create copy

crypto-aes
Lucian Copeland 3 years ago
parent d988af02d1
commit 53b1544f41
  1. 9
      ports/stm/.gitignore
  2. 284
      ports/stm/Makefile
  3. 3
      ports/stm/README.md
  4. 60
      ports/stm/background.c
  5. 35
      ports/stm/background.h
  6. 107
      ports/stm/boards/STM32F401xd_fs.ld
  7. 106
      ports/stm/boards/STM32F401xe_boot.ld
  8. 107
      ports/stm/boards/STM32F401xe_fs.ld
  9. 107
      ports/stm/boards/STM32F405_boot.ld
  10. 107
      ports/stm/boards/STM32F405_default.ld
  11. 108
      ports/stm/boards/STM32F405_fs.ld
  12. 108
      ports/stm/boards/STM32F407_fs.ld
  13. 109
      ports/stm/boards/STM32F411VETx_FLASH.ld
  14. 105
      ports/stm/boards/STM32F412ZGTx_FLASH.ld
  15. 45
      ports/stm/boards/board.h
  16. 15
      ports/stm/boards/espruino_pico/README.md
  17. 39
      ports/stm/boards/espruino_pico/board.c
  18. 39
      ports/stm/boards/espruino_pico/mpconfigboard.h
  19. 16
      ports/stm/boards/espruino_pico/mpconfigboard.mk
  20. 33
      ports/stm/boards/espruino_pico/pins.c
  21. 440
      ports/stm/boards/espruino_pico/stm32f4xx_hal_conf.h
  22. 15
      ports/stm/boards/espruino_wifi/README.MD
  23. 38
      ports/stm/boards/espruino_wifi/board.c
  24. 36
      ports/stm/boards/espruino_wifi/mpconfigboard.h
  25. 16
      ports/stm/boards/espruino_wifi/mpconfigboard.mk
  26. 39
      ports/stm/boards/espruino_wifi/pins.c
  27. 439
      ports/stm/boards/espruino_wifi/stm32f4xx_hal_conf.h
  28. 39
      ports/stm/boards/feather_stm32f405_express/board.c
  29. 58
      ports/stm/boards/feather_stm32f405_express/mpconfigboard.h
  30. 22
      ports/stm/boards/feather_stm32f405_express/mpconfigboard.mk
  31. 35
      ports/stm/boards/feather_stm32f405_express/pins.c
  32. 440
      ports/stm/boards/feather_stm32f405_express/stm32f4xx_hal_conf.h
  33. 121
      ports/stm/boards/meowbit_v121/board.c
  34. 47
      ports/stm/boards/meowbit_v121/mpconfigboard.h
  35. 24
      ports/stm/boards/meowbit_v121/mpconfigboard.mk
  36. 68
      ports/stm/boards/meowbit_v121/pins.c
  37. 440
      ports/stm/boards/meowbit_v121/stm32f4xx_hal_conf.h
  38. 44
      ports/stm/boards/openocd_stm32f4.cfg
  39. 39
      ports/stm/boards/pyb_nano_v2/board.c
  40. 47
      ports/stm/boards/pyb_nano_v2/mpconfigboard.h
  41. 18
      ports/stm/boards/pyb_nano_v2/mpconfigboard.mk
  42. 59
      ports/stm/boards/pyb_nano_v2/pins.c
  43. 440
      ports/stm/boards/pyb_nano_v2/stm32f4xx_hal_conf.h
  44. 38
      ports/stm/boards/pyboard_v11/board.c
  45. 38
      ports/stm/boards/pyboard_v11/mpconfigboard.h
  46. 16
      ports/stm/boards/pyboard_v11/mpconfigboard.mk
  47. 52
      ports/stm/boards/pyboard_v11/pins.c
  48. 440
      ports/stm/boards/pyboard_v11/stm32f4xx_hal_conf.h
  49. 448
      ports/stm/boards/startup_stm32f401xe.s
  50. 516
      ports/stm/boards/startup_stm32f405xx.s
  51. 516
      ports/stm/boards/startup_stm32f407xx.s
  52. 452
      ports/stm/boards/startup_stm32f411xe.s
  53. 524
      ports/stm/boards/startup_stm32f412zx.s
  54. 39
      ports/stm/boards/stm32f411ce_blackpill/board.c
  55. 48
      ports/stm/boards/stm32f411ce_blackpill/mpconfigboard.h
  56. 21
      ports/stm/boards/stm32f411ce_blackpill/mpconfigboard.mk
  57. 39
      ports/stm/boards/stm32f411ce_blackpill/pins.c
  58. 440
      ports/stm/boards/stm32f411ce_blackpill/stm32f4xx_hal_conf.h
  59. 38
      ports/stm/boards/stm32f411ve_discovery/board.c
  60. 35
      ports/stm/boards/stm32f411ve_discovery/mpconfigboard.h
  61. 16
      ports/stm/boards/stm32f411ve_discovery/mpconfigboard.mk
  62. 106
      ports/stm/boards/stm32f411ve_discovery/pins.c
  63. 439
      ports/stm/boards/stm32f411ve_discovery/stm32f4xx_hal_conf.h
  64. 38
      ports/stm/boards/stm32f412zg_discovery/board.c
  65. 38
      ports/stm/boards/stm32f412zg_discovery/mpconfigboard.h
  66. 22
      ports/stm/boards/stm32f412zg_discovery/mpconfigboard.mk
  67. 94
      ports/stm/boards/stm32f412zg_discovery/pins.c
  68. 438
      ports/stm/boards/stm32f412zg_discovery/stm32f4xx_hal_conf.h
  69. 38
      ports/stm/boards/stm32f4_discovery/board.c
  70. 35
      ports/stm/boards/stm32f4_discovery/mpconfigboard.h
  71. 18
      ports/stm/boards/stm32f4_discovery/mpconfigboard.mk
  72. 107
      ports/stm/boards/stm32f4_discovery/pins.c
  73. 439
      ports/stm/boards/stm32f4_discovery/stm32f4xx_hal_conf.h
  74. 129
      ports/stm/common-hal/analogio/AnalogIn.c
  75. 48
      ports/stm/common-hal/analogio/AnalogIn.h
  76. 124
      ports/stm/common-hal/analogio/AnalogOut.c
  77. 49
      ports/stm/common-hal/analogio/AnalogOut.h
  78. 1
      ports/stm/common-hal/analogio/__init__.c
  79. 25
      ports/stm/common-hal/board/__init__.c
  80. 250
      ports/stm/common-hal/busio/I2C.c
  81. 48
      ports/stm/common-hal/busio/I2C.h
  82. 33
      ports/stm/common-hal/busio/OneWire.h
  83. 470
      ports/stm/common-hal/busio/SPI.c
  84. 55
      ports/stm/common-hal/busio/SPI.h
  85. 626
      ports/stm/common-hal/busio/UART.c
  86. 60
      ports/stm/common-hal/busio/UART.h
  87. 1
      ports/stm/common-hal/busio/__init__.c
  88. 160
      ports/stm/common-hal/digitalio/DigitalInOut.c
  89. 38
      ports/stm/common-hal/digitalio/DigitalInOut.h
  90. 1
      ports/stm/common-hal/digitalio/__init__.c
  91. 68
      ports/stm/common-hal/displayio/ParallelBus.c
  92. 36
      ports/stm/common-hal/displayio/ParallelBus.h
  93. 134
      ports/stm/common-hal/microcontroller/Pin.c
  94. 52
      ports/stm/common-hal/microcontroller/Pin.h
  95. 127
      ports/stm/common-hal/microcontroller/Processor.c
  96. 39
      ports/stm/common-hal/microcontroller/Processor.h
  97. 244
      ports/stm/common-hal/microcontroller/__init__.c
  98. 102
      ports/stm/common-hal/neopixel_write/__init__.c
  99. 95
      ports/stm/common-hal/os/__init__.c
  100. 448
      ports/stm/common-hal/pulseio/PWMOut.c
  101. Some files were not shown because too many files have changed in this diff Show More

