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implement EspClass::getFreeSysStack method #5153

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toomasz wants to merge 3 commits into from
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implement EspClass::getFreeSysStack method #5153

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da62ebc
getFreeSysStack implementation
toomasz Sep 19, 2018
434dd97
space instead of tabs
toomasz Sep 19, 2018
6d2010e
Merge branch 'master' into feature/get_free_stack
devyte Sep 21, 2018
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5 changes: 5 additions & 0 deletions cores/esp8266/Esp.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -183,6 +183,11 @@ uint32_t EspClass::getFreeContStack()
return cont_get_free_stack(g_pcont);
}

uint32_t EspClass::getFreeSysStack()
{
register volatile uint32_t stackAddress asm("a1");
return stackAddress-SYSTEM_STACK_END_ADDRESS;
}
uint32_t EspClass::getChipId(void)
{
return system_get_chip_id();
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4 changes: 4 additions & 0 deletions cores/esp8266/Esp.h
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Expand Up @@ -65,6 +65,9 @@ enum RFMode {
#define WAKE_NO_RFCAL RF_NO_CAL
#define WAKE_RF_DISABLED RF_DISABLED

// for getFreeSysStack
#define SYSTEM_STACK_END_ADDRESS 0x3FFFC000

enum ADCMode {
ADC_TOUT = 33,
ADC_TOUT_3V3 = 33,
Expand Down Expand Up @@ -111,6 +114,7 @@ class EspClass {
void getHeapStats(uint32_t* free = nullptr, uint16_t* max = nullptr, uint8_t* frag = nullptr);

uint32_t getFreeContStack();
uint32_t getFreeSysStack();

const char * getSdkVersion();
String getCoreVersion();
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