From 6950a4a6c8e61c68f53854b1c5cd4cd511f2bad7 Mon Sep 17 00:00:00 2001 From: Delio Brignoli Date: Mon, 11 Sep 2017 09:04:07 +0200 Subject: [PATCH] Add atmega32u4 core by Michel Pollet --- simavr/cores/sim_mega32u4.c | 495 ++++++++++++++++++++++++++++++++++++ 1 file changed, 495 insertions(+) create mode 100644 simavr/cores/sim_mega32u4.c diff --git a/simavr/cores/sim_mega32u4.c b/simavr/cores/sim_mega32u4.c new file mode 100644 index 0000000..89a047a --- /dev/null +++ b/simavr/cores/sim_mega32u4.c @@ -0,0 +1,495 @@ +/* + sim_mega32u4.c + + Copyright 2008, 2009 Michel Pollet + + 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 . + */ + +#define SIM_VECTOR_SIZE 4 +#define SIM_MMCU "atmega32u4" +#define SIM_CORENAME mcu_mega32u4 +#define USBRF 5 // missing in avr/iom32u4.h + +#define PD7 7 +#define PD6 6 +#define PD5 5 +#define PD4 4 +#define PD3 3 +#define PD2 2 +#define PD1 1 +#define PD0 0 + +#define PE6 6 + +#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" +#include "avr_acomp.h" +#include "avr_usb.h" + +void m32u4_init(struct avr_t * avr); +void m32u4_reset(struct avr_t * avr); + +#define _AVR_IO_H_ +#define __ASSEMBLER__ +#ifndef __AVR_ATmega32u4__ +#define __AVR_ATmega32u4__ +#endif +#include "avr/iom32u4.h" + +/* + * ATmega32u4 definitions + */ +const 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 portb, portc, portd, porte, portf; + avr_uart_t uart1; + avr_acomp_t acomp; + avr_adc_t adc; + avr_timer_t timer0, timer1, timer3; + avr_spi_t spi; + avr_twi_t twi; + avr_usb_t usb; +} mcu_mega32u4 = { + .core = { + .mmcu = "atmega32u4", + DEFAULT_CORE(4), + + .init = m32u4_init, + .reset = m32u4_reset, + + .rampz = RAMPZ, + }, + AVR_EEPROM_DECLARE(EE_READY_vect), + AVR_SELFPROG_DECLARE(SPMCSR, SPMEN, SPM_READY_vect), + AVR_WATCHDOG_DECLARE(WDTCSR, WDT_vect), + .extint = { + AVR_EXTINT_MEGA_DECLARE(0, 'D', PD0, A), + AVR_EXTINT_MEGA_DECLARE(1, 'D', PD1, A), + AVR_EXTINT_MEGA_DECLARE(2, 'D', PD2, A), + AVR_EXTINT_MEGA_DECLARE(3, 'D', PD3, A), + AVR_EXTINT_MEGA_DECLARE(6, 'E', PE6, B), + }, + .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, + }, + AVR_IOPORT_DECLARE(c, 'C', C), + AVR_IOPORT_DECLARE(d, 'D', D), + AVR_IOPORT_DECLARE(e, 'E', E), + AVR_IOPORT_DECLARE(f, 'F', F), + + AVR_UARTX_DECLARE(1, PRR1, PRUSART1), + + .acomp = { + .mux_inputs = 8, + .mux = { AVR_IO_REGBIT(ADMUX, MUX0), AVR_IO_REGBIT(ADMUX, MUX1), + AVR_IO_REGBIT(ADMUX, MUX2) }, + .pradc = AVR_IO_REGBIT(PRR0, PRADC), + .aden = AVR_IO_REGBIT(ADCSRA, ADEN), + .acme = AVR_IO_REGBIT(ADCSRB, ACME), + + .r_acsr = ACSR, + .acis = { AVR_IO_REGBIT(ACSR, ACIS0), AVR_IO_REGBIT(ACSR, ACIS1) }, + .acic = AVR_IO_REGBIT(ACSR, ACIC), + .aco = AVR_IO_REGBIT(ACSR, ACO), + .acbg = AVR_IO_REGBIT(ACSR, ACBG), + .disabled = AVR_IO_REGBIT(ACSR, ACD), + + .timer_name = '1', + + .ac = { + .enable = AVR_IO_REGBIT(ACSR, ACIE), + .raised = AVR_IO_REGBIT(ACSR, ACI), + .vector = ANALOG_COMP_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),AVR_IO_REGBIT(ADCSRB, MUX5),}, + .ref = { AVR_IO_REGBIT(ADMUX, REFS0), AVR_IO_REGBIT(ADMUX, REFS1)}, + .ref_values = { [0] = ADC_VREF_AREF, [1] = ADC_VREF_AVCC, + //[2] = Reserved: any constant to mark this? + [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), AVR_IO_REGBIT(ADCSRB, ADTS3),}, + .adts_op = { + [0] = avr_adts_free_running, + [1] = avr_adts_analog_comparator_0, + [2] = avr_adts_external_interrupt_0, + [3] = avr_adts_timer_0_compare_match_a, + [4] = avr_adts_timer_0_overflow, + [5] = avr_adts_timer_1_compare_match_b, + [6] = avr_adts_timer_1_overflow, + [7] = avr_adts_timer_1_capture_event, + // follows 4 sources for unsupported fast timer4 + }, + + .muxmode = { + [0] = AVR_ADC_SINGLE(0), [1] = AVR_ADC_SINGLE(1), + + // Not available: 2 items + [2] = AVR_ADC_DIFF(0, 0, 1), [3] = AVR_ADC_DIFF(0, 0, 1), + + [4] = AVR_ADC_SINGLE(4), [5] = AVR_ADC_SINGLE(5), + [6] = AVR_ADC_SINGLE(6), [7] = AVR_ADC_SINGLE(7), + + // Not available: 1 item + [ 8] = AVR_ADC_DIFF(0, 0, 10), + + [ 9] = AVR_ADC_DIFF(1, 0, 10), + + // Not available: 1 item + [10] = AVR_ADC_DIFF(0, 0, 200), + + [11] = AVR_ADC_DIFF(1, 0, 200), + + // Not available: 4 items + [12] = AVR_ADC_DIFF(0, 0, 1), [13] = AVR_ADC_DIFF(0, 0, 1), + [14] = AVR_ADC_DIFF(0, 0, 1), [15] = AVR_ADC_DIFF(0, 0, 1), + + [16] = AVR_ADC_DIFF(0, 1, 1), + + // Not available: 3 items + [17] = AVR_ADC_DIFF(0, 0, 1), + [18] = AVR_ADC_DIFF(0, 0, 1), + [19] = AVR_ADC_DIFF(0, 0, 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), + + // Not available: 6 items + [24] = AVR_ADC_DIFF(0, 0, 1), [25] = AVR_ADC_DIFF(0, 0, 1), + [26] = AVR_ADC_DIFF(0, 0, 1), [27] = AVR_ADC_DIFF(0, 0, 1), + [28] = AVR_ADC_DIFF(0, 0, 1), [29] = AVR_ADC_DIFF(0, 0, 1), + + [30] = AVR_ADC_REF(1100), // 1.1V + [31] = AVR_ADC_REF(0), // GND + + [32] = AVR_ADC_SINGLE( 8), [33] = AVR_ADC_SINGLE( 9), + [34] = AVR_ADC_SINGLE(10), [35] = AVR_ADC_SINGLE(11), + [36] = AVR_ADC_SINGLE(12), [37] = AVR_ADC_SINGLE(13), + + [38] = AVR_ADC_DIFF(1, 0, 40), + [39] = AVR_ADC_TEMP(), + + [40] = AVR_ADC_DIFF(4, 0, 10), [41] = AVR_ADC_DIFF(5, 0, 10), + [42] = AVR_ADC_DIFF(6, 0, 10), [43] = AVR_ADC_DIFF(7, 0, 10), + [44] = AVR_ADC_DIFF(4, 1, 10), [45] = AVR_ADC_DIFF(5, 1, 10), + [46] = AVR_ADC_DIFF(6, 1, 10), [47] = AVR_ADC_DIFF(7, 1, 10), + + [48] = AVR_ADC_DIFF(4, 0, 40), [49] = AVR_ADC_DIFF(5, 0, 40), + [50] = AVR_ADC_DIFF(6, 0, 40), [51] = AVR_ADC_DIFF(7, 0, 40), + [52] = AVR_ADC_DIFF(4, 1, 40), [53] = AVR_ADC_DIFF(5, 1, 40), + [54] = AVR_ADC_DIFF(6, 1, 40), [55] = AVR_ADC_DIFF(7, 1, 40), + + [56] = AVR_ADC_DIFF(4, 0, 200), [57] = AVR_ADC_DIFF(5, 0, 200), + [58] = AVR_ADC_DIFF(6, 0, 200), [59] = AVR_ADC_DIFF(7, 0, 200), + [60] = AVR_ADC_DIFF(4, 1, 200), [61] = AVR_ADC_DIFF(5, 1, 200), + [62] = AVR_ADC_DIFF(6, 1, 200), [63] = AVR_ADC_DIFF(7, 1, 200), + }, + + .adc = { + .enable = AVR_IO_REGBIT(ADCSRA, ADIE), + .raised = AVR_IO_REGBIT(ADCSRA, ADIF), + .vector = ADC_vect, + }, + }, + + .timer0 = { + .name = '0', + .disabled = AVR_IO_REGBIT(PRR0, PRTIM0), + .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, 7), + .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(PORTD, 0), + .