@ -0,0 +1,9 @@
# Build files
#####################
build-*/
# Reference files
#####################
ref/
.gdb_history

@ -0,0 +1,284 @@
# This file is part of the MicroPython project, http://micropython.org/
#
# The MIT License (MIT)
#
# Copyright (c) 2019 Dan Halbert for Adafruit Industries
# Copyright (c) 2019 Lucian Copeland 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.
# DEBUG = 1
# Select the board to build for.
ifeq ($(BOARD),)
$(error You must provide a BOARD parameter)
else
ifeq ($(wildcard boards/$(BOARD)/.),)
$(error Invalid BOARD specified)
endif
endif
# If the build directory is not given, make it reflect the board name.
BUILD ?= build-$(BOARD)
include ../../py/mkenv.mk
# Board-specific
include boards/$(BOARD)/mpconfigboard.mk
# Port-specific
include mpconfigport.mk
# CircuitPython-specific
include $(TOP)/py/circuitpy_mpconfig.mk
# qstr definitions (must come before including py.mk)
QSTR_DEFS = qstrdefsport.h
# include py core make definitions
include $(TOP)/py/py.mk
include $(TOP)/supervisor/supervisor.mk
# Include make rules and variables common across CircuitPython builds.
include $(TOP)/py/circuitpy_defns.mk
CROSS_COMPILE = arm-none-eabi-
#######################################
# CFLAGS
#######################################
INC += -I.
INC += -I../..
INC += -I$(BUILD)
INC += -I$(BUILD)/genhdr
INC += -I./stm32f4/STM32F4xx_HAL_Driver/Inc
INC += -I./stm32f4/STM32F4xx_HAL_Driver/Inc/Legacy
INC += -I./stm32f4/CMSIS/Device/ST/STM32F4xx/Include
INC += -I./stm32f4/CMSIS/Include
INC += -I./boards
INC += -I./boards/$(BOARD)
INC += -I./peripherals
INC += -I../../lib/mp-readline
INC += -I../../lib/tinyusb/src
INC += -I../../supervisor/shared/usb
#Debugging/Optimization
ifeq ($(DEBUG), 1)
CFLAGS += -ggdb
# You may want to enable these flags to make setting breakpoints easier.
CFLAGS += -fno-inline -fno-ipa-sra
else
CFLAGS += -Os -DNDEBUG
CFLAGS += -ggdb
# TODO: Test with -flto
### CFLAGS += -flto
endif
C_DEFS = -DMCU_PACKAGE=$(MCU_PACKAGE) -DUSE_HAL_DRIVER -DUSE_FULL_LL_DRIVER -D$(CMSIS_MCU)
CFLAGS += $(INC) -Werror -Wall -std=gnu11 -nostdlib $(BASE_CFLAGS) $(C_DEFS) $(CFLAGS_MOD) $(COPT)
# Undo some warnings.
# STM32 apparently also uses undefined preprocessor variables quite casually,
# so we can't do warning checks for these.
CFLAGS += -Wno-undef
# STM32 might do casts that increase alignment requirements.
CFLAGS += -Wno-cast-align
CFLAGS += \
-mthumb \
-mabi=aapcs-linux \
-mfloat-abi=hard \
-mcpu=cortex-m4 \
-mfpu=fpv4-sp-d16
# TODO: check this
CFLAGS += -D__START=main
#need both command and valid file to use uf2 bootloader
ifndef LD_FILE
ifneq ($(and $(UF2_BOOTLOADER),$(LD_BOOT)),)
LD_FILE = $(LD_BOOT)
BOOTLOADER_OFFSET = $(UF2_OFFSET)
CFLAGS += -DUF2_BOOTLOADER_ENABLED
else
LD_FILE = $(LD_DEFAULT)
endif
endif
# Add bootloader specific items
ifndef BOOTLOADER_OFFSET
BOOTLOADER_OFFSET := 0x8000000
endif
LDFLAGS = $(CFLAGS) -fshort-enums -Wl,-nostdlib -Wl,-T,$(LD_FILE) -Wl,-Map=$@.map -Wl,-cref -Wl,-gc-sections -specs=nano.specs
LIBS := -lgcc -lc
LDFLAGS += -mthumb -mcpu=cortex-m4
# Use toolchain libm if we're not using our own.
ifndef INTERNAL_LIBM
LIBS += -lm
endif
# TinyUSB defines
CFLAGS += -DCFG_TUSB_MCU=OPT_MCU_STM32F4 -DCFG_TUD_CDC_RX_BUFSIZE=1024 -DCFG_TUD_CDC_TX_BUFSIZE=1024 -DCFG_TUD_MSC_BUFSIZE=4096 -DCFG_TUD_MIDI_RX_BUFSIZE=128 -DCFG_TUD_MIDI_TX_BUFSIZE=128
######################################
# source
######################################
SRC_STM32 = \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_adc.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_adc_ex.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dac.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dac_ex.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2c.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_i2c_ex.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_qspi.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rng.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rtc.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rtc_ex.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_spi.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_tim.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_tim_ex.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_uart.