178 lines
5.5 KiB
C
178 lines
5.5 KiB
C
/**
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* Marlin 3D Printer Firmware
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*
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* Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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* Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
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* Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
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*
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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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*
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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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*
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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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#pragma once
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/**
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* HAL_LPC1768/HAL.h
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* Hardware Abstraction Layer for NXP LPC1768
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*/
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#define CPU_32_BIT
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void HAL_init(void);
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#include <stdint.h>
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#include <stdarg.h>
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#include <algorithm>
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extern "C" volatile uint32_t _millis;
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#include "../shared/Marduino.h"
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#include "../shared/math_32bit.h"
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#include "../shared/HAL_SPI.h"
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#include "fastio.h"
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#include "watchdog.h"
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#include "HAL_timers.h"
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#include "MarlinSerial.h"
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#include <adc.h>
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#include <pinmapping.h>
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#include <CDCSerial.h>
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//
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// Default graphical display delays
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//
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#ifndef ST7920_DELAY_1
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#define ST7920_DELAY_1 DELAY_NS(600)
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#endif
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#ifndef ST7920_DELAY_2
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#define ST7920_DELAY_2 DELAY_NS(750)
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#endif
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#ifndef ST7920_DELAY_3
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#define ST7920_DELAY_3 DELAY_NS(750)
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#endif
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#if !WITHIN(SERIAL_PORT, -1, 3)
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#error "SERIAL_PORT must be from -1 to 3"
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#endif
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#if SERIAL_PORT == -1
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#define MYSERIAL0 UsbSerial
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#elif SERIAL_PORT == 0
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#define MYSERIAL0 MSerial
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#elif SERIAL_PORT == 1
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#define MYSERIAL0 MSerial1
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#elif SERIAL_PORT == 2
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#define MYSERIAL0 MSerial2
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#elif SERIAL_PORT == 3
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#define MYSERIAL0 MSerial3
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#endif
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#ifdef SERIAL_PORT_2
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#if !WITHIN(SERIAL_PORT_2, -1, 3)
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#error "SERIAL_PORT_2 must be from -1 to 3"
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#elif SERIAL_PORT_2 == SERIAL_PORT
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#error "SERIAL_PORT_2 must be different than SERIAL_PORT"
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#endif
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#define NUM_SERIAL 2
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#if SERIAL_PORT_2 == -1
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#define MYSERIAL1 UsbSerial
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#elif SERIAL_PORT_2 == 0
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#define MYSERIAL1 MSerial
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#elif SERIAL_PORT_2 == 1
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#define MYSERIAL1 MSerial1
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#elif SERIAL_PORT_2 == 2
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#define MYSERIAL1 MSerial2
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#elif SERIAL_PORT_2 == 3
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#define MYSERIAL1 MSerial3
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#endif
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#else
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#define NUM_SERIAL 1
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#endif
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//
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// Interrupts
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//
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#define CRITICAL_SECTION_START uint32_t primask = __get_PRIMASK(); __disable_irq()
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#define CRITICAL_SECTION_END if (!primask) __enable_irq()
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#define ISRS_ENABLED() (!__get_PRIMASK())
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#define ENABLE_ISRS() __enable_irq()
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#define DISABLE_ISRS() __disable_irq()
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//
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// Utility functions
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//
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int freeMemory(void);
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//
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// SPI: Extended functions taking a channel number (Hardware SPI only)
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//
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// Write single byte to specified SPI channel
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void spiSend(uint32_t chan, byte b);
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// Write buffer to specified SPI channel
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void spiSend(uint32_t chan, const uint8_t* buf, size_t n);
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// Read single byte from specified SPI channel
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uint8_t spiRec(uint32_t chan);
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//
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// ADC API
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//
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#define ADC_MEDIAN_FILTER_SIZE (23) // Higher values increase step delay (phase shift),
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// (ADC_MEDIAN_FILTER_SIZE + 1) / 2 sample step delay (12 samples @ 500Hz: 24ms phase shift)
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// Memory usage per ADC channel (bytes): (6 * ADC_MEDIAN_FILTER_SIZE) + 16
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// 8 * ((6 * 23) + 16 ) = 1232 Bytes for 8 channels
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#define ADC_LOWPASS_K_VALUE (6) // Higher values increase rise time
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// Rise time sample delays for 100% signal convergence on full range step
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// (1 : 13, 2 : 32, 3 : 67, 4 : 139, 5 : 281, 6 : 565, 7 : 1135, 8 : 2273)
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// K = 6, 565 samples, 500Hz sample rate, 1.13s convergence on full range step
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// Memory usage per ADC channel (bytes): 4 (32 Bytes for 8 channels)
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using FilteredADC = LPC176x::ADC<ADC_LOWPASS_K_VALUE, ADC_MEDIAN_FILTER_SIZE>;
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#define HAL_adc_init() FilteredADC::init()
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#define HAL_ANALOG_SELECT(pin) FilteredADC::enable_channel(pin)
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#define HAL_START_ADC(pin) FilteredADC::start_conversion(pin)
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#define HAL_READ_ADC() FilteredADC::get_result()
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#define HAL_ADC_READY() FilteredADC::finished_conversion()
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// A grace period to allow ADC readings to stabilize, preventing false alarms
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#define THERMAL_PROTECTION_GRACE_PERIOD 1000
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// Parse a G-code word into a pin index
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int16_t PARSED_PIN_INDEX(const char code, const int16_t dval);
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// P0.6 thru P0.9 are for the onboard SD card
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#define HAL_SENSITIVE_PINS P0_06, P0_07, P0_08, P0_09
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#define HAL_IDLETASK 1
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void HAL_idletask(void);
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#define PLATFORM_M997_SUPPORT
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void flashFirmware(int16_t value);
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/**
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* set_pwm_frequency
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* Set the frequency of the timer corresponding to the provided pin
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* All Hardware PWM pins run at the same frequency and all
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* Software PWM pins run at the same frequency
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*/
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void set_pwm_frequency(const pin_t pin, int f_desired);
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/**
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* set_pwm_duty
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* Set the PWM duty cycle of the provided pin to the provided value
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* Optionally allows inverting the duty cycle [default = false]
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* Optionally allows changing the maximum size of the provided value to enable finer PWM duty control [default = 255]
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*/
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void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size=255, const bool invert=false);
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