atmel-samd: Rework pin definitions to share most of the data structures and included based on ASF defines.

11 files changed, 743 insertions, 666 deletions

diff --git a/atmel-samd/Makefile b/atmel-samd/Makefile
index 2cd917beb..ffc75859a 100644
--- a/atmel-samd/Makefile
+++ b/atmel-samd/Makefile
@@ -173,6 +173,7 @@ SRC_C = \
 	asf/sam0/utils/cmsis/samd21/source/gcc/startup_samd21.c \
 	asf/sam0/utils/cmsis/samd21/source/system_samd21.c \
 	asf/sam0/utils/syscalls/gcc/syscalls.c \
+	boards/samd21_pins.c \
 	boards/$(BOARD)/init.c \
 	boards/$(BOARD)/pins.c \
 	lib/fatfs/ff.c \
diff --git a/atmel-samd/boards/arduino_zero/pins.c b/atmel-samd/boards/arduino_zero/pins.c
index 64f0b9e63..b7f67ae4b 100644
--- a/atmel-samd/boards/arduino_zero/pins.c
+++ b/atmel-samd/boards/arduino_zero/pins.c
@@ -1,139 +1,4 @@
-#include "pins.h"
-#include "asf/sam0/drivers/system/system.h"
-
-PIN(PA02, true, ADC_POSITIVE_INPUT_PIN0, NO_TIMER, NO_TIMER, NO_SERCOM,
-    NO_SERCOM);
-PIN(PB08, true, ADC_POSITIVE_INPUT_PIN2,
-  TIMER(TC4, 0, 0, 0, PIN_PB08E_TC4_WO0, MUX_PB08E_TC4_WO0),
-  NO_TIMER,
-  SERCOM(SERCOM4, 0, PINMUX_PB08D_SERCOM4_PAD0),
-  NO_SERCOM);
-PIN(PB09, true, ADC_POSITIVE_INPUT_PIN3,
-  TIMER(TC4, 0, 1, 1, PIN_PB09E_TC4_WO1, MUX_PB09E_TC4_WO1),
-  NO_TIMER,
-  SERCOM(SERCOM4, 1, PINMUX_PB09D_SERCOM4_PAD1),
-  NO_SERCOM);
-PIN(PA04, true, ADC_POSITIVE_INPUT_PIN4,
-  TIMER(0, TCC0, 0, 0, PIN_PA04E_TCC0_WO0, MUX_PA04E_TCC0_WO0),
-  NO_TIMER,
-  SERCOM(SERCOM0, 0, PINMUX_PA04D_SERCOM0_PAD0),
-  NO_SERCOM);
-PIN(PA05, true, ADC_POSITIVE_INPUT_PIN5,
-  TIMER(0, TCC0, 1, 1, PIN_PA05E_TCC0_WO1, MUX_PA05E_TCC0_WO1),
-  NO_TIMER,
-  SERCOM(SERCOM0, 1, PINMUX_PA05D_SERCOM0_PAD1),
-  NO_SERCOM);
-PIN(PB02, true, ADC_POSITIVE_INPUT_PIN10,
-  NO_TIMER,
-  NO_TIMER,
-  SERCOM(SERCOM5, 0, PINMUX_PB02D_SERCOM5_PAD0),
-  NO_SERCOM);
-PIN(PA11, true, ADC_POSITIVE_INPUT_PIN19,
-  TIMER(0, TCC1, 1, 1, PIN_PA11E_TCC1_WO1, MUX_PA11E_TCC1_WO1),
-  TIMER(0, TCC0, 3, 3, PIN_PA11F_TCC0_WO3, MUX_PA11F_TCC0_WO3),
-  SERCOM(SERCOM0, 3, PINMUX_PA11C_SERCOM0_PAD3),
-  SERCOM(SERCOM2, 3, PINMUX_PA11D_SERCOM2_PAD3));
-PIN(PA10, true, ADC_POSITIVE_INPUT_PIN18,
-  TIMER(0, TCC1, 0, 0, PIN_PA10E_TCC1_WO0, MUX_PA10E_TCC1_WO0),
-  TIMER(0, TCC0, 2, 2, PIN_PA10F_TCC0_WO2, MUX_PA10F_TCC0_WO2),
-  SERCOM(SERCOM0, 2, PINMUX_PA10C_SERCOM0_PAD2),
-  SERCOM(SERCOM2, 2, PINMUX_PA10D_SERCOM2_PAD2));
-PIN(PA14, false, NO_ADC_INPUT,
-  TIMER(TC3, 0, 0, 0, PIN_PA14E_TC3_WO0, MUX_PA14E_TC3_WO0),
-  TIMER(0, TCC0, 0, 4, PIN_PA14F_TCC0_WO4, MUX_PA14F_TCC0_WO4),
-  SERCOM(SERCOM2, 2, PINMUX_PA14C_SERCOM2_PAD2),
-  SERCOM(SERCOM4, 2, PINMUX_PA14D_SERCOM4_PAD2));
-PIN(PA09, true, ADC_POSITIVE_INPUT_PIN17,
-  TIMER(0, TCC0, 1, 1, PIN_PA09E_TCC0_WO1, MUX_PA09E_TCC0_WO1),
-  TIMER(0, TCC1, 3, 3, PIN_PA09F_TCC1_WO3, MUX_PA09F_TCC1_WO3),
-  SERCOM(SERCOM0, 1, PINMUX_PA09C_SERCOM0_PAD1),
-  SERCOM(SERCOM2, 1, PINMUX_PA09D_SERCOM2_PAD1));
-PIN(PA08, true, ADC_POSITIVE_INPUT_PIN16,
-  TIMER(0, TCC0, 0, 0, PIN_PA08E_TCC0_WO0, MUX_PA08E_TCC0_WO0),
-  TIMER(0, TCC1, 2, 2, PIN_PA08F_TCC1_WO2, MUX_PA08F_TCC1_WO2),
-  SERCOM(SERCOM0, 0, PINMUX_PA08C_SERCOM0_PAD0),
-  SERCOM(SERCOM2, 0, PINMUX_PA08D_SERCOM2_PAD0));
-PIN(PA15, false, NO_ADC_INPUT,
-  TIMER(TC3, 0, 1, 1, PIN_PA15E_TC3_WO1, MUX_PA15E_TC3_WO1),
-  TIMER(0, TCC0, 1, 5, PIN_PA15F_TCC0_WO5, MUX_PA15F_TCC0_WO5),
-  SERCOM(SERCOM2, 3, PINMUX_PA15C_SERCOM2_PAD3),
-  SERCOM(SERCOM4, 3, PINMUX_PA15D_SERCOM4_PAD3));
-PIN(PA20, false, NO_ADC_INPUT,
-  TIMER(0, TCC0, 2, 6, PIN_PA20F_TCC0_WO6, MUX_PA20F_TCC0_WO6),
-  NO_TIMER,
-  SERCOM(SERCOM5, 2, PINMUX_PA20C_SERCOM5_PAD2),
-  SERCOM(SERCOM3, 2, PINMUX_PA20D_SERCOM3_PAD2));
-PIN(PA21, false, NO_ADC_INPUT,
-  TIMER(0, TCC0, 3, 7, PIN_PA21F_TCC0_WO7, MUX_PA21F_TCC0_WO7),
-  NO_TIMER,
-  SERCOM(SERCOM5, 3, PINMUX_PA21C_SERCOM5_PAD3),
-  SERCOM(SERCOM3, 3, PINMUX_PA21D_SERCOM3_PAD3));
-PIN(PA06, true, ADC_POSITIVE_INPUT_PIN6,
-  TIMER(0, TCC1, 0, 0, PIN_PA06E_TCC1_WO0, MUX_PA06E_TCC1_WO0),
-  NO_TIMER,
-  SERCOM(SERCOM0, 2, PINMUX_PA06D_SERCOM0_PAD2),
-  NO_SERCOM);
-PIN(PA07, true, ADC_POSITIVE_INPUT_PIN7,
-  TIMER(0, TCC1, 1, 1, PIN_PA07E_TCC1_WO1, MUX_PA07E_TCC1_WO1),
-  NO_TIMER,
-  SERCOM(SERCOM0, 3, PINMUX_PA07D_SERCOM0_PAD3),
-  NO_SERCOM);
-PIN(PA18, false, NO_ADC_INPUT,
-  TIMER(TC3, 0, 0, 0, PIN_PA18E_TC3_WO0, MUX_PA18E_TC3_WO0),
-  TIMER(0, TCC0, 2, 2, PIN_PA18F_TCC0_WO2, MUX_PA18F_TCC0_WO2),
-  SERCOM(SERCOM1, 2, PINMUX_PA18C_SERCOM1_PAD2),
-  SERCOM(SERCOM3, 2, PINMUX_PA18D_SERCOM3_PAD2));
-PIN(PA16, false, NO_ADC_INPUT,
-  TIMER(0, TCC2, 0, 0, PIN_PA16E_TCC2_WO0, MUX_PA16E_TCC2_WO0),
-  TIMER(0, TCC0, 2, 6, PIN_PA16F_TCC0_WO6, MUX_PA16F_TCC0_WO6),
-  SERCOM(SERCOM1, 0, PINMUX_PA16C_SERCOM1_PAD0),
-  SERCOM(SERCOM3, 0, PINMUX_PA16D_SERCOM3_PAD0));
-PIN(PA19, false, NO_ADC_INPUT,
-  TIMER(TC3, 0, 1, 1, PIN_PA19E_TC3_WO1, MUX_PA19E_TC3_WO1),
-  TIMER(0, TCC0, 3, 3, PIN_PA19F_TCC0_WO3, MUX_PA19F_TCC0_WO3),
-  SERCOM(SERCOM1, 3, PINMUX_PA19C_SERCOM1_PAD3),
-  SERCOM(SERCOM3, 3, PINMUX_PA19C_SERCOM1_PAD3));
-PIN(PA17, false, NO_ADC_INPUT,
-  TIMER(0, TCC2, 1, 1, PIN_PA17E_TCC2_WO1, MUX_PA17E_TCC2_WO1),
-  TIMER(0, TCC0, 3, 7, PIN_PA17F_TCC0_WO7, MUX_PA17F_TCC0_WO7),
-  SERCOM(SERCOM1, 1, PINMUX_PA17C_SERCOM1_PAD1),
-  SERCOM(SERCOM3, 1, PINMUX_PA17D_SERCOM3_PAD1));
-PIN(PA22, false, NO_ADC_INPUT,
-  TIMER(TC4, 0, 0, 0, PIN_PA22E_TC4_WO0, MUX_PA22E_TC4_WO0),
-  TIMER(0, TCC0, 0, 4, PIN_PA22F_TCC0_WO4, MUX_PA22F_TCC0_WO4),
-  SERCOM(SERCOM3, 0, PINMUX_PA22C_SERCOM3_PAD0),
-  SERCOM(SERCOM5, 0, PINMUX_PA22D_SERCOM5_PAD0));
-PIN(PA23, false, NO_ADC_INPUT,
-  TIMER(TC4, 0, 1, 1, PIN_PA23E_TC4_WO1, MUX_PA23E_TC4_WO1),
-  TIMER(0, TCC0, 1, 5, PIN_PA23F_TCC0_WO5, MUX_PA23F_TCC0_WO5),
-  SERCOM(SERCOM3, 1, PINMUX_PA23C_SERCOM3_PAD1),
-  SERCOM(SERCOM5, 1, PINMUX_PA23C_SERCOM3_PAD1));
-
-STATIC const mp_map_elem_t pin_cpu_pins_locals_dict_table[] = {
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA02), (mp_obj_t)&pin_PA02 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB08), (mp_obj_t)&pin_PB08 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB09), (mp_obj_t)&pin_PB09 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA04), (mp_obj_t)&pin_PA04 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA05), (mp_obj_t)&pin_PA05 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB02), (mp_obj_t)&pin_PB02 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA11), (mp_obj_t)&pin_PA11 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA10), (mp_obj_t)&pin_PA10 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA14), (mp_obj_t)&pin_PA14 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA09), (mp_obj_t)&pin_PA09 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA08), (mp_obj_t)&pin_PA08 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA15), (mp_obj_t)&pin_PA15 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA20), (mp_obj_t)&pin_PA20 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA21), (mp_obj_t)&pin_PA21 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA06), (mp_obj_t)&pin_PA06 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA07), (mp_obj_t)&pin_PA07 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA18), (mp_obj_t)&pin_PA18 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA16), (mp_obj_t)&pin_PA16 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA19), (mp_obj_t)&pin_PA19 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA17), (mp_obj_t)&pin_PA17 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA22), (mp_obj_t)&pin_PA22 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA23), (mp_obj_t)&pin_PA23 },
