[variant] Fix XIAO M0 Plus pin definitions and add PIN_NEOPIXEL#81
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cumin777 wants to merge 3 commits into
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[variant] Fix XIAO M0 Plus pin definitions and add PIN_NEOPIXEL#81cumin777 wants to merge 3 commits into
cumin777 wants to merge 3 commits into
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Adafruit NeoPixel library expects PIN_NEOPIXEL. Define it as alias to PIN_LED_RGB (D11/PA27) for compatibility. Co-Authored-By: Claude <noreply@anthropic.com>
…d pin definitions Based on schematic 202004620_XIAO SAMD21-Plus_V1.0, define all 31 pins including I2C0/I2C1 (SERCOM2/SERCOM1), SPI (SERCOM0), UART (SERCOM4), I2S, RGB LED, user button, and additional GPIOs. Bug fixes included: - PA15/PA14: TC3 only has CH0/CH1, corrected from invalid CH3/CH2 - PA19: TC3/WO[1] is on F-mux, use PIO_TIMER_ALT instead of PIO_TIMER - PB23: No EXTINT line, use EXTERNAL_INT_NONE instead of EXTERNAL_INT_7 Co-Authored-By: Claude <noreply@anthropic.com>
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Summary
Two changes for the XIAO M0 Plus variant:
Add
PIN_NEOPIXELmacro invariant.h— DefinePIN_NEOPIXELas alias toPIN_LED_RGB(D11/PA27) for compatibility with the Adafruit NeoPixel library and its example sketches.Rewrite
variant.cppwith complete and corrected pin definitions based on schematic202004620_XIAO SAMD21-Plus_V1.0, covering all 31 pins. Bug fixes included:Test plan
attachInterrupt()on D24 does not cause unexpected behavior🤖 Generated with Claude Code