Merge pull request #2339 from hathach/move-build-file

Move build file from tools/ to examples/build_system

.github/workflows/build_aarch64.yml

@@ -73,7 +73,7 @@ jobs:
       run: python3 tools/get_deps.py ${{ matrix.family }}
 
     - name: Build
-      run: python3 tools/build_family.py ${{ matrix.family }}
+      run: python3 tools/build_make.py ${{ matrix.family }}
 
     - name: Linker Map
       run: |

.github/workflows/build_arm.yml

@@ -66,7 +66,7 @@ jobs:
       run: python3 tools/get_deps.py ${{ matrix.family }}
 
     - name: Build
-      run: python3 tools/build_family.py ${{ matrix.family }}
+      run: python3 tools/build_make.py ${{ matrix.family }}
 
     - name: Linker Map
       run: |

.github/workflows/build_msp430.yml

@@ -71,7 +71,7 @@ jobs:
       run: python3 tools/get_deps.py ${{ matrix.family }}
 
     - name: Build
-      run: python3 tools/build_family.py ${{ matrix.family }}
+      run: python3 tools/build_make.py ${{ matrix.family }}
 
     - name: Linker Map
       run: |

.github/workflows/build_renesas.yml

@@ -71,7 +71,7 @@ jobs:
       run: python3 tools/get_deps.py ${{ matrix.family }}
 
     - name: Build
-      run: python3 tools/build_family.py ${{ matrix.family }}
+      run: python3 tools/build_make.py ${{ matrix.family }}
 
     - name: Linker Map
       run: |

.github/workflows/build_riscv.yml

@@ -72,7 +72,7 @@ jobs:
       run: python3 tools/get_deps.py ${{ matrix.family }}
 
     - name: Build
-      run: python3 tools/build_family.py ${{ matrix.family }}
+      run: python3 tools/build_make.py ${{ matrix.family }}
 
     - name: Linker Map
       run: |

.github/workflows/build_win_mac.yml

@@ -51,4 +51,4 @@ jobs:
       run: python3 tools/get_deps.py stm32f4
 
     - name: Build
-      run: python3 tools/build_family.py stm32f4 stm32f411disco
+      run: python3 tools/build_make.py stm32f4 stm32f411disco

.idea/cmake.xml

@@ -63,7 +63,7 @@
       <configuration PROFILE_NAME="stm32f411disco" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32f411disco -DLOG=2 -DLOGGER=RTT" />
       <configuration PROFILE_NAME="stm32f769disco" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32f769disco -DLOG=3 -DLOGGER=RTT" />
       <configuration PROFILE_NAME="stm32h743eval" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32h743eval -DLOG=3 -DLOGGER=RTT -DTRACE_ETM=1" />
-      <configuration PROFILE_NAME="stm32h743nucleo" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32h743nucleo -DLOG=3 -DLOGGER=RTT" />
+      <configuration PROFILE_NAME="stm32h743nucleo" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32h743nucleo -DLOG=3" />
       <configuration PROFILE_NAME="stm32l476disco" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32l476disco" />
       <configuration PROFILE_NAME="stm32g0b1nucleo" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32g0b1nucleo" />
       <configuration PROFILE_NAME="stm32g474nucleo" ENABLED="false" CONFIG_NAME="Debug" GENERATION_OPTIONS="-DBOARD=stm32g474nucleo" />

examples/build_system/cmake/toolchain/arm_gcc.cmake

@@ -29,7 +29,7 @@ list(APPEND TOOLCHAIN_COMMON_FLAGS
   -fno-strict-aliasing
   )
 
-set(TOOLCHAIN_EXE_LINKER_FLAGS
+list(APPEND TOOLCHAIN_EXE_LINKER_FLAGS
   -Wl,--print-memory-usage
   -Wl,--gc-sections
   -Wl,--cref

examples/build_system/make/cpu/cortex-m23.mk

@@ -0,0 +1,14 @@
+ifeq ($(TOOLCHAIN),gcc)
+  CFLAGS += \
+    -mthumb \
+    -mcpu=cortex-m23 \
+    -mfloat-abi=soft \
+
+else ifeq ($(TOOLCHAIN),iar)
+  # IAR Flags
+  CFLAGS += --cpu cortex-m23
+  ASFLAGS += --cpu cortex-m23
+endif
+
+# For freeRTOS port source
+FREERTOS_PORTABLE_SRC ?= $(FREERTOS_PORTABLE_PATH)/ARM_CM23

examples/build_system/make/make.mk

@@ -2,19 +2,15 @@
 # Common make definition for all examples
 # ---------------------------------------
 
-# Supported toolchain: gcc, iar
-TOOLCHAIN ?= gcc
-
 #-------------- TOP and CURRENT_PATH ------------
 
-# Set TOP to be the path to get from the current directory (where make was
+# Set TOP to be the path to get from the current directory (where make was invoked) to the top of the tree.
-# invoked) to the top of the tree. $(lastword $(MAKEFILE_LIST)) returns
+# $(lastword $(MAKEFILE_LIST)) returns the name of this makefile relative to where make was invoked.
-# the name of this makefile relative to where make was invoked.
 THIS_MAKEFILE := $(lastword $(MAKEFILE_LIST))
 
-# strip off /tools/top.mk to get for example ../../..
+# strip off /examples/build_system/make to get for example ../../..
 # and Set TOP to an absolute path
-TOP = $(abspath $(subst make.mk,..,$(THIS_MAKEFILE)))
+TOP = $(abspath $(subst make.mk,../../..,$(THIS_MAKEFILE)))
 
 # Set CURRENT_PATH to the relative path from TOP to the current directory, ie examples/device/cdc_msc_freertos
 CURRENT_PATH = $(subst $(TOP)/,,$(abspath .))
@@ -38,7 +34,6 @@ __check_defined = \
     $(if $(value $1),, \
     $(error Undefined make flag: $1$(if $2, ($2))))
 
-
 # Build directory
 BUILD := _build/$(BOARD)
 
@@ -73,7 +68,10 @@ else
   SRC_C += $(subst $(TOP)/,,$(wildcard $(TOP)/$(FAMILY_PATH)/*.c))
 endif
 
-#-------------- Cross Compiler  ------------
+#-------------- Toolchain  ------------
+
+# Supported toolchain: gcc, iar
+TOOLCHAIN ?= gcc
 
 # Can be set by board, default to ARM GCC
 CROSS_COMPILE ?= arm-none-eabi-
@@ -139,8 +137,8 @@ endif
 
 # CPU specific flags
 ifdef CPU_CORE
-include $(TOP)/tools/make/cpu/$(CPU_CORE).mk
+  include ${TOP}/examples/build_system/make/cpu/$(CPU_CORE).mk
 endif
 
 # toolchain specific
-include $(TOP)/tools/make/toolchain/arm_$(TOOLCHAIN).mk
+include ${TOP}/examples/build_system/make/toolchain/arm_$(TOOLCHAIN).mk

examples/build_system/make/rules.mk

@@ -37,7 +37,7 @@ vpath %.c . $(TOP)
 vpath %.s . $(TOP)
 vpath %.S . $(TOP)
 
-include $(TOP)/tools/make/toolchain/arm_$(TOOLCHAIN)_rules.mk
+include ${TOP}/examples/build_system/make/toolchain/arm_$(TOOLCHAIN)_rules.mk
 
 
 OBJ_DIRS = $(sort $(dir $(OBJ)))

examples/build_system/make/toolchain/arm_gcc.mk

@@ -9,6 +9,9 @@ GDB = $(CROSS_COMPILE)gdb
 OBJCOPY = $(CROSS_COMPILE)objcopy
 SIZE = $(CROSS_COMPILE)size
 
