fw: enable FreeRTOS tickless idle and optimize USB-PD task loop for low-power sleep - #17
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genneth wants to merge 2 commits into
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fw: enable FreeRTOS tickless idle and optimize USB-PD task loop for low-power sleep#17genneth wants to merge 2 commits into
genneth wants to merge 2 commits into
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UavL
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Aug 2, 2026
…riage Static analysis of the video-loss path, power/suspend state machine, and upstream PRs Modos-Labs#16 and Modos-Labs#17, plus an ordered hardware test plan. No hardware was observed; every claim is labelled code-derived, inferred, estimated, or needing a test.
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This PR enables low-power MCU sleep during system idle and suspended states:
configUSE_TICKLESS_IDLEinFreeRTOSConfig.hwithPreSleepProcessing/PostSleepProcessingHAL tick suspension, allowing the STM32 MCU to enter low-power sleep mode when no RTOS tasks are active.do-whilealert loop infw/User/usbpd.cto yield after 5 iterations when processing TCPC interrupts, preventing 100% CPU lockup and allowing tickless sleep to engage.Tested and verified on Modos Paper Monitor hardware.