },
+
+ .adc = {
+ .enable = AVR_IO_REGBIT(ADCSRA, ADIE),
+ .raised = AVR_IO_REGBIT(ADCSRA, ADIF),
+ .vector = ADC_vect,
+ },
+ },
+ .timer0 = {
+ .name = '0',
+ .wgm = { AVR_IO_REGBIT(TCCR0A, WGM00), AVR_IO_REGBIT(TCCR0A, WGM01), AVR_IO_REGBIT(TCCR0B, WGM02) },
+ .wgm_op = {
+ [0] = AVR_TIMER_WGM_NORMAL8(),
+ [2] = AVR_TIMER_WGM_CTC(),
+ [3] = AVR_TIMER_WGM_FASTPWM8(),
+ [7] = AVR_TIMER_WGM_OCPWM(),
+ },
+ .cs = { AVR_IO_REGBIT(TCCR0B, CS00), AVR_IO_REGBIT(TCCR0B, CS01), AVR_IO_REGBIT(TCCR0B, CS02) },
+ .cs_div = { 0, 0, 3 /* 8 */, 6 /* 64 */, 8 /* 256 */, 10 /* 1024 */ },
+
+ .r_tcnt = TCNT0,
+
+ .overflow = {
+ .enable = AVR_IO_REGBIT(TIMSK0, TOIE0),
+ .raised = AVR_IO_REGBIT(TIFR0, TOV0),
+ .vector = TIMER0_OVF_vect,
+ },
+ .comp = {
+ [AVR_TIMER_COMPA] = {
+ .r_ocr = OCR0A,
+ .com = AVR_IO_REGBITS(TCCR0A, COM0A0, 0x3),
+ .com_pin = AVR_IO_REGBIT(PORTB, PB7), // same as timer1C
+ .interrupt = {
+ .enable = AVR_IO_REGBIT(TIMSK0, OCIE0A),
+ .raised = AVR_IO_REGBIT(TIFR0, OCF0A),
+ .vector = TIMER0_COMPA_vect,
+ },
+ },
+ [AVR_TIMER_COMPB] = {
+ .r_ocr = OCR0B,
+ .com = AVR_IO_REGBITS(TCCR0A, COM0B0, 0x3),
+ .com_pin = AVR_IO_REGBIT(PORTG, PG5),
+ .interrupt = {
+ .enable = AVR_IO_REGBIT(TIMSK0, OCIE0B),
+ .raised = AVR_IO_REGBIT(TIFR0, OCF0B),
+ .vector = TIMER0_COMPB_vect,
+ },
+ },
+ },
+ },
+ .timer1 = {
+ .name = '1',
+ .disabled = AVR_IO_REGBIT(PRR0,PRTIM1),
+ .wgm = { AVR_IO_REGBIT(TCCR1A, WGM10), AVR_IO_REGBIT(TCCR1A, WGM11),
+ AVR_IO_REGBIT(TCCR1B, WGM12), AVR_IO_REGBIT(TCCR1B, WGM13) },
+ .wgm_op = {
+ [0] = AVR_TIMER_WGM_NORMAL16(),
+ // TODO: 1 PWM phase correct 8bit
+ // 2 PWM phase correct 9bit
+ // 3 PWM phase correct 10bit
+ [4] = AVR_TIMER_WGM_CTC(),
+ [5] = AVR_TIMER_WGM_FASTPWM8(),
+ [6] = AVR_TIMER_WGM_FASTPWM9(),
+ [7] = AVR_TIMER_WGM_FASTPWM10(),
+ // TODO: 8, 9 PWM phase and freq correct ICR & 10, 11
+ [12] = AVR_TIMER_WGM_ICCTC(),
+ [14] = AVR_TIMER_WGM_ICPWM(),
+ [15] = AVR_TIMER_WGM_OCPWM(),
+ },
+ .cs = { AVR_IO_REGBIT(TCCR1B, CS10), AVR_IO_REGBIT(TCCR1B, CS11), AVR_IO_REGBIT(TCCR1B, CS12) },
+ .cs_div = { 0, 0, 3 /* 8 */, 6 /* 64 */, 8 /* 256 */, 10 /* 1024 */ /* External clock T1 is not handled */},
+
+ .r_tcnt = TCNT1L,
+ .r_tcnth = TCNT1H,
+ .r_icr = ICR1L,
+ .r_icrh = ICR1H,
+
+ .ices = AVR_IO_REGBIT(TCCR1B, ICES1),
