diff --git a/README.rst b/README.rst
index 86c5660417..9a16c001df 100644
--- a/README.rst
+++ b/README.rst
@@ -140,8 +140,7 @@ Behavior
 -  Autoreload is disabled while the REPL is active.
 -  Main is one of these: ``code.txt``, ``code.py``, ``main.py``,
    ``main.txt``
--  Boot is one of these: ``settings.txt``, ``settings.py``, ``boot.py``,
-   ``boot.txt``
+-  Boot is one of these: ``boot.py``, ``boot.txt``
 
 API
 ~~~
diff --git a/locale/pt_BR.po b/locale/pt_BR.po
index 3d6fc34ed4..dd2ccb5833 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: 2021-01-04 12:55-0600\n"
-"PO-Revision-Date: 2021-07-23 12:45+0000\n"
+"PO-Revision-Date: 2021-07-24 15:35+0000\n"
 "Last-Translator: Wellington Terumi Uemura <wellingtonuemura@gmail.com>\n"
 "Language-Team: \n"
 "Language: pt_BR\n"
@@ -1222,7 +1222,7 @@ msgstr "Erro de entrada/saída"
 #: ports/raspberrypi/common-hal/rp2pio/StateMachine.c
 #, c-format
 msgid "Missing jmp_pin. Instruction %d jumps on pin"
-msgstr ""
+msgstr "Falta o jmp_pin. A instrução %d salta no pino"
 
 #: ports/raspberrypi/common-hal/rp2pio/StateMachine.c
 #, c-format
diff --git a/locale/sv.po b/locale/sv.po
index e60a3152c5..a8603151d6 100644
--- a/locale/sv.po
+++ b/locale/sv.po
@@ -6,7 +6,7 @@ msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2021-01-04 12:55-0600\n"
-"PO-Revision-Date: 2021-07-22 18:33+0000\n"
+"PO-Revision-Date: 2021-07-24 15:35+0000\n"
 "Last-Translator: Jonny Bergdahl <jonny@bergdahl.it>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
 "Language: sv\n"
@@ -1207,7 +1207,7 @@ msgstr "Indata-/utdatafel"
 #: ports/raspberrypi/common-hal/rp2pio/StateMachine.c
 #, c-format
 msgid "Missing jmp_pin. Instruction %d jumps on pin"
-msgstr ""
+msgstr "Saknar jmp_pin. Instruktion %d hoppar på pin"
 
 #: ports/raspberrypi/common-hal/rp2pio/StateMachine.c
 #, c-format
@@ -2846,7 +2846,7 @@ msgstr ""
 
 #: extmod/ulab/code/ndarray.c
 msgid "cannot assign new shape"
-msgstr ""
+msgstr "kan inte tilldela en ny form"
 
 #: extmod/ulab/code/ndarray_operators.c
 msgid "cannot cast output with casting rule"
@@ -3600,7 +3600,7 @@ msgstr "memoryview: längden är inte en multipel av itemsize"
 
 #: extmod/ulab/code/numpy/linalg/linalg.c
 msgid "mode must be complete, or reduced"
-msgstr ""
+msgstr "mode måste vara complete, eller reduced"
 
 #: py/builtinimport.c
 msgid "module not found"
@@ -3846,11 +3846,11 @@ msgstr "operander kan inte sändas tillsammans"
 
 #: extmod/ulab/code/numpy/linalg/linalg.c
 msgid "operation is defined for 2D arrays only"
-msgstr ""
+msgstr "operation definierad endast för 2D-matriser"
 
 #: extmod/ulab/code/numpy/linalg/linalg.c
 msgid "operation is defined for ndarrays only"
-msgstr ""
+msgstr "operation definierad endast för ndarrays"
 
 #: extmod/ulab/code/ndarray.c
 msgid "operation is implemented for 1D Boolean arrays only"
diff --git a/main.c b/main.c
index c6801dca7d..13caf4beb7 100755
--- a/main.c
+++ b/main.c
@@ -631,7 +631,7 @@ STATIC void __attribute__ ((noinline)) run_boot_py(safe_mode_t safe_mode) {
         && safe_mode == NO_SAFE_MODE
         && MP_STATE_VM(vfs_mount_table) != NULL;
 
-    static const char * const boot_py_filenames[] = STRING_LIST("settings.txt", "settings.py", "boot.py", "boot.txt");
+    static const char * const boot_py_filenames[] = STRING_LIST("boot.py", "boot.txt");
     bool skip_boot_output = false;
 
     if (ok_to_run) {
diff --git a/ports/atmel-samd/boards/adafruit_proxlight_trinkey_m0/mpconfigboard.mk b/ports/atmel-samd/boards/adafruit_proxlight_trinkey_m0/mpconfigboard.mk
index cee8049231..a617947f9c 100644
--- a/ports/atmel-samd/boards/adafruit_proxlight_trinkey_m0/mpconfigboard.mk
+++ b/ports/atmel-samd/boards/adafruit_proxlight_trinkey_m0/mpconfigboard.mk
@@ -21,6 +21,7 @@ CIRCUITPY_RTC = 0
 CIRCUITPY_USB_MIDI = 0
 
 CIRCUITPY_PIXELBUF = 1
+CIRCUITPY_BUSDEVICE = 1
 