+CC_VERSION := $(shell $(CC) -dumpversion)
+CC_VERSION_MAJOR = $(firstword $(subst ., ,$(CC_VERSION)))
+
 # ---------------------------------------
 # Compiler Flags
 # ---------------------------------------
@@ -65,7 +68,12 @@ LDFLAGS += \
   -Wl,-cref \
   -Wl,-gc-sections \
 
-# Some toolchain such as renesas rx does not support --print-memory-usage flags
+# renesas rx does not support --print-memory-usage flags
 ifneq ($(FAMILY),rx)
 LDFLAGS += -Wl,--print-memory-usage
 endif
+
+# from version 12
+ifeq ($(shell expr $(CC_VERSION_MAJOR) \>= 12),1)
+LDFLAGS += -Wl,--no-warn-rwx-segment
+endif

examples/build_system/make/toolchain/arm_gcc_rules.mk

@@ -31,10 +31,6 @@ ifdef LD_FILE_GCC
 LDFLAGS += -Wl,-T,$(TOP)/$(LD_FILE_GCC)
 endif
 
-ifneq ($(SKIP_NANOLIB), 1)
-LDFLAGS += --specs=nosys.specs --specs=nano.specs
-endif
-
 ASFLAGS += $(CFLAGS)
 
 LIBS_GCC ?= -lgcc -lm -lnosys

examples/device/audio_4_channel_mic/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -11,4 +11,4 @@ EXAMPLE_SOURCE += \
 
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/audio_test/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/audio_test_multi_rate/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/board_test/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/cdc_dual_ports/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/cdc_msc/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -12,4 +12,4 @@ EXAMPLE_SOURCE += \
 
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/cdc_msc_freertos/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 FREERTOS_SRC = lib/FreeRTOS-Kernel
 FREERTOS_PORTABLE_PATH= $(FREERTOS_SRC)/portable/$(if $(USE_IAR),IAR,GCC)
@@ -43,4 +43,4 @@ CFLAGS_GCC += -Wno-error=cast-qual
 # FreeRTOS (lto + Os) linker issue
 LDFLAGS_GCC += -Wl,--undefined=vTaskSwitchContext
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/cdc_uac2/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -13,4 +13,4 @@ EXAMPLE_SOURCE += \
 
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/dfu/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -11,4 +11,4 @@ EXAMPLE_SOURCE = \
 
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/dfu_runtime/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/dynamic_configuration/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/hid_boot_interface/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -11,4 +11,4 @@ EXAMPLE_SOURCE = \
 
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/hid_composite/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/hid_composite_freertos/Makefile

@@ -1,6 +1,6 @@
 DEPS_SUBMODULES += lib/FreeRTOS-Kernel
 
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 FREERTOS_SRC = lib/FreeRTOS-Kernel
 FREERTOS_PORTABLE_PATH= $(FREERTOS_SRC)/portable/$(if $(USE_IAR),IAR,GCC)
@@ -44,4 +44,4 @@ CFLAGS_GCC += -Wno-error=cast-qual
 # FreeRTOS (lto + Os) linker issue
 LDFLAGS_GCC += -Wl,--undefined=vTaskSwitchContext
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/hid_generic_inout/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/hid_multiple_interface/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/midi_test/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/msc_dual_lun/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/net_lwip_webserver/Makefile

@@ -1,6 +1,6 @@
 DEPS_SUBMODULES += lib/lwip
 
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 # suppress warning caused by lwip
 CFLAGS_GCC += \
@@ -67,4 +67,4 @@ SRC_C += \
   lib/networking/dnserver.c \
   lib/networking/rndis_reports.c
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/uac2_headset/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/usbtmc/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/video_capture/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 ifeq ($(DISABLE_MJPEG),1)
 CFLAGS += -DCFG_EXAMPLE_VIDEO_DISABLE_MJPEG
@@ -15,4 +15,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/device/webusb_serial/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/dual/host_hid_to_device_cdc/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -15,4 +15,4 @@ SRC_C += \
 	src/host/hub.c \
 	src/host/usbh.c
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/host/bare_api/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -10,4 +10,4 @@ EXAMPLE_SOURCE += \
 
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/host/cdc_msc_hid/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -13,4 +13,4 @@ EXAMPLE_SOURCE = \
 
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/host/cdc_msc_hid_freertos/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 FREERTOS_SRC = lib/FreeRTOS-Kernel
 FREERTOS_PORTABLE_PATH= $(FREERTOS_SRC)/portable/$(if $(USE_IAR),IAR,GCC)
@@ -31,4 +31,4 @@ SRC_C += \
 SRC_S += \
 	$(subst $(TOP)/,,$(wildcard $(TOP)/$(FREERTOS_PORTABLE_SRC)/*.s))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/host/hid_controller/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
 	src \
@@ -11,4 +11,4 @@ EXAMPLE_SOURCE += \
 
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/host/msc_file_explorer/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 FATFS_PATH = lib/fatfs/source
 
@@ -24,4 +24,4 @@ SRC_C += \
 # suppress warning caused by fatfs
 CFLAGS += -Wno-error=cast-qual
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

examples/typec/power_delivery/Makefile

@@ -1,4 +1,4 @@
-include ../../make.mk
+include ../../build_system/make/make.mk
 
 INC += \
   src \
@@ -8,4 +8,4 @@ INC += \
 EXAMPLE_SOURCE += $(wildcard src/*.c)
 SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
 
-include ../../rules.mk
+include ../../build_system/make/rules.mk

hw/bsp/board.c

@@ -44,13 +44,12 @@
 
 // If using SES IDE, use the Syscalls/SEGGER_RTT_Syscalls_SES.c instead
 #if !(defined __SES_ARM) && !(defined __SES_RISCV) && !(defined __CROSSWORKS_ARM)
-
 #include "SEGGER_RTT.h"
 
-TU_ATTR_USED int sys_write(int fhdl, const void *buf, size_t count) {
+TU_ATTR_USED int sys_write(int fhdl, const char *buf, size_t count) {
   (void) fhdl;
   SEGGER_RTT_Write(0, (const char *) buf, (int) count);
-  return count;
+  return (int) count;
 }
 
 TU_ATTR_USED int sys_read(int fhdl, char *buf, size_t count) {
@@ -63,10 +62,9 @@ TU_ATTR_USED int sys_read(int fhdl, char *buf, size_t count) {
 
 #elif defined(LOGGER_SWO)
 // Logging with SWO for ARM Cortex
-
 #include "board_mcu.h"
 
-TU_ATTR_USED int sys_write (int fhdl, const void *buf, size_t count) {
+TU_ATTR_USED int sys_write (int fhdl, const char *buf, size_t count) {
   (void) fhdl;
   uint8_t const* buf8 = (uint8_t const*) buf;
 
@@ -87,7 +85,7 @@ TU_ATTR_USED int sys_read (int fhdl, char *buf, size_t count) {
 #else
 
 // Default logging with on-board UART
-TU_ATTR_USED int sys_write (int fhdl, const void *buf, size_t count) {
+TU_ATTR_USED int sys_write (int fhdl, const char *buf, size_t count) {
   (void) fhdl;
   return board_uart_write(buf, (int) count);
 }
@@ -100,6 +98,16 @@ TU_ATTR_USED int sys_read (int fhdl, char *buf, size_t count) {
 
 #endif
 
+//TU_ATTR_USED int _close(int fhdl) {
+//  (void) fhdl;
+//  return 0;
+//}
+
+//TU_ATTR_USED int _fstat(int file, struct stat *st) {
+//  memset(st, 0, sizeof(*st));
+//  st->st_mode = S_IFCHR;
+//}
+
 int board_getchar(void) {
   char c;
   return (sys_read(0, &c, 1) > 0) ? (int) c : (-1);

hw/bsp/ch32v307/family.mk

@@ -28,6 +28,8 @@ CFLAGS += \
 	-Xlinker --gc-sections \
 	-DBOARD_TUD_MAX_SPEED=OPT_MODE_HIGH_SPEED
 
