SPI DMA: add support for SERCOM6 & 7 on big M4 chips

Author: PaintYourDragon

Adafruit_SPITFT.cpp

@@ -662,6 +662,16 @@ void Adafruit_SPITFT::initSPI(uint32_t freq) {
                         } else if(*(SERCOM **)hwspi._spi == &sercom5) {
                             dmac_id  = SERCOM5_DMAC_ID_TX;
                             data_reg = &SERCOM5->SPI.DATA.reg;
+#endif
+#if defined SERCOM6
+                        } else if(*(SERCOM **)hwspi._spi == &sercom6) {
+                            dmac_id  = SERCOM6_DMAC_ID_TX;
+                            data_reg = &SERCOM6->SPI.DATA.reg;
+#endif
+#if defined SERCOM7
+                        } else if(*(SERCOM **)hwspi._spi == &sercom7) {
+                            dmac_id  = SERCOM7_DMAC_ID_TX;
+                            data_reg = &SERCOM7->SPI.DATA.reg;
 #endif
                         }
                         dma.setPriority(DMA_PRIORITY_3);

library.properties

@@ -1,5 +1,5 @@
 name=Adafruit GFX Library
-version=1.4.9
+version=1.4.10
 author=Adafruit
 maintainer=Adafruit <[email protected]>
 sentence=Adafruit GFX graphics core library, this is the 'core' class that all our other graphics libraries derive from.