fix(serial): move serial command handler to PRO_CPU (core 0)#2562
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r13xr13 wants to merge 1 commit into
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fix(serial): move serial command handler to PRO_CPU (core 0)#2562r13xr13 wants to merge 1 commit into
r13xr13 wants to merge 1 commit into
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On dual-core ESP32, the serial command handler task was pinned to core 1 which is the Arduino UI core. Moving it to core 0 (PRO_CPU) keeps background processing off the UI core, preventing input stutter during serial command execution.
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Summary
On dual-core ESP32 (all Xtensa chips), the serial command handler task was pinned to core 1, which is the Arduino UI loop core. Processing serial commands on the UI core causes input stutter when commands take more than a few ms.
Moved the task to core 0 (PRO_CPU), keeping background serial processing off the UI thread.
Changes
serialcmds.cpp: Change task affinity from core 1 to core 0 on dual-core chips#if SOC_CPU_CORES_NUM > 1