Add support for RP2040

Author: peterpolidoro

README.org

@@ -4,7 +4,7 @@
 
 * Library Information
 - Name :: TMC429
-- Version :: 2.3.0
+- Version :: 2.3.1
 - License :: BSD
 - URL :: https://github.com/janelia-arduino/TMC429
 - Author :: Peter Polidoro

library.properties

@@ -1,5 +1,5 @@
 name=TMC429
-version=2.3.0
+version=2.3.1
 author=Peter Polidoro <peter@polidoro.io>
 maintainer=Peter Polidoro <peter@polidoro.io>
 sentence=Trinamic TMC429 triple-axis dedicated step and direction motion controller.

src/TMC429.h

@@ -173,7 +173,7 @@ class TMC429
 
   // SPISettings
   const static uint32_t SPI_CLOCK = 1000000;
-#if defined(ARDUINO_ARCH_SAMD) || defined(ARDUINO_ARCH_RENESAS)
+#if defined(ARDUINO_ARCH_SAMD) || defined(ARDUINO_ARCH_RP2040) || defined(ARDUINO_ARCH_RENESAS)
   const static BitOrder SPI_BIT_ORDER = MSBFIRST;
 #else
   const static uint8_t SPI_BIT_ORDER = MSBFIRST;