jpmschweitzerandClaude Opus 4.8
4c3718411e
Two secondary mitigations for the DSI underrun (the primary fix is the reduced DPI clock in the BSP). Raise LV_INV_BUF_SIZE 32 -> 128 so the busy rain states stay partial-redraw instead of collapsing into a full-screen redraw, which dumps a ~1.3 MB PSRAM write burst that competes with the DSI's continuous framebuffer read. Advance the matrix rain every other tick (doubled step, visually identical) to halve how often its ~80 labels invalidate. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01LKPbR6DY2JygHbyLjxm7Uu
19 lines
1.0 KiB
CMake
19 lines
1.0 KiB
CMake
cmake_minimum_required(VERSION 3.16)
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include($ENV{IDF_PATH}/tools/cmake/project.cmake)
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# Grow LVGL's invalidation buffer (default 32) so the ~80 moving rain labels of the
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# busy face states stay as separate partial-redraw rects instead of collapsing into
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# one full-screen redraw. Secondary mitigation for the DSI PSRAM-bandwidth underrun
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# (primary fix is the reduced DPI clock in the BSP): a full-screen redraw dumps a
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# ~1.3 MB PSRAM write burst that competes with the DSI's continuous framebuffer read
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# and can re-trigger the underrun; keeping busy states partial avoids that. Applied
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# globally so LVGL and esp_lvgl_adapter (both size inv_areas[] by LV_INV_BUF_SIZE)
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# agree. The partial-flush path's stack scales with this, so app_main starts the LVGL
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# task with a 16 KB stack (see desklock_main.c) — the 8 KB default overflows at 128.
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# Must sit after the project.cmake include (defines idf_build_set_property) and before
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# project() consumes it.
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idf_build_set_property(COMPILE_OPTIONS "-DLV_INV_BUF_SIZE=128" APPEND)
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project(desklock)
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