 # Include these Python libraries in firmware.
 FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_HID
diff --git a/ports/atmel-samd/boards/circuitplayground_express/mpconfigboard.h b/ports/atmel-samd/boards/circuitplayground_express/mpconfigboard.h
index 105205f191..9020c243b1 100644
--- a/ports/atmel-samd/boards/circuitplayground_express/mpconfigboard.h
+++ b/ports/atmel-samd/boards/circuitplayground_express/mpconfigboard.h
@@ -3,6 +3,9 @@
 
 #define MICROPY_HW_LED_STATUS   (&pin_PA17)
 
+#define MICROPY_HW_NEOPIXEL         (&pin_PB23)
+#define MICROPY_HW_NEOPIXEL_COUNT   (10)
+
 // Don't allow touch on A0 (PA02), because it's connected to the speaker.
 #define PA02_NO_TOUCH       (true)
 
diff --git a/ports/atmel-samd/boards/circuitplayground_express_crickit/mpconfigboard.h b/ports/atmel-samd/boards/circuitplayground_express_crickit/mpconfigboard.h
index 852e9651b1..5073c5e403 100644
--- a/ports/atmel-samd/boards/circuitplayground_express_crickit/mpconfigboard.h
+++ b/ports/atmel-samd/boards/circuitplayground_express_crickit/mpconfigboard.h
@@ -3,6 +3,9 @@
 
 #define MICROPY_HW_LED_STATUS   (&pin_PA17)
 
+#define MICROPY_HW_NEOPIXEL         (&pin_PB23)
+#define MICROPY_HW_NEOPIXEL_COUNT   (10)
+
 // Don't allow touch on A0 (PA02), because it's connected to the speaker.
 #define PA02_NO_TOUCH       (true)
 
diff --git a/ports/atmel-samd/boards/circuitplayground_express_displayio/mpconfigboard.h b/ports/atmel-samd/boards/circuitplayground_express_displayio/mpconfigboard.h
index a0bb560752..20cfc617a2 100644
--- a/ports/atmel-samd/boards/circuitplayground_express_displayio/mpconfigboard.h
+++ b/ports/atmel-samd/boards/circuitplayground_express_displayio/mpconfigboard.h
@@ -3,6 +3,9 @@
 
 #define MICROPY_HW_LED_STATUS   (&pin_PA17)
 
+#define MICROPY_HW_NEOPIXEL         (&pin_PB23)
+#define MICROPY_HW_NEOPIXEL_COUNT   (10)
+
 // Don't allow touch on A0 (PA02), because it's connected to the speaker.
 #define PA02_NO_TOUCH       (true)
 
diff --git a/ports/nrf/boards/circuitplayground_bluefruit/board.c b/ports/nrf/boards/circuitplayground_bluefruit/board.c
index a0013e7215..938d92aff1 100644
--- a/ports/nrf/boards/circuitplayground_bluefruit/board.c
+++ b/ports/nrf/boards/circuitplayground_bluefruit/board.c
@@ -33,14 +33,7 @@
 #include "nrf_gpio.h"
 
 void board_init(void) {
-}
-
-bool board_requests_safe_mode(void) {
-    return false;
-}
-
-void reset_board(void) {
-    // Turn off board.POWER_SWITCH (power-saving switch) on each soft reload, to prevent confusion.
+    // Turn on power to sensors and neopixels.
     nrf_gpio_cfg(POWER_SWITCH_PIN->number,
         NRF_GPIO_PIN_DIR_OUTPUT,
         NRF_GPIO_PIN_INPUT_DISCONNECT,
@@ -48,6 +41,23 @@ void reset_board(void) {
         NRF_GPIO_PIN_S0S1,
         NRF_GPIO_PIN_NOSENSE);
     nrf_gpio_pin_write(POWER_SWITCH_PIN->number, false);
+}
 
+void board_deinit(void) {
+    // Turn off power to sensors and neopixels.
