gaoro-xiao 14a532290d refactor: serialize CH390 runtime SPI access
Move runtime CH390 transactions behind a single ch390_runtime owner so main, lwIP glue, and EXTI no longer compete for SPI access. Keep the system stable under runtime load and capture the remaining CH390 readback failure as a credible low-level device-response issue in the handoff logs.
2026-04-01 03:39:08 +08:00
2026-03-31 16:34:03 +08:00
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2026-04-28 22:07:10 +00:00
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