Merge remote-tracking branch 'origin/main' into implicit-fallthrough-diagnostic

Conflict in locale/circuitpython.pot resolved with 'make translate'

21 files changed, 299 insertions, 93 deletions

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6bb9612f8..360c29992 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -275,6 +275,7 @@ jobs:
         - "pyportal"
         - "pyportal_titano"
         - "pyruler"
+        - "qtpy_m0"
         - "raytac_mdbt50q-db-40"
         - "robohatmm1_m4"
         - "sam32"
diff --git a/locale/circuitpython.pot b/locale/circuitpython.pot
index 78d1223a6..038cdacfc 100644
--- a/locale/circuitpython.pot
+++ b/locale/circuitpython.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-09-12 15:10-0500\n"
+"POT-Creation-Date: 2020-09-13 14:21-0500\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -30,12 +30,6 @@ msgid ""
 "https://github.com/adafruit/circuitpython/issues\n"
 msgstr ""
 
-#: supervisor/shared/safe_mode.c
-msgid ""
-"\n"
-"To exit, please reset the board without "
-msgstr ""
-
 #: py/obj.c
 msgid "  File \"%q\""
 msgstr ""
@@ -1605,6 +1599,10 @@ msgid ""
 "Timer was reserved for internal use - declare PWM pins earlier in the program"
 msgstr ""
 
+#: supervisor/shared/safe_mode.c
+msgid "To exit, please reset the board without "
+msgstr ""
+
 #: ports/atmel-samd/common-hal/audiobusio/I2SOut.c
 msgid "Too many channels in sample."
 msgstr ""
diff --git a/locale/pt_BR.po b/locale/pt_BR.po
index 408287d60..d1d3b7209 100644
--- a/locale/pt_BR.po
+++ b/locale/pt_BR.po
@@ -6,7 +6,7 @@ msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2020-09-09 14:33-0700\n"
-"PO-Revision-Date: 2020-09-02 22:32+0000\n"
+"PO-Revision-Date: 2020-09-12 17:32+0000\n"
 "Last-Translator: Wellington Terumi Uemura <wellingtonuemura@gmail.com>\n"
 "Language-Team: \n"
 "Language: pt_BR\n"
@@ -385,7 +385,7 @@ msgstr ""
 
 #: shared-bindings/wifi/Radio.c
 msgid "Authentication failure"
-msgstr ""
+msgstr "Houve um falha na autenticação"
 
 #: main.c
 msgid "Auto-reload is off.\n"
@@ -606,7 +606,7 @@ msgstr ""
 
 #: supervisor/shared/safe_mode.c
 msgid "CircuitPython was unable to allocate the heap.\n"
-msgstr ""
+msgstr "O CircuitPython não conseguiu alocar o heap.\n"
 
 #: shared-module/bitbangio/SPI.c
 msgid "Clock pin init failed."
@@ -1258,7 +1258,7 @@ msgstr "Não há mais temporizadores disponíveis neste pino."
 
 #: shared-bindings/wifi/Radio.c
 msgid "No network with that ssid"
-msgstr ""
+msgstr "Não há rede com este ssid"
 
 #: shared-module/touchio/TouchIn.c
 msgid "No pulldown on pin; 1Mohm recommended"
@@ -1282,7 +1282,7 @@ msgstr "Declaração de falha do dispositivo Nordic Soft."
 
 #: shared-bindings/ipaddress/IPv4Address.c shared-bindings/ipaddress/__init__.c
 msgid "Not a valid IP string"
-msgstr ""
+msgstr "Não é uma sequência válida de IP"
 
 #: ports/nrf/common-hal/_bleio/__init__.c
 #: shared-bindings/_bleio/CharacteristicBuffer.c
@@ -1335,7 +1335,7 @@ msgstr ""
 
 #: shared-bindings/ipaddress/__init__.c
 msgid "Only raw int supported for ip"
-msgstr ""
+msgstr "Apenas o int bruto é compatível para o ip"
 
 #: shared-bindings/audiobusio/PDMIn.c
 msgid "Oversample must be multiple of 8."
@@ -1547,7 +1547,7 @@ msgstr "Serializer em uso"
 
