24 lines
736 B
C
24 lines
736 B
C
// ********************* Critical section helpers *********************
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volatile bool interrupts_enabled = false;
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void enable_interrupts(void) {
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interrupts_enabled = true;
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__enable_irq();
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}
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void disable_interrupts(void) {
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interrupts_enabled = false;
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__disable_irq();
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}
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uint8_t global_critical_depth = 0U;
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#define ENTER_CRITICAL() \
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__disable_irq(); \
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global_critical_depth += 1U;
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#define EXIT_CRITICAL() \
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global_critical_depth -= 1U; \
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if ((global_critical_depth == 0U) && interrupts_enabled) { \
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__enable_irq(); \
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}
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