+    nrf_gpio_cfg(POWER_SWITCH_PIN->number,
+        NRF_GPIO_PIN_DIR_OUTPUT,
+        NRF_GPIO_PIN_INPUT_DISCONNECT,
+        NRF_GPIO_PIN_NOPULL,
+        NRF_GPIO_PIN_S0S1,
+        NRF_GPIO_PIN_NOSENSE);
+    nrf_gpio_pin_write(POWER_SWITCH_PIN->number, true);
+}
+
+bool board_requests_safe_mode(void) {
+    return false;
+}
+
+void reset_board(void) {
     board_reset_user_neopixels(&pin_P0_13, 10);
 }
diff --git a/ports/nrf/boards/circuitplayground_bluefruit/mpconfigboard.h b/ports/nrf/boards/circuitplayground_bluefruit/mpconfigboard.h
index da32230a6f..69bff08761 100644
--- a/ports/nrf/boards/circuitplayground_bluefruit/mpconfigboard.h
+++ b/ports/nrf/boards/circuitplayground_bluefruit/mpconfigboard.h
@@ -32,6 +32,9 @@
 
 #define MICROPY_HW_LED_STATUS       (&pin_P1_14)
 
+#define MICROPY_HW_NEOPIXEL         (&pin_P0_13)
+#define MICROPY_HW_NEOPIXEL_COUNT   (10)
+
 // Board does not have a 32kHz crystal. It does have a 32MHz crystal.
 #define BOARD_HAS_32KHZ_XTAL (0)
 
diff --git a/ports/raspberrypi/boards/arduino_nano_rp2040_connect/mpconfigboard.mk b/ports/raspberrypi/boards/arduino_nano_rp2040_connect/mpconfigboard.mk
index 4eb0ac75b3..4cef8395c5 100644
--- a/ports/raspberrypi/boards/arduino_nano_rp2040_connect/mpconfigboard.mk
+++ b/ports/raspberrypi/boards/arduino_nano_rp2040_connect/mpconfigboard.mk
@@ -7,6 +7,6 @@ USB_MANUFACTURER = "Arduino"
 CHIP_VARIANT = RP2040
 CHIP_FAMILY = rp2
 
-EXTERNAL_FLASH_DEVICES = "AT25SF128A"
+EXTERNAL_FLASH_DEVICES = "AT25SF128A, IS25LP128F"
 
 CIRCUITPY__EVE = 1
diff --git a/ports/stm/boards/STM32F411_nofs.ld b/ports/stm/boards/STM32F411_nofs.ld
new file mode 100644
index 0000000000..3091a59275
--- /dev/null
+++ b/ports/stm/boards/STM32F411_nofs.ld
@@ -0,0 +1,26 @@
+/*
+    GNU linker script for STM32F411 without nvm and an external flash chip.
+    No space is reserved for a filesystem.
+*/
+
+/* Specify the memory areas */
+MEMORY
+{
+    FLASH (rx)          : ORIGIN = 0x08000000, LENGTH = 512K /* entire flash */
+    FLASH_ISR (rx)      : ORIGIN = 0x08000000, LENGTH = 16K /* sector 0 */
+    FLASH_FIRMWARE (rx) : ORIGIN = 0x08004000, LENGTH = 496K /* sectors 1,2,3 are 16k, sector 4 is 64K, sectors 5,6,7 are 128K */
+    RAM (xrw)           : ORIGIN = 0x20000000, LENGTH = 128K
+}
+
+/* produce a link error if there is not this amount of RAM for these sections */
+_minimum_stack_size = 24K;
+_minimum_heap_size = 16K;
+
+/* Define the top end of the stack.  The stack is full descending so begins just
+   above last byte of RAM.  Note that EABI requires the stack to be 8-byte
+   aligned for a call. */
+_estack = ORIGIN(RAM) + LENGTH(RAM);
+
+/* RAM extents for the garbage collector */
+_ram_start = ORIGIN(RAM);
+_ram_end = ORIGIN(RAM) + LENGTH(RAM);
diff --git a/ports/stm/boards/feather_stm32f405_express/pins.c b/ports/stm/boards/feather_stm32f405_express/pins.c
index 1d91bc2f03..74ed49dd3d 100644
--- a/ports/stm/boards/feather_stm32f405_express/pins.c
+++ b/ports/stm/boards/feather_stm32f405_express/pins.c
@@ -50,7 +50,7 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
     { MP_ROM_QSTR(MP_QSTR_SDIO_COMMAND), MP_ROM_PTR(&pin_PD02) },
     { MP_ROM_QSTR(MP_QSTR_SDIO_DATA), MP_ROM_PTR(&sdio_data_tuple) },
 
-    { MP_OBJ_NEW_QSTR(MP_QSTR_CAN_RX),  MP_ROM_PTR(&pin_PB09) },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_CAN_TX),  MP_ROM_PTR(&pin_PB08) },
+    { MP_ROM_QSTR(MP_QSTR_CAN_RX),  MP_ROM_PTR(&pin_PB08) },