 #: shared-bindings/ssl/SSLContext.c
 msgid "Server side context cannot have hostname"
-msgstr ""
+msgstr "O contexto do lado do servidor não pode ter nome de host"
 
 #: shared-bindings/nvm/ByteArray.c
 msgid "Slice and value different lengths."
@@ -1760,7 +1760,7 @@ msgstr "Tipo uuid nrfx inesperado"
 
 #: shared-bindings/wifi/Radio.c
 msgid "Unknown failure"
-msgstr ""
+msgstr "Falha desconhecida"
 
 #: ports/nrf/common-hal/_bleio/__init__.c
 #, c-format
@@ -1879,7 +1879,7 @@ msgstr ""
 
 #: shared-bindings/wifi/Radio.c
 msgid "WiFi password must be between 8 and 63 characters"
-msgstr ""
+msgstr "A senha do Wi-Fi deve ter entre 8 e 63 caracteres"
 
 #: ports/nrf/common-hal/_bleio/PacketBuffer.c
 msgid "Writes not supported on Characteristic"
diff --git a/ports/atmel-samd/boards/circuitplayground_express/mpconfigboard.h b/ports/atmel-samd/boards/circuitplayground_express/mpconfigboard.h
index 12c48b1e3..54789f04f 100644
--- a/ports/atmel-samd/boards/circuitplayground_express/mpconfigboard.h
+++ b/ports/atmel-samd/boards/circuitplayground_express/mpconfigboard.h
@@ -25,7 +25,7 @@
 #define CALIBRATE_CRYSTALLESS 1
 
 // Explanation of how a user got into safe mode.
-#define BOARD_USER_SAFE_MODE_ACTION "pressing both buttons at start up"
+#define BOARD_USER_SAFE_MODE_ACTION "pressing both buttons at start up.\n"
 
 // Increase stack size slightly due to CPX library import nesting
 #define CIRCUITPY_DEFAULT_STACK_SIZE  (4248) //divisible by 8
diff --git a/ports/atmel-samd/boards/circuitplayground_express_crickit/mpconfigboard.h b/ports/atmel-samd/boards/circuitplayground_express_crickit/mpconfigboard.h
index 95b4ec110..e377275b7 100644
--- a/ports/atmel-samd/boards/circuitplayground_express_crickit/mpconfigboard.h
+++ b/ports/atmel-samd/boards/circuitplayground_express_crickit/mpconfigboard.h
@@ -27,7 +27,7 @@
 #define USER_NEOPIXELS_PIN      (&pin_PB23)
 
 // Explanation of how a user got into safe mode.
-#define BOARD_USER_SAFE_MODE_ACTION "pressing both buttons at start up"
+#define BOARD_USER_SAFE_MODE_ACTION "pressing both buttons at start up.\n"
 
 // Increase stack size slightly due to CPX library import nesting
 #define CIRCUITPY_DEFAULT_STACK_SIZE  (4248) // divisible by 8
diff --git a/ports/atmel-samd/boards/circuitplayground_express_displayio/mpconfigboard.h b/ports/atmel-samd/boards/circuitplayground_express_displayio/mpconfigboard.h
index d478ea38b..cacbed0de 100644
--- a/ports/atmel-samd/boards/circuitplayground_express_displayio/mpconfigboard.h
+++ b/ports/atmel-samd/boards/circuitplayground_express_displayio/mpconfigboard.h
@@ -25,7 +25,7 @@
 #define CALIBRATE_CRYSTALLESS 1
 
 // Explanation of how a user got into safe mode.
-#define BOARD_USER_SAFE_MODE_ACTION "pressing both buttons at start up"
+#define BOARD_USER_SAFE_MODE_ACTION "pressing both buttons at start up.\n"
 
 // Increase stack size slightly due to CPX library import nesting.
 #define CIRCUITPY_DEFAULT_STACK_SIZE  (4248)  // divisible by 8
diff --git a/ports/atmel-samd/boards/escornabot_makech/mpconfigboard.h b/ports/atmel-samd/boards/escornabot_makech/mpconfigboard.h
index 3a984188f..ac1add545 100644
--- a/ports/atmel-samd/boards/escornabot_makech/mpconfigboard.h
+++ b/ports/atmel-samd/boards/escornabot_makech/mpconfigboard.h
@@ -11,7 +11,7 @@
 #define CALIBRATE_CRYSTALLESS 1
 