+ .icp = AVR_IO_REGBIT(PORTD, PD4),
+
+ .overflow = {
+ .enable = AVR_IO_REGBIT(TIMSK1, TOIE1),
+ .raised = AVR_IO_REGBIT(TIFR1, TOV1),
+ .vector = TIMER1_OVF_vect,
+ },
+ .icr = {
+ .enable = AVR_IO_REGBIT(TIMSK1, ICIE1),
+ .raised = AVR_IO_REGBIT(TIFR1, ICF1),
+ .vector = TIMER1_CAPT_vect,
+ },
+ .comp = {
+ [AVR_TIMER_COMPA] = {
+ .r_ocr = OCR1AL,
+ .r_ocrh = OCR1AH, // 16 bits timers have two bytes of it
+ .com = AVR_IO_REGBITS(TCCR1A, COM1A0, 0x3),
+ .com_pin = AVR_IO_REGBIT(PORTB, PB5),
+ .interrupt = {
+ .enable = AVR_IO_REGBIT(TIMSK1, OCIE1A),
+ .raised = AVR_IO_REGBIT(TIFR1, OCF1A),
+ .vector = TIMER1_COMPA_vect,
+ },
+ },
+ [AVR_TIMER_COMPB] = {
+ .r_ocr = OCR1BL,
+ .r_ocrh = OCR1BH,
+ .com = AVR_IO_REGBITS(TCCR1A, COM1B0, 0x3),
+ .com_pin = AVR_IO_REGBIT(PORTB, PB6),
+ .interrupt = {
+ .enable = AVR_IO_REGBIT(TIMSK1, OCIE1B),
+ .raised = AVR_IO_REGBIT(TIFR1, OCF1B),
+ .vector = TIMER1_COMPB_vect,
+ },
+ },
+ [AVR_TIMER_COMPC] = {
+ .r_ocr = OCR1CL,
+ .r_ocrh = OCR1CH,
+ .com = AVR_IO_REGBITS(TCCR1A, COM1C0, 0x3),
+ .com_pin = AVR_IO_REGBIT(PORTB, PB7), // same as timer0A
+ .interrupt = {
+ .enable = AVR_IO_REGBIT(TIMSK1, OCIE1C),
+ .raised = AVR_IO_REGBIT(TIFR1, OCF1C),
+ .vector = TIMER1_COMPC_vect,
+ },
+ },
+ },
+
+ },
+ .timer2 = {
+ .name = '2',
+ .wgm = { AVR_IO_REGBIT(TCCR2A, WGM20), AVR_IO_REGBIT(TCCR2A, WGM21), AVR_IO_REGBIT(TCCR2B, WGM22) },
+ .wgm_op = {
+ [0] = AVR_TIMER_WGM_NORMAL8(),
+ // TODO 1 pwm phase correct
+ [2] = AVR_TIMER_WGM_CTC(),
+ [3] = AVR_TIMER_WGM_FASTPWM8(),
+ [7] = AVR_TIMER_WGM_OCPWM(),
+ },
+ .cs = { AVR_IO_REGBIT(TCCR2B, CS20), AVR_IO_REGBIT(TCCR2B, CS21), AVR_IO_REGBIT(TCCR2B, CS22) },
+ .cs_div = { 0, 0, 3 /* 8 */, 5 /* 32 */, 6 /* 64 */, 7 /* 128 */, 8 /* 256 */, 10 /* 1024 */ },
+
+ .r_tcnt = TCNT2,
+ // asynchronous timer source bit.. if set, use 32khz frequency
+ .as2 = AVR_IO_REGBIT(ASSR, AS2),
+
+ .overflow = {
+ .enable = AVR_IO_REGBIT(TIMSK2, TOIE2),
+ .raised = AVR_IO_REGBIT(TIFR2, TOV2),
+ .vector = TIMER2_OVF_vect,
+ },
+ .comp = {
+ [AVR_TIMER_COMPA] = {
+ .r_ocr = OCR2A,
+ .com = AVR_IO_REGBITS(TCCR2A, COM2A0, 0x3),
+ .com_pin = AVR_IO_REGBIT(PORTB, PB4),
+ .interrupt = {
+ .enable = AVR_IO_REGBIT(TIMSK2, OCIE2A),
+ .raised = AVR_IO_REGBIT(TIFR2, OCF2A),
+ .vector = TIMER2_COMPA_vect,
+ },
+ },