-};
-MP_DEFINE_CONST_DICT(pin_cpu_pins_locals_dict, pin_cpu_pins_locals_dict_table);
+#include "boards/samd21_pins.h"
 
 STATIC const mp_map_elem_t pin_board_pins_locals_dict_table[] = {
   { MP_OBJ_NEW_QSTR(MP_QSTR_A0), (mp_obj_t)&pin_PA02 },
diff --git a/atmel-samd/boards/arduino_zero/pins.h b/atmel-samd/boards/arduino_zero/pins.h
deleted file mode 100644
index 3964e089e..000000000
--- a/atmel-samd/boards/arduino_zero/pins.h
+++ /dev/null
@@ -1,28 +0,0 @@
-
-#ifndef __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_ARDUINO_ZERO_PINS_H__
-#define __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_ARDUINO_ZERO_PINS_H__
-
-#include "modmachine_pin.h"
-
-extern const pin_obj_t pin_PA02;
-extern const pin_obj_t pin_PB08;
-extern const pin_obj_t pin_PB09;
-extern const pin_obj_t pin_PA04;
-extern const pin_obj_t pin_PA05;
-extern const pin_obj_t pin_PB02;
-extern const pin_obj_t pin_PB11;
-extern const pin_obj_t pin_PB10;
-extern const pin_obj_t pin_PB21;
-extern const pin_obj_t pin_PA11;
-extern const pin_obj_t pin_PA10;
-extern const pin_obj_t pin_PA22;
-extern const pin_obj_t pin_PA23;
-extern const pin_obj_t pin_PA15;
-extern const pin_obj_t pin_PA20;
-extern const pin_obj_t pin_PA07;
-extern const pin_obj_t pin_PA18;
-extern const pin_obj_t pin_PA16;
-extern const pin_obj_t pin_PA19;
-extern const pin_obj_t pin_PA17;
-
-#endif  // __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_ARDUINO_ZERO_PINS_H__
diff --git a/atmel-samd/boards/feather_m0_adalogger/pins.c b/atmel-samd/boards/feather_m0_adalogger/pins.c
index b5521d81b..dd57b5710 100644
--- a/atmel-samd/boards/feather_m0_adalogger/pins.c
+++ b/atmel-samd/boards/feather_m0_adalogger/pins.c
@@ -1,133 +1,4 @@
-#include "pins.h"
-#include "asf/sam0/drivers/system/system.h"
-
-PIN(PA02, true, ADC_POSITIVE_INPUT_PIN0, NO_TIMER, NO_TIMER, NO_SERCOM, \
-  NO_SERCOM);
-PIN(PB08, true, ADC_POSITIVE_INPUT_PIN2,
-  TIMER(TC4, 0, 0, 0, PIN_PB08E_TC4_WO0, MUX_PB08E_TC4_WO0),
-  NO_TIMER,
-  SERCOM(SERCOM4, 0, PINMUX_PB08D_SERCOM4_PAD0),
-  NO_SERCOM);
-PIN(PB09, true, ADC_POSITIVE_INPUT_PIN3,
-  TIMER(TC4, 0, 1, 1, PIN_PB09E_TC4_WO1, MUX_PB09E_TC4_WO1),
-  NO_TIMER,
-  SERCOM(SERCOM4, 1, PINMUX_PB09D_SERCOM4_PAD1),
-  NO_SERCOM);
-PIN(PA04, true, ADC_POSITIVE_INPUT_PIN4,
-  TIMER(0, TCC0, 0, 0, PIN_PA04E_TCC0_WO0, MUX_PA04E_TCC0_WO0),
-  NO_TIMER,
-  SERCOM(SERCOM0, 0, PINMUX_PA04D_SERCOM0_PAD0),
-  NO_SERCOM);
-PIN(PA05, true, ADC_POSITIVE_INPUT_PIN5,
-  TIMER(0, TCC0, 1, 1, PIN_PA05E_TCC0_WO1, MUX_PA05E_TCC0_WO1),
-  NO_TIMER,
-  SERCOM(SERCOM0, 1, PINMUX_PA05D_SERCOM0_PAD1),
-  NO_SERCOM);
-PIN(PA08, false, NO_ADC_INPUT,
-  NO_TIMER,
-  NO_TIMER,
-  NO_SERCOM,
-  NO_SERCOM);
-PIN(PB02, true, ADC_POSITIVE_INPUT_PIN10,
-  NO_TIMER,
-  NO_TIMER,
-  SERCOM(SERCOM5, 0, PINMUX_PB02D_SERCOM5_PAD0),
-  NO_SERCOM);
-PIN(PB11, false, NO_ADC_INPUT,
-  TIMER(TC5, 0, 1, 1, PIN_PB11E_TC5_WO1, MUX_PB11E_TC5_WO1),
-  TIMER(0, TCC0, 1, 5, PIN_PB11F_TCC0_WO5, MUX_PB11F_TCC0_WO5),
-  SERCOM(SERCOM4, 3, PINMUX_PB11D_SERCOM4_PAD3),
-  NO_SERCOM);
-PIN(PB10, false, NO_ADC_INPUT,
-  TIMER(TC5, 0, 0, 0, PIN_PB10E_TC5_WO0, MUX_PB10E_TC5_WO0),
-  TIMER(0, TCC0, 0, 4, PIN_PB10F_TCC0_WO4, MUX_PB10F_TCC0_WO4),
-  SERCOM(SERCOM4, 2, PINMUX_PB10D_SERCOM4_PAD2),
-  NO_SERCOM);
-PIN(PA12, false, NO_ADC_INPUT,
-  TIMER(0, TCC2, 0, 0, PIN_PA12E_TCC2_WO0, MUX_PA12E_TCC2_WO0),
-  TIMER(0, TCC0, 2, 6, PIN_PA12F_TCC0_WO6, MUX_PA12F_TCC0_WO6),
-  SERCOM(SERCOM2, 0, PINMUX_PA12C_SERCOM2_PAD0),
-  SERCOM(SERCOM4, 0, PINMUX_PA12D_SERCOM4_PAD0));
-PIN(PA11, true, ADC_POSITIVE_INPUT_PIN19,
-  TIMER(0, TCC1, 1, 1, PIN_PA11E_TCC1_WO1, MUX_PA11E_TCC1_WO1),
-  TIMER(0, TCC0, 3, 3, PIN_PA11F_TCC0_WO3, MUX_PA11F_TCC0_WO3),
-  SERCOM(SERCOM0, 3, PINMUX_PA11C_SERCOM0_PAD3),
-  SERCOM(SERCOM2, 3, PINMUX_PA11D_SERCOM2_PAD3));
-PIN(PA10, true, ADC_POSITIVE_INPUT_PIN18,
-  TIMER(0, TCC1, 0, 0, PIN_PA10E_TCC1_WO0, MUX_PA10E_TCC1_WO0),
-  TIMER(0, TCC0, 2, 2, PIN_PA10F_TCC0_WO2, MUX_PA10F_TCC0_WO2),
-  SERCOM(SERCOM0, 2, PINMUX_PA10C_SERCOM0_PAD2),
-  SERCOM(SERCOM2, 2, PINMUX_PA10D_SERCOM2_PAD2));
-PIN(PA22, false, NO_ADC_INPUT,
-  TIMER(TC4, 0, 0, 0, PIN_PA22E_TC4_WO0, MUX_PA22E_TC4_WO0),
-  TIMER(0, TCC0, 0, 4, PIN_PA22F_TCC0_WO4, MUX_PA22F_TCC0_WO4),
-  SERCOM(SERCOM3, 0, PINMUX_PA22C_SERCOM3_PAD0),
-  SERCOM(SERCOM5, 0, PINMUX_PA22D_SERCOM5_PAD0));
-PIN(PA23, false, NO_ADC_INPUT,
-  TIMER(TC4, 0, 1, 1, PIN_PA23E_TC4_WO1, MUX_PA23E_TC4_WO1),
-  TIMER(0, TCC0, 1, 5, PIN_PA23F_TCC0_WO5, MUX_PA23F_TCC0_WO5),
-  SERCOM(SERCOM3, 1, PINMUX_PA23C_SERCOM3_PAD1),
-  SERCOM(SERCOM5, 1, PINMUX_PA23C_SERCOM3_PAD1));
-PIN(PA15, false, NO_ADC_INPUT,
-  TIMER(TC3, 0, 1, 1, PIN_PA15E_TC3_WO1, MUX_PA15E_TC3_WO1),
-  TIMER(0, TCC0, 1, 5, PIN_PA15F_TCC0_WO5, MUX_PA15F_TCC0_WO5),
-  SERCOM(SERCOM2, 3, PINMUX_PA15C_SERCOM2_PAD3),
-  SERCOM(SERCOM4, 3, PINMUX_PA15D_SERCOM4_PAD3));
-PIN(PA20, false, NO_ADC_INPUT,
-  TIMER(0, TCC0, 2, 6, PIN_PA20F_TCC0_WO6, MUX_PA20F_TCC0_WO6),
-  NO_TIMER,
-  SERCOM(SERCOM5, 2, PINMUX_PA20C_SERCOM5_PAD2),
-  SERCOM(SERCOM3, 2, PINMUX_PA20D_SERCOM3_PAD2));
-PIN(PA07, true, ADC_POSITIVE_INPUT_PIN7,
-  TIMER(0, TCC1, 1, 1, PIN_PA07E_TCC1_WO1, MUX_PA07E_TCC1_WO1),
-  NO_TIMER,
-  SERCOM(SERCOM0, 3, PINMUX_PA07D_SERCOM0_PAD3),
-  NO_SERCOM);
-PIN(PA18, false, NO_ADC_INPUT,
-  TIMER(TC3, 0, 0, 0, PIN_PA18E_TC3_WO0, MUX_PA18E_TC3_WO0),
-  TIMER(0, TCC0, 2, 2, PIN_PA18F_TCC0_WO2, MUX_PA18F_TCC0_WO2),
-  SERCOM(SERCOM1, 2, PINMUX_PA18C_SERCOM1_PAD2),
-  SERCOM(SERCOM3, 2, PINMUX_PA18D_SERCOM3_PAD2));
-PIN(PA16, false, NO_ADC_INPUT,
-  TIMER(0, TCC2, 0, 0, PIN_PA16E_TCC2_WO0, MUX_PA16E_TCC2_WO0),
-  TIMER(0, TCC0, 2, 6, PIN_PA16F_TCC0_WO6, MUX_PA16F_TCC0_WO6),
-  SERCOM(SERCOM1, 0, PINMUX_PA16C_SERCOM1_PAD0),
-  SERCOM(SERCOM3, 0, PINMUX_PA16D_SERCOM3_PAD0));
-PIN(PA19, false, NO_ADC_INPUT,
-  TIMER(TC3, 0, 1, 1, PIN_PA19E_TC3_WO1, MUX_PA19E_TC3_WO1),
-  TIMER(0, TCC0, 3, 3, PIN_PA19F_TCC0_WO3, MUX_PA19F_TCC0_WO3),
-  SERCOM(SERCOM1, 3, PINMUX_PA19C_SERCOM1_PAD3),
-  SERCOM(SERCOM3, 3, PINMUX_PA19C_SERCOM1_PAD3));
-PIN(PA17, false, NO_ADC_INPUT,
-  TIMER(0, TCC2, 1, 1, PIN_PA17E_TCC2_WO1, MUX_PA17E_TCC2_WO1),
-  TIMER(0, TCC0, 3, 7, PIN_PA17F_TCC0_WO7, MUX_PA17F_TCC0_WO7),
-  SERCOM(SERCOM1, 1, PINMUX_PA17C_SERCOM1_PAD1),
-  SERCOM(SERCOM3, 1, PINMUX_PA17D_SERCOM3_PAD1));
-
-STATIC const mp_map_elem_t pin_cpu_pins_locals_dict_table[] = {