 // Explanation of how a user got into safe mode.
-#define BOARD_USER_SAFE_MODE_ACTION "pressing both buttons at start up"
+#define BOARD_USER_SAFE_MODE_ACTION "pressing both buttons at start up.\n"
 
 #define DEFAULT_I2C_BUS_SCL (&pin_PA08)
 #define DEFAULT_I2C_BUS_SDA (&pin_PA09)
diff --git a/ports/atmel-samd/boards/meowmeow/mpconfigboard.h b/ports/atmel-samd/boards/meowmeow/mpconfigboard.h
index 80d367863..79d477cac 100644
--- a/ports/atmel-samd/boards/meowmeow/mpconfigboard.h
+++ b/ports/atmel-samd/boards/meowmeow/mpconfigboard.h
@@ -11,7 +11,7 @@
 #define CALIBRATE_CRYSTALLESS 1
 
 // Explanation of how a user got into safe mode.
-#define BOARD_USER_SAFE_MODE_ACTION "pressing both buttons at start up"
+#define BOARD_USER_SAFE_MODE_ACTION "pressing both buttons at start up.\n"
 
 #define DEFAULT_I2C_BUS_SCL (&pin_PA01)
 #define DEFAULT_I2C_BUS_SDA (&pin_PA00)
diff --git a/ports/atmel-samd/boards/qtpy_m0/board.c b/ports/atmel-samd/boards/qtpy_m0/board.c
new file mode 100644
index 000000000..2add1867c
--- /dev/null
+++ b/ports/atmel-samd/boards/qtpy_m0/board.c
@@ -0,0 +1,43 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "boards/board.h"
+#include "common-hal/microcontroller/Pin.h"
+#include "supervisor/shared/board.h"
+#include "hal/include/hal_gpio.h"
+
+void board_init(void) {
+    gpio_set_pin_function(PIN_PA18, GPIO_PIN_FUNCTION_OFF);
+    gpio_set_pin_direction(PIN_PA18, GPIO_DIRECTION_OUT);
+    gpio_set_pin_level(PIN_PA18, true); // Turn on neopixel by default
+}
+
+bool board_requests_safe_mode(void) {
+    return false;
+}
+
+void reset_board(void) {
+}
diff --git a/ports/atmel-samd/boards/qtpy_m0/mpconfigboard.h b/ports/atmel-samd/boards/qtpy_m0/mpconfigboard.h
new file mode 100644
index 000000000..a88c1992d
--- /dev/null
+++ b/ports/atmel-samd/boards/qtpy_m0/mpconfigboard.h
@@ -0,0 +1,55 @@
+#define MICROPY_HW_BOARD_NAME "Adafruit QT Py M0"
+#define MICROPY_HW_MCU_NAME "samd21e18"
+
+#define MICROPY_HW_NEOPIXEL (&pin_PA19)
+
+#define MICROPY_PORT_A        (0)
+#define MICROPY_PORT_B        (0)
+#define MICROPY_PORT_C        (0)
+
+#define IGNORE_PIN_PA00     1
+#define IGNORE_PIN_PA01     1
+#define IGNORE_PIN_PA09     1
+#define IGNORE_PIN_PA12     1
+#define IGNORE_PIN_PA13     1
+#define IGNORE_PIN_PA20     1
+#define IGNORE_PIN_PA21     1
+// USB is always used internally so skip the pin objects for it.
+#define IGNORE_PIN_PA24     1
+#define IGNORE_PIN_PA25     1
+#define IGNORE_PIN_PA27     1
+#define IGNORE_PIN_PA28     1
+#define IGNORE_PIN_PA30     1
+#define IGNORE_PIN_PA31     1
+#define IGNORE_PIN_PB01     1
+#define IGNORE_PIN_PB02     1
+#define IGNORE_PIN_PB03     1
+#define IGNORE_PIN_PB04     1
+#define IGNORE_PIN_PB05     1
+#define IGNORE_PIN_PB06     1
+#define IGNORE_PIN_PB07     1
+#define IGNORE_PIN_PB08     1
+#define IGNORE_PIN_PB09     1
+#define IGNORE_PIN_PB10     1
+#define IGNORE_PIN_PB11     1
+#define IGNORE_PIN_PB12     1
+#define IGNORE_PIN_PB13     1
+#define IGNORE_PIN_PB14     1
+#define IGNORE_PIN_PB15     1
+#define IGNORE_PIN_PB16     1
+#define IGNORE_PIN_PB17     1
+#define IGNORE_PIN_PB22     1
+#define IGNORE_PIN_PB23     1
+#define IGNORE_PIN_PB30     1
+#define IGNORE_PIN_PB31     1
+#define IGNORE_PIN_PB00     1
+
+#define DEFAULT_I2C_BUS_SCL (&pin_PA17)
+#define DEFAULT_I2C_BUS_SDA (&pin_PA16)
+
+#define DEFAULT_SPI_BUS_SCK (&pin_PA11)
+#define DEFAULT_SPI_BUS_MOSI (&pin_PA08)
+#define DEFAULT_SPI_BUS_MISO (&pin_PA10)
+
+#define DEFAULT_UART_BUS_RX (&pin_PA07)
+#define DEFAULT_UART_BUS_TX (&pin_PA06)
diff --git a/ports/atmel-samd/boards/qtpy_m0/mpconfigboard.mk b/ports/atmel-samd/boards/qtpy_m0/mpconfigboard.mk
