atmel-samd: Update internal pins for Feather M0 Express Rev B

Author: tannewt

atmel-samd/boards/feather_m0_flash/mpconfigboard.h

@@ -4,22 +4,42 @@
 #define MICROPY_HW_BOARD_NAME "Adafruit Feather M0 Flash"
 #define MICROPY_HW_MCU_NAME "samd21g18"
 
-#define MICROPY_HW_NEOPIXEL &pin_PA14
+// Rev. A
+// #define MICROPY_HW_NEOPIXEL &pin_PA14
+
+// Rev. B
+#define MICROPY_HW_NEOPIXEL &pin_PA06
 
 #define SPI_FLASH_BAUDRATE  (1000000)
 
 // On-board flash
-#define SPI_FLASH_MUX_SETTING SPI_SIGNAL_MUX_SETTING_E
-#define SPI_FLASH_PAD0_PINMUX PINMUX_PA12D_SERCOM4_PAD0 // MISO
+// Rev A.
+// #define SPI_FLASH_MUX_SETTING SPI_SIGNAL_MUX_SETTING_E
+// #define SPI_FLASH_PAD0_PINMUX PINMUX_PA12D_SERCOM4_PAD0 // MISO
+// // Use default pinmux for the chip select since we manage it ourselves.
+// #define SPI_FLASH_PAD1_PINMUX PINMUX_DEFAULT // CS
+// #define SPI_FLASH_PAD2_PINMUX PINMUX_PB10D_SERCOM4_PAD2 // MOSI
+// #define SPI_FLASH_PAD3_PINMUX PINMUX_PB11D_SERCOM4_PAD3 // SCK
+// #define SPI_FLASH_SERCOM      SERCOM4
+
+// Rev B.
+#define SPI_FLASH_MUX_SETTING SPI_SIGNAL_MUX_SETTING_C
+#define SPI_FLASH_PAD0_PINMUX PINMUX_PA08D_SERCOM2_PAD0 // MOSI
 // Use default pinmux for the chip select since we manage it ourselves.
-#define SPI_FLASH_PAD1_PINMUX PINMUX_DEFAULT // CS
-#define SPI_FLASH_PAD2_PINMUX PINMUX_PB10D_SERCOM4_PAD2 // MOSI
-#define SPI_FLASH_PAD3_PINMUX PINMUX_PB11D_SERCOM4_PAD3 // SCK
+#define SPI_FLASH_PAD1_PINMUX PINMUX_PA09D_SERCOM2_PAD1 // SCK
+#define SPI_FLASH_PAD2_PINMUX PINMUX_PA14C_SERCOM2_PAD2 // MISO
+#define SPI_FLASH_PAD3_PINMUX PINMUX_DEFAULT // SCK
+#define SPI_FLASH_SERCOM      SERCOM2
+
 #define SPI_FLASH_CS          PIN_PA13
-#define SPI_FLASH_SERCOM      SERCOM4
 
-#define MICROPY_PORT_A        (PORT_PA12 | PORT_PA13 | PORT_PA14 | PORT_PA24 | PORT_PA25)
-#define MICROPY_PORT_B        (PORT_PB10 | PORT_PB11)
+// Rev. A
+// #define MICROPY_PORT_A        (PORT_PA12 | PORT_PA13 | PORT_PA14 | PORT_PA24 | PORT_PA25)
+// #define MICROPY_PORT_B        (PORT_PB10 | PORT_PB11)
+
+// Rev. B
+#define MICROPY_PORT_A        (PORT_PA06 | PORT_PA08 | PORT_PA09 | PORT_PA14 | PORT_PA13 | PORT_PA14 | PORT_PA24 | PORT_PA25)
+#define MICROPY_PORT_B        ( 0 )
 
 #define AUTORESET_DELAY_MS 500