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA02), (mp_obj_t)&pin_PA02 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB08), (mp_obj_t)&pin_PB08 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB09), (mp_obj_t)&pin_PB09 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA04), (mp_obj_t)&pin_PA04 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA05), (mp_obj_t)&pin_PA05 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA05), (mp_obj_t)&pin_PA08 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB02), (mp_obj_t)&pin_PB02 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB11), (mp_obj_t)&pin_PB11 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB10), (mp_obj_t)&pin_PB10 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA12), (mp_obj_t)&pin_PA12 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA11), (mp_obj_t)&pin_PA11 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA10), (mp_obj_t)&pin_PA10 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA22), (mp_obj_t)&pin_PA22 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA23), (mp_obj_t)&pin_PA23 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA15), (mp_obj_t)&pin_PA15 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA20), (mp_obj_t)&pin_PA20 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA07), (mp_obj_t)&pin_PA07 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA18), (mp_obj_t)&pin_PA18 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA16), (mp_obj_t)&pin_PA16 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA19), (mp_obj_t)&pin_PA19 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA17), (mp_obj_t)&pin_PA17 },
-};
-MP_DEFINE_CONST_DICT(pin_cpu_pins_locals_dict, pin_cpu_pins_locals_dict_table);
+#include "boards/samd21_pins.h"
 
 STATIC const mp_map_elem_t pin_board_pins_locals_dict_table[] = {
   { MP_OBJ_NEW_QSTR(MP_QSTR_A0), (mp_obj_t)&pin_PA02 },
diff --git a/atmel-samd/boards/feather_m0_adalogger/pins.h b/atmel-samd/boards/feather_m0_adalogger/pins.h
deleted file mode 100644
index 7e499686f..000000000
--- a/atmel-samd/boards/feather_m0_adalogger/pins.h
+++ /dev/null
@@ -1,28 +0,0 @@
-
-#ifndef __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_FEATHER_M0_ADALOGGER_PINS_H__
-#define __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_FEATHER_M0_ADALOGGER_PINS_H__
-
-#include "modmachine_pin.h"
-
-extern const pin_obj_t pin_PA02;
-extern const pin_obj_t pin_PB08;
-extern const pin_obj_t pin_PB09;
-extern const pin_obj_t pin_PA04;
-extern const pin_obj_t pin_PA05;
-extern const pin_obj_t pin_PB02;
-extern const pin_obj_t pin_PB11;
-extern const pin_obj_t pin_PB10;
-extern const pin_obj_t pin_PB21;
-extern const pin_obj_t pin_PA11;
-extern const pin_obj_t pin_PA10;
-extern const pin_obj_t pin_PA22;
-extern const pin_obj_t pin_PA23;
-extern const pin_obj_t pin_PA15;
-extern const pin_obj_t pin_PA20;
-extern const pin_obj_t pin_PA07;
-extern const pin_obj_t pin_PA18;
-extern const pin_obj_t pin_PA16;
-extern const pin_obj_t pin_PA19;
-extern const pin_obj_t pin_PA17;
-
-#endif  // __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_FEATHER_M0_BASIC_PINS_H__
diff --git a/atmel-samd/boards/feather_m0_basic/pins.c b/atmel-samd/boards/feather_m0_basic/pins.c
index f86f20713..b482e53f2 100644
--- a/atmel-samd/boards/feather_m0_basic/pins.c
+++ b/atmel-samd/boards/feather_m0_basic/pins.c
@@ -1,127 +1,4 @@
-#include "pins.h"
-#include "asf/sam0/drivers/system/system.h"
-
-PIN(PA02, true, ADC_POSITIVE_INPUT_PIN0, NO_TIMER, NO_TIMER, NO_SERCOM, \
-  NO_SERCOM);
-PIN(PB08, true, ADC_POSITIVE_INPUT_PIN2,
-  TIMER(TC4, 0, 0, 0, PIN_PB08E_TC4_WO0, MUX_PB08E_TC4_WO0),
-  NO_TIMER,
-  SERCOM(SERCOM4, 0, PINMUX_PB08D_SERCOM4_PAD0),
-  NO_SERCOM);
-PIN(PB09, true, ADC_POSITIVE_INPUT_PIN3,
-  TIMER(TC4, 0, 1, 1, PIN_PB09E_TC4_WO1, MUX_PB09E_TC4_WO1),
-  NO_TIMER,
-  SERCOM(SERCOM4, 1, PINMUX_PB09D_SERCOM4_PAD1),
-  NO_SERCOM);
-PIN(PA04, true, ADC_POSITIVE_INPUT_PIN4,
-  TIMER(0, TCC0, 0, 0, PIN_PA04E_TCC0_WO0, MUX_PA04E_TCC0_WO0),
-  NO_TIMER,
-  SERCOM(SERCOM0, 0, PINMUX_PA04D_SERCOM0_PAD0),
-  NO_SERCOM);
-PIN(PA05, true, ADC_POSITIVE_INPUT_PIN5,
-  TIMER(0, TCC0, 1, 1, PIN_PA05E_TCC0_WO1, MUX_PA05E_TCC0_WO1),
-  NO_TIMER,
-  SERCOM(SERCOM0, 1, PINMUX_PA05D_SERCOM0_PAD1),
-  NO_SERCOM);
-PIN(PB02, true, ADC_POSITIVE_INPUT_PIN10,
-  NO_TIMER,
-  NO_TIMER,
-  SERCOM(SERCOM5, 0, PINMUX_PB02D_SERCOM5_PAD0),
-  NO_SERCOM);
-PIN(PB11, false, NO_ADC_INPUT,
-  TIMER(TC5, 0, 1, 1, PIN_PB11E_TC5_WO1, MUX_PB11E_TC5_WO1),
-  TIMER(0, TCC0, 1, 5, PIN_PB11F_TCC0_WO5, MUX_PB11F_TCC0_WO5),
-  SERCOM(SERCOM4, 3, PINMUX_PB11D_SERCOM4_PAD3),
-  NO_SERCOM);
-PIN(PB10, false, NO_ADC_INPUT,
-  TIMER(TC5, 0, 0, 0, PIN_PB10E_TC5_WO0, MUX_PB10E_TC5_WO0),
-  TIMER(0, TCC0, 0, 4, PIN_PB10F_TCC0_WO4, MUX_PB10F_TCC0_WO4),
-  SERCOM(SERCOM4, 2, PINMUX_PB10D_SERCOM4_PAD2),
-  NO_SERCOM);
-PIN(PA12, false, NO_ADC_INPUT,
-  TIMER(0, TCC2, 0, 0, PIN_PA12E_TCC2_WO0, MUX_PA12E_TCC2_WO0),
-  TIMER(0, TCC0, 2, 6, PIN_PA12F_TCC0_WO6, MUX_PA12F_TCC0_WO6),
-  SERCOM(SERCOM2, 0, PINMUX_PA12C_SERCOM2_PAD0),
-  SERCOM(SERCOM4, 0, PINMUX_PA12D_SERCOM4_PAD0));
-PIN(PA11, true, ADC_POSITIVE_INPUT_PIN19,
-  TIMER(0, TCC1, 1, 1, PIN_PA11E_TCC1_WO1, MUX_PA11E_TCC1_WO1),
-  TIMER(0, TCC0, 3, 3, PIN_PA11F_TCC0_WO3, MUX_PA11F_TCC0_WO3),
-  SERCOM(SERCOM0, 3, PINMUX_PA11C_SERCOM0_PAD3),
-  SERCOM(SERCOM2, 3, PINMUX_PA11D_SERCOM2_PAD3));
-PIN(PA10, true, ADC_POSITIVE_INPUT_PIN18,
-  TIMER(0, TCC1, 0, 0, PIN_PA10E_TCC1_WO0, MUX_PA10E_TCC1_WO0),
-  TIMER(0, TCC0, 2, 2, PIN_PA10F_TCC0_WO2, MUX_PA10F_TCC0_WO2),
-  SERCOM(SERCOM0, 2, PINMUX_PA10C_SERCOM0_PAD2),
-  SERCOM(SERCOM2, 2, PINMUX_PA10D_SERCOM2_PAD2));
-PIN(PA22, false, NO_ADC_INPUT,
-  TIMER(TC4, 0, 0, 0, PIN_PA22E_TC4_WO0, MUX_PA22E_TC4_WO0),
-  TIMER(0, TCC0, 0, 4, PIN_PA22F_TCC0_WO4, MUX_PA22F_TCC0_WO4),
-  SERCOM(SERCOM3, 0, PINMUX_PA22C_SERCOM3_PAD0),
-  SERCOM(SERCOM5, 0, PINMUX_PA22D_SERCOM5_PAD0));
-PIN(PA23, false, NO_ADC_INPUT,
-  TIMER(TC4, 0, 1, 1, PIN_PA23E_TC4_WO1, MUX_PA23E_TC4_WO1),
-  TIMER(0, TCC0, 1, 5, PIN_PA23F_TCC0_WO5, MUX_PA23F_TCC0_WO5),
-  SERCOM(SERCOM3, 1, PINMUX_PA23C_SERCOM3_PAD1),
-  SERCOM(SERCOM5, 1, PINMUX_PA23C_SERCOM3_PAD1));
-PIN(PA15, false, NO_ADC_INPUT,
-  TIMER(TC3, 0, 1, 1, PIN_PA15E_TC3_WO1, MUX_PA15E_TC3_WO1),
-  TIMER(0, TCC0, 1, 5, PIN_PA15F_TCC0_WO5, MUX_PA15F_TCC0_WO5),
-  SERCOM(SERCOM2, 3, PINMUX_PA15C_SERCOM2_PAD3),
-  SERCOM(SERCOM4, 3, PINMUX_PA15D_SERCOM4_PAD3));
-PIN(PA20, false, NO_ADC_INPUT,
-  TIMER(0, TCC0, 2, 6, PIN_PA20F_TCC0_WO6, MUX_PA20F_TCC0_WO6),
-  NO_TIMER,
-  SERCOM(SERCOM5, 2, PINMUX_PA20C_SERCOM5_PAD2),
-  SERCOM(SERCOM3, 2, PINMUX_PA20D_SERCOM3_PAD2));
-PIN(PA07, true, ADC_POSITIVE_INPUT_PIN7,
-  TIMER(0, TCC1, 1, 1, PIN_PA07E_TCC1_WO1, MUX_PA07E_TCC1_WO1),
-  NO_TIMER,
-  SERCOM(SERCOM0, 3, PINMUX_PA07D_SERCOM0_PAD3),
-  NO_SERCOM);
-PIN(PA18, false, NO_ADC_INPUT,
-  TIMER(TC3, 0, 0, 0, PIN_PA18E_TC3_WO0, MUX_PA18E_TC3_WO0),
-  TIMER(0, TCC0, 2, 2, PIN_PA18F_TCC0_WO2, MUX_PA18F_TCC0_WO2),
-  SERCOM(SERCOM1, 2, PINMUX_PA18C_SERCOM1_PAD2),
-  SERCOM(SERCOM3, 2, PINMUX_PA18D_SERCOM3_PAD2));
