Files
aes67-ESP32-P4/sdkconfig.defaults
T
bsncubed 039ec75473 Step 7.5b1: cspot (philippe44 fork) builds and links on the P4
- external/cspot: git submodule, pinned to philippe44/cspot 3010349
  (bell ed2d6e9); GPL-3.0.
- components/spotify: project component wrapping cspot. bell trimmed to
  what cspot needs (Tremor Vorbis; no codec wrapper, sinks, MQTT, web
  server, fmt, regex; cJSON from IDF). Xtensa biquad assembly filtered
  out (P4 is RISC-V). CMAKE_POLICY_VERSION_MINIMUM 3.5 for CMake 4.
- Patches in components/spotify/patches, applied at configure time:
  nanopb generator works with protobuf >= 5 (MakeClass removed);
  URLParser.cpp missing <cstdio>/<cstring> for GCC 14.
- CONFIG_COMPILER_CXX_EXCEPTIONS=y (cspot needs exceptions).
- spotify_init() only builds a LoginBlob (link check).
- CLAUDE.md: submodule init and IDF-venv Python packages for nanopb.
- Verified on board: "cspot linked: device "P4 AES67", zeroconf info 588
  bytes"; HLS still playing, PTP locked; image 1.83 MB (70% free).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-25 15:25:10 +10:00

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CONFIG_IDF_TARGET="esp32p4"
# OTA layout (partitions.csv): two app slots, no factory
CONFIG_PARTITION_TABLE_CUSTOM=y
CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions.csv"
# Bootloader had only 6% free below 0x8000; moved so it can grow (e.g. secure boot) without a relayout
CONFIG_PARTITION_TABLE_OFFSET=0x10000
# Rollback lives in the bootloader, which is only ever flashed over USB: enable it from the start
CONFIG_BOOTLOADER_APP_ROLLBACK_ENABLE=y
# Board has engineering silicon v1.3 (esptool chip_id). Rev <3 binaries don't run on rev 3 and vice versa.
CONFIG_ESP32P4_SELECTS_REV_LESS_V3=y
CONFIG_ESP32P4_REV_MIN_100=y
# 32 MB flash (esptool flash_id: GigaDevice c8/4019). App slots stay below 16 MB;
# cache mapping above 16 MB is experimental in IDF.
CONFIG_ESPTOOLPY_FLASHSIZE_32MB=y
# LLDP and PTP send raw frames from their own tasks next to lwIP: serialise EMAC transmits
CONFIG_ETH_TRANSMIT_MUTEX=y
# lwIP default is 10 sockets; PTP (2), AES67 TX, SAP, syslog and httpd's listen/control sockets
# use 7, leaving ~3 for web clients (httpd allows 7): a browser's keep-alive connections then
# starve new requests. 16 = 7 others + 7 web clients + OTA self-test client + 1 spare.
CONFIG_LWIP_MAX_SOCKETS=16
# 32 MB PSRAM in the P4 package (hex mode, 200 MHz; 250 MHz needs rev >= 3). Needed for step 7:
# HLS segment buffers, cspot, decoders. malloc() puts blocks >16 KB in PSRAM; DMA buffers stay internal.
CONFIG_SPIRAM=y
# cspot (Spotify Connect, step 7.5) needs C++ exceptions.
CONFIG_COMPILER_CXX_EXCEPTIONS=y