+    { MP_ROM_QSTR(MP_QSTR_CAN_TX),  MP_ROM_PTR(&pin_PB09) },
 };
 MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);
diff --git a/ports/stm/boards/stm32f411ce_blackpill_with_flash/mpconfigboard.mk b/ports/stm/boards/stm32f411ce_blackpill_with_flash/mpconfigboard.mk
index 37dccadb99..7ea5fc4a82 100644
--- a/ports/stm/boards/stm32f411ce_blackpill_with_flash/mpconfigboard.mk
+++ b/ports/stm/boards/stm32f411ce_blackpill_with_flash/mpconfigboard.mk
@@ -15,11 +15,4 @@ MCU_VARIANT = STM32F411xE
 MCU_PACKAGE = UFQFPN48
 
 LD_COMMON = boards/common_default.ld
-LD_FILE = boards/STM32F411_nvm_nofs.ld
-
-# Too big for the flash
-CIRCUITPY_AUDIOCORE = 0
-CIRCUITPY_AUDIOPWMIO = 0
-CIRCUITPY_SYNTHIO = 0
-CIRCUITPY_BITMAPTOOLS = 0
-CIRCUITPY_VECTORIO = 0
+LD_FILE = boards/STM32F411_nofs.ld
diff --git a/ports/stm/peripherals/stm32f4/stm32f405xx/periph.c b/ports/stm/peripherals/stm32f4/stm32f405xx/periph.c
index 451e4220c4..cc1aaa6875 100644
--- a/ports/stm/peripherals/stm32f4/stm32f405xx/periph.c
+++ b/ports/stm/peripherals/stm32f4/stm32f405xx/periph.c
@@ -220,7 +220,7 @@ const mcu_periph_obj_t mcu_sdio_data3_list[1] = {
 // CAN
 CAN_TypeDef *mcu_can_banks[2] = {CAN1, CAN2};
 
-const mcu_periph_obj_t mcu_can_tx_list[6] = {
+const mcu_periph_obj_t mcu_can_rx_list[6] = {
     PERIPH(1, 9, &pin_PA11),
     PERIPH(1, 9, &pin_PB08),
     PERIPH(1, 9, &pin_PD00),
@@ -230,7 +230,7 @@ const mcu_periph_obj_t mcu_can_tx_list[6] = {
     PERIPH(2, 9, &pin_PB05),
 };
 
-const mcu_periph_obj_t mcu_can_rx_list[6] = {
+const mcu_periph_obj_t mcu_can_tx_list[6] = {
     PERIPH(1, 9, &pin_PA12),
     PERIPH(1, 9, &pin_PB09),
     PERIPH(1, 9, &pin_PD01),
diff --git a/supervisor/shared/status_leds.c b/supervisor/shared/status_leds.c
index d57aba1973..6c89026223 100644
--- a/supervisor/shared/status_leds.c
+++ b/supervisor/shared/status_leds.c
@@ -39,9 +39,14 @@ static digitalio_digitalinout_obj_t _status_power;
 
 #ifdef MICROPY_HW_NEOPIXEL
 uint8_t rgb_status_brightness = 63;
-    #include "shared-bindings/digitalio/DigitalInOut.h"
-    #include "shared-bindings/neopixel_write/__init__.h"
-static uint8_t status_neopixel_color[3];
+#include "shared-bindings/digitalio/DigitalInOut.h"
+#include "shared-bindings/neopixel_write/__init__.h"
+
+#ifndef MICROPY_HW_NEOPIXEL_COUNT
+#define MICROPY_HW_NEOPIXEL_COUNT (1)
+#endif
+
+static uint8_t status_neopixel_color[3 * MICROPY_HW_NEOPIXEL_COUNT];
 static digitalio_digitalinout_obj_t status_neopixel;
 
 #elif defined(MICROPY_HW_APA102_MOSI) && defined(MICROPY_HW_APA102_SCK)
@@ -240,10 +245,12 @@ void new_status_color(uint32_t rgb) {
     #endif
 
     #ifdef MICROPY_HW_NEOPIXEL
-    status_neopixel_color[0] = (rgb_adjusted >> 8) & 0xff;
-    status_neopixel_color[1] = (rgb_adjusted >> 16) & 0xff;
-    status_neopixel_color[2] = rgb_adjusted & 0xff;
-    common_hal_neopixel_write(&status_neopixel, status_neopixel_color, 3);
+    for (size_t i = 0; i < MICROPY_HW_NEOPIXEL_COUNT; i++) {
+        status_neopixel_color[3 * i + 0] = (rgb_adjusted >> 8) & 0xff;
+        status_neopixel_color[3 * i + 1] = (rgb_adjusted >> 16) & 0xff;
+        status_neopixel_color[3 * i + 2] = rgb_adjusted & 0xff;
+    }
+    common_hal_neopixel_write(&status_neopixel, status_neopixel_color, 3 * MICROPY_HW_NEOPIXEL_COUNT);
 
     #elif defined(MICROPY_HW_APA102_MOSI) && defined(MICROPY_HW_APA102_SCK)
     status_apa102_color[5] = rgb_adjusted & 0xff;