-PIN(PA16, false, NO_ADC_INPUT,
-  TIMER(0, TCC2, 0, 0, PIN_PA16E_TCC2_WO0, MUX_PA16E_TCC2_WO0),
-  TIMER(0, TCC0, 2, 6, PIN_PA16F_TCC0_WO6, MUX_PA16F_TCC0_WO6),
-  SERCOM(SERCOM1, 0, PINMUX_PA16C_SERCOM1_PAD0),
-  SERCOM(SERCOM3, 0, PINMUX_PA16D_SERCOM3_PAD0));
-PIN(PA19, false, NO_ADC_INPUT,
-  TIMER(TC3, 0, 1, 1, PIN_PA19E_TC3_WO1, MUX_PA19E_TC3_WO1),
-  TIMER(0, TCC0, 3, 3, PIN_PA19F_TCC0_WO3, MUX_PA19F_TCC0_WO3),
-  SERCOM(SERCOM1, 3, PINMUX_PA19C_SERCOM1_PAD3),
-  SERCOM(SERCOM3, 3, PINMUX_PA19C_SERCOM1_PAD3));
-PIN(PA17, false, NO_ADC_INPUT,
-  TIMER(0, TCC2, 1, 1, PIN_PA17E_TCC2_WO1, MUX_PA17E_TCC2_WO1),
-  TIMER(0, TCC0, 3, 7, PIN_PA17F_TCC0_WO7, MUX_PA17F_TCC0_WO7),
-  SERCOM(SERCOM1, 1, PINMUX_PA17C_SERCOM1_PAD1),
-  SERCOM(SERCOM3, 1, PINMUX_PA17D_SERCOM3_PAD1));
-
-STATIC const mp_map_elem_t pin_cpu_pins_locals_dict_table[] = {
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA02), (mp_obj_t)&pin_PA02 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB08), (mp_obj_t)&pin_PB08 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB09), (mp_obj_t)&pin_PB09 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA04), (mp_obj_t)&pin_PA04 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA05), (mp_obj_t)&pin_PA05 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB02), (mp_obj_t)&pin_PB02 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB11), (mp_obj_t)&pin_PB11 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB10), (mp_obj_t)&pin_PB10 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA12), (mp_obj_t)&pin_PA12 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA11), (mp_obj_t)&pin_PA11 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA10), (mp_obj_t)&pin_PA10 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA22), (mp_obj_t)&pin_PA22 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA23), (mp_obj_t)&pin_PA23 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA15), (mp_obj_t)&pin_PA15 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA20), (mp_obj_t)&pin_PA20 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA07), (mp_obj_t)&pin_PA07 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA18), (mp_obj_t)&pin_PA18 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA16), (mp_obj_t)&pin_PA16 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA19), (mp_obj_t)&pin_PA19 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA17), (mp_obj_t)&pin_PA17 },
-};
-MP_DEFINE_CONST_DICT(pin_cpu_pins_locals_dict, pin_cpu_pins_locals_dict_table);
+#include "boards/samd21_pins.h"
 
 STATIC const mp_map_elem_t pin_board_pins_locals_dict_table[] = {
   { MP_OBJ_NEW_QSTR(MP_QSTR_A0), (mp_obj_t)&pin_PA02 },
diff --git a/atmel-samd/boards/feather_m0_basic/pins.h b/atmel-samd/boards/feather_m0_basic/pins.h
deleted file mode 100644
index 0ca9d1f5a..000000000
--- a/atmel-samd/boards/feather_m0_basic/pins.h
+++ /dev/null
@@ -1,28 +0,0 @@
-
-#ifndef __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_FEATHER_M0_BASIC_PINS_H__
-#define __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_FEATHER_M0_BASIC_PINS_H__
-
-#include "modmachine_pin.h"
-
-extern const pin_obj_t pin_PA02;
-extern const pin_obj_t pin_PB08;
-extern const pin_obj_t pin_PB09;
-extern const pin_obj_t pin_PA04;
-extern const pin_obj_t pin_PA05;
-extern const pin_obj_t pin_PB02;
-extern const pin_obj_t pin_PB11;
-extern const pin_obj_t pin_PB10;
-extern const pin_obj_t pin_PB21;
-extern const pin_obj_t pin_PA11;
-extern const pin_obj_t pin_PA10;
-extern const pin_obj_t pin_PA22;
-extern const pin_obj_t pin_PA23;
-extern const pin_obj_t pin_PA15;
-extern const pin_obj_t pin_PA20;
-extern const pin_obj_t pin_PA07;
-extern const pin_obj_t pin_PA18;
-extern const pin_obj_t pin_PA16;
-extern const pin_obj_t pin_PA19;
-extern const pin_obj_t pin_PA17;
-
-#endif  // __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_FEATHER_M0_BASIC_PINS_H__
diff --git a/atmel-samd/boards/metro_m0_flash/pins.c b/atmel-samd/boards/metro_m0_flash/pins.c
index 143abba17..0fb0815d2 100644
--- a/atmel-samd/boards/metro_m0_flash/pins.c
+++ b/atmel-samd/boards/metro_m0_flash/pins.c
@@ -1,163 +1,4 @@
-#include "pins.h"
-#include "asf/sam0/drivers/system/system.h"
-
-PIN(PA02, true, ADC_POSITIVE_INPUT_PIN0, NO_TIMER, NO_TIMER, NO_SERCOM,
-    NO_SERCOM);
-PIN(PB08, true, ADC_POSITIVE_INPUT_PIN2,
-  TIMER(TC4, 0, 0, 0, PIN_PB08E_TC4_WO0, MUX_PB08E_TC4_WO0),
-  NO_TIMER,
-  SERCOM(SERCOM4, 0, PINMUX_PB08D_SERCOM4_PAD0),
-  NO_SERCOM);
-PIN(PB09, true, ADC_POSITIVE_INPUT_PIN3,
-  TIMER(TC4, 0, 1, 1, PIN_PB09E_TC4_WO1, MUX_PB09E_TC4_WO1),
-  NO_TIMER,
-  SERCOM(SERCOM4, 1, PINMUX_PB09D_SERCOM4_PAD1),
-  NO_SERCOM);
-PIN(PA04, true, ADC_POSITIVE_INPUT_PIN4,
-  TIMER(0, TCC0, 0, 0, PIN_PA04E_TCC0_WO0, MUX_PA04E_TCC0_WO0),
-  NO_TIMER,
-  SERCOM(SERCOM0, 0, PINMUX_PA04D_SERCOM0_PAD0),
-  NO_SERCOM);
-PIN(PA05, true, ADC_POSITIVE_INPUT_PIN5,
-  TIMER(0, TCC0, 1, 1, PIN_PA05E_TCC0_WO1, MUX_PA05E_TCC0_WO1),
-  NO_TIMER,
-  SERCOM(SERCOM0, 1, PINMUX_PA05D_SERCOM0_PAD1),
-  NO_SERCOM);
-PIN(PB02, true, ADC_POSITIVE_INPUT_PIN10,
-  NO_TIMER,
-  NO_TIMER,
-  SERCOM(SERCOM5, 0, PINMUX_PB02D_SERCOM5_PAD0),
-  NO_SERCOM);
-PIN(PA11, true, ADC_POSITIVE_INPUT_PIN19,
-  TIMER(0, TCC1, 1, 1, PIN_PA11E_TCC1_WO1, MUX_PA11E_TCC1_WO1),
-  TIMER(0, TCC0, 3, 3, PIN_PA11F_TCC0_WO3, MUX_PA11F_TCC0_WO3),
-  SERCOM(SERCOM0, 3, PINMUX_PA11C_SERCOM0_PAD3),
-  SERCOM(SERCOM2, 3, PINMUX_PA11D_SERCOM2_PAD3));
-PIN(PA10, true, ADC_POSITIVE_INPUT_PIN18,
-  TIMER(0, TCC1, 0, 0, PIN_PA10E_TCC1_WO0, MUX_PA10E_TCC1_WO0),
-  TIMER(0, TCC0, 2, 2, PIN_PA10F_TCC0_WO2, MUX_PA10F_TCC0_WO2),
-  SERCOM(SERCOM0, 2, PINMUX_PA10C_SERCOM0_PAD2),
-  SERCOM(SERCOM2, 2, PINMUX_PA10D_SERCOM2_PAD2));
-PIN(PA14, false, NO_ADC_INPUT,
-  TIMER(TC3, 0, 0, 0, PIN_PA14E_TC3_WO0, MUX_PA14E_TC3_WO0),
-  TIMER(0, TCC0, 0, 4, PIN_PA14F_TCC0_WO4, MUX_PA14F_TCC0_WO4),
-  SERCOM(SERCOM2, 2, PINMUX_PA14C_SERCOM2_PAD2),
-  SERCOM(SERCOM4, 2, PINMUX_PA14D_SERCOM4_PAD2));
-PIN(PA09, true, ADC_POSITIVE_INPUT_PIN17,
-  TIMER(0, TCC0, 1, 1, PIN_PA09E_TCC0_WO1, MUX_PA09E_TCC0_WO1),
-  TIMER(0, TCC1, 3, 3, PIN_PA09F_TCC1_WO3, MUX_PA09F_TCC1_WO3),
-  SERCOM(SERCOM0, 1, PINMUX_PA09C_SERCOM0_PAD1),
-  SERCOM(SERCOM2, 1, PINMUX_PA09D_SERCOM2_PAD1));
-PIN(PA08, true, ADC_POSITIVE_INPUT_PIN16,
-  TIMER(0, TCC0, 0, 0, PIN_PA08E_TCC0_WO0, MUX_PA08E_TCC0_WO0),
-  TIMER(0, TCC1, 2, 2, PIN_PA08F_TCC1_WO2, MUX_PA08F_TCC1_WO2),
-  SERCOM(SERCOM0, 0, PINMUX_PA08C_SERCOM0_PAD0),
-  SERCOM(SERCOM2, 0, PINMUX_PA08D_SERCOM2_PAD0));
-PIN(PA15, false, NO_ADC_INPUT,
-  TIMER(TC3, 0, 1, 1, PIN_PA15E_TC3_WO1, MUX_PA15E_TC3_WO1),
-  TIMER(0, TCC0, 1, 5, PIN_PA15F_TCC0_WO5, MUX_PA15F_TCC0_WO5),
-  SERCOM(SERCOM2, 3, PINMUX_PA15C_SERCOM2_PAD3),
-  SERCOM(SERCOM4, 3, PINMUX_PA15D_SERCOM4_PAD3));
-PIN(PA20, false, NO_ADC_INPUT,
-  TIMER(0, TCC0, 2, 6, PIN_PA20F_TCC0_WO6, MUX_PA20F_TCC0_WO6),
-  NO_TIMER,
-  SERCOM(SERCOM5, 2, PINMUX_PA20C_SERCOM5_PAD2),
-  SERCOM(SERCOM3, 2, PINMUX_PA20D_SERCOM3_PAD2));
-PIN(PA21, false, NO_ADC_INPUT,
