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82ec74a072
## Summary
Arduino ```setup()``` and ```loop()``` run under a Task with a fixed Stack size of 8KB.
Users may want to change this size.
This PR adds this possibility by just adding a line of code, as for example:
``` dart
ESP_LOOP_TASK_STACK_SIZE(16384);
void setup() {
}
void loop() {
}
```
## Impact
None. It adds a new functionality to ESP32 Arduino.
If ```ESP_LOOP_TASK_STACK_SIZE(newSize);``` is not declared/used, it will compile the sketch with the default stack size of 8KB.
## Related links
fix #6010
https://github.com/espressif/arduino-esp32/issues/6010#issuecomment-992701658
Thanks @igrr for the suggestion!
37 lines
1.4 KiB
C++
37 lines
1.4 KiB
C++
/*
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ESP32 Arduino creates a task to run setup() and then to execute loop() continuously
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This task can be found at https://github.com/espressif/arduino-esp32/blob/master/cores/esp32/main.cpp
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By default "loopTask" will be created with a stack size of 8KB.
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This should be plenty for most general sketches.
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There is a way to change the stack size of this task by using
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SET_LOOP_TASK_STACK_SIZE(size);
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It will bypass the default stack size of 8KB and allow the user to define a new size.
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It is recommend this value to be higher than 8KB, for instance 16KB.
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This increasing may be necessary for the sketches that use deep recursion for instance.
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In this example, you can verify it by changing or just commenting out SET_LOOP_TASK_STACK_SIZE();
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*/
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// This sets Arduino Stack Size - comment this line to use default 8K stack size
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SET_LOOP_TASK_STACK_SIZE(16*1024); // 16KB
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void setup() {
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Serial.begin(115200);
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Serial.printf("Arduino Stack was set to %d bytes", getArduinoLoopTaskStackSize());
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// Print unused stack for the task that is running setup()
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Serial.printf("\nSetup() - Free Stack Space: %d", uxTaskGetStackHighWaterMark(NULL));
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}
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void loop() {
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delay(1000);
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// Print unused stack for the task that is running loop() - the same as for setup()
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Serial.printf("\nLoop() - Free Stack Space: %d", uxTaskGetStackHighWaterMark(NULL));
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}
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