Overview

Lots of RP2350 related goodness in the release, including higher performance and full FreeRTOS and OTA support with bug fixes for the RP2350B extra GPIO pins. A new toolchain build is included, moving to GCC 12.4 and Newlib 4.3.0 so be sure to run get.py on your git installations and update all submodules.

Toolchain

• GCC to 12.4, Newlib to 4.3.0, faster RP2350 libs (#2480)
  This new toolchain speeds up many RP2350 operations by using -O2 optimization in Newlib. This speeds up memcpy over 8x(!) as well as other standard library routines, at the cost of ~10K of flash for additional code.

New Boards

• Add Datanoise PicoADK v2 (RP2350). (#2413)
• Add Adafruit Feather RP2350 with HSTX (#2459)

RP2350

• Add FreeRTOS support for RP2350 (#2406)
• Enable OTA support for RP2350 (#2472)
• Don't realloc(nullptr) from PSRAM by default (#2473)
• Remove CFG_TUSB_DEBUG for rp2350 (#2469)
• Fix PICO_RP2350B define check for other peripherals (#2463)
• Fix SerialUART RP2350B define checks
• Support PIO2 for SoftwareSerial/SerialPIO (#2451)
• Add "#define PICO_RP2350B 1" since this board is based on RP2350B (#2445)
• Solderparty_rp2350_stamp_xl: Properly mark as using RP2350B (#2446)

Networking

• Adds support for ESP Hosted to WiFi/BLE boards and adds a menu item for ESP WiFi selection (#2468)
• Allow LWIP Ethernet HW IRQs > 32 (#2464)

Wire (I2C) / Peripherals

• Wire probe clock stretch up to 500us (#2493)
• I2C lib : implement "bus recovery" feature on timeout reset (#2479)
• I2C lib: Handle timeout in write() (#2458)
• Add new Pico SDK AON_Timer module (#2489)