-  TIMER(0, TCC0, 3, 7, PIN_PA21F_TCC0_WO7, MUX_PA21F_TCC0_WO7),
-  NO_TIMER,
-  SERCOM(SERCOM5, 3, PINMUX_PA21C_SERCOM5_PAD3),
-  SERCOM(SERCOM3, 3, PINMUX_PA21D_SERCOM3_PAD3));
-PIN(PA06, true, ADC_POSITIVE_INPUT_PIN6,
-  TIMER(0, TCC1, 0, 0, PIN_PA06E_TCC1_WO0, MUX_PA06E_TCC1_WO0),
-  NO_TIMER,
-  SERCOM(SERCOM0, 2, PINMUX_PA06D_SERCOM0_PAD2),
-  NO_SERCOM);
-PIN(PA07, true, ADC_POSITIVE_INPUT_PIN7,
-  TIMER(0, TCC1, 1, 1, PIN_PA07E_TCC1_WO1, MUX_PA07E_TCC1_WO1),
-  NO_TIMER,
-  SERCOM(SERCOM0, 3, PINMUX_PA07D_SERCOM0_PAD3),
-  NO_SERCOM);
-PIN(PA18, false, NO_ADC_INPUT,
-  TIMER(TC3, 0, 0, 0, PIN_PA18E_TC3_WO0, MUX_PA18E_TC3_WO0),
-  TIMER(0, TCC0, 2, 2, PIN_PA18F_TCC0_WO2, MUX_PA18F_TCC0_WO2),
-  SERCOM(SERCOM1, 2, PINMUX_PA18C_SERCOM1_PAD2),
-  SERCOM(SERCOM3, 2, PINMUX_PA18D_SERCOM3_PAD2));
-PIN(PA16, false, NO_ADC_INPUT,
-  TIMER(0, TCC2, 0, 0, PIN_PA16E_TCC2_WO0, MUX_PA16E_TCC2_WO0),
-  TIMER(0, TCC0, 2, 6, PIN_PA16F_TCC0_WO6, MUX_PA16F_TCC0_WO6),
-  SERCOM(SERCOM1, 0, PINMUX_PA16C_SERCOM1_PAD0),
-  SERCOM(SERCOM3, 0, PINMUX_PA16D_SERCOM3_PAD0));
-PIN(PA19, false, NO_ADC_INPUT,
-  TIMER(TC3, 0, 1, 1, PIN_PA19E_TC3_WO1, MUX_PA19E_TC3_WO1),
-  TIMER(0, TCC0, 3, 3, PIN_PA19F_TCC0_WO3, MUX_PA19F_TCC0_WO3),
-  SERCOM(SERCOM1, 3, PINMUX_PA19C_SERCOM1_PAD3),
-  SERCOM(SERCOM3, 3, PINMUX_PA19D_SERCOM3_PAD3));
-PIN(PA17, false, NO_ADC_INPUT,
-  TIMER(0, TCC2, 1, 1, PIN_PA17E_TCC2_WO1, MUX_PA17E_TCC2_WO1),
-  TIMER(0, TCC0, 3, 7, PIN_PA17F_TCC0_WO7, MUX_PA17F_TCC0_WO7),
-  SERCOM(SERCOM1, 1, PINMUX_PA17C_SERCOM1_PAD1),
-  SERCOM(SERCOM3, 1, PINMUX_PA17D_SERCOM3_PAD1));
-PIN(PA22, false, NO_ADC_INPUT,
-  TIMER(TC4, 0, 0, 0, PIN_PA22E_TC4_WO0, MUX_PA22E_TC4_WO0),
-  TIMER(0, TCC0, 0, 4, PIN_PA22F_TCC0_WO4, MUX_PA22F_TCC0_WO4),
-  SERCOM(SERCOM3, 0, PINMUX_PA22C_SERCOM3_PAD0),
-  SERCOM(SERCOM5, 0, PINMUX_PA22D_SERCOM5_PAD0));
-PIN(PA23, false, NO_ADC_INPUT,
-  TIMER(TC4, 0, 1, 1, PIN_PA23E_TC4_WO1, MUX_PA23E_TC4_WO1),
-  TIMER(0, TCC0, 1, 5, PIN_PA23F_TCC0_WO5, MUX_PA23F_TCC0_WO5),
-  SERCOM(SERCOM3, 1, PINMUX_PA23C_SERCOM3_PAD1),
-  SERCOM(SERCOM5, 1, PINMUX_PA23C_SERCOM3_PAD1));
-PIN(PB11, false, NO_ADC_INPUT,
-  TIMER(TC5, 0, 1, 1, PIN_PB11E_TC5_WO1, MUX_PB11E_TC5_WO1),
-  TIMER(0, TCC0, 1, 5, PIN_PB11F_TCC0_WO5, MUX_PB11F_TCC0_WO5),
-  SERCOM(SERCOM4, 3, PINMUX_PB11D_SERCOM4_PAD3),
-  NO_SERCOM);
-PIN(PB10, false, NO_ADC_INPUT,
-  TIMER(TC5, 0, 0, 0, PIN_PA23E_TC4_WO1, MUX_PA23E_TC4_WO1),
-  TIMER(0, TCC0, 0, 4, PIN_PA23F_TCC0_WO5, MUX_PA23F_TCC0_WO5),
-  SERCOM(SERCOM4, 2, PINMUX_PB10D_SERCOM4_PAD2),
-  NO_SERCOM);
-PIN(PA12, false, NO_ADC_INPUT,
-  TIMER(0, TCC2, 0, 0, PIN_PA12E_TCC2_WO0, MUX_PA12E_TCC2_WO0),
-  TIMER(0, TCC0, 2, 6, PIN_PA12F_TCC0_WO6, MUX_PA12F_TCC0_WO6),
-  SERCOM(SERCOM4, 0, PINMUX_PA12D_SERCOM4_PAD0),
-  SERCOM(SERCOM2, 0, PINMUX_PA12C_SERCOM2_PAD0));
-PIN(PA13, false, NO_ADC_INPUT,
-  TIMER(0, TCC2, 1, 1, PIN_PA13E_TCC2_WO1, MUX_PA13E_TCC2_WO1),
-  TIMER(0, TCC0, 3, 7, PIN_PA13F_TCC0_WO7, MUX_PA13F_TCC0_WO7),
-  SERCOM(SERCOM4, 1, PINMUX_PA13D_SERCOM4_PAD1),
-  SERCOM(SERCOM2, 1, PINMUX_PA13C_SERCOM2_PAD1));
-
-STATIC const mp_map_elem_t pin_cpu_pins_locals_dict_table[] = {
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA02), (mp_obj_t)&pin_PA02 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB08), (mp_obj_t)&pin_PB08 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB09), (mp_obj_t)&pin_PB09 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA04), (mp_obj_t)&pin_PA04 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA05), (mp_obj_t)&pin_PA05 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB02), (mp_obj_t)&pin_PB02 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA11), (mp_obj_t)&pin_PA11 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA10), (mp_obj_t)&pin_PA10 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA14), (mp_obj_t)&pin_PA14 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA09), (mp_obj_t)&pin_PA09 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA08), (mp_obj_t)&pin_PA08 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA15), (mp_obj_t)&pin_PA15 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA20), (mp_obj_t)&pin_PA20 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA21), (mp_obj_t)&pin_PA21 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA06), (mp_obj_t)&pin_PA06 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA07), (mp_obj_t)&pin_PA07 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA18), (mp_obj_t)&pin_PA18 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA16), (mp_obj_t)&pin_PA16 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA19), (mp_obj_t)&pin_PA19 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA17), (mp_obj_t)&pin_PA17 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA22), (mp_obj_t)&pin_PA22 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA23), (mp_obj_t)&pin_PA23 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB11), (mp_obj_t)&pin_PB11 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PB10), (mp_obj_t)&pin_PB10 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA12), (mp_obj_t)&pin_PA12 },
-  { MP_OBJ_NEW_QSTR(MP_QSTR_PA13), (mp_obj_t)&pin_PA13 },
-};
-MP_DEFINE_CONST_DICT(pin_cpu_pins_locals_dict, pin_cpu_pins_locals_dict_table);
+#include "boards/samd21_pins.h"
 
 STATIC const mp_map_elem_t pin_board_pins_locals_dict_table[] = {
   { MP_OBJ_NEW_QSTR(MP_QSTR_A0), (mp_obj_t)&pin_PA02 },
diff --git a/atmel-samd/boards/metro_m0_flash/pins.h b/atmel-samd/boards/metro_m0_flash/pins.h
deleted file mode 100644
index 266026906..000000000
--- a/atmel-samd/boards/metro_m0_flash/pins.h
+++ /dev/null
@@ -1,32 +0,0 @@
-
-#ifndef __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_FEATHER_M0_BLE_PINS_H__
-#define __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_FEATHER_M0_BLE_PINS_H__
-
-#include "modmachine_pin.h"
-
-extern const pin_obj_t pin_PA02;
-extern const pin_obj_t pin_PB08;
-extern const pin_obj_t pin_PB09;
-extern const pin_obj_t pin_PA04;
-extern const pin_obj_t pin_PA05;
-extern const pin_obj_t pin_PB02;
-extern const pin_obj_t pin_PB11;
-extern const pin_obj_t pin_PB10;
-extern const pin_obj_t pin_PB21;
-extern const pin_obj_t pin_PA11;
-extern const pin_obj_t pin_PA10;
-extern const pin_obj_t pin_PA22;
-extern const pin_obj_t pin_PA23;
-extern const pin_obj_t pin_PA15;
-extern const pin_obj_t pin_PA20;
-extern const pin_obj_t pin_PA07;
-extern const pin_obj_t pin_PA18;
-extern const pin_obj_t pin_PA16;
-extern const pin_obj_t pin_PA19;
-extern const pin_obj_t pin_PA17;
-extern const pin_obj_t pin_PB11;
-extern const pin_obj_t pin_PB10;
-extern const pin_obj_t pin_PA12;
-extern const pin_obj_t pin_PA13;
-
-#endif  // __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_FEATHER_M0_BLE_PINS_H__
diff --git a/atmel-samd/boards/samd21_pins.c b/atmel-samd/boards/samd21_pins.c
new file mode 100644
index 000000000..c86d7df1f
--- /dev/null
+++ b/atmel-samd/boards/samd21_pins.c
@@ -0,0 +1,572 @@
+#include "boards/samd21_pins.h"
+
+// Pins in datasheet order.