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+
 SRC_C += \
 	src/portable/wch/ch32v307/dcd_usbhs.c \
 	$(CH32V307_SDK_SRC)/Core/core_riscv.c \

hw/bsp/da14695_dk_usb/board.mk

@@ -1,3 +1,5 @@
+MCU_FAMILY_DIR = hw/mcu/dialog/da1469x
+
 CFLAGS += \
   -flto \
   -mthumb \
@@ -11,7 +13,7 @@ CFLAGS += \
   -DCFG_TUSB_MCU=OPT_MCU_DA1469X \
   -DCFG_TUD_ENDPOINT0_SIZE=8\
 
-MCU_FAMILY_DIR = hw/mcu/dialog/da1469x
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
 
 # All source paths should be relative to the top level.
 LD_FILE = hw/bsp/$(BOARD)/da1469x.ld

hw/bsp/da1469x_dk_pro/board.mk

@@ -1,3 +1,5 @@
+MCU_FAMILY_DIR = hw/mcu/dialog/da1469x
+
 CFLAGS += \
   -flto \
   -mthumb \
@@ -11,7 +13,7 @@ CFLAGS += \
   -DCFG_TUSB_MCU=OPT_MCU_DA1469X \
   -DCFG_TUD_ENDPOINT0_SIZE=8\
 
-MCU_FAMILY_DIR = hw/mcu/dialog/da1469x
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
 
 # All source paths should be relative to the top level.
 LD_FILE = hw/bsp/$(BOARD)/da1469x.ld

hw/bsp/f1c100s/board.mk

@@ -1,5 +1,5 @@
+MCU_DIR = hw/mcu/allwinner/f1c100s
 DEPS_SUBMODULES += hw/mcu/allwinner
-
 DEFINES += -D__ARM32_ARCH__=5 -D__ARM926EJS__
 
 CFLAGS += \
@@ -18,8 +18,8 @@ CFLAGS += \
   $(DEFINES)
 
 LD_FILE = hw/mcu/allwinner/f1c100s/f1c100s.ld
-LDFLAGS += -nostdlib -lgcc
+# TODO may skip nanolib
-MCU_DIR = hw/mcu/allwinner/f1c100s
+LDFLAGS += -nostdlib -lgcc -specs=nosys.specs -specs=nano.specs
 
 SRC_C += \
 	src/portable/sunxi/dcd_sunxi_musb.c \

hw/bsp/family_support.cmake

@@ -201,6 +201,9 @@ function(family_configure_common TARGET RTOS)
   # Generate linker map file
   if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
     target_link_options(${TARGET} PUBLIC "LINKER:-Map=$<TARGET_FILE:${TARGET}>.map")
+    if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 12.0)
+      target_link_options(${TARGET} PUBLIC "LINKER:--no-warn-rwx-segments")
+    endif ()
   endif()
 
   # ETM Trace option
@@ -289,13 +292,11 @@ function(family_configure_device_example TARGET RTOS)
   family_configure_example(${TARGET} ${RTOS})
 endfunction()
 
-
 # Configure host example with RTOS
 function(family_configure_host_example TARGET RTOS)
   family_configure_example(${TARGET} ${RTOS})
 endfunction()
 
-
 # Configure host + device example with RTOS
 function(family_configure_dual_usb_example TARGET RTOS)
   family_configure_example(${TARGET} ${RTOS})

hw/bsp/fomu/family.mk

@@ -1,3 +1,6 @@
+# Toolchain from https://github.com/xpack-dev-tools/riscv-none-embed-gcc-xpack
+CROSS_COMPILE = riscv-none-embed-
+
 CFLAGS += \
   -flto \
   -march=rv32i \
@@ -5,8 +8,7 @@ CFLAGS += \
   -nostdlib \
   -DCFG_TUSB_MCU=OPT_MCU_VALENTYUSB_EPTRI
 
-# Toolchain from https://github.com/xpack-dev-tools/riscv-none-embed-gcc-xpack
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
-CROSS_COMPILE = riscv-none-embed-
 
 # All source paths should be relative to the top level.
 LD_FILE = $(FAMILY_PATH)/fomu.ld

hw/bsp/imxrt/family.cmake

@@ -13,7 +13,7 @@ set(MCU_VARIANT_WITH_CORE ${MCU_VARIANT}${MCU_CORE})
 
 # toolchain set up
 set(CMAKE_SYSTEM_PROCESSOR cortex-m7 CACHE INTERNAL "System Processor")
-set(CMAKE_TOOLCHAIN_FILE ${TOP}/tools/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
 
 set(FAMILY_MCUS MIMXRT1XXX CACHE INTERNAL "")
 

hw/bsp/imxrt/family.mk

@@ -5,8 +5,8 @@ DEPS_SUBMODULES += $(SDK_DIR) lib/CMSIS_5
 include $(TOP)/$(BOARD_PATH)/board.mk
 
 CPU_CORE ?= cortex-m7
-
 MCU_VARIANT_WITH_CORE = ${MCU_VARIANT}${MCU_CORE}
+MCU_DIR = $(SDK_DIR)/devices/$(MCU_VARIANT)
 
 CFLAGS += \
   -D__ARMVFP__=0 \
@@ -26,7 +26,7 @@ endif
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=unused-parameter -Wno-error=implicit-fallthrough -Wno-error=redundant-decls
 
-MCU_DIR = $(SDK_DIR)/devices/$(MCU_VARIANT)
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
 
 # All source paths should be relative to the top level.
 LD_FILE ?= $(MCU_DIR)/gcc/$(MCU_VARIANT)xxxxx${MCU_CORE}_flexspi_nor.ld

hw/bsp/kinetis_k32l2/family.mk

@@ -9,6 +9,8 @@ CPU_CORE ?= cortex-m0plus
 CFLAGS += \
 	-DCFG_TUSB_MCU=OPT_MCU_KINETIS_K32L
 
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+
 SRC_C += \
 	src/portable/nxp/khci/dcd_khci.c \
 	src/portable/nxp/khci/hcd_khci.c \

hw/bsp/kinetis_kl/family.cmake

@@ -12,7 +12,7 @@ include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
 
 # toolchain set up
 set(CMAKE_SYSTEM_PROCESSOR cortex-m0plus CACHE INTERNAL "System Processor")
-set(CMAKE_TOOLCHAIN_FILE ${TOP}/tools/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
 
 set(FAMILY_MCUS KINETIS_KL CACHE INTERNAL "")
 

hw/bsp/kinetis_kl/family.mk

@@ -9,6 +9,7 @@ CFLAGS += \
   -DCFG_TUSB_MCU=OPT_MCU_KINETIS_KL \
 
 LDFLAGS += \
+  -specs=nosys.specs -specs=nano.specs \
   -Wl,--defsym,__stack_size__=0x400 \
   -Wl,--defsym,__heap_size__=0
 

hw/bsp/lpc11/family.mk

@@ -11,6 +11,8 @@ CFLAGS += \
   -DCFG_TUSB_MCU=OPT_MCU_LPC11UXX \
   -DCFG_TUSB_MEM_ALIGN='__attribute__((aligned(64)))'
 
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+
 SRC_C += \
 	src/portable/nxp/lpc_ip3511/dcd_lpc_ip3511.c \
 	$(MCU_DIR)/../gcc/cr_startup_lpc$(MCU_DRV).c \

hw/bsp/lpc13/family.mk

@@ -14,6 +14,8 @@ CFLAGS += \
   -DCFG_TUSB_MCU=OPT_MCU_LPC13XX \
   -DCFG_TUSB_MEM_ALIGN='__attribute__((aligned(64)))'
 
