Release 3.8.0 - Onboard FAT+USB, networking fixes, new boards

Overview

Normal update with a new "USB-stick" mode support with FAT using the onboard flash with a FTL to level wear (or raw 4K sectors). Your Pico can now be the world's slowest USB drive! Makes it easy to transfer data to/from the device over USB.

Several networking fixes for interrupt-mode operation, important to avoid hard to reproduce crashes.

Onboard flash FAT filesystem

• Add FatFS and FatFSUSB - Wear-Leveled FTL based FAT filesystem for onboard flash (#2028)

Networking updates

• Protect W5500/ENC28J60 isLinked() call from IRQ (#2115)
• Add WiFi::beginNoBlock() (#2063)
• LwipIntfDev - linkStatus added (#2081)
• lwIP_enc28j60 - add missing end() method (#2055)
• Enable interrupt-mode for lwIP_ESPHost (#2036)
• Add RawDev::interruptMode (#2042)

New boards

• Add Waveshare RP2050-PiZero
• Add Waveshare RP2040 Matrix (#2113)
• Add Olimex RP2040-Pico30 (#2112)
• Add Sparkfun RP2040 MicroMod (#2111)

Misc updates

• Set creation time on LittleFS directory creation (#2108)
• Update to Adafruit TinyUSB 3.1.3 (#2043)
• Update to SDFat 2.2.2 release (#2079)
• Add native text to TinyUSB Host menu option (#2098)
• Add 128MHz frequency (#2069)
• Unswap CTS/RTS enable on SeriaUART (#2052)
• Use passed-in SPI on SD.end(true) (#2040)

Release 3.7.2 - FreeRTOS + PicoW hotfix

Overview

Important fix for FreeRTOS that avoids a crash on startup that was only present on the Pico-W.

FreeRTOS + PicoW crash fix

• Can't call get_rand_64 under FreeRTOS (#2004)

ESP32 WiFi.begin() fix

• Fix ESPHost WiFi connect without a specified BSSID (#2007)

Misc

• Update Windows Picotool blob pointers (#2009)
• Clean up WIFI local variable MAC size (#2006)

Release 3.7.1 - FreeRTOS, PWMAudio, Ethernet improvements

Overview

General bug fix and quality of life improvements.

FreeRTOS important fix

• Undo FreeRTOS idleOtherCore changes (#1992)

ESPHost (ESP32) WiFi

• Fix WiFiMulti and ESPhost STA connection w/BSSID (#2001)
• Fix warning in lwip_ESPHost, add to styler (#1998)

Wired Ethernet latency reduction and performance improvement

• Add W5100, W5500, and ECN28J60 interrupt-driven mode (#1986)
• Make W5100 example run on Wiznet w/no changes (#1994)

PWMAudio buzz reduction

• PWMAudio low bitrate whine fix (DMA pacing timer) (#1996)

Release 3.7.0 - ESP32 WiFi, wired Ethernet fixes, Apple M1 native binaries

Overview

An Apple M1 native toolchain is now included, no more need for Rosetta. Wired Ethernet has an important stability fix. Alpha support for ESP32-xx based WiFi included.

Apple M1/ARM

• Make OpenOCD and Picotool M1 native, too (#1977)
• Use ARM Python3 on M1 (#1976)
• Fix Apple M1 installation, add to CI (#1975)
• Add native Apple ARM silicon support (#1959)

LWIP/Wired Ethernet

• Undo #1864, fix LWIP offline error (#1979)
• lwIP_nodriver - end() compilation error fix (#1966)

ESP32-based WiFi

• Add ESP32-based WiFi support via lwIP_ESPHost library (#1950)
• WiFi - prepare for alternative drivers (#1935)

Boards

• Adds iLabs RP2040 Connectivity (LTE/WIFI/BLE) board. (#1936)
• Adding Dude's Cab board (#1933)
• Change Maker UNO RP2040 to Maker Uno RP2040 and board name in README.md (#1924)
• Fixed incorrect pinout for SPI interface. (#1951)

Misc

• Fix initial SPI startup (#1970)
• Skip SPI re-init if clock frequency doesn't change (#1934)
• Add TZ.h database, borrowed from ESP8266 core (#1947)

Release 3.6.3 - USB Host Mode, AP mode fixes, Mac Picotool/OpenOCD improvements

Overview

Adds support for Adafruit TinyUSB Host Mode thanks to @hathach. Bundles and uses USB dylibs on Mac for OpenOCD and Picotool, letting them run on Apple M1/2/3 silicon and not needing any Homebrew prerequisites on Mac-on-Intel.

USB

• Support native USB as host (#1910)

Mac Support

• Update Mac Picotool/OpenOCD to use bundled dylibs (#1922)

WiFi and Ethernet

• Set AP IP address on ::beginAP
• Minor LWIPEthernet cleanup (#1906)
• Use SW random generator for all LWIP (#1892)

Miscellaneous

• Adds definition for WIRE_INTERFACES_COUNT #1182 (#1921)
• Updated listfiles example and added CardInfo example (#1914)
• Add variants_dir support to pio build, allowing local variants in project repos (#1911)
• Correct calculation of totalBlocks() in SD.h and SDFS.h (#1899)
• Clean up FreeRTOS header, include add'l APIs (#1891)

Release 3.6.2 - SPI and FreeRTOS bug fixes

Overview

Important bug fixes for SPI 16-bit transfers and FreeRTOS + WiFi users.