new file mode 100644
index 000000000..964cbe643
--- /dev/null
+++ b/ports/atmel-samd/boards/qtpy_m0/mpconfigboard.mk
@@ -0,0 +1,24 @@
+USB_VID = 0x239A
+USB_PID = 0x80CC
+USB_PRODUCT = "QT Py M0"
+USB_MANUFACTURER = "Adafruit Industries LLC"
+
+CHIP_VARIANT = SAMD21E18A
+CHIP_FAMILY = samd21
+
+INTERNAL_FLASH_FILESYSTEM = 1
+LONGINT_IMPL = NONE
+CIRCUITPY_FULL_BUILD = 0
+
+SUPEROPT_GC = 0
+
+CFLAGS_BOARD = --param max-inline-insns-auto=15
+ifeq ($(TRANSLATION), zh_Latn_pinyin)
+RELEASE_NEEDS_CLEAN_BUILD = 1
+CFLAGS_INLINE_LIMIT = 35
+endif
+ifeq ($(TRANSLATION), de_DE)
+RELEASE_NEEDS_CLEAN_BUILD = 1
+CFLAGS_INLINE_LIMIT = 35
+SUPEROPT_VM = 0
+endif
diff --git a/ports/atmel-samd/boards/qtpy_m0/pins.c b/ports/atmel-samd/boards/qtpy_m0/pins.c
new file mode 100644
index 000000000..4ac10a7a6
--- /dev/null
+++ b/ports/atmel-samd/boards/qtpy_m0/pins.c
@@ -0,0 +1,49 @@
+#include "shared-bindings/board/__init__.h"
+
+STATIC const mp_rom_map_elem_t board_global_dict_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_D0), MP_ROM_PTR(&pin_PA02) },
+    { MP_ROM_QSTR(MP_QSTR_A0), MP_ROM_PTR(&pin_PA02) },
+
+    { MP_ROM_QSTR(MP_QSTR_D1), MP_ROM_PTR(&pin_PA03) },
+    { MP_ROM_QSTR(MP_QSTR_A1), MP_ROM_PTR(&pin_PA03) },
+
+    { MP_ROM_QSTR(MP_QSTR_D2), MP_ROM_PTR(&pin_PA04) },
+    { MP_ROM_QSTR(MP_QSTR_A2), MP_ROM_PTR(&pin_PA04) },
+
+    { MP_ROM_QSTR(MP_QSTR_D3), MP_ROM_PTR(&pin_PA05) },
+    { MP_ROM_QSTR(MP_QSTR_A3), MP_ROM_PTR(&pin_PA05) },
+
+    { MP_ROM_QSTR(MP_QSTR_D4), MP_ROM_PTR(&pin_PA16) },
+    { MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_PA16) },
+
+    { MP_ROM_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_PA17) },
+    { MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_PA17) },
+
+    { MP_ROM_QSTR(MP_QSTR_D6), MP_ROM_PTR(&pin_PA06) },
+    { MP_ROM_QSTR(MP_QSTR_A6), MP_ROM_PTR(&pin_PA06) },
+    { MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_PA06) },
+
+    { MP_ROM_QSTR(MP_QSTR_D7), MP_ROM_PTR(&pin_PA07) },
+    { MP_ROM_QSTR(MP_QSTR_A7), MP_ROM_PTR(&pin_PA07) },
+    { MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_PA07) },
+
+    { MP_ROM_QSTR(MP_QSTR_D8), MP_ROM_PTR(&pin_PA11) },
+    { MP_ROM_QSTR(MP_QSTR_A8), MP_ROM_PTR(&pin_PA11) },
+    { MP_ROM_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_PA11) },
+
+    { MP_ROM_QSTR(MP_QSTR_D9), MP_ROM_PTR(&pin_PA10) },
+    { MP_ROM_QSTR(MP_QSTR_A9), MP_ROM_PTR(&pin_PA10) },
+    { MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_PA10) },
+
+    { MP_ROM_QSTR(MP_QSTR_D10), MP_ROM_PTR(&pin_PA08) },
+    { MP_ROM_QSTR(MP_QSTR_A10), MP_ROM_PTR(&pin_PA08) },
+    { MP_ROM_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_PA08) },
+
+    { MP_ROM_QSTR(MP_QSTR_NEOPIXEL), MP_ROM_PTR(&pin_PA19) },
+    { MP_ROM_QSTR(MP_QSTR_NEOPIXEL_POWER), MP_ROM_PTR(&pin_PA18) },
+
+    { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
+    { MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&board_spi_obj) },
+    { MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&board_uart_obj) },
+};
+MP_DEFINE_CONST_DICT(board_module_globals, board_global_dict_table);
diff --git a/ports/esp32s2/boards/electroniccats_bastwifi/mpconfigboard.h b/ports/esp32s2/boards/electroniccats_bastwifi/mpconfigboard.h
index ed3f23a3c..2af3515f4 100644
--- a/ports/esp32s2/boards/electroniccats_bastwifi/mpconfigboard.h
+++ b/ports/esp32s2/boards/electroniccats_bastwifi/mpconfigboard.h
@@ -29,4 +29,8 @@
 #define MICROPY_HW_BOARD_NAME       "BastWiFi"
 #define MICROPY_HW_MCU_NAME         "ESP32S2"
 