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+
 # startup.c and lpc_types.h cause following errors
 CFLAGS += -Wno-error=strict-prototypes -Wno-error=redundant-decls
 

hw/bsp/lpc15/family.mk

@@ -12,6 +12,8 @@ CFLAGS += \
   -DCFG_TUSB_MCU=OPT_MCU_LPC15XX \
   -DCFG_TUSB_MEM_ALIGN='__attribute__((aligned(64)))'
 
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=strict-prototypes -Wno-error=unused-parameter -Wno-error=unused-variable -Wno-error=cast-qual
 

hw/bsp/lpc17/family.mk

@@ -18,7 +18,7 @@ CFLAGS += -Wno-error=strict-prototypes -Wno-error=cast-qual
 # caused by freeRTOS port !!
 CFLAGS += -Wno-error=maybe-uninitialized
 
-MCU_DIR = hw/mcu/nxp/lpcopen/lpc175x_6x/lpc_chip_175x_6x
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
 
 SRC_C += \
 	src/portable/nxp/lpc17_40/dcd_lpc17_40.c \

hw/bsp/lpc18/family.cmake

@@ -11,7 +11,7 @@ include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
 
 # toolchain set up
 set(CMAKE_SYSTEM_PROCESSOR cortex-m3 CACHE INTERNAL "System Processor")
-set(CMAKE_TOOLCHAIN_FILE ${TOP}/tools/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
 
 set(FAMILY_MCUS LPC18XX CACHE INTERNAL "")
 

hw/bsp/lpc18/family.mk

@@ -1,4 +1,5 @@
 DEPS_SUBMODULES += hw/mcu/nxp/lpcopen
+MCU_DIR = hw/mcu/nxp/lpcopen/lpc18xx/lpc_chip_18xx
 
 include $(TOP)/$(BOARD_PATH)/board.mk
 CPU_CORE ?= cortex-m3
@@ -13,7 +14,7 @@ CFLAGS += \
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=unused-parameter -Wno-error=strict-prototypes -Wno-error=cast-qual
 
-MCU_DIR = hw/mcu/nxp/lpcopen/lpc18xx/lpc_chip_18xx
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
 
 SRC_C += \
 	src/portable/chipidea/ci_hs/dcd_ci_hs.c \

hw/bsp/lpc40/family.cmake

@@ -7,7 +7,7 @@ include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
 
 # toolchain set up
 set(CMAKE_SYSTEM_PROCESSOR cortex-m4 CACHE INTERNAL "System Processor")
-set(CMAKE_TOOLCHAIN_FILE ${TOP}/tools/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
 
 set(FAMILY_MCUS LPC18XX CACHE INTERNAL "")
 

hw/bsp/lpc40/family.mk

@@ -15,6 +15,8 @@ CFLAGS += \
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=strict-prototypes -Wno-error=unused-parameter -Wno-error=cast-qual
 
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+
 # All source paths should be relative to the top level.
 SRC_C += \
 	src/portable/nxp/lpc17_40/dcd_lpc17_40.c \

hw/bsp/lpc43/family.cmake

@@ -7,7 +7,7 @@ include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
 
 # toolchain set up
 set(CMAKE_SYSTEM_PROCESSOR cortex-m4 CACHE INTERNAL "System Processor")
-set(CMAKE_TOOLCHAIN_FILE ${TOP}/tools/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
 
 set(FAMILY_MCUS LPC43XX CACHE INTERNAL "")
 

hw/bsp/lpc43/family.mk

@@ -18,6 +18,8 @@ CFLAGS += \
   -Wno-error=cast-qual \
   -Wno-error=incompatible-pointer-types \
 
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+
 SRC_C += \
 	src/portable/chipidea/ci_hs/dcd_ci_hs.c \
 	src/portable/chipidea/ci_hs/hcd_ci_hs.c \

hw/bsp/lpc51/family.mk

@@ -13,6 +13,8 @@ CFLAGS += \
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=unused-parameter
 
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+
 # All source paths should be relative to the top level.
 LD_FILE = $(MCU_DIR)/gcc/$(MCU)_flash.ld
 

hw/bsp/lpc54/family.cmake

@@ -12,7 +12,7 @@ include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
 
 # toolchain set up
 set(CMAKE_SYSTEM_PROCESSOR cortex-m4 CACHE INTERNAL "System Processor")
-set(CMAKE_TOOLCHAIN_FILE ${TOP}/tools/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
 
 set(FAMILY_MCUS LPC54 CACHE INTERNAL "")
 

hw/bsp/lpc54/family.mk

@@ -3,6 +3,7 @@ DEPS_SUBMODULES += $(SDK_DIR) lib/CMSIS_5
 
 include $(TOP)/$(BOARD_PATH)/board.mk
 CPU_CORE ?= cortex-m4
+MCU_DIR = $(SDK_DIR)/devices/$(MCU_VARIANT)
 
 CFLAGS += \
   -flto \
@@ -22,7 +23,7 @@ endif
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=unused-parameter
 
-MCU_DIR = $(SDK_DIR)/devices/$(MCU_VARIANT)
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
 
 SRC_C += \
 	src/portable/nxp/lpc_ip3511/dcd_lpc_ip3511.c \

hw/bsp/lpc55/family.cmake

@@ -12,7 +12,7 @@ include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
 
 # toolchain set up
 set(CMAKE_SYSTEM_PROCESSOR cortex-m33 CACHE INTERNAL "System Processor")
-set(CMAKE_TOOLCHAIN_FILE ${TOP}/tools/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
 
 set(FAMILY_MCUS LPC55 CACHE INTERNAL "")
 

hw/bsp/lpc55/family.mk

@@ -4,6 +4,7 @@ DEPS_SUBMODULES += lib/CMSIS_5 lib/sct_neopixel $(SDK_DIR)
 
 include $(TOP)/$(BOARD_PATH)/board.mk
 CPU_CORE ?= cortex-m33
+MCU_DIR = $(SDK_DIR)/devices/$(MCU_VARIANT)
 
 # Default to Highspeed PORT1
 PORT ?= 1
@@ -27,7 +28,7 @@ endif
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=unused-parameter -Wno-error=float-equal
 
-MCU_DIR = $(SDK_DIR)/devices/$(MCU_VARIANT)
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
 
 # All source paths should be relative to the top level.
 LD_FILE ?= $(MCU_DIR)/gcc/$(MCU_CORE)_flash.ld

hw/bsp/mcx/family.cmake

@@ -12,7 +12,7 @@ include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
 
 # toolchain set up
 set(CMAKE_SYSTEM_PROCESSOR cortex-m33 CACHE INTERNAL "System Processor")
-set(CMAKE_TOOLCHAIN_FILE ${TOP}/tools/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
 
 set(FAMILY_MCUS MCXN9 CACHE INTERNAL "")
 

hw/bsp/mcx/family.mk

@@ -17,6 +17,8 @@ CFLAGS += \
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=unused-parameter -Wno-error=old-style-declaration
 
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+
 # All source paths should be relative to the top level.
 LD_FILE ?= $(SDK_DIR)/devices/$(MCU_VARIANT)/gcc/$(MCU_CORE)_flash.ld
 

hw/bsp/mm32/family.mk

@@ -13,6 +13,8 @@ CFLAGS += \
 # suppress warning caused by vendor mcu driver
 CFLAGS += -Wno-error=unused-parameter -Wno-error=maybe-uninitialized -Wno-error=cast-qual
 
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+
 SRC_C += \
 	src/portable/mindmotion/mm32/dcd_mm32f327x_otg.c \
 	$(SDK_DIR)/mm32f327x/MM32F327x/Source/system_mm32f327x.c \

hw/bsp/msp432e4/family.mk

@@ -12,6 +12,8 @@ CFLAGS += \
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=cast-qual -Wno-error=format=
 
