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Merge pull request #1167 from thinkyhead/sd_freemem

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Use SdFatUtil::FreeRam() for freeMemory() if there
This commit is contained in:
Bo Herrmannsen 2014-12-20 18:31:21 +01:00
parent 889d7ba218 28c3ad291a
commit 60628864ca
1 changed files with 17 additions and 12 deletions
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29
Marlin/Marlin_main.cpp
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@ -402,22 +402,27 @@ void serial_echopair_P(const char *s_P, double v)
void serial_echopair_P(const char *s_P, unsigned long v)
{ serialprintPGM(s_P); SERIAL_ECHO(v); }
extern "C"{
extern unsigned int __bss_end;
extern unsigned int __heap_start;
extern void *__brkval;
#ifdef SDSUPPORT
#include "SdFatUtil.h"
int freeMemory() { return SdFatUtil::FreeRam(); }
#else
extern "C" {
extern unsigned int __bss_end;
extern unsigned int __heap_start;
extern void *__brkval;
int freeMemory() {
int free_memory;
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);
if ((int)__brkval == 0)
free_memory = ((int)&free_memory) - ((int)&__bss_end);
else
free_memory = ((int)&free_memory) - ((int)__brkval);
return free_memory;
return free_memory;
}
}
}
#endif //!SDSUPPORT
//adds an command to the main command buffer
//thats really done in a non-safe way.