+#define CIRCUITPY_BOOT_BUTTON (&pin_GPIO0)
+
+#define BOARD_USER_SAFE_MODE_ACTION "pressing boot button at start up.\n"
+
 #define AUTORESET_DELAY_MS 500
diff --git a/ports/esp32s2/boards/espressif_kaluga_1/mpconfigboard.h b/ports/esp32s2/boards/espressif_kaluga_1/mpconfigboard.h
index 84d15ffc2..a4c8e6576 100644
--- a/ports/esp32s2/boards/espressif_kaluga_1/mpconfigboard.h
+++ b/ports/esp32s2/boards/espressif_kaluga_1/mpconfigboard.h
@@ -31,4 +31,8 @@
 
 #define MICROPY_HW_NEOPIXEL (&pin_GPIO45)
 
+#define CIRCUITPY_BOOT_BUTTON (&pin_GPIO0)
+
+#define BOARD_USER_SAFE_MODE_ACTION "pressing boot button at start up.\n"
+
 #define AUTORESET_DELAY_MS 500
diff --git a/ports/esp32s2/boards/espressif_saola_1_wroom/mpconfigboard.h b/ports/esp32s2/boards/espressif_saola_1_wroom/mpconfigboard.h
index a94f10ea4..335aaeb5e 100644
--- a/ports/esp32s2/boards/espressif_saola_1_wroom/mpconfigboard.h
+++ b/ports/esp32s2/boards/espressif_saola_1_wroom/mpconfigboard.h
@@ -31,4 +31,8 @@
 
 #define MICROPY_HW_NEOPIXEL (&pin_GPIO18)
 
