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)

Release 3.4.0 - Toolchain update to GCC 12.3, I2S fixes

Major toolchain update, be sure to run ./tools/get.py to download updates if you're using git master!

Important Notes

• GCC 12.3 fixes several internal compiler errors present in 10.x that were noted in other projects.
• GDB was also updated to 12.0 to match the GCC version
• Picotool was moved to the latest release
• OpenOCD moved to 0.12 which drops support for legacy Picoprobe (non-CMSIS_DAP) because Raspberry Pi no longer supports that mode. Update your Picoprobes to the latest CMSIS_DAP version from Raspberry Pi to continue using them.

Toolchain

• GCC 12.3, GDB 12, OpenOCD 0.12, Picotool 1.1.2 (#1670)

I2S

• Add TDM support to I2S (#1673)
• Fix I2S stop/start race condition #1656 (#1659)

New Boards

• Added RP2040-ProMini board to the project. (#1674)
• Add Pimoroni Tiny2040 (#1672)

Misc

• Add stdint.h to generic variant common.h (#1677)
• Allow re-setting identical pins without panic() (#1655)
• Make MDNS compile with IPv6 enabled (#1651)
• SPI debugging: tiny fix & log actual baudrate (#1641)

Release 3.3.2 - WiFi hang fix, Serial updates, New boards

Important bug fix for WiFi under high load and a workaround for USB serial applications that don't set DTR properly.

WiFi

• Fix race condition between WiFi receive and consume (#1614)

Serial

• Add SerialUSB::ignoreFlowControl() method (#1624)

New boards

• Add new board Silicognition RP2040-Shim (#1623)
• Add Adafruit Metro RP2040 (#1630)

Quality of life fixes

• Update platform.txt to require auto-discovery and serial-monitor (#1631)
• Fix PlatformIO intellisense (#1616)

Release 3.3.1 - General bug fixes, I2S updates

Minor bug fixes in lots of parts of the core and libraries, additional boards.

New boards

• Add Challenger WiFi6/BLE5 board to the mix. (#1595)
• Add Pimoroni Plasma RP2040 support (#1556)
• Add ArtronShop RP2 Nano board (#1567)

Wire/I2C

• Handle swapped Wire IRQs properly (#1608)

OTA

• Fix FS upload crash (#1598)
• Remove obsolete refs to ATOMIC_FS_UPDATE (#1597)

I2S/Audio

• Add MCLK support for I2S, optimize clocks for jitter-free playback (#1555)
• Fix: 'I2S::operator=(const I2S&)' is implicitly (#1588)
• I2S: Don't consider _isHolding when it's an output (#1548)

SD/SDFS/SdFat

• Ensure 64bit math for SD card FSInfo (#1553)

Debugging

• BREAKING: Change default debug_script to cmsis-dap (#1565)

Release 3.3.0 - Pico SDK 1.5.1, I2S, and WebServer updates

Update to the latest Pico SDK, version 1.5.1, with a smaller TinyUSB installation and some Bluetooth bugfixes. Several minor I2S and audio related fixes when I2S is started and stopped multiple times.

Upgrades

• Update to Pico-SDK 1.5.1 (#1539)

I2S / Audio

• Addition ABM checks in PWMAudio and ADCInput (#1530)
• I2S check for failure of ARB and PIO allocation (#1528)
• Call I2S::end() in I2S destructor (#1527)
• Fix for invalid __channelCount in ~AudioBufferManager() (#1519)
• Enable proper reuse of PIO programs (#1526)

Other fixes and updates

• Linker tweaks for RAM-resident PicoDVI library functions (#1541)
• WebServer: Solve HTTP request delay by dropping idle connections (#1537)
• Add rebootToBootloader to reboot to bootloader from code (#1514)

Release 3.2.2 - More important FreeRTOS and I2S fixes

Some important FreeRTOS bug fixes and quality of life improvements, plus a major I2S correction eliminating clicking audio.

FreeRTOS

• CoreMutex add portYieldFromISR for FreeRTOS (#1484)
• Fix CoreMutex FreeRTOS ISR logic (#1510)
• Fix serial reset hang under FreeRTOS (#1495)

I2S

• AudioBufferManager(I2s, PWMAudio, ADCInput) clicking fix (#1500)
• AudioBufferManager: Make dma_claim_unused_channel() not panic (#1487)
• I2S::available/availableForWrite() returns bytes (#1499) (#1496)
• Add I2S::getOverUnderflow() (#1497)

Other fixes and update

• Update to Adafruit TinyUSB 2.2.1 (#1511)
• Added BT setup overload to pass name. (#1483)
• Implement the BD_ADDR(char * address_string) constructor. (#1440)

Release 3.2.1 - FreeRTOS and I2S bug fixes, misc updates

Several important FreeRTOS bug fixes and update to latest upstream, minor I2S fix, and Adafruit Feather breaking change

Breaking changes

• BREAKING: Swap Wire1 and Wire in Adafruit Feather (#1461)

FreeRTOS bug fixes and updates

• Merge latest FreeRTOS/SMP upstream branch (#1449)
• Clean up FreeRTOS, remove core freeze hacks (#1448)
• Use real FreeRTOS tasks to idle core during flash (#1444)
• Fix FreeRTOS CoreMutex shim to handle ISRs (#1442)

Minor bug fixes and updates

• Fix I2S::write(const uint8_t *buffer, size_t size) (#1461)
• BT Serial connection docs for Mac (#1459)
• Add setInverted() options to SerialPIO (#1451)
• Add dummy Serial implementation when NO_USB defined (#1438)
• Generate warnings if Pico STDIO init called (#1467)

Release 3.2.0 - Boards, Platform.IO updates, minor bug fixes

Lots of minor bug fixes and updates to core and Platform.io

Bug fixes

• Rename BTstack lib to BTstackLib (#1360)
• Clear compile errors if BT needed but not on (#1371)
• Fix USB Mouse/Joystick HID report ID (#1418)
• Protect the HW random generation from FreeRTOS (#1395)
• Fix USB crashes in FreeRTOS (#1419)
• Don't delete first cert, taken from ESP8266 repo (#1392)
• FreeRTOS compilation fix when no LED present (#1413)
• Add PICO_FLASH_SIZE_BYTES define (#1414) (#1416)
• Update to Adafruit_TinyUSB 2.1.0 (#1387)

Platform.IO updates

• Support and Document pico-debug in PlatformIO (#1427)
• Sync macros used in PlatformIO and platform.txt (#1386)
• Enable BlackMagicProbe for PlatformIO (#1378)
• Remove circular dependency on WiFi/LWIP_Ethernet (#1415)

New Boards

• Add Feathers: CAN and Prop-Maker (#1421)
• Add board Seeed Indicator RP2040 (#1375)