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_usart.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash_ex.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash_ramfunc.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_gpio.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma_ex.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr_ex.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_cortex.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_exti.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sd.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_gpio.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_adc.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_fsmc.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_i2c.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_dma.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_sdmmc.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usart.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_rcc.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_utils.c \
stm32f4/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_exti.c \
system_stm32f4xx.c
SRC_C += \
background.c \
fatfs_port.c \
mphalport.c \
tick.c \
boards/$(BOARD)/board.c \
boards/$(BOARD)/pins.c \
peripherals/stm32f4/$(MCU_SUB_VARIANT)/pins.c \
peripherals/stm32f4/$(MCU_SUB_VARIANT)/clocks.c \
peripherals/stm32f4/$(MCU_SUB_VARIANT)/gpio.c \
peripherals/stm32f4/$(MCU_SUB_VARIANT)/periph.c \
lib/libc/string0.c \
lib/mp-readline/readline.c \
lib/oofatfs/ff.c \
lib/oofatfs/option/ccsbcs.c \
lib/timeutils/timeutils.c \
lib/utils/buffer_helper.c \
lib/utils/context_manager_helpers.c \
lib/utils/interrupt_char.c \
lib/utils/pyexec.c \
lib/utils/stdout_helpers.c \
lib/utils/sys_stdio_mphal.c \
supervisor/shared/memory.c
ifneq ($(USB),FALSE)
SRC_C += lib/tinyusb/src/portable/st/synopsys/dcd_synopsys.c
endif
SRC_S = \
supervisor/cpu.s \
boards/startup_$(MCU_SUB_VARIANT).s
SRC_COMMON_HAL_EXPANDED = $(addprefix shared-bindings/, $(SRC_COMMON_HAL)) \
$(addprefix shared-bindings/, $(SRC_BINDINGS_ENUMS)) \
$(addprefix common-hal/, $(SRC_COMMON_HAL))
SRC_SHARED_MODULE_EXPANDED = $(addprefix shared-bindings/, $(SRC_SHARED_MODULE)) \
$(addprefix shared-module/, $(SRC_SHARED_MODULE)) \
$(addprefix shared-module/, $(SRC_SHARED_MODULE_INTERNAL))
ifneq ($(FROZEN_MPY_DIR),)
FROZEN_MPY_PY_FILES := $(shell find -L $(FROZEN_MPY_DIR) -type f -name '*.py')
FROZEN_MPY_MPY_FILES := $(addprefix $(BUILD)/,$(FROZEN_MPY_PY_FILES:.py=.mpy))
endif
OBJ += $(PY_O) $(SUPERVISOR_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
OBJ += $(addprefix $(BUILD)/, $(SRC_STM32:.c=.o))
OBJ += $(addprefix $(BUILD)/, $(SRC_COMMON_HAL_EXPANDED:.c=.o))
OBJ += $(addprefix $(BUILD)/, $(SRC_SHARED_MODULE_EXPANDED:.c=.o))
ifeq ($(INTERNAL_LIBM),1)
OBJ += $(addprefix $(BUILD)/, $(SRC_LIBM:.c=.o))
endif
OBJ += $(addprefix $(BUILD)/, $(SRC_S:.s=.o))
OBJ += $(addprefix $(BUILD)/, $(SRC_MOD:.c=.o))
$(BUILD)/$(FATFS_DIR)/ff.o: COPT += -Os
$(filter $(PY_BUILD)/../extmod/vfs_fat_%.o, $(PY_O)): COPT += -Os
# List of sources for qstr extraction
SRC_QSTR += $(SRC_C) $(SRC_SUPERVISOR) $(SRC_MOD) $(SRC_COMMON_HAL_EXPANDED) $(SRC_SHARED_MODULE_EXPANDED)
# Sources that only hold QSTRs after pre-processing.
SRC_QSTR_PREPROCESSOR +=
all: $(BUILD)/firmware.bin $(BUILD)/firmware.uf2
$(BUILD)/firmware.elf: $(OBJ)
$(STEPECHO) "LINK $@"
$(Q)$(CC) -o $@ $(LDFLAGS) $^ -Wl,--start-group $(LIBS) -Wl,--end-group
$(Q)$(SIZE) $@ | $(PYTHON3) $(TOP)/tools/build_memory_info.py $(LD_FILE)
$(BUILD)/firmware.bin: $(BUILD)/firmware.elf
$(STEPECHO) "Create $@"
$(Q)$(OBJCOPY) -O binary $^ $@
# $(Q)$(OBJCOPY) -O binary -j .vectors -j .text -j .data $^ $@
$(BUILD)/firmware.hex: $(BUILD)/firmware.elf
$(STEPECHO) "Create $@"
$(Q)$(OBJCOPY) -O ihex $^ $@
# $(Q)$(OBJCOPY) -O ihex -j .vectors -j .text -j .data $^ $@
$(BUILD)/firmware.uf2: $(BUILD)/firmware.hex
$(ECHO) "Create $@"
$(PYTHON3) $(TOP)/tools/uf2/utils/uf2conv.py -f 0x57755a57 -b $(BOOTLOADER_OFFSET) -c -o "$(BUILD)/firmware.uf2" $^
include $(TOP)/py/mkrules.mk
# Print out the value of a make variable.
# https://stackoverflow.com/questions/16467718/how-to-print-out-a-variable-in-makefile
print-%:
@echo $* = $($*)

