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rp2040: Need to enable/disable the PWM_IRQ_WRAP at these times

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In CircuitPython, leaving PM_IRQ_WRAP caused trouble after a display
was deinitialized.
This commit is contained in:
Jeff Epler 2021-02-26 16:36:27 -06:00
parent 632cfcede2
commit 69a429ef85
1 changed files with 2 additions and 0 deletions
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2
src/arch/rp2040.h
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@ -179,6 +179,7 @@ inline void _PM_timerStart(void *tptr, uint32_t period) {
pwm_set_counter(_PM_PWM_SLICE, 0);
pwm_set_wrap(_PM_PWM_SLICE, period);
pwm_set_enabled(_PM_PWM_SLICE, true);
irq_set_enabled(PWM_IRQ_WRAP, true);
#else
irq_set_enabled(_PM_IRQ_HANDLER, true); // Enable alarm IRQ
_PM_timerSave = timer_hw->timerawl; // Time at start
@ -201,6 +202,7 @@ inline uint32_t _PM_timerGetCount(void *tptr) {
uint32_t _PM_timerStop(void *tptr) {
#if _PM_CLOCK_PWM
pwm_set_enabled(_PM_PWM_SLICE, false);
irq_set_enabled(PWM_IRQ_WRAP, false);
#else
irq_set_enabled(_PM_IRQ_HANDLER, false); // Disable alarm IRQ
#endif