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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program 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.
*
* This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#ifdef __AVR__
#include "../../inc/MarlinConfig.h"
#include "HAL.h"
#ifdef USBCON
DefaultSerial MSerial(false, Serial);
#ifdef BLUETOOTH
BTSerial btSerial(false, bluetoothSerial);
#endif
#endif
// ------------------------
// Public Variables
// ------------------------
//uint8_t MCUSR;
// ------------------------
// Public functions
// ------------------------
void HAL_init() {
// Init Servo Pins
#define INIT_SERVO(N) OUT_WRITE(SERVO##N##_PIN, LOW)
#if HAS_SERVO_0
INIT_SERVO(0);
#endif
#if HAS_SERVO_1
INIT_SERVO(1);
#endif
#if HAS_SERVO_2
INIT_SERVO(2);
#endif
#if HAS_SERVO_3
INIT_SERVO(3);
#endif
}
#if ENABLED(SDSUPPORT)
#include "../../sd/SdFatUtil.h"
int freeMemory() { return SdFatUtil::FreeRam(); }
#else // !SDSUPPORT
extern "C" {
extern char __bss_end;
extern char __heap_start;
extern void* __brkval;
int freeMemory() {
int free_memory;
if ((int)__brkval == 0)
free_memory = ((int)&free_memory) - ((int)&__bss_end);
else
free_memory = ((int)&free_memory) - ((int)__brkval);
return free_memory;
}
}
#endif // !SDSUPPORT
#endif // __AVR__
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