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+
 # All source paths should be relative to the top level.
 LD_FILE = hw/mcu/ti/msp432e4/Source/msp432e401y.ld
 LDINC += $(TOP)/hw/mcu/ti/msp432e4/Include

hw/bsp/ngx4330/board.mk

@@ -1,47 +0,0 @@
-DEPS_SUBMODULES += hw/mcu/nxp/lpcopen
-
-CFLAGS += \
-  -flto \
-  -mthumb \
-  -mabi=aapcs \
-  -mcpu=cortex-m4 \
-  -mfloat-abi=hard \
-  -mfpu=fpv4-sp-d16 \
-  -nostdlib \
-  -DCORE_M4 \
-  -D__USE_LPCOPEN \
-  -DCFG_TUSB_MCU=OPT_MCU_LPC43XX
-
-# mcu driver cause following warnings
-CFLAGS += -Wno-error=strict-prototypes -Wno-error=unused-parameter -Wno-error=cast-qual
-
-MCU_DIR = hw/mcu/nxp/lpcopen/lpc43xx/lpc_chip_43xx
-
-# All source paths should be relative to the top level.
-LD_FILE = hw/bsp/$(BOARD)/ngx4330.ld
-
-SRC_C += \
-	src/portable/chipidea/ci_hs/dcd_ci_hs.c \
-	src/portable/chipidea/ci_hs/hcd_ci_hs.c \
-	src/portable/ehci/ehci.c \
-	$(MCU_DIR)/../gcc/cr_startup_lpc43xx.c \
-	$(MCU_DIR)/src/chip_18xx_43xx.c \
-	$(MCU_DIR)/src/clock_18xx_43xx.c \
-	$(MCU_DIR)/src/gpio_18xx_43xx.c \
-	$(MCU_DIR)/src/sysinit_18xx_43xx.c \
-	$(MCU_DIR)/src/uart_18xx_43xx.c \
-	$(MCU_DIR)/src/fpu_init.c
-
-INC += \
-	$(TOP)/$(MCU_DIR)/inc \
-	$(TOP)/$(MCU_DIR)/inc/config_43xx
-
-# For freeRTOS port source
-FREERTOS_PORTABLE_SRC = $(FREERTOS_PORTABLE_PATH)/ARM_CM4F
-
-# For flash-jlink target
-JLINK_DEVICE = LPC4330
-JLINK_IF = swd
-
-# flash using jlink
-flash: flash-jlink

