81 lines
2.9 KiB
C
81 lines
2.9 KiB
C
/**
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* Marlin 3D Printer Firmware
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* Copyright (C) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
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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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* servo.h - Interrupt driven Servo library for Arduino using 16 bit timers- Version 2
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* Copyright (c) 2009 Michael Margolis. All right reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* Based on "servo.h - Interrupt driven Servo library for Arduino using 16 bit timers -
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* Version 2 Copyright (c) 2009 Michael Margolis. All right reserved.
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*
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* The only modification was to update/delete macros to match the LPC176x.
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*
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*/
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#include <stdint.h>
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// Macros
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//values in microseconds
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#define MIN_PULSE_WIDTH 544 // the shortest pulse sent to a servo
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#define MAX_PULSE_WIDTH 2400 // the longest pulse sent to a servo
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#define DEFAULT_PULSE_WIDTH 1500 // default pulse width when servo is attached
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#define REFRESH_INTERVAL 20000 // minimum time to refresh servos in microseconds
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#define MAX_SERVOS 4
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#define INVALID_SERVO 255 // flag indicating an invalid servo index
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// Types
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typedef struct {
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uint8_t nbr : 8 ; // a pin number from 0 to 254 (255 signals invalid pin)
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uint8_t isActive : 1 ; // true if this channel is enabled, pin not pulsed if false
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} ServoPin_t;
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typedef struct {
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ServoPin_t Pin;
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unsigned int pulse_width; // pulse width in microseconds
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} ServoInfo_t;
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// Global variables
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extern uint8_t ServoCount;
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extern ServoInfo_t servo_info[MAX_SERVOS];
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