+ // TIMER2_COMPB is only appeared in 1280
+ //[AVR_TIMER_COMPB] = {
+ // .r_ocr = OCR2B,
+ // .com = AVR_IO_REGBITS(TCCR2A, COM2B0, 0x3),
+ // .com_pin = AVR_IO_REGBIT(PORTH, PH6),
+ // .interrupt = {
+ // .enable = AVR_IO_REGBIT(TIMSK2, OCIE2B),
+ // .raised = AVR_IO_REGBIT(TIFR2, OCF2B),
+ // .vector = TIMER2_COMPB_vect,
+ // },
+ //},
+ },
+ },
+ .timer3 = {
+ .name = '3',
+ .wgm = { AVR_IO_REGBIT(TCCR3A, WGM30), AVR_IO_REGBIT(TCCR3A, WGM31),
+ AVR_IO_REGBIT(TCCR3B, WGM32), AVR_IO_REGBIT(TCCR3B, WGM33) },
+ .wgm_op = {
+ [0] = AVR_TIMER_WGM_NORMAL16(),
+ // TODO: 1 PWM phase correct 8bit
+ // 2 PWM phase correct 9bit
+ // 3 PWM phase correct 10bit
+ [4] = AVR_TIMER_WGM_CTC(),
+ [5] = AVR_TIMER_WGM_FASTPWM8(),
+ [6] = AVR_TIMER_WGM_FASTPWM9(),
+ [7] = AVR_TIMER_WGM_FASTPWM10(),
+ // TODO: 8 PWM phase and freq correct ICR
+ // 9 PWM phase and freq correct OCR
+ // 10
+ // 11
+ [12] = AVR_TIMER_WGM_ICCTC(),
+ [14] = AVR_TIMER_WGM_ICPWM(),
+ [15] = AVR_TIMER_WGM_OCPWM(),
+ },
+ .cs = { AVR_IO_REGBIT(TCCR3B, CS30), AVR_IO_REGBIT(TCCR3B, CS31), AVR_IO_REGBIT(TCCR3B, CS32) },
+ .cs_div = { 0, 0, 3 /* 8 */, 6 /* 64 */, 8 /* 256 */, 10 /* 1024 */ /* TODO: 2 External clocks */},
+
+ .r_tcnt = TCNT3L,
+ .r_icr = ICR3L,
+ .r_icrh = ICR3H,
+ .r_tcnth = TCNT3H,
+
+ .ices = AVR_IO_REGBIT(TCCR3B, ICES3),
+ .icp = AVR_IO_REGBIT(PORTE, PE7),
+
+ .overflow = {
+ .enable = AVR_IO_REGBIT(TIMSK3, TOIE3),
+ .raised = AVR_IO_REGBIT(TIFR3, TOV3),
+ .vector = TIMER3_OVF_vect,
+ },
+ .comp = {
+ [AVR_TIMER_COMPA] = {
+ .r_ocr = OCR3AL,
+ .r_ocrh = OCR3AH, // 16 bits timers have two bytes of it
+ .com = AVR_IO_REGBITS(TCCR3A, COM3A0, 0x3),
+ .com_pin = AVR_IO_REGBIT(PORTE, PE3),
+ .interrupt = {
+ .enable = AVR_IO_REGBIT(TIMSK3, OCIE3A),
+ .raised = AVR_IO_REGBIT(TIFR3, OCF3A),
+ .vector = TIMER3_COMPA_vect,
+ }
+ },
+ [AVR_TIMER_COMPB] = {
+ .r_ocr = OCR3BL,
+ .r_ocrh = OCR3BH,
+ .com = AVR_IO_REGBITS(TCCR3A, COM3B0, 0x3),
+ .com_pin = AVR_IO_REGBIT(PORTE, PE4),
+ .interrupt = {
+ .enable = AVR_IO_REGBIT(TIMSK3, OCIE3B),
+ .raised = AVR_IO_REGBIT(TIFR3, OCF3B),
+ .vector = TIMER3_COMPB_vect,
+ }
+ },
+ [AVR_TIMER_COMPC] = {
+ .r_ocr = OCR3CL,
+ .r_ocrh = OCR3CH,
+ .com = AVR_IO_REGBITS(TCCR3A, COM3C0, 0x3),
+ .com_pin = AVR_IO_REGBIT(PORTE, PE5),
+ .interrupt = {
+ .enable = AVR_IO_REGBIT(TIMSK3, OCIE3C),
