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206 lines
6.4 KiB
206 lines
6.4 KiB
/**
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* Marlin 3D Printer Firmware
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*
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* Copyright (c) 2020 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 <https://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();
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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 "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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// i2c uses 8-bit shifted address
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#define I2C_ADDRESS(A) uint8_t((A) << 1)
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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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#define _MSERIAL(X) MSerial##X
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#define MSERIAL(X) _MSERIAL(X)
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#define MSerial0 MSerial
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#if SERIAL_PORT == -1
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#define MYSERIAL0 UsbSerial
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#elif WITHIN(SERIAL_PORT, 0, 3)
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#define MYSERIAL0 MSERIAL(SERIAL_PORT)
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#else
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#error "SERIAL_PORT must be from -1 to 3. Please update your configuration."
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#endif
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#ifdef SERIAL_PORT_2
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#if SERIAL_PORT_2 == -1
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#define MYSERIAL1 UsbSerial
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#elif WITHIN(SERIAL_PORT_2, 0, 3)
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#define MYSERIAL1 MSERIAL(SERIAL_PORT_2)
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#else
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#error "SERIAL_PORT_2 must be from -1 to 3. Please update your configuration."
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#endif
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#endif
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#ifdef LCD_SERIAL_PORT
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#if LCD_SERIAL_PORT == -1
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#define LCD_SERIAL UsbSerial
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#elif WITHIN(LCD_SERIAL_PORT, 0, 3)
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#define LCD_SERIAL MSERIAL(LCD_SERIAL_PORT)
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#else
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#error "LCD_SERIAL_PORT must be from -1 to 3. Please update your configuration."
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#endif
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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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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wunused-function"
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int freeMemory();
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#pragma GCC diagnostic pop
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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 (2) // 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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#define HAL_ADC_VREF 3.3 // ADC voltage reference
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#define HAL_ADC_RESOLUTION 12 // 15 bit maximum, raw temperature is stored as int16_t
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#define HAL_ADC_FILTERED // Disable oversampling done in Marlin as ADC values already filtered in HAL
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using FilteredADC = LPC176x::ADC<ADC_LOWPASS_K_VALUE, ADC_MEDIAN_FILTER_SIZE>;
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extern uint32_t HAL_adc_reading;
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[[gnu::always_inline]] inline void HAL_start_adc(const pin_t pin) {
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HAL_adc_reading = FilteredADC::read(pin) >> (16 - HAL_ADC_RESOLUTION); // returns 16bit value, reduce to required bits
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}
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[[gnu::always_inline]] inline uint16_t HAL_read_adc() {
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return HAL_adc_reading;
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}
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#define HAL_adc_init()
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#define HAL_ANALOG_SELECT(pin) FilteredADC::enable_channel(pin)
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#define HAL_START_ADC(pin) HAL_start_adc(pin)
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#define HAL_READ_ADC() HAL_read_adc()
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#define HAL_ADC_READY() (true)
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// Test whether the pin is valid
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constexpr bool VALID_PIN(const pin_t pin) {
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return LPC176x::pin_is_valid(pin);
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}
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// Get the analog index for a digital pin
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constexpr int8_t DIGITAL_PIN_TO_ANALOG_PIN(const pin_t pin) {
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return (LPC176x::pin_is_valid(pin) && LPC176x::pin_has_adc(pin)) ? pin : -1;
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}
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// Return the index of a pin number
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constexpr int16_t GET_PIN_MAP_INDEX(const pin_t pin) {
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return LPC176x::pin_index(pin);
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}
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// Get the pin number at the given index
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constexpr pin_t GET_PIN_MAP_PIN(const int16_t index) {
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return LPC176x::pin_index(index);
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}
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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();
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#define PLATFORM_M997_SUPPORT
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void flashFirmware(const int16_t);
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#define HAL_CAN_SET_PWM_FREQ // This HAL supports PWM Frequency adjustment
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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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// Reset source
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void HAL_clear_reset_source(void);
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uint8_t HAL_get_reset_source(void);
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// Add strcmp_P if missing
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#ifndef strcmp_P
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#define strcmp_P(a, b) strcmp((a), (b))
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#endif
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