+#define CIRCUITPY_BOOT_BUTTON (&pin_GPIO0)
+
+#define BOARD_USER_SAFE_MODE_ACTION "pressing boot button at start up.\n"
+
 #define AUTORESET_DELAY_MS 500
diff --git a/ports/esp32s2/boards/espressif_saola_1_wrover/mpconfigboard.h b/ports/esp32s2/boards/espressif_saola_1_wrover/mpconfigboard.h
index 338186dc5..d3ef8bb26 100644
--- a/ports/esp32s2/boards/espressif_saola_1_wrover/mpconfigboard.h
+++ b/ports/esp32s2/boards/espressif_saola_1_wrover/mpconfigboard.h
@@ -31,4 +31,8 @@
 
 #define MICROPY_HW_NEOPIXEL (&pin_GPIO18)
 
+#define CIRCUITPY_BOOT_BUTTON (&pin_GPIO0)
+
+#define BOARD_USER_SAFE_MODE_ACTION "pressing boot button at start up.\n"
+
 #define AUTORESET_DELAY_MS 500
diff --git a/ports/esp32s2/boards/microdev_micro_s2/mpconfigboard.h b/ports/esp32s2/boards/microdev_micro_s2/mpconfigboard.h
index bb28fe16a..1a1ef7a6c 100644
--- a/ports/esp32s2/boards/microdev_micro_s2/mpconfigboard.h
+++ b/ports/esp32s2/boards/microdev_micro_s2/mpconfigboard.h
@@ -32,4 +32,8 @@
 #define MICROPY_HW_LED (&pin_GPIO21)
 #define MICROPY_HW_NEOPIXEL (&pin_GPIO33)
 
+#define CIRCUITPY_BOOT_BUTTON (&pin_GPIO0)
+
+#define BOARD_USER_SAFE_MODE_ACTION "pressing boot button at start up.\n"
+
 #define AUTORESET_DELAY_MS 500
diff --git a/ports/esp32s2/boards/unexpectedmaker_feathers2/mpconfigboard.h b/ports/esp32s2/boards/unexpectedmaker_feathers2/mpconfigboard.h
index 93fb0c573..a65d00206 100644
--- a/ports/esp32s2/boards/unexpectedmaker_feathers2/mpconfigboard.h
+++ b/ports/esp32s2/boards/unexpectedmaker_feathers2/mpconfigboard.h
@@ -29,6 +29,10 @@
 #define MICROPY_HW_BOARD_NAME       "FeatherS2"
 #define MICROPY_HW_MCU_NAME         "ESP32S2"
 
+#define CIRCUITPY_BOOT_BUTTON (&pin_GPIO0)
+
+#define BOARD_USER_SAFE_MODE_ACTION "pressing boot button at start up.\n"
+
 #define AUTORESET_DELAY_MS 500
 
 // Doesn't work with this on.
diff --git a/shared-bindings/_bleio/Address.c b/shared-bindings/_bleio/Address.c
index 1f168d31a..04c667db4 100644
--- a/shared-bindings/_bleio/Address.c
+++ b/shared-bindings/_bleio/Address.c
@@ -86,7 +86,7 @@ STATIC mp_obj_t bleio_address_make_new(const mp_obj_type_t *type, size_t n_args,
 //|     or use `str()` on the :py:class:`~_bleio.Attribute` object itself, the address will be printed
 //|     in the expected order. For example:
 //|
-//|     .. code-block:: pycon
+//|     .. code-block:: python
 //|
 //|       >>> import _bleio
 //|       >>> _bleio.adapter.address
diff --git a/shared-bindings/time/__init__.c b/shared-bindings/time/__init__.c
index 0a78b377c..44f82c62e 100644
--- a/shared-bindings/time/__init__.c
+++ b/shared-bindings/time/__init__.c
@@ -215,7 +215,7 @@ STATIC mp_obj_t time_time(void) {
 MP_DEFINE_CONST_FUN_OBJ_0(time_time_obj, time_time);
 