@ -0,0 +1,3 @@
# CircuitPython Port To The ST Microelectronics STM32F4 Series
This is a port of CircuitPython to the STM32F4 series of chips.

@ -0,0 +1,60 @@
/*
* 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 "py/runtime.h"
#include "supervisor/filesystem.h"
#include "supervisor/usb.h"
#include "supervisor/shared/stack.h"
#if CIRCUITPY_DISPLAYIO
#include "shared-module/displayio/__init__.h"
#endif
static bool running_background_tasks = false;
void background_tasks_reset(void) {
running_background_tasks = false;
}
void run_background_tasks(void) {
// Don't call ourselves recursively.
if (running_background_tasks) {
return;
}
running_background_tasks = true;
filesystem_background();
#if USB_AVAILABLE
usb_background();
#endif
#if CIRCUITPY_DISPLAYIO
displayio_background();
#endif
running_background_tasks = false;
assert_heap_ok();
}

@ -0,0 +1,35 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Dan Halbert 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.
*/
#ifndef MICROPY_INCLUDED_STM32F4_BACKGROUND_H
#define MICROPY_INCLUDED_STM32F4_BACKGROUND_H
#include <stdbool.h>
void background_tasks_reset(void);
void run_background_tasks(void);
#endif // MICROPY_INCLUDED_STM32F4_BACKGROUND_H

@ -0,0 +1,107 @@
/*
GNU linker script for STM32F401 with bootloader (such as the Meowbit)
*/
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 384K /* entire flash */
FLASH_ISR (rx) : ORIGIN = 0x08000000, LENGTH = 16K /* sector 0 */
FLASH_FS (rx) : ORIGIN = 0x08004000, LENGTH = 48K /* sectors 1,2,3 are 16K */
FLASH_TEXT (rx) : ORIGIN = 0x08010000, LENGTH = 320K /* sector 4 is 64K, sectors 5,6,7 are 128K */
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 96K
}
/* produce a link error if there is not this amount of RAM for these sections */
_minimum_stack_size = 2K;
_minimum_heap_size = 16K;
/* Define tho 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);
ENTRY(Reset_Handler)
/* define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
/* This first flash block is 16K annd the isr vectors only take up
about 400 bytes. Micropython pads this with files, but this didn't
work with the size of Circuitpython's ff object. */
. = ALIGN(4);
} >FLASH_ISR
/* The program code and other data goes into FLASH */
.text :
{
. = ALIGN(4);
*(.text*) /* .text* sections (code) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
/* *(.glue_7) */ /* glue arm to thumb code */
/* *(.glue_7t) */ /* glue thumb to arm code */
. = ALIGN(4);
_etext = .; /* define a global symbol at end of code */
} >FLASH_TEXT
/* used by the startup to initialize data */
_sidata = LOADADDR(.data);
/* This is the initialized data section
The program executes knowing that the data is in the RAM
but the loader puts the initial values in the FLASH (inidata).
It is one task of the startup to copy the initial values from FLASH to RAM. */
.data :
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */
*(.data*) /* .data* sections */
. = ALIGN(4);
_edata = .; /* define a global symbol at data end; used by startup code in order to initialise the .data section in RAM */
} >RAM AT> FLASH_TEXT
/* Uninitialized data section */
.bss :
{
. = ALIGN(4);
_sbss = .; /* define a global symbol at bss start; used by startup code */
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end; used by startup code and GC */
} >RAM
/* this is to define the start of the heap, and make sure we have a minimum size */
.heap :
{
. = ALIGN(4);
. = . + _minimum_heap_size;
. = ALIGN(4);
} >RAM
/* this just checks there is enough RAM for the stack */
.stack :
{
. = ALIGN(4);
. = . + _minimum_stack_size;
. = ALIGN(4);
} >RAM
.ARM.attributes 0 : { *(.ARM.attributes) }
}

