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Improved accuracy of common_hal_mcu_delay_us of STM port. #5553

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merged 2 commits into from
Nov 8, 2021

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@EmergReanimator EmergReanimator commented Nov 7, 2021

SysTick Current Value Register must be cleared before enabling. Otherwise only the first call of common_hal_mcu_delay_us works as expected. All subsequent calls returns some tens of us earlier as requested.

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Thank you!

@tannewt tannewt merged commit e5c7ff7 into adafruit:main Nov 8, 2021
@EmergReanimator EmergReanimator deleted the stm branch January 5, 2022 19:42
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2 participants