Add support for Teensy 4

pinouts/Teensy_IMXRT.h

@@ -0,0 +1,37 @@
+#ifndef TLC_Teensy_IMXRT_h
+#define TLC_Teensy_IMXRT_h
+
+// bitbang I/O is pretty fast on Teensy 3.1
+// and avoids SPI sharing problems
+#ifdef DATA_TRANSFER_MODE
+#undef DATA_TRANSFER_MODE
+#endif
+#define DATA_TRANSFER_MODE TLC_BITBANG
+
+// Teensy pin 6 -> SIN (TLC pin 26)
+#define DEFAULT_BB_SIN_PIN	6
+#define DEFAULT_BB_SIN_PORT	6
+#define DEFAULT_BB_SIN_DDR	6
+
+// Teensy pin 7 -> SCLK (TLC pin 25)
+#define DEFAULT_BB_SCLK_PIN	7
+#define DEFAULT_BB_SCLK_PORT	7
+#define DEFAULT_BB_SCLK_DDR	7
+
+// FTM1_CH0 (Teensy pin 3) -> XLAT (TLC pin 24)
+#define XLAT_PIN		3
+#define XLAT_PORT		3
+#define XLAT_DDR		3
+
+// FTM1_CH1 (Teensy pin 4) -> BLANK (TLC pin 23)
+#define BLANK_PIN		2
+#define BLANK_PORT		2
+#define BLANK_DDR		2
+
+// CMTOUT (Teensy pin 5) -> GSCLK (TLC pin 18)
+#define GSCLK_PIN		5
+#define GSCLK_PORT		5
+#define GSCLK_DDR		5
+
+
+#endif