@ -0,0 +1,106 @@
/*
GNU linker script for STM32F401 with bootloader (such as the Meowbit)
*/
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08010000, LENGTH = 512K - 64K /* entire flash, sans bootloader region */
FLASH_ISR (rx) : ORIGIN = 0x08010000, LENGTH = 64K /* sector 4 */
FLASH_TEXT (rx) : ORIGIN = 0x08020000, LENGTH = 384K /* sectors 5,6,7 are 128K */
RAM (xrw) : ORIGIN = 0x20000194, LENGTH = 96K - 0x194
}
/* produce a link error if there is not this amount of RAM for these sections */
_minimum_stack_size = 2K;
_minimum_heap_size = 16K;
/* Define tho 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);
ENTRY(Reset_Handler)
/* define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
/* This first flash block is 16K annd the isr vectors only take up
about 400 bytes. Micropython pads this with files, but this didn't
work with the size of Circuitpython's ff object. */
. = ALIGN(4);
} >FLASH_ISR
/* The program code and other data goes into FLASH */
.text :
{
. = ALIGN(4);
*(.text*) /* .text* sections (code) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
/* *(.glue_7) */ /* glue arm to thumb code */
/* *(.glue_7t) */ /* glue thumb to arm code */
. = ALIGN(4);
_etext = .; /* define a global symbol at end of code */
} >FLASH_TEXT
/* used by the startup to initialize data */
_sidata = LOADADDR(.data);
/* This is the initialized data section
The program executes knowing that the data is in the RAM
but the loader puts the initial values in the FLASH (inidata).
It is one task of the startup to copy the initial values from FLASH to RAM. */
.data :
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */
*(.data*) /* .data* sections */
. = ALIGN(4);
_edata = .; /* define a global symbol at data end; used by startup code in order to initialise the .data section in RAM */
} >RAM AT> FLASH_TEXT
/* Uninitialized data section */
.bss :
{
. = ALIGN(4);
_sbss = .; /* define a global symbol at bss start; used by startup code */
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end; used by startup code and GC */
} >RAM
/* this is to define the start of the heap, and make sure we have a minimum size */
.heap :
{
. = ALIGN(4);
. = . + _minimum_heap_size;
. = ALIGN(4);
} >RAM
/* this just checks there is enough RAM for the stack */
.stack :
{
. = ALIGN(4);
. = . + _minimum_stack_size;
. = ALIGN(4);
} >RAM
.ARM.attributes 0 : { *(.ARM.attributes) }
}

@ -0,0 +1,107 @@
/*
GNU linker script for STM32F401 with bootloader (such as the Meowbit)
*/
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 512K /* entire flash */
FLASH_ISR (rx) : ORIGIN = 0x08000000, LENGTH = 16K /* sector 0 */
FLASH_FS (rx) : ORIGIN = 0x08004000, LENGTH = 48K /* sectors 1,2,3 are 16K */
FLASH_TEXT (rx) : ORIGIN = 0x08010000, LENGTH = 448K /* sector 4 is 64K, sectors 5,6,7 are 128K */
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 96K
}
/* produce a link error if there is not this amount of RAM for these sections */
_minimum_stack_size = 2K;
_minimum_heap_size = 16K;
/* Define tho 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);
ENTRY(Reset_Handler)
/* define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
/* This first flash block is 16K annd the isr vectors only take up
about 400 bytes. Micropython pads this with files, but this didn't
work with the size of Circuitpython's ff object. */
. = ALIGN(4);
} >FLASH_ISR
/* The program code and other data goes into FLASH */
.text :
{
. = ALIGN(4);
*(.text*) /* .text* sections (code) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
/* *(.glue_7) */ /* glue arm to thumb code */
/* *(.glue_7t) */ /* glue thumb to arm code */
. = ALIGN(4);
_etext = .; /* define a global symbol at end of code */
} >FLASH_TEXT
/* used by the startup to initialize data */
_sidata = LOADADDR(.data);
/* This is the initialized data section
The program executes knowing that the data is in the RAM
but the loader puts the initial values in the FLASH (inidata).
It is one task of the startup to copy the initial values from FLASH to RAM. */
.data :
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */
*(.data*) /* .data* sections */
. = ALIGN(4);
_edata = .; /* define a global symbol at data end; used by startup code in order to initialise the .data section in RAM */
} >RAM AT> FLASH_TEXT
/* Uninitialized data section */
.bss :
{
. = ALIGN(4);
_sbss = .; /* define a global symbol at bss start; used by startup code */
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end; used by startup code and GC */
} >RAM
/* this is to define the start of the heap, and make sure we have a minimum size */
.heap :
{
. = ALIGN(4);
. = . + _minimum_heap_size;
. = ALIGN(4);
} >RAM
/* this just checks there is enough RAM for the stack */
.stack :
{
. = ALIGN(4);
. = . + _minimum_stack_size;
. = ALIGN(4);
} >RAM
.ARM.attributes 0 : { *(.ARM.attributes) }
}

