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https://github.com/DCC-EX/CommandStation-EX.git
synced 2024-12-23 12:51:24 +01:00
rewrite freeMemory code
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cbd11e6099
commit
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2
DCC.h
2
DCC.h
@ -50,7 +50,7 @@ SKIPTARGET=0xFF // jump to target
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// Allocations with memory implications..!
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// Base system takes approx 900 bytes + 8 per loco. Turnouts, Sensors etc are dynamically created
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#ifdef ARDUINO_AVR_UNO
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const byte MAX_LOCOS=20;
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const byte MAX_LOCOS=30;
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#else
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const byte MAX_LOCOS=50;
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#endif
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@ -37,7 +37,7 @@ The configuration file for DCC++ EX Command Station
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//
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// DEFINE NUMBER OF MAIN TRACK REGISTER
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#define MAX_MAIN_REGISTERS 12
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#define MAX_MAIN_REGISTERS 22
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/////////////////////////////////////////////////////////////////////////////////////
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//
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42
freeMemory.cpp
Normal file
42
freeMemory.cpp
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@ -0,0 +1,42 @@
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/*
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* © 2020, Harald Barth
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*
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* This file is part of Asbelos DCC-EX
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*
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* This 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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* It 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 CommandStation. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "freeMemory.h"
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// thanks go to https://github.com/mpflaga/Arduino-MemoryFree
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#if defined(__arm__)
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extern "C" char* sbrk(int);
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#elif defined(__AVR__)
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extern char *__brkval;
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extern char *__malloc_heap_start;
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#else
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#error Unsupported board type
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#endif
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int freeMemory() {
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char top;
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#if defined(__arm__)
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return &top - reinterpret_cast<char*>(sbrk(0));
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#elif defined(__AVR__)
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return __brkval ? &top - __brkval : &top - __malloc_heap_start;
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#else
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#error bailed out alredy above
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#endif
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}
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37
freeMemory.h
37
freeMemory.h
@ -1,20 +1,23 @@
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/*
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* © 2020, Harald Barth
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*
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* This file is part of DCC-EX
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*
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* This 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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* It 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 CommandStation. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef freeMemory_h
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#define freeMemory_h
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// thanks go to https://github.com/mpflaga/Arduino-MemoryFree
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#ifdef __arm__
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// should use uinstd.h to define sbrk but Due causes a conflict
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extern "C" char* sbrk(int incr);
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#else // __ARM__
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extern char *__brkval;
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#endif // __arm__
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int freeMemory() {
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char top;
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#ifdef __arm__
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return &top - reinterpret_cast<char*>(sbrk(0));
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#else // __arm__
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return __brkval ? &top - __brkval : &top - __malloc_heap_start;
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#endif // __arm__
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}
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int freeMemory();
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#endif
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