Overview

Updates the core to the 2.1.1 Pico SDK release (plus a couple necessary fixes on the 2.1.2-develop branch) and bumps the RP2040 Pico default clock to the newly certified 200MHz. Other miscellaneous minor board-specific and library updates.

SDK / Clocks

• Update to SDK 2.1.2-develop (#2844)
• Adjust the PSRAM clock when over/underclock F_SYS (#2824)

Boards

• Add SparkFun XRP Controller (#2847)
• Define HSTX pins on Adafruit boards with HSTX or DVI connectors (#2825)
• Add SparkFun XRP Controller (Beta) (#2823)
• Support Makerbase MKSTHR36 and MKSTHR42 Boards (#2819)
• Added WizNet W6100 to the AdvancedWebServer example (#2812)
• Add SparkFun IoT RedBoard RP2350 (#2836)

Miscellaneous

• A2DP: scanAsyncDone & scanAsyncResults; fix write and availableForWrite (#2839)
• Enable add'l UART_AUX pinouts for RP2350 (#2837)
• Early out of (un)maskInterrupts() if no GPIO interrupts need to be masked (#2831)