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#217053
To whom it may concern,

I tried to modify the adc_lpmode0_dma example Makefile to upload this example from C code to the red board Artemis ATP. I added the board_sfe, with the SparkFun board definitions, directory to the SDK following a Sparkfun tutorial. I put the modified Makefile in the original directory of the adc_lpmode0_dma example provided by the Ambiq SDK in the Apollo3_evb directory.

I attached a copy of my make file to this post. When I try to load this example to the board I get the following output from the make:

"Compiling gcc ../src/adc_lpmode0_dma.c
Compiling gcc ../../../../../utils/am_util_delay.c
Compiling gcc ../../../../../utils/am_util_faultisr.c
Compiling gcc ../../../../../utils/am_util_stdio.c
Compiling gcc ../../../../../devices/am_devices_led.c
Compiling gcc startup_gcc.c
Linking gcc bin/adc_lpmode0_dma_svl.axf with script /Users/miayanyeremi/Downloads/AmbiqSuite-R2.4.2/boards_sfe/common/tools_sfe/templates/asb_svl_linker.ld
/usr/local/gcc_arm/gcc-arm-none-eabi-9-2020-q2-update/bin/../lib/gcc/arm-none-eabi/9.3.1/../../../../arm-none-eabi/bin/ld: bin/adc_lpmode0_dma_svl.axf section `.stack' will not fit in region `sram'
/usr/local/gcc_arm/gcc-arm-none-eabi-9-2020-q2-update/bin/../lib/gcc/arm-none-eabi/9.3.1/../../../../arm-none-eabi/bin/ld: region `sram' overflowed by 4088 bytes"

I don't know what to do to try and fix this error I didn't modify the original c code. Any help or suggestions would be appreciated.

Cheers,

Miayan


I could not get my make file to attach to this post so here it is copy and pasted:

TARGET := adc_lpmode0_dma
COMPILERNAME := gcc
PROJECT := adc_lpmode0_dma_gcc
CONFIG := bin

SHELL:=/bin/bash
#### Setup ####

TOOLCHAIN ?= arm-none-eabi
PART = apollo3
CPU = cortex-m4
FPU = fpv4-sp-d16
# Default to FPU hardware calling convention. However, some customers and/or
# applications may need the software calling convention.
#FABI = softfp
FABI = hard

LINKER_FILE := ./adc_lpmode0_dma.ld
STARTUP_FILE := ./startup_$(COMPILERNAME).c

#### Required Executables ####
CC = $(TOOLCHAIN)-gcc
GCC = $(TOOLCHAIN)-gcc
CPP = $(TOOLCHAIN)-cpp
LD = $(TOOLCHAIN)-ld
CP = $(TOOLCHAIN)-objcopy
OD = $(TOOLCHAIN)-objdump
RD = $(TOOLCHAIN)-readelf
AR = $(TOOLCHAIN)-ar
SIZE = $(TOOLCHAIN)-size
RM = $(shell which rm 2>/dev/null)

EXECUTABLES = CC LD CP OD AR RD SIZE GCC
K := $(foreach exec,$(EXECUTABLES),\
$(if $(shell which $($(exec)) 2>/dev/null),,\
$(info $(exec) not found on PATH ($($(exec))).)$(exec)))
$(if $(strip $(value K)),$(info Required Program(s) $(strip $(value K)) not found))

ifneq ($(strip $(value K)),)
all clean:
$(info Tools $(TOOLCHAIN)-$(COMPILERNAME) not installed.)
$(RM) -rf bin
else

DEFINES = -DPART_$(PART)
DEFINES+= -DAM_PACKAGE_BGA
DEFINES+= -DAM_PART_APOLLO3
DEFINES+= -Dgcc

SDKPATH = /Users/miayanyeremi/Downloads
BOARDPATH = $(SDKPATH)/AmbiqSuite-R2.4.2/boards_sfe/redboard_artemis_atp

