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codal_port/ticks_cpu: Check CoreDebug DEMCR trace enable bit. #199

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Merged
merged 1 commit into from
Apr 22, 2024
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codal_port/ticks_cpu: Check CoreDebug DEMCR trace enable bit. #199

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2 changes: 1 addition & 1 deletion src/codal_port/mphalport.h
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Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,7 @@ static inline void enable_irq(uint32_t state) {
}

static inline mp_uint_t mp_hal_ticks_cpu(void) {
if (!(DWT->CTRL & DWT_CTRL_CYCCNTENA_Msk)) {
if (!(DWT->CTRL & DWT_CTRL_CYCCNTENA_Msk) || !(CoreDebug->DEMCR & CoreDebug_DEMCR_TRCENA_Msk)) {
CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
DWT->CYCCNT = 0;
DWT->CTRL |= DWT_CTRL_CYCCNTENA_Msk;
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