FreeRTOS bug fixes

• Avoid freezeing the core from LWIP under FreeRTOS (#1884)
• Add documentation about MDNS + FreeRTOS = crash (#1880)
• Replace std::bind in MDNSResponder for UDP context (#1875)
• Enable interrupts last when resuming other core (#1872)
• Disable interrupts first when idling core (#1883)

SPI bug fixes

• Fix SPI 16-bit transfers (#1882)
• Fix SPI debug print warning (#1881)
• Only create SPI/Wire instances if variant defined (#1842)

WiFi/Ethernet modernization and clean up

• WiFiServer modernization (#1871)
• Remove IPv6 compile warning (#1867)
• LwipIntfDev - disconnect()/end() should not clear static IP settings (#1866)
• Remove unneeded intermediate async for Ethernet (#1864)
• WiFi and Ethernet - config static IP auto gw,mask,dns as in Arduino libs (#1862)
• LwipIntfDev - hostByName default value for the timeout parameter (#1858)
• wl_defintions.h wl_enc_type update (#1859)
• LwipIntfDev - added macAddress getter and DNS IP getter and setter (#1856)
• Added clearAPList method to WiFiMulti (#1848)

New board

• Add new board variant: Cytron Maker UNO RP2040 (#1838)

Release 3.6.1 - New boards and bugfixes

Overview

No major updates, just lots of little bug fixes and clean ups.

Note: Release 3.6.1 is a minor toolchain update. Be sure to run ./tools/get.py to download updates if you're using git master under Windows or Mac!

New Boards

• Added Degz Suibo RP2040 board (#1828)
• Added RP2040-Eins board (#1804)
• Add RAKwireless RAK11300 (#1802)
• Add Sea-Picro board (#1784)

Core

• Add rp2040.getStackPointer and getFreeStack (#1816)
• Allow full 8K stack for both cores, optionally (#1750)
• Add Serial.dtr() and Serial.rts() methods (#1779)
• Clear dirty flag after committing EEPROM to flash (#1776)
• Allow changing USB HID poll rate (#1771)

Bluetooth/BLE

• Avoid infinite loop in BLE HID send (#1834)
• Add debugging for Bluetooth (#1767)

FreeRTOS

• Avoid memory allocation in Ethernet callbacks causing hang on FreeRTOS for PicoW or wired Ethernet (#1815)

I2S

• Allow MCLK multiplier to be set on all I2S devices (#1813)

Wired Ethernet (WIZnet w5500, w5100, ENC28J60)

• Protect W5500/ENC28J60 isLinked from interrupt (#1805)

SPI / Wire

• Adding capability to enable timeout for I2C (#1793)
• Avoid calling spi_set_format during transactions (#1762)
• Avoid calling spi_set_format during SPI transfers (#1762)
• Don't break transfer16 into 2 8-bit CS periods (#1764)

Toolchain Cleanup

• Fix picotool path for Windows and Mac (#1836)
• Handled already mounted disk on Linux for uploads. (#1797)
• Use __attribute((weak)) for _write() and other stubs called by newlib, so that sketch and library code can provide non-stub implementations (#1777)

Release 3.6.0 - Wired Ethernet, SPI, BLE multi-device, GDB-on-Windows fixes

Overview

Lots of new features this release:

• Full, native support for wired Ethernet adapters on the Pico. All classes like WebServer and HTTPClient and ArduinoOTA can be used just as they are used on the Pico W.
• SPI transactions and SPISlave added
• Bluetooth BLE HID devices can co-exist (i.e. keyboard + mouse)

Note: Release 3.6.x is a minor toolchain update. Be sure to run ./tools/get.py to download updates if you're using git master under Windows!

Wired Ethernet (WIZnet w5500, w5100, ENC28J60)

• Allow Ethernet devices on SPI1 (#1725)
• Add WIZnet W5100S-EVB-Pico docs (#1713)
• Fallthrough LWIP mutex on PicoW wired Ethernet (#1712)
• Support wired network interfaces (W5500, W5100, ENC28J60) (#1703)

SPI

• Add SPISlave class (#1717)
• Protect SPI transaction start/end from race conditions (#1715)
• Support IRQ disabled SPI transactions (#1714)

Bluetooth/BLE

• BLE HID composite device support (#1587)

Toolchain Cleanup

• Fix Windows GDB startup with new toolchain binary (#1726)
• Avoid spurious GCC 7.x warning in platform.io builds (#1709)
• Add BOOTSEL documentation (#1722)

Release 3.5.0 - Minor toolchain bump for Platform.IO

Note: Release 3.5.x is a minor toolchain update. Be sure to run ./tools/get.py to download updates if you're using git master!

• GCC is still at 12.3, but GDB has been bumped up to 13.2 to avoid a bug in 12.x GDB and Win32.
• One minor linker change was added to hide a new spurious binutils-GDB-13.2-release warning.
• There should be no functional changes other than this fix since GCC is still the same as in the 3.4.x releases.

Toolchain Cleanup

• GDB/Binutils release-gdb-13.2, GCC still 12.3 (#1706)

New Boards

• Pin definitions for Pimoroni Tiny 2040 (#1699)

Release 3.4.1 - Toolchain cleanup, minor bug fixes

Note Release 3.4.x is a major toolchain update. Be sure to run ./tools/get.py to download updates if you're using git master!

Toolchain Cleanup

• Rebuild OTA using GCC 12.3 (#1690)
• Fix gcc search path in make-ota.sh (#1688)
• Rebuild libpico/libbearssl using GCC 12.3 (#1686)
• Avoid obsolete GCC 7.1 note on building WiFi (#1684)

PicoProbe Debugging

• Fix PicoProbe CMSIS restart of second core (#1689)

Miscellaneous bug fixes

• Fix Print::print(0ULL) (#1692)
• Ensure HID reports aren't dropped (#1685)