 //| def monotonic_ns() -> int:
-//|     """Return the time of the specified clock clk_id in nanoseconds.
+//|     """Return the time of the monotonic clock, cannot go backward, in nanoseconds.
 //|
 //|     :return: the current time
 //|     :rtype: int"""
diff --git a/supervisor/shared/safe_mode.c b/supervisor/shared/safe_mode.c
index 29a0a6a4f..1cf36e4b7 100644
--- a/supervisor/shared/safe_mode.c
+++ b/supervisor/shared/safe_mode.c
@@ -60,6 +60,11 @@ safe_mode_t wait_for_safe_mode_reset(void) {
     common_hal_digitalio_digitalinout_construct(&status_led, MICROPY_HW_LED_STATUS);
     common_hal_digitalio_digitalinout_switch_to_output(&status_led, true, DRIVE_MODE_PUSH_PULL);
     #endif
+    #ifdef CIRCUITPY_BOOT_BUTTON
+    digitalio_digitalinout_obj_t boot_button;
+    common_hal_digitalio_digitalinout_construct(&boot_button, CIRCUITPY_BOOT_BUTTON);
+    common_hal_digitalio_digitalinout_switch_to_input(&boot_button, PULL_UP);
+    #endif
     uint64_t start_ticks = supervisor_ticks_ms64();
     uint64_t diff = 0;
     while (diff < 700) {
@@ -67,6 +72,11 @@ safe_mode_t wait_for_safe_mode_reset(void) {
         // Blink on for 100, off for 100, on for 100, off for 100 and on for 200
         common_hal_digitalio_digitalinout_set_value(&status_led, diff > 100 && diff / 100 != 2 && diff / 100 != 4);
         #endif
+        #ifdef CIRCUITPY_BOOT_BUTTON
+        if (!common_hal_digitalio_digitalinout_get_value(&boot_button)) {
+           return USER_SAFE_MODE;
+        }
+        #endif
         diff = supervisor_ticks_ms64() - start_ticks;
     }
     #ifdef MICROPY_HW_LED_STATUS
@@ -103,77 +113,79 @@ void print_safe_mode_message(safe_mode_t reason) {
         return;
     }
     serial_write("\n");
-    // Output a user safe mode string if it's set.
-    #ifdef BOARD_USER_SAFE_MODE
-    if (reason == USER_SAFE_MODE) {
-        serial_write_compressed(translate("You requested starting safe mode by "));
-        serial_write(BOARD_USER_SAFE_MODE_ACTION);
-        serial_write_compressed(translate("\nTo exit, please reset the board without "));
-        serial_write(BOARD_USER_SAFE_MODE_ACTION);
-        serial_write("\n");
-    } else
-    #endif
-        switch (reason) {
-            case MANUAL_SAFE_MODE:
-                serial_write_compressed(translate("CircuitPython is in safe mode because you pressed the reset button during boot. Press again to exit safe mode.\n"));
-                return;
-            case PROGRAMMATIC_SAFE_MODE:
-                serial_write_compressed(translate("The `microcontroller` module was used to boot into safe mode. Press reset to exit safe mode.\n"));
-                return;
-            default:
-                break;
-        }
 
-        serial_write_compressed(translate("You are in safe mode: something unanticipated happened.\n"));
-        switch (reason) {
-            case BROWNOUT:
-                serial_write_compressed(translate("The microcontroller's power dipped. Make sure your power supply provides\nenough power for the whole circuit and press reset (after ejecting CIRCUITPY).\n"));
-                return;
-            case HEAP_OVERWRITTEN:
-                serial_write_compressed(translate("The CircuitPython heap was corrupted because the stack was too small.\nPlease increase the stack size if you know how, or if not:"));
-                serial_write_compressed(FILE_AN_ISSUE);
-                return;
-            case NO_HEAP:
-                serial_write_compressed(translate("CircuitPython was unable to allocate the heap.\n"));
-                serial_write_compressed(FILE_AN_ISSUE);
-                return;
-            default:
+    switch (reason) {
+        case USER_SAFE_MODE:
+            #ifdef BOARD_USER_SAFE_MODE_ACTION
+                // Output a user safe mode string if it's set.
+                serial_write_compressed(translate("You requested starting safe mode by "));
+                serial_write_compressed(translate(BOARD_USER_SAFE_MODE_ACTION));
+                serial_write_compressed(translate("To exit, please reset the board without "));
+                serial_write_compressed(translate(BOARD_USER_SAFE_MODE_ACTION));
+            #else
                 break;
-        }
+            #endif
+            return;
+        case MANUAL_SAFE_MODE:
+            serial_write_compressed(translate("CircuitPython is in safe mode because you pressed the reset button during boot. Press again to exit safe mode.\n"));
+            return;
+        case PROGRAMMATIC_SAFE_MODE:
+            serial_write_compressed(translate("The `microcontroller` module was used to boot into safe mode. Press reset to exit safe mode.\n"));
+            return;
+        default:
+            break;
+    }
 