+ .raised = AVR_IO_REGBIT(TIFR3, OCF3C),
+ .vector = TIMER3_COMPC_vect,
+ }
+ }
+ },
+ .icr = {
+ .enable = AVR_IO_REGBIT(TIMSK3, ICIE3),
+ .raised = AVR_IO_REGBIT(TIFR3, ICF3),
+ .vector = TIMER3_CAPT_vect,
+ },
+ },
+ .spi = {
+ .disabled = AVR_IO_REGBIT(PRR0,PRSPI),
+
+ .r_spdr = SPDR,
+ .r_spcr = SPCR,
+ .r_spsr = SPSR,
+
+ .spe = AVR_IO_REGBIT(SPCR, SPE),
+ .mstr = AVR_IO_REGBIT(SPCR, MSTR),
+
+ .spr = { AVR_IO_REGBIT(SPCR, SPR0), AVR_IO_REGBIT(SPCR, SPR1), AVR_IO_REGBIT(SPSR, SPI2X) },
+ .spi = {
+ .enable = AVR_IO_REGBIT(SPCR, SPIE),
+ .raised = AVR_IO_REGBIT(SPSR, SPIF),
+ .vector = SPI_STC_vect,
+ },
+ },
+
+ .twi = {
+
+ .r_twcr = TWCR,
+ .r_twsr = TWSR,
+ .r_twbr = TWBR,
+ .r_twdr = TWDR,
+ .r_twar = TWAR,
+ .r_twamr = TWAMR,
+
+ .twen = AVR_IO_REGBIT(TWCR, TWEN),
+ .twea = AVR_IO_REGBIT(TWCR, TWEA),
+ .twsta = AVR_IO_REGBIT(TWCR, TWSTA),
+ .twsto = AVR_IO_REGBIT(TWCR, TWSTO),
+ .twwc = AVR_IO_REGBIT(TWCR, TWWC),
+
+ .twsr = AVR_IO_REGBITS(TWSR, TWS3, 0x1f), // 5 bits
+ .twps = AVR_IO_REGBITS(TWSR, TWPS0, 0x3), // 2 bits
+
+ .twi = {
+ .enable = AVR_IO_REGBIT(TWCR, TWIE),
+ .raised = AVR_IO_REGBIT(TWCR, TWINT),
+ .vector = TWI_vect,
+ },
+ },
+
+};
+
+static avr_t * make()
+{
+ return &mcu_mega1281.core;
+}
+
+avr_kind_t mega1281 = {
+ .names = { "atmega1281" },
+ .make = make
+};
+
+void m1281_init(struct avr_t * avr)
+{
+ struct mcu_t * mcu = (struct mcu_t*)avr;
+
+ printf("%s init\n", avr->mmcu);
+
+ avr_eeprom_init(avr, &mcu->eeprom);
+ avr_flash_init(avr, &mcu->selfprog);
+ avr_extint_init(avr, &mcu->extint);
+ avr_watchdog_init(avr, &mcu->watchdog);
+ avr_ioport_init(avr, &mcu->porta);
+ avr_ioport_init(avr, &mcu->portb);
+ avr_ioport_init(avr, &mcu->portc);
+ avr_ioport_init(avr, &mcu->portd);
+ avr_ioport_init(avr, &mcu->porte);
+ avr_ioport_init(avr, &mcu->portf);
+ avr_ioport_init(avr, &mcu->portg);
+ avr_uart_init(avr, &mcu->uart0);
+ avr_uart_init(avr, &mcu->uart1);
+ avr_adc_init(avr, &mcu->adc);
+ avr_timer_init(avr, &mcu->timer0);
+ avr_timer_init(avr, &mcu->timer1);
+ avr_timer_init(avr, &mcu->timer2);
+ avr_timer_init(avr, &mcu->timer3);
+ avr_spi_init(avr, &mcu->spi);
+ avr_twi_init(avr, &mcu->twi);
+}
+
+void m1281_reset(struct avr_t * avr)
+{
+// struct mcu_t * mcu = (struct mcu_t*)avr;
+}
projects / simavr / blobdiff