46b2773e13
* fixed some include paths * LPC1768: Fix Serial API Add missing serial methods used if TX_BUFFER_SIZE is set Change return value of HalSerial:read to match Arduino API * LPC1768: add filters to ADC This is to try and compensate for hardware issue and oversensitivity to noise * LPC1768: remove the polling section of delayMicroseconds * LPC1768: lock usb mass storage device while device accesses it. Currently only applicable to persistent store, The device always has priority and will unmount the sd card from the host, Windows then tries to automount again so it can look like the explorer window freezes. Linux Mint, by default, just closes the Nemo window. * Add timeout to make sure if Serial never connects that Marlin still boots * Remove unneeded ifdef CPU_32_BIT In general the need for ifdef CPU_32_BIT blocks means that something is missing from the HAL API or a Platform, in this case HAL_TICKS_PER_US was missing from the AVR Platform * LPC1768: relocate RE-ARM debug_extra_script.py
161 lines
4.8 KiB
C
161 lines
4.8 KiB
C
/* **************************************************************************
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Marlin 3D Printer Firmware
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Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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****************************************************************************/
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/**
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* Description: HAL for AVR
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*
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* For __AVR__
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*/
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#ifndef _HAL_AVR_H
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#define _HAL_AVR_H
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// --------------------------------------------------------------------------
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// Includes
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// --------------------------------------------------------------------------
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#include <stdint.h>
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#include "Arduino.h"
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#include <util/delay.h>
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#include <avr/eeprom.h>
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#include <avr/pgmspace.h>
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#include <avr/interrupt.h>
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#include <avr/io.h>
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#include "fastio_AVR.h"
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#include "watchdog_AVR.h"
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#include "math_AVR.h"
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// --------------------------------------------------------------------------
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// Defines
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// --------------------------------------------------------------------------
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//#define analogInputToDigitalPin(IO) IO
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#ifndef CRITICAL_SECTION_START
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#define CRITICAL_SECTION_START unsigned char _sreg = SREG; cli();
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#define CRITICAL_SECTION_END SREG = _sreg;
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#endif
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// On AVR this is in math.h?
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//#define square(x) ((x)*(x))
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// --------------------------------------------------------------------------
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// Types
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// --------------------------------------------------------------------------
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#define HAL_TIMER_TYPE uint16_t
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#define HAL_TIMER_TYPE_MAX 0xFFFF
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#define HAL_SERVO_LIB Servo
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// --------------------------------------------------------------------------
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// Public Variables
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// --------------------------------------------------------------------------
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//extern uint8_t MCUSR;
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// --------------------------------------------------------------------------
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// Public functions
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// --------------------------------------------------------------------------
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//void cli(void);
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//void _delay_ms(const int delay);
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inline void HAL_clear_reset_source(void) { MCUSR = 0; }
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inline uint8_t HAL_get_reset_source(void) { return MCUSR; }
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extern "C" {
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int freeMemory(void);
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}
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// eeprom
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//void eeprom_write_byte(unsigned char *pos, unsigned char value);
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//unsigned char eeprom_read_byte(unsigned char *pos);
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// timers
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#define STEP_TIMER_NUM OCR1A
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#define TEMP_TIMER_NUM 0
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#define TEMP_TIMER_FREQUENCY (F_CPU / 64.0 / 256.0)
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#define HAL_TIMER_RATE ((F_CPU) / 8.0)
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#define HAL_STEPPER_TIMER_RATE HAL_TIMER_RATE
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#define STEPPER_TIMER_PRESCALE INT0_PRESCALER
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#define HAL_TICKS_PER_US (((F_CPU) / 8) / 1000000) // Can not be of type double
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#define ENABLE_STEPPER_DRIVER_INTERRUPT() SBI(TIMSK1, OCIE1A)
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#define DISABLE_STEPPER_DRIVER_INTERRUPT() CBI(TIMSK1, OCIE1A)
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#define ENABLE_TEMPERATURE_INTERRUPT() SBI(TIMSK0, OCIE0B)
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#define DISABLE_TEMPERATURE_INTERRUPT() CBI(TIMSK0, OCIE0B)
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//void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency);
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#define HAL_timer_start(timer_num,frequency)
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//void HAL_timer_set_count(const uint8_t timer_num, const uint16_t count);
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#define HAL_timer_set_count(timer, count) timer = (count)
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#define HAL_timer_get_current_count(timer) timer
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//void HAL_timer_isr_prologue(const uint8_t timer_num);
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#define HAL_timer_isr_prologue(timer_num)
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#define HAL_STEP_TIMER_ISR ISR(TIMER1_COMPA_vect)
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#define HAL_TEMP_TIMER_ISR ISR(TIMER0_COMPB_vect)
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#define HAL_ENABLE_ISRs() do { cli(); if (thermalManager.in_temp_isr) DISABLE_TEMPERATURE_INTERRUPT(); else ENABLE_TEMPERATURE_INTERRUPT(); ENABLE_STEPPER_DRIVER_INTERRUPT(); } while(0)
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// ADC
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#ifdef DIDR2
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#define HAL_ANALOG_SELECT(pin) do{ if (pin < 8) SBI(DIDR0, pin); else SBI(DIDR2, pin - 8); }while(0)
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#else
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#define HAL_ANALOG_SELECT(pin) do{ SBI(DIDR0, pin); }while(0)
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#endif
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inline void HAL_adc_init(void) {
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ADCSRA = _BV(ADEN) | _BV(ADSC) | _BV(ADIF) | 0x07;
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DIDR0 = 0;
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#ifdef DIDR2
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DIDR2 = 0;
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#endif
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}
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#define SET_ADMUX_ADCSRA(pin) ADMUX = _BV(REFS0) | (pin & 0x07); SBI(ADCSRA, ADSC)
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#ifdef MUX5
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#define HAL_START_ADC(pin) if (pin > 7) ADCSRB = _BV(MUX5); else ADCSRB = 0; SET_ADMUX_ADCSRA(pin)
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#else
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#define HAL_START_ADC(pin) ADCSRB = 0; SET_ADMUX_ADCSRA(pin)
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#endif
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#define HAL_READ_ADC ADC
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// --------------------------------------------------------------------------
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//
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// --------------------------------------------------------------------------
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#endif // _HAL_AVR_H
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