-        serial_write_compressed(translate("CircuitPython core code crashed hard. Whoops!\n"));
-        switch (reason) {
-            case HARD_CRASH:
-                serial_write_compressed(translate("Crash into the HardFault_Handler."));
-                return;
-            case MICROPY_NLR_JUMP_FAIL:
-                serial_write_compressed(translate("MicroPython NLR jump failed. Likely memory corruption."));
-                return;
-            case MICROPY_FATAL_ERROR:
-                serial_write_compressed(translate("MicroPython fatal error."));
-                break;
-            case GC_ALLOC_OUTSIDE_VM:
-                serial_write_compressed(translate("Attempted heap allocation when MicroPython VM not running."));
-                break;
-#ifdef SOFTDEVICE_PRESENT
-            // defined in ports/nrf/bluetooth/bluetooth_common.mk
-            // will print "Unknown reason" if somehow encountered on other ports
-            case NORDIC_SOFT_DEVICE_ASSERT:
-                serial_write_compressed(translate("Nordic Soft Device failure assertion."));
-                break;
-#endif
-            case FLASH_WRITE_FAIL:
-                serial_write_compressed(translate("Failed to write internal flash."));
-                break;
-            case MEM_MANAGE:
-                serial_write_compressed(translate("Invalid memory access."));
-                break;
-            case WATCHDOG_RESET:
-                serial_write_compressed(translate("Watchdog timer expired."));
-                break;
-            default:
-                serial_write_compressed(translate("Unknown reason."));
-                break;
-        }
-        serial_write_compressed(FILE_AN_ISSUE);
+    serial_write_compressed(translate("You are in safe mode: something unanticipated happened.\n"));
+    switch (reason) {
+        case BROWNOUT:
+            serial_write_compressed(translate("The microcontroller's power dipped. Make sure your power supply provides\nenough power for the whole circuit and press reset (after ejecting CIRCUITPY).\n"));
+            return;
+        case HEAP_OVERWRITTEN:
+            serial_write_compressed(translate("The CircuitPython heap was corrupted because the stack was too small.\nPlease increase the stack size if you know how, or if not:"));
+            serial_write_compressed(FILE_AN_ISSUE);
+            return;
+        case NO_HEAP:
+            serial_write_compressed(translate("CircuitPython was unable to allocate the heap.\n"));
+            serial_write_compressed(FILE_AN_ISSUE);
+            return;
+        default:
+            break;
+    }
+
+    serial_write_compressed(translate("CircuitPython core code crashed hard. Whoops!\n"));
+    switch (reason) {
+        case HARD_CRASH:
+            serial_write_compressed(translate("Crash into the HardFault_Handler."));
+            return;
+        case MICROPY_NLR_JUMP_FAIL:
+            serial_write_compressed(translate("MicroPython NLR jump failed. Likely memory corruption."));
+            return;
+        case MICROPY_FATAL_ERROR:
+            serial_write_compressed(translate("MicroPython fatal error."));
+            break;
+        case GC_ALLOC_OUTSIDE_VM:
+            serial_write_compressed(translate("Attempted heap allocation when MicroPython VM not running."));
+            break;
+        #ifdef SOFTDEVICE_PRESENT
+        // defined in ports/nrf/bluetooth/bluetooth_common.mk
+        // will print "Unknown reason" if somehow encountered on other ports
+        case NORDIC_SOFT_DEVICE_ASSERT:
+            serial_write_compressed(translate("Nordic Soft Device failure assertion."));
+            break;
+        #endif
+        case FLASH_WRITE_FAIL:
+            serial_write_compressed(translate("Failed to write internal flash."));
+            break;
+        case MEM_MANAGE:
+            serial_write_compressed(translate("Invalid memory access."));
+            break;
+        case WATCHDOG_RESET:
+            serial_write_compressed(translate("Watchdog timer expired."));
+            break;
+        default:
+            serial_write_compressed(translate("Unknown reason."));
+            break;
+    }
+    serial_write_compressed(FILE_AN_ISSUE);
 }