#INCLUDES = -I../../../bsp #CHANGED
INCLUDES+= -I$(BOARDPATH)/bsp
INCLUDES+= -I../src
INCLUDES+= -I../../../../../mcu/apollo3
INCLUDES+= -I../../../../../CMSIS/AmbiqMicro/Include
INCLUDES+= -I../../../../../devices
INCLUDES+= -I../../../../..
INCLUDES+= -I../../../../../utils
INCLUDES+= -I../../../../../CMSIS/ARM/Include

VPATH = ../src
VPATH+=:../../../../../utils
VPATH+=:../../../../../devices

SRC = adc_lpmode0_dma.c
SRC += am_util_delay.c
SRC += am_util_faultisr.c
SRC += am_util_stdio.c
SRC += am_devices_led.c
SRC += startup_gcc.c

CSRC = $(filter %.c,$(SRC))
ASRC = $(filter %.s,$(SRC))

OBJS = $(CSRC:%.c=$(CONFIG)/%.o)
OBJS+= $(ASRC:%.s=$(CONFIG)/%.o)

DEPS = $(CSRC:%.c=$(CONFIG)/%.d)
DEPS+= $(ASRC:%.s=$(CONFIG)/%.d)

#LIBS = ../../../bsp/gcc/bin/libam_bsp.a #CHANGED
LIBS = $(BOARDPATH)/bsp/gcc/bin/libam_bsp.a
LIBS += ../../../../../mcu/apollo3/hal/gcc/bin/libam_hal.a

CFLAGS = -mthumb -mcpu=$(CPU) -mfpu=$(FPU) -mfloat-abi=$(FABI)
CFLAGS+= -ffunction-sections -fdata-sections -fomit-frame-pointer
CFLAGS+= -MMD -MP -std=c99 -Wall -g
CFLAGS+= -O0
CFLAGS+= $(DEFINES)
CFLAGS+= $(INCLUDES)
CFLAGS+=

LFLAGS = -mthumb -mcpu=$(CPU) -mfpu=$(FPU) -mfloat-abi=$(FABI)
LFLAGS+= -nostartfiles -static
LFLAGS+= -Wl,--gc-sections,--entry,Reset_Handler,-Map,$(CONFIG)/$(TARGET).map
LFLAGS+= -Wl,--start-group -lm -lc -lgcc $(LIBS) -Wl,--end-group
LFLAGS+=

# Additional user specified CFLAGS
CFLAGS+=$(EXTRA_CFLAGS)

CPFLAGS = -Obinary

ODFLAGS = -S


COMMONPATH = $(SDKPATH)/AmbiqSuite-R2.4.2/boards_sfe/common

### Bootloader Tools
AMBIQ_BIN2BOARD=$(PYTHON3) $(COMMONPATH)/tools_sfe/ambiq/ambiq_bin2board.py
ARTEMIS_SVL=$(PYTHON3) $(COMMONPATH)/tools_sfe/artemis/artemis_svl.py


#### Rules ####
#all: directories $(CONFIG)/$(TARGET).bin
all: asb
asb: directories $(CONFIG)/$(TARGET)_asb.bin
svl: directories $(CONFIG)/$(TARGET)_svl.bin

directories: $(CONFIG)

$(CONFIG):
@mkdir -p $@

$(CONFIG)/%.o: %.c $(CONFIG)/%.d
@echo " Compiling $(COMPILERNAME) $<" ;\
$(CC) -c $(CFLAGS) $< -o $@

$(CONFIG)/%.o: %.s $(CONFIG)/%.d
@echo " Assembling $(COMPILERNAME) $<" ;\
$(CC) -c $(CFLAGS) $< -o $@


$(CONFIG)/$(TARGET)_asb.axf: LINKER_FILE = $(COMMONPATH)/tools_sfe/templates/asb_linker.ld
$(CONFIG)/$(TARGET)_asb.axf: $(OBJS) $(LIBS)
@echo " Linking $(COMPILERNAME) $@ with script $(LINKER_FILE)";\
$(CC) -Wl,-T,$(LINKER_FILE) -o $@ $(OBJS) $(LFLAGS)

