[nrf52_base]
; Instead of the standard nordicnrf52 platform, we use our fork which has our added variant files
platform =
  # renovate: datasource=custom.pio depName=platformio/nordicnrf52 packageName=platformio/platform/nordicnrf52
  platformio/nordicnrf52@10.12.0
extends = arduino_base
platform_packages =
  ; our custom Git version with C++17 support in platform.txt
  # renovate: datasource=git-refs depName=meshtastic/Adafruit_nRF52_Arduino packageName=meshtastic/Adafruit_nRF52_Arduino gitBranch=master
  platformio/framework-arduinoadafruitnrf52 @ https://github.com/meshtastic/Adafruit_nRF52_Arduino#0fd295f13203e93df19d578073646ec32f2bf45a
  ; Don't renovate toolchain-gccarmnoneeabi
  platformio/toolchain-gccarmnoneeabi@~1.90301.0

extra_scripts =
  ${env.extra_scripts}
  extra_scripts/nrf52_extra.py
  pre:extra_scripts/nrf52_lto.py
  extra_scripts/nrf52_warm_region.py ; post-link guard: image must end below the 12 KB warm-store raw-flash region at 0xEA000-0xED000

build_type = release
build_flags =
  -include variants/nrf52840/cpp_overrides/lfs_util.h
  ${arduino_base.build_flags}
  -Wno-unused-variable
  -Isrc/platform/nrf52
  ; The Arduino loop task runs the entire cooperative OSThread scheduler; the core's stock
  ; 4 KB (1024-word) stack overflows during BLE first-sync (admin config-apply -> radio
  ; reconfigure with XEdDSA/satmap/log frames stacked) - SWD-proven on T1000-E: SP driven
  ; 40 B below pxStack, corrupting adjacent heap -> silent HardFault reset on phone pairing.
  ; 2048 words = 8 KB, validated on hardware. Value is in WORDS; requires the #ifndef guard
  ; from meshtastic/Adafruit_nRF52_Arduino#7 (harmless redefinition warning until it merges).
  -DLOOP_STACK_SZ=2048
  -DLFS_NO_ASSERT                      ; Disable LFS assertions , see https://github.com/meshtastic/firmware/pull/3818
  -DMESHTASTIC_EXCLUDE_AUDIO=1
  -DMESHTASTIC_EXCLUDE_PAXCOUNTER=1
  -DMESHTASTIC_EXCLUDE_PKT_HISTORY_HASH=1 ; drop PacketHistory's 1 KB hash index; O(n) over ~240 records is negligible at LoRa packet rates
  -DOLEDDISPLAY_REDUCE_MEMORY          ; drop the ThingPulse OLED back buffer (~1 KB); TFT variants must -U this (TFTDisplay.cpp needs buffer_back)
  -Os
  -std=gnu++17
  -flto                 ; whole-image LTO (~-60KB) on every nrf52840 target; nrf52_lto.py (pre: extra_script) keeps the interrupt handlers out of LTO so they survive
  -fmerge-all-constants ; fold identical constants image-wide (~0.7KB; same flag stm32 uses)
build_unflags =
  -Ofast
  -Og
  -ggdb3
  -ggdb2
  -g3
  -g2
  -g
  -g1
  -g0
  -std=c++11
  -std=gnu++11

build_src_filter = 
  ${arduino_base.build_src_filter} +<platform/nrf52/> -<nimble/> -<mesh/wifi/> -<mesh/api/> -<mesh/http/> -<modules/esp32> -<mesh/eth/> -<mesh/raspihttp> -<serialization/>

lib_deps=
  ${arduino_base.lib_deps}
  ${radiolib_base.lib_deps}
  # renovate: datasource=github-tags depName=meshtastic/Crypto packageName=meshtastic/Crypto
  https://github.com/meshtastic/Crypto/archive/591ff9a690e8168ccb7a36abde8d7783e448d395.zip

lib_ignore =
  BluetoothOTA
  lvgl