@ -0,0 +1,107 @@
/*
GNU linker script for STM32F405 with bootloader
Based on Micropython
*/
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08010000, LENGTH = 1024K - 64K /* entire flash, sans bootloader region */
FLASH_ISR (rx) : ORIGIN = 0x08010000, LENGTH = 64K /* sector 0 */
FLASH_TEXT (rx) : ORIGIN = 0x08020000, LENGTH = 1024K - 64K - 64K /* sectors 5+ */
CCMRAM (xrw) : ORIGIN = 0x10000000, LENGTH = 64K
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K
}
/* produce a link error if there is not this amount of RAM for these sections */
_minimum_stack_size = 2K;
_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);
ENTRY(Reset_Handler)
/* define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
/* This first flash block is 16K annd the isr vectors only take up
about 400 bytes. Micropython pads this with files, but this didn't
work with the size of Circuitpython's ff object. */
. = ALIGN(4);
} >FLASH_ISR
/* The program code and other data goes into FLASH */
.text :
{
. = ALIGN(4);
*(.text*) /* .text* sections (code) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
/* *(.glue_7) */ /* glue arm to thumb code */
/* *(.glue_7t) */ /* glue thumb to arm code */
. = ALIGN(4);
_etext = .; /* define a global symbol at end of code */
} >FLASH_TEXT
/* used by the startup to initialize data */
_sidata = LOADADDR(.data);
/* This is the initialized data section
The program executes knowing that the data is in the RAM
but the loader puts the initial values in the FLASH (inidata).
It is one task of the startup to copy the initial values from FLASH to RAM. */
.data :
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */
*(.data*) /* .data* sections */
. = ALIGN(4);
_edata = .; /* define a global symbol at data end; used by startup code in order to initialise the .data section in RAM */
} >RAM AT> FLASH_TEXT
/* Uninitialized data section */
.bss :
{
. = ALIGN(4);
_sbss = .; /* define a global symbol at bss start; used by startup code */
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end; used by startup code and GC */
} >RAM
/* this is to define the start of the heap, and make sure we have a minimum size */
.heap :
{
. = ALIGN(4);
. = . + _minimum_heap_size;
. = ALIGN(4);
} >RAM
/* this just checks there is enough RAM for the stack */
.stack :
{
. = ALIGN(4);
. = . + _minimum_stack_size;
. = ALIGN(4);
} >RAM
.ARM.attributes 0 : { *(.ARM.attributes) }
}

@ -0,0 +1,107 @@
/*
GNU linker script for STM32F405 via Micropython
*/
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 1024K /* entire flash */
FLASH_ISR (rx) : ORIGIN = 0x08000000, LENGTH = 16K /* sector 0 */
FLASH_TEXT (rx) : ORIGIN = 0x08004000, LENGTH = 1008K /* sectors 0-7*/
CCMRAM (xrw) : ORIGIN = 0x10000000, LENGTH = 64K
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K
}
/* produce a link error if there is not this amount of RAM for these sections */
_minimum_stack_size = 2K;
_minimum_heap_size = 16K;
/* Define tho 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);
ENTRY(Reset_Handler)
/* define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
/* This first flash block is 16K annd the isr vectors only take up
about 400 bytes. Micropython pads this with files, but this didn't
work with the size of Circuitpython's ff object. */
. = ALIGN(4);
} >FLASH_ISR
/* The program code and other data goes into FLASH */
.text :
{
. = ALIGN(4);
*(.text*) /* .text* sections (code) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
/* *(.glue_7) */ /* glue arm to thumb code */
/* *(.glue_7t) */ /* glue thumb to arm code */
. = ALIGN(4);
_etext = .; /* define a global symbol at end of code */
} >FLASH_TEXT
/* used by the startup to initialize data */
_sidata = LOADADDR(.data);
/* This is the initialized data section
The program executes knowing that the data is in the RAM
but the loader puts the initial values in the FLASH (inidata).
It is one task of the startup to copy the initial values from FLASH to RAM. */
.data :
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */
*(.data*) /* .data* sections */
. = ALIGN(4);
_edata = .; /* define a global symbol at data end; used by startup code in order to initialise the .data section in RAM */
} >RAM AT> FLASH_TEXT
/* Uninitialized data section */
.bss :
{
. = ALIGN(4);
_sbss = .; /* define a global symbol at bss start; used by startup code */
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end; used by startup code and GC */
} >RAM
/* this is to define the start of the heap, and make sure we have a minimum size */
.heap :
{
. = ALIGN(4);
. = . + _minimum_heap_size;
. = ALIGN(4);
} >RAM
/* this just checks there is enough RAM for the stack */
.stack :
{
. = ALIGN(4);
. = . + _minimum_stack_size;
. = ALIGN(4);
} >RAM
.ARM.attributes 0 : { *(.ARM.attributes) }
}

@ -0,0 +1,108 @@
/*
GNU linker script for STM32F405 via Micropython
*/
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 1024K /* entire flash */
FLASH_ISR (rx) : ORIGIN = 0x08000000, LENGTH = 16K /* sector 0 */
FLASH_FS (rx) : ORIGIN = 0x08004000, LENGTH = 48K /* sectors 1,2,3 are 16K */
FLASH_TEXT (rx) : ORIGIN = 0x08010000, LENGTH = 960K /* sector 4 is 64K, sectors 5,6,7 are 128K */
CCMRAM (xrw) : ORIGIN = 0x10000000, LENGTH = 64K
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K
}
/* produce a link error if there is not this amount of RAM for these sections */
_minimum_stack_size = 2K;
_minimum_heap_size = 16K;
/* Define tho 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);
ENTRY(Reset_Handler)
/* define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
/* This first flash block is 16K annd the isr vectors only take up
about 400 bytes. Micropython pads this with files, but this didn't
work with the size of Circuitpython's ff object. */
. = ALIGN(4);
} >FLASH_ISR
/* The program code and other data goes into FLASH */
.text :
{
. = ALIGN(4);
*(.text*) /* .text* sections (code) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
/* *(.glue_7) */ /* glue arm to thumb code */
/* *(.glue_7t) */ /* glue thumb to arm code */
. = ALIGN(4);
_etext = .; /* define a global symbol at end of code */
} >FLASH_TEXT
/* used by the startup to initialize data */
_sidata = LOADADDR(.data);
/* This is the initialized data section
The program executes knowing that the data is in the RAM
but the loader puts the initial values in the FLASH (inidata).
It is one task of the startup to copy the initial values from FLASH to RAM. */
.data :
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */
*(.data*) /* .data* sections */
. = ALIGN(4);
_edata = .; /* define a global symbol at data end; used by startup code in order to initialise the .data section in RAM */
} >RAM AT> FLASH_TEXT
/* Uninitialized data section */
.bss :
{
. = ALIGN(4);
_sbss = .; /* define a global symbol at bss start; used by startup code */
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end; used by startup code and GC */
} >RAM
/* this is to define the start of the heap, and make sure we have a minimum size */
.heap :
{
. = ALIGN(4);
. = . + _minimum_heap_size;
. = ALIGN(4);
} >RAM
/* this just checks there is enough RAM for the stack */
.stack :
{
. = ALIGN(4);
. = . + _minimum_stack_size;
. = ALIGN(4);
} >RAM
.ARM.attributes 0 : { *(.ARM.attributes) }
}