$(CONFIG)/$(TARGET)_svl.axf: LINKER_FILE = $(COMMONPATH)/tools_sfe/templates/asb_svl_linker.ld
$(CONFIG)/$(TARGET)_svl.axf: $(OBJS) $(LIBS)
@echo " Linking $(COMPILERNAME) $@ with script $(LINKER_FILE)";\
$(CC) -Wl,-T,$(LINKER_FILE) -o $@ $(OBJS) $(LFLAGS)

$(CONFIG)/$(TARGET)_%.bin: $(CONFIG)/$(TARGET)_%.axf
@echo " Copying $(COMPILERNAME) $@..." ;\
$(CP) $(CPFLAGS) $< $@ ;\
$(OD) $(ODFLAGS) $< > $(CONFIG)/$(TARGET).lst


#$(CONFIG)/$(TARGET).axf: $(OBJS) $(LIBS)
# @echo " Linking $(COMPILERNAME) $@" ;\
# $(CC) -Wl,-T,$(LINKER_FILE) -o $@ $(OBJS) $(LFLAGS)

#$(CONFIG)/$(TARGET).bin: $(CONFIG)/$(TARGET).axf
# @echo " Copying $(COMPILERNAME) $@..." ;\
# $(CP) $(CPFLAGS) $< $@ ;\
# $(OD) $(ODFLAGS) $< > $(CONFIG)/$(TARGET).lst

ASB_UPLOAD_BAUD = 115200
SVL_UPLOAD_BAUD = 921600
COM_PORT = /dev/cu.wchusbserial1410

bootload_asb: directories $(CONFIG)/$(TARGET)_asb.bin
$(AMBIQ_BIN2BOARD) --bin $(CONFIG)/$(TARGET)_asb.bin --load-address-blob 0x20000 --magic-num 0xCB -o $(CONFIG)/$(TARGET) --version 0x0 --load-address-wired 0xC000 -i 6 --options 0x1 -b $(ASB_UPLOAD_BAUD) -port $(COM_PORT) -r 2 -v

bootload_svl: directories $(CONFIG)/$(TARGET)_svl.bin
$(ARTEMIS_SVL) $(COM_PORT) -f $(CONFIG)/$(TARGET)_svl.bin -b $(SVL_UPLOAD_BAUD) -v

bootload: bootload_svl



clean:
@echo "Cleaning..." ;\
$(RM) -f $(OBJS) $(DEPS) \
$(CONFIG)/$(TARGET)_%.bin $(CONFIG)/$(TARGET)_%.axf \
$(CONFIG)/$(TARGET).lst $(CONFIG)/$(TARGET).map
$(RM) -r bin
-$(RM) $(TARGET).ld

$(CONFIG)/%.d: ;

#../../../bsp/gcc/bin/libam_bsp.a:
# $(MAKE) -C ../../../bsp

#../../../../../mcu/apollo3/hal/gcc/bin/libam_hal.a:
# $(MAKE) -C ../../../../../mcu/apollo3/hal

# Automatically include any generated dependencies
#-include $(DEPS)
#endif
#.PHONY: all clean directories


$(SDKPATH)/mcu/apollo3/hal/gcc/bin/libam_hal.a:
$(MAKE) -C $(SDKPATH)/mcu/apollo3/hal/gcc

$(SDKPATH)/third_party/uecc/gcc/bin/lib_uecc.a:
$(MAKE) -C $(SDKPATH)/third_party/uecc

$(BOARDPATH)/bsp/gcc/bin/libam_bsp.a:
$(MAKE) -C $(BOARDPATH)/bsp/gcc

# Automatically include any generated dependencies
-include $(DEPS)
endif
.PHONY: all clean directories bootload bootload_asb bootload_svl
#217080
That appears to be a linker error. The SVL linker takes an additional amount of space (reserved for the SVL bootloader application). I would recommend using the original linker script from the example instead of the modified version. In the SparkFun examples this can be done by specifying the 'asb' target. Aka 'make BOARD=redboard_artemis_atp asb'

When you use the asb linker script you will need to upload using the Ambiq Secure Bootloader (ASB) rather than the SparkFun Variable Loader (SVL)
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