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bb58c69d38
Carve 64KB from SPIFFS for a coredump partition at 0x7F0000. On any crash (panic, WDT, assert), the ESP32 writes CPU state and backtrace to flash, readable on next boot with espcoredump. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
96 lines
3.6 KiB
Plaintext
96 lines
3.6 KiB
Plaintext
# Required for Arduino framework
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CONFIG_FREERTOS_HZ=1000
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# Flash configuration for 8MB
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CONFIG_ESPTOOLPY_FLASHSIZE_8MB=y
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CONFIG_PARTITION_TABLE_CUSTOM=y
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CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions.csv"
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# Enable Bluetooth with NimBLE (uses ~100KB less RAM than Bluedroid)
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CONFIG_BT_ENABLED=y
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CONFIG_BT_NIMBLE_ENABLED=y
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CONFIG_BT_BLUEDROID_ENABLED=n
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# NimBLE role configuration - enable both central and peripheral for mesh
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CONFIG_BT_NIMBLE_ROLE_CENTRAL=y
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CONFIG_BT_NIMBLE_ROLE_PERIPHERAL=y
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CONFIG_BT_NIMBLE_ROLE_BROADCASTER=y
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CONFIG_BT_NIMBLE_ROLE_OBSERVER=y
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# NimBLE connection settings
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CONFIG_BT_NIMBLE_MAX_CONNECTIONS=3
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CONFIG_BT_NIMBLE_MAX_BONDS=10
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# NimBLE GATT settings
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CONFIG_BT_NIMBLE_ATT_PREFERRED_MTU=517
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CONFIG_BT_NIMBLE_GAP_DEVICE_NAME_MAX_LEN=31
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# Increase task stack size for stability
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CONFIG_BT_NIMBLE_TASK_STACK_SIZE=8192
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# Coexistence with WiFi
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CONFIG_ESP32_WIFI_SW_COEXIST_ENABLE=y
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# Enable C++ exceptions (required for microReticulum)
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CONFIG_COMPILER_CXX_EXCEPTIONS=y
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CONFIG_COMPILER_CXX_EXCEPTIONS_EMG_POOL_SIZE=0
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# Enable PSRAM (8MB external RAM) for zero heap fragmentation
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CONFIG_ESP32S3_SPIRAM_SUPPORT=y
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CONFIG_SPIRAM=y
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CONFIG_SPIRAM_MODE_OCT=y
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CONFIG_SPIRAM_SPEED_80M=y
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# Configure malloc to use PSRAM
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CONFIG_SPIRAM_USE_MALLOC=y
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# Allocations smaller than this go to internal RAM (bytes)
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# Lowered from 4096 to 64 to move Bytes allocations (16-200 bytes) to PSRAM
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# This reduces internal heap fragmentation at cost of slightly slower access
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CONFIG_SPIRAM_MALLOC_ALWAYSINTERNAL=64
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# Reserve this much internal RAM for DMA/ISR (bytes)
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CONFIG_SPIRAM_MALLOC_RESERVE_INTERNAL=32768
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# ============================================================================
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# Boot Time Optimizations
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# These settings reduce boot time. See BOOT_OPTIMIZATIONS.md for details.
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# ============================================================================
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# Disable PSRAM memory test at boot (~2 seconds saved for 8MB PSRAM)
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# The memory test verifies PSRAM integrity but is redundant for stable hardware.
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# To re-enable for debugging: comment out this line or set to y
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CONFIG_SPIRAM_MEMTEST=n
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# Reduce bootloader log verbosity (saves serial output time)
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# Bootloader messages are rarely needed in production
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CONFIG_BOOTLOADER_LOG_LEVEL_WARN=y
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CONFIG_BOOTLOADER_LOG_LEVEL=2
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# Skip ROM bootloader output (saves serial time)
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CONFIG_BOOT_ROM_LOG_ALWAYS_OFF=y
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# ============================================================================
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# FreeRTOS Timer Service Task
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# Default 2048 is too small when NimBLE/WiFi timer callbacks run
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# ============================================================================
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CONFIG_FREERTOS_TIMER_TASK_STACK_DEPTH=4096
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# ============================================================================
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# Task Watchdog Timer (TWDT)
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# Detects task starvation and deadlock conditions
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# 30s timeout accommodates SPIFFS flash I/O during identity persistence
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# (writing 40-50 destinations to flash takes 5-15s with GC/erase)
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# ============================================================================
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CONFIG_ESP_TASK_WDT_EN=y
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CONFIG_ESP_TASK_WDT_TIMEOUT_S=30
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CONFIG_ESP_TASK_WDT_CHECK_IDLE_TASK_CPU0=y
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CONFIG_ESP_TASK_WDT_CHECK_IDLE_TASK_CPU1=y
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# ============================================================================
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# Core Dump — writes CPU state + backtrace to flash on crash
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# Read with: espcoredump.py info_corefile -t raw -c 0x7F0000 -s 0x10000 <port>
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# ============================================================================
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CONFIG_ESP_COREDUMP_ENABLE_TO_FLASH=y
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CONFIG_ESP_COREDUMP_DATA_FORMAT_ELF=y
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CONFIG_ESP_COREDUMP_CHECKSUM_SHA256=y
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CONFIG_ESP_COREDUMP_MAX_TASKS_NUM=64
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