hw/bsp/ngx4330/ngx4330.c

@@ -1,271 +0,0 @@
-/*
- * The MIT License (MIT)
- *
- * Copyright (c) 2019 Ha Thach (tinyusb.org)
- *
- * 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 is part of the TinyUSB stack.
- */
-
-#include "chip.h"
-#include "../board_api.h"
-
-#define LED_PORT              1
-#define LED_PIN               12
-#define LED_STATE_ON          0
-
-#define BUTTON_PORT           0
-#define BUTTON_PIN            7
-#define BUTTON_STATE_ACTIVE   0
-
-#define BOARD_UART_PORT           LPC_USART0
-#define BOARD_UART_PIN_PORT       0x0f
-#define BOARD_UART_PIN_TX         10 // PF.10 : UART0_TXD
-#define BOARD_UART_PIN_RX         11 // PF.11 : UART0_RXD
-
-#ifdef BOARD_TUD_RHPORT
-  #define PORT_SUPPORT_DEVICE(_n)  (BOARD_TUD_RHPORT == _n)
-#else
-  #define PORT_SUPPORT_DEVICE(_n)  0
-#endif
-
-#ifdef BOARD_TUH_RHPORT
-  #define PORT_SUPPORT_HOST(_n)    (BOARD_TUH_RHPORT == _n)
-#else
-  #define PORT_SUPPORT_HOST(_n)    0
-#endif
-
-/*------------------------------------------------------------------*/
-/* BOARD API
- *------------------------------------------------------------------*/
-
-/* System configuration variables used by chip driver */
-const uint32_t OscRateIn = 12000000;
-const uint32_t ExtRateIn = 0;
-
-static const PINMUX_GRP_T pinmuxing[] =
-{
-  // LED P2.12 as GPIO 1.12
-  {2, 11, (SCU_MODE_INBUFF_EN | SCU_MODE_PULLDOWN | SCU_MODE_FUNC0)},
-
-  // Button P2.7 as GPIO 0.7
-  {2, 7,  (SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_FUNC0)},
-
-  // USB
-  {2, 6, (SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_FUNC4)}, // USB1_PWR_EN
-  {2, 5, (SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_FUNC2)}, // USB1_VBUS
-  {1, 7, (SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_FUNC4)}, // USB0_PWRN_EN
-
-  // SPIFI
-	{3, 3,  (SCU_PINIO_FAST | SCU_MODE_FUNC3)},	/* SPIFI CLK */
-	{3, 4,  (SCU_PINIO_FAST | SCU_MODE_FUNC3)},	/* SPIFI D3 */
-	{3, 5,  (SCU_PINIO_FAST | SCU_MODE_FUNC3)},	/* SPIFI D2 */
-	{3, 6,  (SCU_PINIO_FAST | SCU_MODE_FUNC3)},	/* SPIFI D1 */
-	{3, 7,  (SCU_PINIO_FAST | SCU_MODE_FUNC3)},	/* SPIFI D0 */
-	{3, 8,  (SCU_PINIO_FAST | SCU_MODE_FUNC3)}	/* SPIFI CS/SSEL */
-};
-
-// Invoked by startup code
-void SystemInit(void)
-{
-#ifdef __USE_LPCOPEN
-	extern void (* const g_pfnVectors[])(void);
-  unsigned int *pSCB_VTOR = (unsigned int *) 0xE000ED08;
-	*pSCB_VTOR = (unsigned int) g_pfnVectors;
-
-#if __FPU_USED == 1
-	fpuInit();
-#endif
-#endif // __USE_LPCOPEN
-
-	// Set up pinmux
-	Chip_SCU_SetPinMuxing(pinmuxing, sizeof(pinmuxing) / sizeof(PINMUX_GRP_T));
-
-	//------------- Set up clock -------------//
-	Chip_Clock_SetBaseClock(CLK_BASE_SPIFI, CLKIN_IRC, true, false);	// change SPIFI to IRC during clock programming
-	LPC_SPIFI->CTRL |= SPIFI_CTRL_FBCLK(1);								            // and set FBCLK in SPIFI controller
-
-	Chip_SetupCoreClock(CLKIN_CRYSTAL, MAX_CLOCK_FREQ, true);
-
-	/* Reset and enable 32Khz oscillator */
-	LPC_CREG->CREG0 &= ~((1 << 3) | (1 << 2));
-	LPC_CREG->CREG0 |= (1 << 1) | (1 << 0);
-
-	/* Setup a divider E for main PLL clock switch SPIFI clock to that divider.
-	   Divide rate is based on CPU speed and speed of SPI FLASH part. */
-#if (MAX_CLOCK_FREQ > 180000000)
-	Chip_Clock_SetDivider(CLK_IDIV_E, CLKIN_MAINPLL, 5);
-#else
-	Chip_Clock_SetDivider(CLK_IDIV_E, CLKIN_MAINPLL, 4);
-#endif
-	Chip_Clock_SetBaseClock(CLK_BASE_SPIFI, CLKIN_IDIVE, true, false);
-
-	/* Setup system base clocks and initial states. This won't enable and
-	   disable individual clocks, but sets up the base clock sources for
-	   each individual peripheral clock. */
-	Chip_Clock_SetBaseClock(CLK_BASE_USB1, CLKIN_IDIVD, true, true);
-}
-
-void board_init(void)
-{
-  SystemCoreClockUpdate();
-
-#if CFG_TUSB_OS == OPT_OS_NONE
-  // 1ms tick timer
-  SysTick_Config(SystemCoreClock / 1000);
-#elif CFG_TUSB_OS == OPT_OS_FREERTOS
-  // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
-  NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
-#endif
-
-  Chip_GPIO_Init(LPC_GPIO_PORT);
-
-  // LED
-  Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, LED_PORT, LED_PIN);
-
-  // Button
-  Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, BUTTON_PORT, BUTTON_PIN);
-
-#if 0
-  //------------- UART -------------//
-  scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_TX, MD_PDN, FUNC1);
-  scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_RX, MD_PLN | MD_EZI | MD_ZI, FUNC1);
-
-  UART_CFG_Type UARTConfigStruct;
-  UART_ConfigStructInit(&UARTConfigStruct);
-  UARTConfigStruct.Baud_rate   = CFG_BOARD_UART_BAUDRATE;
-  UARTConfigStruct.Clock_Speed = 0;
-
-  UART_Init(BOARD_UART_PORT, &UARTConfigStruct);
-  UART_TxCmd(BOARD_UART_PORT, ENABLE); // Enable UART Transmit
-#endif
-
-  //------------- USB -------------//
-  enum {
-    USBMODE_DEVICE = 2,
-    USBMODE_HOST   = 3
-  };
-
-  enum {
-    USBMODE_VBUS_LOW  = 0,
-    USBMODE_VBUS_HIGH = 1
-  };
-
-  /* USB0
-   * For USB Device operation; insert jumpers in position 1-2 in JP17/JP18/JP19. GPIO28 controls USB
-   * connect functionality and LED32 lights when the USB Device is connected. SJ4 has pads 1-2 shorted
-   * by default. LED33 is controlled by GPIO27 and signals USB-up state. GPIO54 is used for VBUS
-   * sensing.
-   * For USB Host operation; insert jumpers in position 2-3 in JP17/JP18/JP19. USB Host power is
-   * controlled via distribution switch U20 (found in schematic page 11). Signal GPIO26 is active low and
-   * enables +5V on VBUS2. LED35 light whenever +5V is present on VBUS2. GPIO55 is connected to
-   * status feedback from the distribution switch. GPIO54 is used for VBUS sensing. 15Kohm pull-down
-   * resistors are always active
-   */
-  Chip_USB0_Init();
-
-  /* USB1
-   * When USB channel #1 is used as USB Host, 15Kohm pull-down resistors are needed on the USB data
-   * signals. These are activated inside the USB OTG chip (U31), and this has to be done via the I2C
-   * interface of GPIO52/GPIO53.
-   * J20 is the connector to use when USB Host is used. In order to provide +5V to the external USB
-   * device connected to this connector (J20), channel A of U20 must be enabled. It is enabled by default
-   * since SJ5 is normally connected between pin 1-2. LED34 lights green when +5V is available on J20.
-   * JP15 shall not be inserted. JP16 has no effect
-   *
-   * When USB channel #1 is used as USB Device, a 1.5Kohm pull-up resistor is needed on the USB DP
-   * data signal. There are two methods to create this. JP15 is inserted and the pull-up resistor is always
-   * enabled. Alternatively, the pull-up resistor is activated inside the USB OTG chip (U31), and this has to
-   * be done via the I2C interface of GPIO52/GPIO53. In the latter case, JP15 shall not be inserted.
-   * J19 is the connector to use when USB Device is used. Normally it should be a USB-B connector for
-   * creating a USB Device interface, but the mini-AB connector can also be used in this case. The status
-   * of VBUS can be read via U31.
-   * JP16 shall not be inserted.
-   */
-  Chip_USB1_Init();
-//	Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, 5, 6);							/* GPIO5[6] = USB1_PWR_EN */
-//	Chip_GPIO_SetPinState(LPC_GPIO_PORT, 5, 6, true);							/* GPIO5[6] output high */
-}
-
-//--------------------------------------------------------------------+
-// USB Interrupt Handler
-//--------------------------------------------------------------------+
-void USB0_IRQHandler(void)
-{
-  #if PORT_SUPPORT_DEVICE(0)
-    tud_int_handler(0);
-  #endif
-
-  #if PORT_SUPPORT_HOST(0)
-    tuh_int_handler(0, true);
-  #endif
-}
-
-void USB1_IRQHandler(void)
-{
-  #if PORT_SUPPORT_DEVICE(1)
-    tud_int_handler(1);
-  #endif
-
-  #if PORT_SUPPORT_HOST(1)
-    tuh_int_handler(1, true);
-  #endif
-}
-
-//--------------------------------------------------------------------+
-// Board porting API
-//--------------------------------------------------------------------+
-
-void board_led_write(bool state)
-{
-  Chip_GPIO_SetPinState(LPC_GPIO_PORT, LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
-}
-
-uint32_t board_button_read(void)
-{
-  return BUTTON_STATE_ACTIVE == Chip_GPIO_GetPinState(LPC_GPIO_PORT, BUTTON_PORT, BUTTON_PIN);
-}
-
-int board_uart_read(uint8_t* buf, int len)
-{
-  //return UART_ReceiveByte(BOARD_UART_PORT);
-  (void) buf; (void) len;
-  return 0;
-}
-
-int board_uart_write(void const * buf, int len)
-{
-  //UART_Send(BOARD_UART_PORT, &c, 1, BLOCKING);
-  (void) buf; (void) len;
-  return 0;
-}
-
-#if CFG_TUSB_OS == OPT_OS_NONE
-volatile uint32_t system_ticks = 0;
-void SysTick_Handler (void)
-{
-  system_ticks++;
-}
-
-uint32_t board_millis(void)
-{
-  return system_ticks;
-}
-#endif