+#ifdef PIN_PA00
+PIN(PA00, false, NO_ADC_INPUT, \
+    TIMER(0, TCC2, 0, 0, PIN_PA00E_TCC2_WO0, MUX_PA00E_TCC2_WO0),
+    NO_TIMER,
+    SERCOM(SERCOM1, 0, PINMUX_PA00D_SERCOM1_PAD0),
+    NO_SERCOM);
+#endif
+#ifdef PIN_PA01
+PIN(PA01, false, NO_ADC_INPUT,
+    TIMER(0, TCC2, 1, 1, PIN_PA01E_TCC2_WO1, MUX_PA01E_TCC2_WO1),
+    NO_TIMER,
+    SERCOM(SERCOM1, 1, PINMUX_PA01D_SERCOM1_PAD1),
+    NO_SERCOM);
+#endif
+#ifdef PIN_PA02
+PIN(PA02, true, ADC_POSITIVE_INPUT_PIN0,
+    NO_TIMER,
+    NO_TIMER,
+    NO_SERCOM,
+    NO_SERCOM);
+#endif
+#ifdef PIN_PA03
+PIN(PA03, true, ADC_POSITIVE_INPUT_PIN1,
+    NO_TIMER,
+    NO_TIMER,
+    NO_SERCOM,
+    NO_SERCOM);
+#endif
+#ifdef PIN_PB04
+PIN(PB04, true, ADC_POSITIVE_INPUT_PIN12,
+    NO_TIMER,
+    NO_TIMER,
+    NO_SERCOM,
+    NO_SERCOM);
+#endif
+#ifdef PIN_PB05
+PIN(PB05, true, ADC_POSITIVE_INPUT_PIN13,
+    NO_TIMER,
+    NO_TIMER,
+    NO_SERCOM,
+    NO_SERCOM);
+#endif
+#ifdef PIN_PB06
+PIN(PB06, true, ADC_POSITIVE_INPUT_PIN14,
+    NO_TIMER,
+    NO_TIMER,
+    NO_SERCOM,
+    NO_SERCOM);
+#endif
+#ifdef PIN_PB07
+PIN(PB07, true, ADC_POSITIVE_INPUT_PIN15,
+    NO_TIMER,
+    NO_TIMER,
+    NO_SERCOM,
+    NO_SERCOM);
+#endif
+#ifdef PIN_PB08
+PIN(PB08, true, ADC_POSITIVE_INPUT_PIN2,
+    TIMER(TC4, 0, 0, 0, PIN_PB08E_TC4_WO0, MUX_PB08E_TC4_WO0),
+    NO_TIMER,
+    NO_SERCOM,
+    SERCOM(SERCOM4, 0, PINMUX_PB08D_SERCOM4_PAD0));
+#endif
+#ifdef PIN_PB09
+PIN(PB09, true, ADC_POSITIVE_INPUT_PIN3,
+    TIMER(TC4, 0, 1, 1, PIN_PB09E_TC4_WO1, MUX_PB09E_TC4_WO1),
+    NO_TIMER,
+    NO_SERCOM,
+    SERCOM(SERCOM4, 1, PINMUX_PB09D_SERCOM4_PAD1));
+#endif
+#ifdef PIN_PA04
+PIN(PA04, true, ADC_POSITIVE_INPUT_PIN4,
+    TIMER(0, TCC0, 0, 0, PIN_PA04E_TCC0_WO0, MUX_PA04E_TCC0_WO0),
+    NO_TIMER,
+    NO_SERCOM,
+    SERCOM(SERCOM0, 0, PINMUX_PA04D_SERCOM0_PAD0));
+#endif
+#ifdef PIN_PA05
+PIN(PA05, true, ADC_POSITIVE_INPUT_PIN5,
+    TIMER(0, TCC0, 1, 1, PIN_PA05E_TCC0_WO1, MUX_PA05E_TCC0_WO1),
+    NO_TIMER,
+    NO_SERCOM,
+    SERCOM(SERCOM0, 1, PINMUX_PA05D_SERCOM0_PAD1));
+#endif
+#ifdef PIN_PA06
+PIN(PA06, true, ADC_POSITIVE_INPUT_PIN6,
+    TIMER(0, TCC1, 0, 0, PIN_PA06E_TCC1_WO0, MUX_PA06E_TCC1_WO0),
+    NO_TIMER,
+    SERCOM(SERCOM0, 2, PINMUX_PA06D_SERCOM0_PAD2),
+    NO_SERCOM);
+#endif
+#ifdef PIN_PA07
+PIN(PA07, true, ADC_POSITIVE_INPUT_PIN7,
+    TIMER(0, TCC1, 1, 1, PIN_PA07E_TCC1_WO1, MUX_PA07E_TCC1_WO1),
+    NO_TIMER,
+    SERCOM(SERCOM0, 3, PINMUX_PA07D_SERCOM0_PAD3),
+    NO_SERCOM);
+#endif
+#ifdef PIN_PA08
+PIN(PA08, true, ADC_POSITIVE_INPUT_PIN17,
+    TIMER(0, TCC0, 0, 0, PIN_PA08E_TCC0_WO0, MUX_PA08E_TCC0_WO0),
+    TIMER(0, TCC1, 2, 2, PIN_PA08F_TCC1_WO2, MUX_PA08F_TCC1_WO2),
+    SERCOM(SERCOM0, 0, PINMUX_PA08C_SERCOM0_PAD0),
+    SERCOM(SERCOM2, 0, PINMUX_PA08D_SERCOM2_PAD0));
+#endif
+#ifdef PIN_PA09
+PIN(PA09, true, ADC_POSITIVE_INPUT_PIN17,
+    TIMER(0, TCC0, 1, 1, PIN_PA09E_TCC0_WO1, MUX_PA09E_TCC0_WO1),
+    TIMER(0, TCC1, 3, 3, PIN_PA09F_TCC1_WO3, MUX_PA09F_TCC1_WO3),
+    SERCOM(SERCOM0, 1, PINMUX_PA09C_SERCOM0_PAD1),
+    SERCOM(SERCOM2, 1, PINMUX_PA09D_SERCOM2_PAD1));
+#endif
+#ifdef PIN_PA10
+PIN(PA10, true, ADC_POSITIVE_INPUT_PIN18,
+    TIMER(0, TCC1, 0, 0, PIN_PA10E_TCC1_WO0, MUX_PA10E_TCC1_WO0),
+    TIMER(0, TCC0, 2, 2, PIN_PA10F_TCC0_WO2, MUX_PA10F_TCC0_WO2),
+    SERCOM(SERCOM0, 2, PINMUX_PA10C_SERCOM0_PAD2),
+    SERCOM(SERCOM2, 2, PINMUX_PA10D_SERCOM2_PAD2));
+#endif
+#ifdef PIN_PA11
+PIN(PA11, true, ADC_POSITIVE_INPUT_PIN19,
+    TIMER(0, TCC1, 1, 1, PIN_PA11E_TCC1_WO1, MUX_PA11E_TCC1_WO1),
+    TIMER(0, TCC0, 3, 3, PIN_PA11F_TCC0_WO3, MUX_PA11F_TCC0_WO3),
+    SERCOM(SERCOM0, 3, PINMUX_PA11C_SERCOM0_PAD3),
+    SERCOM(SERCOM2, 3, PINMUX_PA11D_SERCOM2_PAD3));
+#endif
+#ifdef PIN_PB10
+PIN(PB10, false, NO_ADC_INPUT,
+    TIMER(TC5, 0, 0, 0, PIN_PB10E_TC5_WO0, MUX_PB10E_TC5_WO0),
+    TIMER(0, TCC0, 0, 4, PIN_PB10F_TCC0_WO4, MUX_PB10F_TCC0_WO4),
+    NO_SERCOM,
+    SERCOM(SERCOM4, 2, PINMUX_PB10D_SERCOM4_PAD2));
+#endif
+#ifdef PIN_PB11
+PIN(PB11, false, NO_ADC_INPUT,
+    TIMER(TC5, 0, 1, 1, PIN_PB11E_TC5_WO1, MUX_PB11E_TC5_WO1),
+    TIMER(0, TCC0, 1, 5, PIN_PB11F_TCC0_WO5, MUX_PB11F_TCC0_WO5),
+    NO_SERCOM,
+    SERCOM(SERCOM4, 3, PINMUX_PB11D_SERCOM4_PAD3));
+#endif
+#ifdef PIN_PB12
+PIN(PB12, false, NO_ADC_INPUT,
+    TIMER(TC4, 0, 0, 0, PIN_PB12E_TC4_WO0, MUX_PB12E_TC4_WO0),
+    TIMER(0, TCC0, 2, 6, PIN_PB12F_TCC0_WO6, MUX_PB12F_TCC0_WO6),
+    SERCOM(SERCOM4, 0, PINMUX_PB12C_SERCOM4_PAD0),
+    NO_SERCOM);
+#endif
+#ifdef PIN_PB13
+PIN(PB13, false, NO_ADC_INPUT,
+    TIMER(TC4, 0, 1, 1, PIN_PB13E_TC4_WO1, MUX_PB13E_TC4_WO1),
+    TIMER(0, TCC0, 3, 7, PIN_PB13F_TCC0_WO7, MUX_PB13F_TCC0_WO7),
+    SERCOM(SERCOM4, 1, PINMUX_PB13C_SERCOM4_PAD1),
+    NO_SERCOM);
+#endif
+#ifdef PIN_PB14
+PIN(PB14, false, NO_ADC_INPUT,
+    TIMER(TC5, 0, 0, 0, PIN_PB14E_TC5_WO0, MUX_PB14E_TC5_WO0),
+    NO_TIMER,
+    SERCOM(SERCOM4, 2, PINMUX_PB14C_SERCOM4_PAD2),
+    NO_SERCOM);
+#endif
+
+// Second page.