@ -0,0 +1,108 @@
/*
GNU linker script for STM32F405 via Micropython
*/
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 1024K /* entire flash */
FLASH_ISR (rx) : ORIGIN = 0x08000000, LENGTH = 16K /* sector 0 */
FLASH_FS (rx) : ORIGIN = 0x08004000, LENGTH = 48K /* sectors 1,2,3 are 16K */
FLASH_TEXT (rx) : ORIGIN = 0x08010000, LENGTH = 960K /* sector 4 is 64K, sectors 5,6,7 are 128K */
CCMRAM (xrw) : ORIGIN = 0x10000000, LENGTH = 64K
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K
}
/* produce a link error if there is not this amount of RAM for these sections */
_minimum_stack_size = 2K;
_minimum_heap_size = 16K;
/* Define tho 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);
ENTRY(Reset_Handler)
/* define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
/* This first flash block is 16K annd the isr vectors only take up
about 400 bytes. Micropython pads this with files, but this didn't
work with the size of Circuitpython's ff object. */
. = ALIGN(4);
} >FLASH_ISR
/* The program code and other data goes into FLASH */
.text :
{
. = ALIGN(4);
*(.text*) /* .text* sections (code) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
/* *(.glue_7) */ /* glue arm to thumb code */
/* *(.glue_7t) */ /* glue thumb to arm code */
. = ALIGN(4);
_etext = .; /* define a global symbol at end of code */
} >FLASH_TEXT
/* used by the startup to initialize data */
_sidata = LOADADDR(.data);
/* This is the initialized data section
The program executes knowing that the data is in the RAM
but the loader puts the initial values in the FLASH (inidata).
It is one task of the startup to copy the initial values from FLASH to RAM. */
.data :
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */
*(.data*) /* .data* sections */
. = ALIGN(4);
_edata = .; /* define a global symbol at data end; used by startup code in order to initialise the .data section in RAM */
} >RAM AT> FLASH_TEXT
/* Uninitialized data section */
.bss :
{
. = ALIGN(4);
_sbss = .; /* define a global symbol at bss start; used by startup code */
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end; used by startup code and GC */
} >RAM
/* this is to define the start of the heap, and make sure we have a minimum size */
.heap :
{
. = ALIGN(4);
. = . + _minimum_heap_size;
. = ALIGN(4);
} >RAM
/* this just checks there is enough RAM for the stack */
.stack :
{
. = ALIGN(4);
. = . + _minimum_stack_size;
. = ALIGN(4);
} >RAM
.ARM.attributes 0 : { *(.ARM.attributes) }
}

@ -0,0 +1,109 @@
/*
GNU linker script for STM32F411 via Micropython
*/
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 512K /* entire flash */
FLASH_ISR (rx) : ORIGIN = 0x08000000, LENGTH = 16K /* sector 0 */
FLASH_FS (rx) : ORIGIN = 0x08004000, LENGTH = 48K /* sectors 1,2,3 are 16K */
FLASH_TEXT (rx) : ORIGIN = 0x08010000, LENGTH = 448K /* 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 = 2K;
_minimum_heap_size = 16K;
/* Define tho 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);
_heap_start = _ebss; /* heap starts just after statically allocated memory */
_heap_end = 0x2001c000; /* tunable */
ENTRY(Reset_Handler)
/* define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
/* This first flash block is 16K annd the isr vectors only take up
about 400 bytes. Micropython pads this with files, but this didn't
work with the size of Circuitpython's ff object. */
. = ALIGN(4);
} >FLASH_ISR
/* The program code and other data goes into FLASH */
.text :
{
. = ALIGN(4);
*(.text*) /* .text* sections (code) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
/* *(.glue_7) */ /* glue arm to thumb code */
/* *(.glue_7t) */ /* glue thumb to arm code */
. = ALIGN(4);
_etext = .; /* define a global symbol at end of code */
} >FLASH_TEXT
/* used by the startup to initialize data */
_sidata = LOADADDR(.data);
/* This is the initialized data section
The program executes knowing that the data is in the RAM
but the loader puts the initial values in the FLASH (inidata).
It is one task of the startup to copy the initial values from FLASH to RAM. */
.data :
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */
*(.data*) /* .data* sections */
. = ALIGN(4);
_edata = .; /* define a global symbol at data end; used by startup code in order to initialise the .data section in RAM */
} >RAM AT> FLASH_TEXT
/* Uninitialized data section */
.bss :
{
. = ALIGN(4);
_sbss = .; /* define a global symbol at bss start; used by startup code */
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end; used by startup code and GC */
} >RAM
/* this is to define the start of the heap, and make sure we have a minimum size */
.heap :
{
. = ALIGN(4);
. = . + _minimum_heap_size;
. = ALIGN(4);
} >RAM
/* this just checks there is enough RAM for the stack */
.stack :
{
. = ALIGN(4);
. = . + _minimum_stack_size;
. = ALIGN(4);
} >RAM
.ARM.attributes 0 : { *(.ARM.attributes) }
}