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(), + [1] = AVR_TIMER_WGM_FCPWM8(), + [2] = AVR_TIMER_WGM_FCPWM9(), + [3] = AVR_TIMER_WGM_FCPWM10(), + [4] = AVR_TIMER_WGM_CTC(), + [5] = AVR_TIMER_WGM_FASTPWM8(), + [6] = AVR_TIMER_WGM_FASTPWM9(), + [7] = AVR_TIMER_WGM_FASTPWM10(), + [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, 4), + + .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, 5), + .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, 6), + .interrupt = { + .enable = AVR_IO_REGBIT(TIMSK1, OCIE1B), + .raised = AVR_IO_REGBIT(TIFR1, OCF1B), + .vector = TIMER1_COMPB_vect, + } + } + } + }, + .timer3 = { + .name = '3', + .disabled = AVR_IO_REGBIT(PRR1, PRTIM3), + .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(), + [1] = AVR_TIMER_WGM_FCPWM8(), + [2] = AVR_TIMER_WGM_FCPWM9(), + [3] = AVR_TIMER_WGM_FCPWM10(), + [4] = AVR_TIMER_WGM_CTC(), + [5] = AVR_TIMER_WGM_FASTPWM8(), + [6] = AVR_TIMER_WGM_FASTPWM9(), + [7] = AVR_TIMER_WGM_FASTPWM10(), + [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 */ /* External clock T1 is not handled */}, + + .r_tcnt = TCNT3L, + .r_tcnth = TCNT3H, + .r_icr = ICR3L, + .r_icrh = ICR3H, + + .ices = AVR_IO_REGBIT(TCCR3B, ICES3), + .icp = AVR_IO_REGBIT(PORTC, 7), + + .overflow = { + .enable = AVR_IO_REGBIT(TIMSK3, TOIE3), + .raised = AVR_IO_REGBIT(TIFR3, TOV3), + .vector = TIMER3_OVF_vect, + }, + .icr = { + .enable = AVR_IO_REGBIT(TIMSK3, ICIE3), + .raised = AVR_IO_REGBIT(TIFR3, ICF3), + .vector = TIMER3_CAPT_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(PORTC, 6), + .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(PORTC, 6), // WTF nothing in doc about this + .interrupt = { + .enable = AVR_IO_REGBIT(TIMSK3, OCIE3B), + .raised = AVR_IO_REGBIT(TIFR3, OCF3B), + .vector = TIMER3_COMPB_vect, + } + } + } + }, + // .timer4 = { /* TODO 10 bits realtime timer */ }, + AVR_SPI_DECLARE(PRR0, PRSPI), + .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), + .raise_sticky = 1, + .vector = TWI_vect, + }, + }, + .usb = { + .name='1', + .disabled = AVR_IO_REGBIT(PRR1, PRUSB), // bit in the PRR + + .usbrf = AVR_IO_REGBIT(MCUSR, USBRF), // bit in the MCUSR + + .r_usbcon = USBCON, + .r_pllcsr = PLLCSR, + + .usb_com_vect = USB_COM_vect, + .usb_gen_vect = USB_GEN_vect, + }, +}; + + +static avr_t * make() +{ + return avr_core_allocate(&mcu_mega32u4.core, sizeof(struct mcu_t)); +} + +avr_kind_t mega32u4 = { + .names = { "atmega32u4", }, + .make = make +}; + +void m32u4_init(struct avr_t * avr) +{ + struct mcu_t * mcu = (struct mcu_t*)avr; + + 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->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_uart_init(avr, &mcu->uart1); + avr_acomp_init(avr, &mcu->acomp); + avr_adc_init(avr, &mcu->adc); + avr_timer_init(avr, &mcu->timer0); + avr_timer_init(avr, &mcu->timer1); + avr_timer_init(avr, &mcu->timer3); + avr_spi_init(avr, &mcu->spi); + avr_twi_init(avr, &mcu->twi); + avr_usb_init(avr, &mcu->usb); +} + +void m32u4_reset(struct avr_t * avr) +{ +// struct mcu_t * mcu = (struct mcu_t*)avr; +} -- 2.39.5