+#ifdef PIN_PB15
+PIN(PB15, false, NO_ADC_INPUT,
+    TIMER(TC5, 0, 1, 1, PIN_PB15E_TC5_WO1, MUX_PB15E_TC5_WO1),
+    NO_TIMER,
+    SERCOM(SERCOM4, 3, PINMUX_PB15C_SERCOM4_PAD3),
+    NO_SERCOM);
+#endif
+#ifdef PIN_PA12
+PIN(PA12, false, NO_ADC_INPUT,
+    TIMER(0, TCC2, 0, 0, PIN_PA12E_TCC2_WO0, MUX_PA12E_TCC2_WO0),
+    TIMER(0, TCC0, 2, 6, PIN_PA12F_TCC0_WO6, MUX_PA12F_TCC0_WO6),
+    SERCOM(SERCOM2, 0, PINMUX_PA12C_SERCOM2_PAD0),
+    SERCOM(SERCOM4, 0, PINMUX_PA12D_SERCOM4_PAD0));
+#endif
+#ifdef PIN_PA13
+PIN(PA13, false, NO_ADC_INPUT,
+    TIMER(0, TCC2, 1, 1, PIN_PA13E_TCC2_WO1, MUX_PA13E_TCC2_WO1),
+    TIMER(0, TCC0, 3, 7, PIN_PA13F_TCC0_WO7, MUX_PA13F_TCC0_WO7),
+    SERCOM(SERCOM2, 1, PINMUX_PA13C_SERCOM2_PAD1),
+    SERCOM(SERCOM4, 1, PINMUX_PA13D_SERCOM4_PAD1));
+#endif
+#ifdef PIN_PA14
+PIN(PA14, false, NO_ADC_INPUT,
+    TIMER(TC3, 0, 0, 0, PIN_PA14E_TC3_WO0, MUX_PA14E_TC3_WO0),
+    TIMER(0, TCC0, 0, 4, PIN_PA14F_TCC0_WO4, MUX_PA14F_TCC0_WO4),
+    SERCOM(SERCOM2, 2, PINMUX_PA14C_SERCOM2_PAD2),
+    SERCOM(SERCOM4, 2, PINMUX_PA14D_SERCOM4_PAD2));
+#endif
+#ifdef PIN_PA15
+PIN(PA15, false, NO_ADC_INPUT,
+    TIMER(TC3, 0, 1, 1, PIN_PA15E_TC3_WO1, MUX_PA15E_TC3_WO1),
+    TIMER(0, TCC0, 1, 5, PIN_PA15F_TCC0_WO5, MUX_PA15F_TCC0_WO5),
+    SERCOM(SERCOM2, 3, PINMUX_PA15C_SERCOM2_PAD3),
+    SERCOM(SERCOM4, 3, PINMUX_PA15D_SERCOM4_PAD3));
+#endif
+#ifdef PIN_PA16
+PIN(PA16, false, NO_ADC_INPUT,
+    TIMER(0, TCC2, 0, 0, PIN_PA16E_TCC2_WO0, MUX_PA16E_TCC2_WO0),
+    TIMER(0, TCC0, 2, 6, PIN_PA16F_TCC0_WO6, MUX_PA16F_TCC0_WO6),
+    SERCOM(SERCOM1, 0, PINMUX_PA16C_SERCOM1_PAD0),
+    SERCOM(SERCOM3, 0, PINMUX_PA16D_SERCOM3_PAD0));
+#endif
+#ifdef PIN_PA17
+PIN(PA17, false, NO_ADC_INPUT,
+  TIMER(0, TCC2, 1, 1, PIN_PA17E_TCC2_WO1, MUX_PA17E_TCC2_WO1),
+  TIMER(0, TCC0, 3, 7, PIN_PA17F_TCC0_WO7, MUX_PA17F_TCC0_WO7),
+  SERCOM(SERCOM1, 1, PINMUX_PA17C_SERCOM1_PAD1),
+  SERCOM(SERCOM3, 1, PINMUX_PA17D_SERCOM3_PAD1));
+#endif
+#ifdef PIN_PA18
+PIN(PA18, false, NO_ADC_INPUT,
+  TIMER(TC3, 0, 0, 0, PIN_PA18E_TC3_WO0, MUX_PA18E_TC3_WO0),
+  TIMER(0, TCC0, 2, 2, PIN_PA18F_TCC0_WO2, MUX_PA18F_TCC0_WO2),
+  SERCOM(SERCOM1, 2, PINMUX_PA18C_SERCOM1_PAD2),
+  SERCOM(SERCOM3, 2, PINMUX_PA18D_SERCOM3_PAD2));
+#endif
+#ifdef PIN_PA19
+PIN(PA19, false, NO_ADC_INPUT,
+  TIMER(TC3, 0, 1, 1, PIN_PA19E_TC3_WO1, MUX_PA19E_TC3_WO1),
+  TIMER(0, TCC0, 3, 3, PIN_PA19F_TCC0_WO3, MUX_PA19F_TCC0_WO3),
+  SERCOM(SERCOM1, 3, PINMUX_PA19C_SERCOM1_PAD3),
+  SERCOM(SERCOM3, 3, PINMUX_PA19C_SERCOM1_PAD3));
+#endif
+#ifdef PIN_PB16
+PIN(PB16, false, NO_ADC_INPUT,
+    #ifdef _SAMD21_TC6_INSTANCE_
+    TIMER(TC6, 0, 0, 0, PIN_PB16E_TC6_WO0, MUX_PB16E_TC6_WO0),
+    #else
+    NO_TIMER,
+    #endif
+    TIMER(0, TCC0, 0, 4, PIN_PB16F_TCC0_WO4, MUX_PB16F_TCC0_WO4),
+    SERCOM(SERCOM5, 0, PINMUX_PB16C_SERCOM5_PAD0),
+    NO_SERCOM);
+#endif
+#ifdef PIN_PB17
+PIN(PB17, false, NO_ADC_INPUT,
+    #ifdef _SAMD21_TC6_INSTANCE_
+    TIMER(TC6, 0, 0, 0, PIN_PB17E_TC6_WO1, MUX_PB17E_TC6_WO1),
+    #else
+    NO_TIMER,
+    #endif
+    TIMER(0, TCC0, 1, 5, PIN_PB17F_TCC0_WO5, MUX_PB17F_TCC0_WO5),
+    SERCOM(SERCOM5, 1, PINMUX_PB17C_SERCOM5_PAD1),
+    NO_SERCOM);
+#endif
+#ifdef PIN_PA20
+PIN(PA20, false, NO_ADC_INPUT,
+    #ifdef _SAMD21_TC7_INSTANCE_
+    TIMER(TC7, 0, 0, 0, PIN_PA20E_TC7_WO0, MUX_PA20E_TC7_WO0),
+    #else
+    NO_TIMER,
+    #endif
+    TIMER(0, TCC0, 2, 6, PIN_PA20F_TCC0_WO6, MUX_PA20F_TCC0_WO6),
+    SERCOM(SERCOM5, 2, PINMUX_PA20C_SERCOM5_PAD2),
+    SERCOM(SERCOM3, 2, PINMUX_PA20D_SERCOM3_PAD2));
+#endif
+#ifdef PIN_PA21
+PIN(PA21, false, NO_ADC_INPUT,
+    #ifdef _SAMD21_TC7_INSTANCE_
+    TIMER(TC7, 0, 1, 1, PIN_PA21E_TC7_WO1, MUX_PA21E_TC7_WO1),
+    #else
+    NO_TIMER,
+    #endif
+    TIMER(0, TCC0, 3, 7, PIN_PA21F_TCC0_WO7, MUX_PA21F_TCC0_WO7),
+    SERCOM(SERCOM5, 3, PINMUX_PA21C_SERCOM5_PAD3),
+    SERCOM(SERCOM3, 3, PINMUX_PA21D_SERCOM3_PAD3));
+#endif
+#ifdef PIN_PA22
+PIN(PA22, false, NO_ADC_INPUT,
+    TIMER(TC4, 0, 0, 0, PIN_PA22E_TC4_WO0, MUX_PA22E_TC4_WO0),
+    TIMER(0, TCC0, 0, 4, PIN_PA22F_TCC0_WO4, MUX_PA22F_TCC0_WO4),
+    SERCOM(SERCOM3, 0, PINMUX_PA22C_SERCOM3_PAD0),
+    SERCOM(SERCOM5, 0, PINMUX_PA22D_SERCOM5_PAD0));
+#endif
+#ifdef PIN_PA23
+PIN(PA23, false, NO_ADC_INPUT,
+    TIMER(TC4, 0, 1, 1, PIN_PA23E_TC4_WO1, MUX_PA23E_TC4_WO1),
+    TIMER(0, TCC0, 1, 5, PIN_PA23F_TCC0_WO5, MUX_PA23F_TCC0_WO5),
+    SERCOM(SERCOM3, 1, PINMUX_PA23C_SERCOM3_PAD1),
+    SERCOM(SERCOM5, 1, PINMUX_PA23D_SERCOM5_PAD1));
+#endif
+#ifdef PIN_PA24
+PIN(PA24, false, NO_ADC_INPUT,
+    TIMER(TC5, 0, 0, 0, PIN_PA24E_TC5_WO0, MUX_PA24E_TC5_WO0),
+    TIMER(0, TCC0, 2, 2, PIN_PA24F_TCC1_WO2, MUX_PA24F_TCC1_WO2),
+    SERCOM(SERCOM3, 2, PINMUX_PA24C_SERCOM3_PAD2),
+    SERCOM(SERCOM5, 2, PINMUX_PA24D_SERCOM5_PAD2));
+#endif
+#ifdef PIN_PA25
+PIN(PA25, false, NO_ADC_INPUT,
+    TIMER(TC5, 0, 1, 1, PIN_PA25E_TC5_WO1, MUX_PA25E_TC5_WO1),
+    TIMER(0, TCC1, 3, 3, PIN_PA25F_TCC1_WO3, MUX_PA25F_TCC1_WO3),
+    SERCOM(SERCOM3, 3, PINMUX_PA25C_SERCOM3_PAD3),
+    SERCOM(SERCOM5, 3, PINMUX_PA25C_SERCOM3_PAD3));
+#endif
+#ifdef PIN_PB22
+PIN(PB22, false, NO_ADC_INPUT,
+    #ifdef _SAMD21_TC7_INSTANCE_
+    TIMER(TC7, 0, 1, 1, PIN_PB22E_TC7_WO0, MUX_PB22E_TC7_WO0),
+    #else
+    NO_TIMER,
+    #endif
+    NO_TIMER,
+    NO_SERCOM,
+    SERCOM(SERCOM5, 2, PINMUX_PB22D_SERCOM5_PAD2));
+#endif
+#ifdef PIN_PB23
+PIN(PB23, false, NO_ADC_INPUT,
+    #ifdef _SAMD21_TC7_INSTANCE_
+    TIMER(TC7, 0, 1, 1, PIN_PB23E_TC7_WO1, MUX_PB23E_TC7_WO1),
+    #else
+    NO_TIMER,
+    #endif
+    NO_TIMER,
+    NO_SERCOM,
+    SERCOM(SERCOM5, 3, PINMUX_PB23D_SERCOM5_PAD3));
+#endif
+#ifdef PIN_PA27
+PIN(PA27, false, NO_ADC_INPUT,
+    NO_TIMER,
+    NO_TIMER,
+    NO_SERCOM,
+    NO_SERCOM);
+#endif
+#ifdef PIN_PA28
+PIN(PA28, false, NO_ADC_INPUT,
+    NO_TIMER,
+    NO_TIMER,
+    NO_SERCOM,
+    NO_SERCOM);
+#endif
+#ifdef PIN_PA30
+PIN(PA30, false, NO_ADC_INPUT,
+    TIMER(0, TCC1, 0, 0, PIN_PA30E_TCC1_WO0, MUX_PA30E_TCC1_WO0),
+    NO_TIMER,
+    NO_SERCOM,
+    SERCOM(SERCOM1, 2, PINMUX_PA30D_SERCOM1_PAD2));
+#endif
+#ifdef PIN_PA31
+PIN(PA31, false, NO_ADC_INPUT,
+    TIMER(0, TCC1, 1, 1, PIN_PA31E_TCC1_WO1, MUX_PA31E_TCC1_WO1),
+    NO_TIMER,
+    NO_SERCOM,
+    SERCOM(SERCOM1, 3, PINMUX_PA31D_SERCOM1_PAD3));
+#endif
+#ifdef PIN_PB30
+PIN(PB30, false, NO_ADC_INPUT,
+    TIMER(TCC0, 0, 0, 0, PIN_PB30E_TCC0_WO0, MUX_PB30E_TCC0_WO0),
+    TIMER(TCC1, 0, 2, 2, PIN_PB30F_TCC1_WO2, MUX_PB30F_TCC1_WO2),
+    NO_SERCOM,
+    SERCOM(SERCOM5, 0, PINMUX_PB30D_SERCOM5_PAD0));
+#endif
+#ifdef PIN_PB31
+PIN(PB31, false, NO_ADC_INPUT,
+    TIMER(TCC0, 0, 1, 1, PIN_PB31E_TCC0_WO1, MUX_PB31E_TCC0_WO1),
+    TIMER(TCC1, 0, 3, 3, PIN_PB31F_TCC1_WO3, MUX_PB31F_TCC1_WO3),
+    NO_SERCOM,
+    SERCOM(SERCOM5, 1, PINMUX_PB31D_SERCOM5_PAD1));
+#endif
+#ifdef PIN_PB00
+PIN(PB00, true, ADC_POSITIVE_INPUT_PIN8,
+    #ifdef _SAMD21_TC7_INSTANCE_
+    TIMER(TC7, 0, 0, 0, PIN_PB00E_TC7_WO0, MUX_PB00E_TC7_WO0),
+    #else
+    NO_TIMER,
+    #endif
+    NO_TIMER,
+    NO_SERCOM,
+    SERCOM(SERCOM5, 2, PINMUX_PB00D_SERCOM5_PAD2));
+#endif
+#ifdef PIN_PB01
+PIN(PB01, true, ADC_POSITIVE_INPUT_PIN9,
+    #ifdef _SAMD21_TC7_INSTANCE_
+    TIMER(TC7, 0, 1, 1, PIN_PB01E_TC7_WO1, MUX_PB01E_TC7_WO1),
+    #else
+    NO_TIMER,
+    #endif
+    NO_TIMER,
+    NO_SERCOM,
+    SERCOM(SERCOM5, 3, PINMUX_PB01D_SERCOM5_PAD3));
+#endif
+#ifdef PIN_PB02
+PIN(PB02, true, ADC_POSITIVE_INPUT_PIN10,
+    #ifdef _SAMD21_TC6_INSTANCE_
+    TIMER(TC6, 0, 0, 0, PIN_PB02E_TC6_WO0, MUX_PB02E_TC6_WO0),
+    #else
+    NO_TIMER,
+    #endif
+    NO_TIMER,
+    NO_SERCOM,
+    SERCOM(SERCOM5, 0, PINMUX_PB02D_SERCOM5_PAD0));
+#endif
+#ifdef PIN_PB03
+PIN(PB03, true, ADC_POSITIVE_INPUT_PIN11,
+    #ifdef _SAMD21_TC6_INSTANCE_
+    TIMER(TC6, 0, 1, 1, PIN_PB03E_TC6_WO1, MUX_PB03E_TC6_WO1),
+    #else
+    NO_TIMER,
+    #endif
+    NO_TIMER,
+    NO_SERCOM,
+    SERCOM(SERCOM5, 1, PINMUX_PB03D_SERCOM5_PAD1));
+#endif
+
+STATIC const mp_map_elem_t pin_cpu_pins_locals_dict_table[] = {
+// Pins in datasheet order.