hw/bsp/ngx4330/ngx4330.ld

@@ -1,343 +0,0 @@
-/*
- * GENERATED FILE - DO NOT EDIT
- * Copyright (c) 2008-2013 Code Red Technologies Ltd,
- * Copyright 2015, 2018-2019 NXP
- * (c) NXP Semiconductors 2013-2019
- * Generated linker script file for LPC4330
- * Created from linkscript.ldt by FMCreateLinkLibraries
- * Using Freemarker v2.3.23
- * MCUXpresso IDE v11.0.0 [Build 2516] [2019-06-05] on Sep 9, 2019 12:09:49 PM
- */
-
-MEMORY
-{
-  /* Define each memory region */
-  RamLoc128 (rwx) : ORIGIN = 0x10000000, LENGTH = 0x20000 /* 128K bytes (alias RAM) */
-  RamLoc72 (rwx) : ORIGIN = 0x10080000, LENGTH = 0x12000 /* 72K bytes (alias RAM2) */
-  RamAHB32 (rwx) : ORIGIN = 0x20000000, LENGTH = 0x8000 /* 32K bytes (alias RAM3) */
-  RamAHB16 (rwx) : ORIGIN = 0x20008000, LENGTH = 0x4000 /* 16K bytes (alias RAM4) */
-  RamAHB_ETB16 (rwx) : ORIGIN = 0x2000c000, LENGTH = 0x4000 /* 16K bytes (alias RAM5) */
-  SPIFI (rx) : ORIGIN = 0x14000000, LENGTH = 0x400000 /* 4M bytes (alias Flash) */
-}
-
-  /* Define a symbol for the top of each memory region */
-  __base_RamLoc128 = 0x10000000  ; /* RamLoc128 */
-  __base_RAM = 0x10000000 ; /* RAM */
-  __top_RamLoc128 = 0x10000000 + 0x20000 ; /* 128K bytes */
-  __top_RAM = 0x10000000 + 0x20000 ; /* 128K bytes */
-  __base_RamLoc72 = 0x10080000  ; /* RamLoc72 */
-  __base_RAM2 = 0x10080000 ; /* RAM2 */
-  __top_RamLoc72 = 0x10080000 + 0x12000 ; /* 72K bytes */
-  __top_RAM2 = 0x10080000 + 0x12000 ; /* 72K bytes */
-  __base_RamAHB32 = 0x20000000  ; /* RamAHB32 */
-  __base_RAM3 = 0x20000000 ; /* RAM3 */
-  __top_RamAHB32 = 0x20000000 + 0x8000 ; /* 32K bytes */
-  __top_RAM3 = 0x20000000 + 0x8000 ; /* 32K bytes */
-  __base_RamAHB16 = 0x20008000  ; /* RamAHB16 */
-  __base_RAM4 = 0x20008000 ; /* RAM4 */
-  __top_RamAHB16 = 0x20008000 + 0x4000 ; /* 16K bytes */
-  __top_RAM4 = 0x20008000 + 0x4000 ; /* 16K bytes */
-  __base_RamAHB_ETB16 = 0x2000c000  ; /* RamAHB_ETB16 */
-  __base_RAM5 = 0x2000c000 ; /* RAM5 */
-  __top_RamAHB_ETB16 = 0x2000c000 + 0x4000 ; /* 16K bytes */
-  __top_RAM5 = 0x2000c000 + 0x4000 ; /* 16K bytes */
-  __base_SPIFI = 0x14000000  ; /* SPIFI */
-  __base_Flash = 0x14000000 ; /* Flash */
-  __top_SPIFI = 0x14000000 + 0x400000 ; /* 4M bytes */
-  __top_Flash = 0x14000000 + 0x400000 ; /* 4M bytes */
-
-ENTRY(ResetISR)
-
-SECTIONS
-{
-     /* MAIN TEXT SECTION */
-    .text : ALIGN(4)
-    {
-        FILL(0xff)
-        __vectors_start__ = ABSOLUTE(.) ;
-        KEEP(*(.isr_vector))
-        /* Global Section Table */
-        . = ALIGN(4) ;
-        __section_table_start = .;
-        __data_section_table = .;
-        LONG(LOADADDR(.data));
-        LONG(    ADDR(.data));
-        LONG(  SIZEOF(.data));
-        LONG(LOADADDR(.data_RAM2));
-        LONG(    ADDR(.data_RAM2));
-        LONG(  SIZEOF(.data_RAM2));
-        LONG(LOADADDR(.data_RAM3));
-        LONG(    ADDR(.data_RAM3));
-        LONG(  SIZEOF(.data_RAM3));
-        LONG(LOADADDR(.data_RAM4));
-        LONG(    ADDR(.data_RAM4));
-        LONG(  SIZEOF(.data_RAM4));
-        LONG(LOADADDR(.data_RAM5));
-        LONG(    ADDR(.data_RAM5));
-        LONG(  SIZEOF(.data_RAM5));
-        __data_section_table_end = .;
-        __bss_section_table = .;
-        LONG(    ADDR(.bss));
-        LONG(  SIZEOF(.bss));
-        LONG(    ADDR(.bss_RAM2));
-        LONG(  SIZEOF(.bss_RAM2));
-        LONG(    ADDR(.bss_RAM3));
-        LONG(  SIZEOF(.bss_RAM3));
-        LONG(    ADDR(.bss_RAM4));
-        LONG(  SIZEOF(.bss_RAM4));
-        LONG(    ADDR(.bss_RAM5));
-        LONG(  SIZEOF(.bss_RAM5));
-        __bss_section_table_end = .;
-        __section_table_end = . ;
-        /* End of Global Section Table */
-
-        *(.after_vectors*)
-
-    } > SPIFI
-
-    .text : ALIGN(4)
-    {
-       *(.text*)
-       *(.rodata .rodata.* .constdata .constdata.*)
-       . = ALIGN(4);
-    } > SPIFI
-    /*
-     * for exception handling/unwind - some Newlib functions (in common
-     * with C++ and STDC++) use this.
-     */
-    .ARM.extab : ALIGN(4)
-    {
-        *(.ARM.extab* .gnu.linkonce.armextab.*)
-    } > SPIFI
-
-    __exidx_start = .;
-
-    .ARM.exidx : ALIGN(4)
-    {
-        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
-    } > SPIFI
-    __exidx_end = .;
-
-    _etext = .;
-
-    /* DATA section for RamLoc72 */
-
-    .data_RAM2 : ALIGN(4)
-    {
-        FILL(0xff)
-        PROVIDE(__start_data_RAM2 = .) ;
-        *(.ramfunc.$RAM2)
-        *(.ramfunc.$RamLoc72)
-        *(.data.$RAM2)
-        *(.data.$RamLoc72)
-        *(.data.$RAM2.*)
-        *(.data.$RamLoc72.*)
-        . = ALIGN(4) ;
-        PROVIDE(__end_data_RAM2 = .) ;
-     } > RamLoc72 AT>SPIFI
-    /* DATA section for RamAHB32 */
-
-    .data_RAM3 : ALIGN(4)
-    {
-        FILL(0xff)
-        PROVIDE(__start_data_RAM3 = .) ;
-        *(.ramfunc.$RAM3)
-        *(.ramfunc.$RamAHB32)
-        *(.data.$RAM3)
-        *(.data.$RamAHB32)
-        *(.data.$RAM3.*)
-        *(.data.$RamAHB32.*)
-        . = ALIGN(4) ;
-        PROVIDE(__end_data_RAM3 = .) ;
-     } > RamAHB32 AT>SPIFI
-    /* DATA section for RamAHB16 */
-
-    .data_RAM4 : ALIGN(4)
-    {
-        FILL(0xff)
-        PROVIDE(__start_data_RAM4 = .) ;
-        *(.ramfunc.$RAM4)
-        *(.ramfunc.$RamAHB16)
-        *(.data.$RAM4)
-        *(.data.$RamAHB16)
-        *(.data.$RAM4.*)
-        *(.data.$RamAHB16.*)
-        . = ALIGN(4) ;
-        PROVIDE(__end_data_RAM4 = .) ;
-     } > RamAHB16 AT>SPIFI
-    /* DATA section for RamAHB_ETB16 */
-
-    .data_RAM5 : ALIGN(4)
-    {
-        FILL(0xff)
-        PROVIDE(__start_data_RAM5 = .) ;
-        *(.ramfunc.$RAM5)
-        *(.ramfunc.$RamAHB_ETB16)
-        *(.data.$RAM5)
-        *(.data.$RamAHB_ETB16)
-        *(.data.$RAM5.*)
-        *(.data.$RamAHB_ETB16.*)
-        . = ALIGN(4) ;
-        PROVIDE(__end_data_RAM5 = .) ;
-     } > RamAHB_ETB16 AT>SPIFI
-    /* MAIN DATA SECTION */
-    .uninit_RESERVED (NOLOAD) :
-    {
-        . = ALIGN(4) ;
-        KEEP(*(.bss.$RESERVED*))
-       . = ALIGN(4) ;
-        _end_uninit_RESERVED = .;
-    } > RamLoc128
-
-    /* Main DATA section (RamLoc128) */
-    .data : ALIGN(4)
-    {
-       FILL(0xff)
-       _data = . ;
-       *(vtable)
-       *(.ramfunc*)
-       *(.data*)
-       . = ALIGN(4) ;
-       _edata = . ;
-    } > RamLoc128 AT>SPIFI
-
-    /* BSS section for RamLoc72 */
-    .bss_RAM2 :
-    {
-       . = ALIGN(4) ;
-       PROVIDE(__start_bss_RAM2 = .) ;
-       *(.bss.$RAM2)
-       *(.bss.$RamLoc72)
-       *(.bss.$RAM2.*)
-       *(.bss.$RamLoc72.*)
-       . = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
-       PROVIDE(__end_bss_RAM2 = .) ;
-    } > RamLoc72
-
-    /* BSS section for RamAHB32 */
-    .bss_RAM3 :
-    {
-       . = ALIGN(4) ;
-       PROVIDE(__start_bss_RAM3 = .) ;
-       *(.bss.$RAM3)
-       *(.bss.$RamAHB32)
-       *(.bss.$RAM3.*)
-       *(.bss.$RamAHB32.*)
-       . = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
-       PROVIDE(__end_bss_RAM3 = .) ;
-    } > RamAHB32
-
-    /* BSS section for RamAHB16 */
-    .bss_RAM4 :
-    {
-       . = ALIGN(4) ;
-       PROVIDE(__start_bss_RAM4 = .) ;
-       *(.bss.$RAM4)
-       *(.bss.$RamAHB16)
-       *(.bss.$RAM4.*)
-       *(.bss.$RamAHB16.*)
-       . = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
-       PROVIDE(__end_bss_RAM4 = .) ;
-    } > RamAHB16
-
-    /* BSS section for RamAHB_ETB16 */
-    .bss_RAM5 :
-    {
-       . = ALIGN(4) ;
-       PROVIDE(__start_bss_RAM5 = .) ;
-       *(.bss.$RAM5)
-       *(.bss.$RamAHB_ETB16)
-       *(.bss.$RAM5.*)
-       *(.bss.$RamAHB_ETB16.*)
-       . = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
-       PROVIDE(__end_bss_RAM5 = .) ;
-    } > RamAHB_ETB16
-
-    /* MAIN BSS SECTION */
-    .bss :
-    {
-        . = ALIGN(4) ;
-        _bss = .;
-        *(.bss*)
-        *(COMMON)
-        . = ALIGN(4) ;
-        _ebss = .;
-        PROVIDE(end = .);
-    } > RamLoc128
-
-    /* NOINIT section for RamLoc72 */
-    .noinit_RAM2 (NOLOAD) :
-    {
-       . = ALIGN(4) ;
-       *(.noinit.$RAM2)
-       *(.noinit.$RamLoc72)
-       *(.noinit.$RAM2.*)
-       *(.noinit.$RamLoc72.*)
-       . = ALIGN(4) ;
-    } > RamLoc72
-
-    /* NOINIT section for RamAHB32 */
-    .noinit_RAM3 (NOLOAD) :
-    {
-       . = ALIGN(4) ;
-       *(.noinit.$RAM3)
-       *(.noinit.$RamAHB32)
-       *(.noinit.$RAM3.*)
-       *(.noinit.$RamAHB32.*)
-       . = ALIGN(4) ;
-    } > RamAHB32
-
-    /* NOINIT section for RamAHB16 */
-    .noinit_RAM4 (NOLOAD) :
-    {
-       . = ALIGN(4) ;
-       *(.noinit.$RAM4)
-       *(.noinit.$RamAHB16)
-       *(.noinit.$RAM4.*)
-       *(.noinit.$RamAHB16.*)
-       . = ALIGN(4) ;
-    } > RamAHB16
-
-    /* NOINIT section for RamAHB_ETB16 */
-    .noinit_RAM5 (NOLOAD) :
-    {
-       . = ALIGN(4) ;
-       *(.noinit.$RAM5)
-       *(.noinit.$RamAHB_ETB16)
-       *(.noinit.$RAM5.*)
-       *(.noinit.$RamAHB_ETB16.*)
-       . = ALIGN(4) ;
-    } > RamAHB_ETB16
-
-    /* DEFAULT NOINIT SECTION */
-    .noinit (NOLOAD):
-    {
-         . = ALIGN(4) ;
-        _noinit = .;
-        *(.noinit*)
-         . = ALIGN(4) ;
-        _end_noinit = .;
-    } > RamLoc128
-    PROVIDE(_pvHeapStart = DEFINED(__user_heap_base) ? __user_heap_base : .);
-    PROVIDE(_vStackTop = DEFINED(__user_stack_top) ? __user_stack_top : __top_RamLoc128 - 0);
-
-    /* ## Create checksum value (used in startup) ## */
-    PROVIDE(__valid_user_code_checksum = 0 -
-                                         (_vStackTop
-                                         + (ResetISR + 1)
-                                         + (NMI_Handler + 1)
-                                         + (HardFault_Handler + 1)
-                                         + (( DEFINED(MemManage_Handler) ? MemManage_Handler : 0 ) + 1)   /* MemManage_Handler may not be defined */
-                                         + (( DEFINED(BusFault_Handler) ? BusFault_Handler : 0 ) + 1)     /* BusFault_Handler may not be defined */
-                                         + (( DEFINED(UsageFault_Handler) ? UsageFault_Handler : 0 ) + 1) /* UsageFault_Handler may not be defined */
-                                         ) );
-
-    /* Provide basic symbols giving location and size of main text
-     * block, including initial values of RW data sections. Note that
-     * these will need extending to give a complete picture with
-     * complex images (e.g multiple Flash banks).
-     */
-    _image_start = LOADADDR(.text);
-    _image_end = LOADADDR(.data) + SIZEOF(.data);
-    _image_size = _image_end - _image_start;
-}