@ -0,0 +1,105 @@
/*
GNU linker script for STM32F412
*/
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 1024K /* entire flash */
FLASH_ISR (rx) : ORIGIN = 0x08000000, LENGTH = 16K /* sector 0 */
FLASH_FS (rx) : ORIGIN = 0x08004000, LENGTH = 48K /* sectors 1,2,3 are 16K */
FLASH_TEXT (rx) : ORIGIN = 0x08010000, LENGTH = 960K /* sector 4 is 64K, sectors 5,6,7 are 128K */
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 256K
}
/* produce a link error if there is not this amount of RAM for these sections */
_minimum_stack_size = 2K;
_minimum_heap_size = 16K;
/* Define tho 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);
_heap_start = _ebss; /* heap starts just after statically allocated memory */
_heap_end = 0x20020000; /* tunable */
ENTRY(Reset_Handler)
/* define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
/* This first flash block is 16K annd the isr vectors only take up
about 400 bytes. Micropython pads this with files, but this didn't
work with the size of Circuitpython's ff object. */
. = ALIGN(4);
} >FLASH_ISR
/* The program code and other data goes into FLASH */
.text :
{
. = ALIGN(4);
*(.text*) /* .text* sections (code) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
. = ALIGN(4);
_etext = .; /* define a global symbol at end of code */
} >FLASH_TEXT
/* used by the startup to initialize data */
_sidata = LOADADDR(.data);
/* This is the initialized data section
The program executes knowing that the data is in the RAM
but the loader puts the initial values in the FLASH (inidata).
It is one task of the startup to copy the initial values from FLASH to RAM. */
.data :
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */
*(.data*) /* .data* sections */
. = ALIGN(4);
_edata = .; /* define a global symbol at data end; used by startup code in order to initialise the .data section in RAM */
} >RAM AT> FLASH_TEXT
/* Uninitialized data section */
.bss :
{
. = ALIGN(4);
_sbss = .; /* define a global symbol at bss start; used by startup code */
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end; used by startup code and GC */
} >RAM
/* this is to define the start of the heap, and make sure we have a minimum size */
.heap :
{
. = ALIGN(4);
. = . + _minimum_heap_size;
. = ALIGN(4);
} >RAM
/* this just checks there is enough RAM for the stack */
.stack :
{
. = ALIGN(4);
. = . + _minimum_stack_size;
. = ALIGN(4);
} >RAM
.ARM.attributes 0 : { *(.ARM.attributes) }
}

@ -0,0 +1,45 @@
/*
* 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.
*/
// This file defines board specific functions.
#ifndef MICROPY_INCLUDED_STM32F4_BOARDS_BOARD_H
#define MICROPY_INCLUDED_STM32F4_BOARDS_BOARD_H
#include <stdbool.h>
// Initializes board related state once on start up.
void board_init(void);
// Returns true if the user initiates safe mode in a board specific way.
// Also add BOARD_USER_SAFE_MODE in mpconfigboard.h to explain the board specific
// way.
bool board_requests_safe_mode(void);
// Reset the state of off MCU components such as neopixels.
void reset_board(void);
#endif // MICROPY_INCLUDED_STM32F4_BOARDS_BOARD_H

@ -0,0 +1,15 @@
# Flashing the Espruino Pico
The Espruino Pico is normally updated via a bootloader activated by the Espruino web app. This approach is not practical for Circuitpython as it takes too much space from the internal filesystem - thus, you will need to follow the instructions for advanced reflashing using the built-in ROM bootloader on all STM32F4 MCUs (instructions sourced from https://www.espruino.com/Pico#advanced-reflashing)
- Short out the BOOT0/BTN solder jumper on the back of the board - you can do this by drawing over it with a pencil.
- Install ST's DFU utility on Windows, or dfu-util for Mac or Linux
- **Mac**: install with Homebrew: `brew install dfu-util`
- **Linux**: install with apt-get: `sudo apt-get install dfu-util`
- **Windows**: download [ST's application](https://www.st.com/en/development-tools/stsw-stm32080.html) or install the Linux subsystem for Windows 10 and follow the linux instructions.
- Hold down the Pico's button while plugging it into USB (when overwriting Espruino's default firmware)
- Navigate to the same directory as your firmware.bin file for Circuitpython and run the following command: `sudo dfu-util -a 0 -s 0x08000000 -D firmware.bin` or use the ST utility on Windows.
- Restart the board.
To reinstall Espruino, follow the same steps with the latest Espruino Pico binary from espruino.com/binaries. This will reinstall the usual Espruino bootloader. You must un-short the BOOT0/BTN jumper to re-use the original Espruino Bootloader again. If you used a Pencil mark then you may need to use cleaning fluid and a small brush to totally clear out the graphite.

@ -0,0 +1,39 @@
/*
* 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 "mpconfigboard.h"
void board_init(void) {
}
bool board_requests_safe_mode(void) {
return false;
}
void reset_board(void) {
}

@ -0,0 +1,39 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Lucian Copeland 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.
*/