+#ifdef PIN_PA00
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA00), (mp_obj_t)&pin_PA00 },
+#endif
+#ifdef PIN_PA01
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA01), (mp_obj_t)&pin_PA01 },
+#endif
+#ifdef PIN_PA02
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA02), (mp_obj_t)&pin_PA02 },
+#endif
+#ifdef PIN_PA03
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA03), (mp_obj_t)&pin_PA03 },
+#endif
+#ifdef PIN_PB04
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB04), (mp_obj_t)&pin_PB04 },
+#endif
+#ifdef PIN_PB05
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB05), (mp_obj_t)&pin_PB05 },
+#endif
+#ifdef PIN_PB06
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB06), (mp_obj_t)&pin_PB06 },
+#endif
+#ifdef PIN_PB07
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB07), (mp_obj_t)&pin_PB07 },
+#endif
+#ifdef PIN_PB08
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB08), (mp_obj_t)&pin_PB08 },
+#endif
+#ifdef PIN_PB09
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB09), (mp_obj_t)&pin_PB09 },
+#endif
+#ifdef PIN_PA04
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA04), (mp_obj_t)&pin_PA04 },
+#endif
+#ifdef PIN_PA05
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA05), (mp_obj_t)&pin_PA05 },
+#endif
+#ifdef PIN_PA06
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA06), (mp_obj_t)&pin_PA06 },
+#endif
+#ifdef PIN_PA07
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA07), (mp_obj_t)&pin_PA07 },
+#endif
+#ifdef PIN_PA08
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA08), (mp_obj_t)&pin_PA08 },
+#endif
+#ifdef PIN_PA09
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA09), (mp_obj_t)&pin_PA09 },
+#endif
+#ifdef PIN_PA10
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA10), (mp_obj_t)&pin_PA10 },
+#endif
+#ifdef PIN_PA11
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA11), (mp_obj_t)&pin_PA11 },
+#endif
+#ifdef PIN_PB10
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB10), (mp_obj_t)&pin_PB10 },
+#endif
+#ifdef PIN_PB11
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB11), (mp_obj_t)&pin_PB11 },
+#endif
+#ifdef PIN_PB12
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB12), (mp_obj_t)&pin_PB12 },
+#endif
+#ifdef PIN_PB13
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB13), (mp_obj_t)&pin_PB13 },
+#endif
+#ifdef PIN_PB14
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB14), (mp_obj_t)&pin_PB14 },
+#endif
+
+// Second page.
+#ifdef PIN_PB15
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB15), (mp_obj_t)&pin_PB15 },
+#endif
+#ifdef PIN_PA12
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA12), (mp_obj_t)&pin_PA12 },
+#endif
+#ifdef PIN_PA13
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA13), (mp_obj_t)&pin_PA13 },
+#endif
+#ifdef PIN_PA14
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA14), (mp_obj_t)&pin_PA14 },
+#endif
+#ifdef PIN_PA15
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA15), (mp_obj_t)&pin_PA15 },
+#endif
+#ifdef PIN_PA16
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA16), (mp_obj_t)&pin_PA16 },
+#endif
+#ifdef PIN_PA17
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA17), (mp_obj_t)&pin_PA17 },
+#endif
+#ifdef PIN_PA18
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA18), (mp_obj_t)&pin_PA18 },
+#endif
+#ifdef PIN_PA19
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA19), (mp_obj_t)&pin_PA19 },
+#endif
+#ifdef PIN_PB16
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB16), (mp_obj_t)&pin_PB16 },
+#endif
+#ifdef PIN_PB17
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB17), (mp_obj_t)&pin_PB17 },
+#endif
+#ifdef PIN_PA20
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA20), (mp_obj_t)&pin_PA20 },
+#endif
+#ifdef PIN_PA21
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA21), (mp_obj_t)&pin_PA21 },
+#endif
+#ifdef PIN_PA22
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA22), (mp_obj_t)&pin_PA22 },
+#endif
+#ifdef PIN_PA23
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA23), (mp_obj_t)&pin_PA23 },
+#endif
+#ifdef PIN_PA24
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA24), (mp_obj_t)&pin_PA24 },
+#endif
+#ifdef PIN_PA25
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA25), (mp_obj_t)&pin_PA25 },
+#endif
+#ifdef PIN_PB22
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB22), (mp_obj_t)&pin_PB22 },
+#endif
+#ifdef PIN_PB23
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB23), (mp_obj_t)&pin_PB23 },
+#endif
+#ifdef PIN_PA27
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA27), (mp_obj_t)&pin_PA27 },
+#endif
+#ifdef PIN_PA28
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA28), (mp_obj_t)&pin_PA28 },
+#endif
+#ifdef PIN_PA30
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA30), (mp_obj_t)&pin_PA30 },
+#endif
+#ifdef PIN_PA31
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PA31), (mp_obj_t)&pin_PA31 },
+#endif
+#ifdef PIN_PB30
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB30), (mp_obj_t)&pin_PB30 },
+#endif
+#ifdef PIN_PB31
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB31), (mp_obj_t)&pin_PB31 },
+#endif
+#ifdef PIN_PB00
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB00), (mp_obj_t)&pin_PB00 },
+#endif
+#ifdef PIN_PB01
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB01), (mp_obj_t)&pin_PB01 },
+#endif
+#ifdef PIN_PB02
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB02), (mp_obj_t)&pin_PB02 },
+#endif
+#ifdef PIN_PB03
+  { MP_OBJ_NEW_QSTR(MP_QSTR_PB03), (mp_obj_t)&pin_PB03 }
+#endif
+};
+MP_DEFINE_CONST_DICT(pin_cpu_pins_locals_dict, pin_cpu_pins_locals_dict_table);
diff --git a/atmel-samd/boards/samd21_pins.h b/atmel-samd/boards/samd21_pins.h
new file mode 100644
index 000000000..7c65ec30d
--- /dev/null
+++ b/atmel-samd/boards/samd21_pins.h
@@ -0,0 +1,166 @@
+#ifndef __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_SAMD21_PINS_H__
+#define __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_SAMD21_PINS_H__
+
+#include "modmachine_pin.h"
+
+// Pins in datasheet order.
+#ifdef PIN_PA00
+extern const pin_obj_t pin_PA00;
+#endif
+#ifdef PIN_PA01
+extern const pin_obj_t pin_PA01;
+#endif
+#ifdef PIN_PA02
+extern const pin_obj_t pin_PA02;
+#endif
+#ifdef PIN_PA03
+extern const pin_obj_t pin_PA03;
+#endif
+#ifdef PIN_PB04
+extern const pin_obj_t pin_PB04;
+#endif
+#ifdef PIN_PB05
+extern const pin_obj_t pin_PB05;
+#endif
+#ifdef PIN_PB06
+extern const pin_obj_t pin_PB06;
+#endif
+#ifdef PIN_PB07
+extern const pin_obj_t pin_PB07;
+#endif
+#ifdef PIN_PB08
+extern const pin_obj_t pin_PB08;
+#endif
+#ifdef PIN_PB09
+extern const pin_obj_t pin_PB09;
+#endif
+#ifdef PIN_PA04
+extern const pin_obj_t pin_PA04;
+#endif
+#ifdef PIN_PA05
+extern const pin_obj_t pin_PA05;
+#endif
+#ifdef PIN_PA06
+extern const pin_obj_t pin_PA06;
+#endif
+#ifdef PIN_PA07
+extern const pin_obj_t pin_PA07;
+#endif
+#ifdef PIN_PA08
+extern const pin_obj_t pin_PA08;
+#endif
+#ifdef PIN_PA09
+extern const pin_obj_t pin_PA09;
+#endif
+#ifdef PIN_PA10
+extern const pin_obj_t pin_PA10;
+#endif
+#ifdef PIN_PA11
+extern const pin_obj_t pin_PA11;
+#endif
+#ifdef PIN_PB10
+extern const pin_obj_t pin_PB10;
+#endif
+#ifdef PIN_PB11
+extern const pin_obj_t pin_PB11;
+#endif
+#ifdef PIN_PB12
+extern const pin_obj_t pin_PB12;
+#endif
+#ifdef PIN_PB13
+extern const pin_obj_t pin_PB13;
+#endif
+#ifdef PIN_PB14
+extern const pin_obj_t pin_PB14;
+#endif
+
+// Second page.
+#ifdef PIN_PB15
+extern const pin_obj_t pin_PB15;
+#endif
+#ifdef PIN_PA12
+extern const pin_obj_t pin_PA12;
+#endif
+#ifdef PIN_PA13
+extern const pin_obj_t pin_PA13;
+#endif
+#ifdef PIN_PA14
+extern const pin_obj_t pin_PA14;
+#endif
+#ifdef PIN_PA15
+extern const pin_obj_t pin_PA15;
+#endif
+#ifdef PIN_PA16
+extern const pin_obj_t pin_PA16;
+#endif
+#ifdef PIN_PA17
+extern const pin_obj_t pin_PA17;
+#endif
+#ifdef PIN_PA18
+extern const pin_obj_t pin_PA18;
+#endif
+#ifdef PIN_PA19
+extern const pin_obj_t pin_PA19;
+#endif
+#ifdef PIN_PB16
+extern const pin_obj_t pin_PB16;
+#endif
+#ifdef PIN_PB17
+extern const pin_obj_t pin_PB17;
+#endif
+#ifdef PIN_PA20
+extern const pin_obj_t pin_PA20;
+#endif
+#ifdef PIN_PA21
+extern const pin_obj_t pin_PA21;
+#endif
+#ifdef PIN_PA22
+extern const pin_obj_t pin_PA22;
+#endif
+#ifdef PIN_PA23
+extern const pin_obj_t pin_PA23;
+#endif
+#ifdef PIN_PA24
+extern const pin_obj_t pin_PA24;
+#endif
+#ifdef PIN_PA25
+extern const pin_obj_t pin_PA25;
+#endif
+#ifdef PIN_PB22
+extern const pin_obj_t pin_PB22;
+#endif
+#ifdef PIN_PB23
+extern const pin_obj_t pin_PB23;
+#endif
+#ifdef PIN_PA27
+extern const pin_obj_t pin_PA27;
+#endif
+#ifdef PIN_PA28
+extern const pin_obj_t pin_PA28;
+#endif
+#ifdef PIN_PA30
+extern const pin_obj_t pin_PA30;
+#endif
+#ifdef PIN_PA31
+extern const pin_obj_t pin_PA31;
+#endif
+#ifdef PIN_PB30
+extern const pin_obj_t pin_PB30;
+#endif
+#ifdef PIN_PB31
+extern const pin_obj_t pin_PB31;
+#endif
+#ifdef PIN_PB00
+extern const pin_obj_t pin_PB00;
+#endif
+#ifdef PIN_PB01
+extern const pin_obj_t pin_PB01;
+#endif
+#ifdef PIN_PB02
+extern const pin_obj_t pin_PB02;
+#endif
+#ifdef PIN_PB03
+extern const pin_obj_t pin_PB03;
+#endif
+
+#endif  // __MICROPY_INCLUDED_ATMEL_SAMD_BOARDS_SAMD21_PINS_H__