hw/bsp/nrf/family.cmake

@@ -19,7 +19,7 @@ else ()
   set(JLINK_DEVICE ${MCU_VARIANT}_xxaa)
 endif ()
 
-set(CMAKE_TOOLCHAIN_FILE ${TOP}/tools/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
 
 set(FAMILY_MCUS NRF5X CACHE INTERNAL "")
 
@@ -84,9 +84,7 @@ function(add_board_target BOARD_TARGET)
         # linker file
         "LINKER:--script=${LD_FILE_GNU}"
         -L${NRFX_DIR}/mdk
-        # nanolib
+        --specs=nosys.specs --specs=nano.specs
-        --specs=nosys.specs
-        --specs=nano.specs
         )
     elseif (CMAKE_C_COMPILER_ID STREQUAL "IAR")
       target_link_options(${BOARD_TARGET} PUBLIC

hw/bsp/nrf/family.mk

@@ -12,10 +12,20 @@ CFLAGS += \
   -DCFG_TUSB_MCU=OPT_MCU_NRF5X \
   -DCONFIG_GPIO_AS_PINRESET
 
-# suppress warning caused by vendor mcu driver
+#CFLAGS += -nostdlib
-CFLAGS += -Wno-error=undef -Wno-error=unused-parameter -Wno-error=cast-align -Wno-error=cast-qual -Wno-error=redundant-decls
+#CFLAGS += -D__START=main
 
-LDFLAGS += -L$(TOP)/${NRFX_DIR}/mdk
+# suppress warning caused by vendor mcu driver
+CFLAGS += \
+  -Wno-error=undef \
+  -Wno-error=unused-parameter \
+  -Wno-error=cast-align \
+  -Wno-error=cast-qual \
+  -Wno-error=redundant-decls
+
+LDFLAGS += \
+  -specs=nosys.specs -specs=nano.specs \
+  -L$(TOP)/${NRFX_DIR}/mdk
 
 SRC_C += \
   src/portable/nordic/nrf5x/dcd_nrf5x.c \

hw/bsp/nutiny_nuc121s/board.mk

@@ -13,6 +13,8 @@ CFLAGS += \
 # mcu driver cause following warnings
 CFLAGS += -Wno-error=redundant-decls
 
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+
 # All source paths should be relative to the top level.
 LD_FILE = hw/bsp/$(BOARD)/nuc121_flash.ld