ESP8266 Community Forum

Posted: **Fri Feb 17, 2017 9:43 am**

Hey Everybody,

few days ago, i started with the ESP8266. I followed this Tutorial to set up the SDK ( https://github.com/esp8266/esp8266-wiki/wiki/Toolchain )and it turnes out to work pretty good on my System (Ubuntu 16.04.1 LTS with Gnome).

Now i've got a little Problem with the correct setup of the Makefile..

I've used the "basic_example" from the '/opt/Espressif/source-code-examples' and modified the user_main.c so that my ESP connects to a PORT on a little TCP-Server on my Laptop. By sending to HEX-Values to the ESP, i can turn On/Off a smal LED.
As a next step, i'll use a PWM at GPIO12 (PIN10; PWM_CH0) to Dim this LED.

So my Problem:
When i try to Compile the code using the "make" command, i'll get an Error, that there is a undefined REF.. The weird thing: the directory this error belongs to (D:\VM\Share\v.1.1.0 . . .) doesn't exist on my System. As i mentioned before: i do NOT use a VM or something similar.
I found a hint in the getting started guide, where they show an example Compilation on a Windows VM using the NONOS_SDK.. the Directory is exactly the same. Do i have to use another SDK or do i have to change the path for the Linker/Compiler? I know how to code C,.. but i'm completely new in this kind of SDK.

Some more Information for you

Error after "make"

tony@aspire-tob:~/Schreibtisch/Programming/esp8266/00_software$ make
LD build/app.out
/opt/Espressif/ESP8266_SDK/lib/libpwm.a(pwm.o): In function `pwm_insert_sort':
D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/pwm.c:125: undefined reference to `os_printf_plus'
D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/pwm.c:125: undefined reference to `os_printf_plus'
D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/pwm.c:125: undefined reference to `os_printf_plus'
D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/pwm.c:125: undefined reference to `os_printf_plus'
/opt/Espressif/ESP8266_SDK/lib/libpwm.a(pwm.o): In function `pwm_start':
D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/pwm.c:134: undefined reference to `os_printf_plus'
/opt/Espressif/ESP8266_SDK/lib/libpwm.a(pwm.o):D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/pwm.c:141: more undefined references to `os_printf_plus' follow
/opt/Espressif/ESP8266_SDK/lib/libpwm.a(pwm.o): In function `pwm_start':
D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/pwm.c:168: undefined reference to `NmiTimSetFunc'
D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/pwm.c:269: undefined reference to `NmiTimSetFunc'
/opt/Espressif/ESP8266_SDK/lib/libpwm.a(pwm.o): In function `pwm_get_period':
D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/D:\VM\Share\v1.1.0\LIGHT_RELEASE\esp_iot_sdk_v1.0.1_b3_light_source_xcc\app\pwm/pwm.c:361: undefined reference to `os_printf_plus'
collect2: error: ld returned 1 exit status
Makefile:116: recipe for target 'build/app.out' failed
make: *** [build/app.out] Error 1

The Makefile from the root-Project Dir:

Code: Select all

# Makefile for ESP8266 projects
#
# Thanks to:
# - zarya
# - Jeroen Domburg (Sprite_tm)
# - Christian Klippel (mamalala)
# - Tommie Gannert (tommie)
#
# Changelog:
# - 2014-10-06: Changed the variables to include the header file directory
# - 2014-10-06: Added global var for the Xtensa tool root
# - 2014-11-23: Updated for SDK 0.9.3
# - 2014-12-25: Replaced esptool by esptool.py

# Output directors to store intermediate compiled files
# relative to the project directory
BUILD_BASE   = build
FW_BASE      = firmware

# base directory for the compiler
XTENSA_TOOLS_ROOT ?= /opt/Espressif/crosstool-NG/builds/xtensa-lx106-elf/bin

# base directory of the ESP8266 SDK package, absolute
SDK_BASE   ?= /opt/Espressif/ESP8266_SDK

# esptool.py path and port
ESPTOOL      ?= /opt/Espressif/esptool-py/esptool.py
ESPPORT      ?= /dev/ttyUSB0

# name for the target project
TARGET      = app

# which modules (subdirectories) of the project to include in compiling
MODULES      = driver user
EXTRA_INCDIR    = include

# libraries used in this project, mainly provided by the SDK
LIBS      = c gcc hal pp phy net80211 lwip wpa main upgrade pwm

# compiler flags using during compilation of source files
CFLAGS      = -Os -g -O2 -Wpointer-arith -Wundef -Werror -Wl,-EL -fno-inline-functions -nostdlib -mlongcalls -mtext-section-literals  -D__ets__ -DICACHE_FLASH

# linker flags used to generate the main object file
LDFLAGS      = -nostdlib -Wl,--no-check-sections -u call_user_start -Wl,-static

# linker script used for the above linkier step
LD_SCRIPT   = eagle.app.v6.ld

# various paths from the SDK used in this project
SDK_LIBDIR   = lib
SDK_LDDIR   = ld
SDK_INCDIR   = include include/json

# we create two different files for uploading into the flash
# these are the names and options to generate them
FW_FILE_1_ADDR   = 0x00000
FW_FILE_2_ADDR   = 0x40000

# select which tools to use as compiler, librarian and linker
CC      := $(XTENSA_TOOLS_ROOT)/xtensa-lx106-elf-gcc
AR      := $(XTENSA_TOOLS_ROOT)/xtensa-lx106-elf-ar
LD      := $(XTENSA_TOOLS_ROOT)/xtensa-lx106-elf-gcc



####
#### no user configurable options below here
####
SRC_DIR      := $(MODULES)
BUILD_DIR   := $(addprefix $(BUILD_BASE)/,$(MODULES))

SDK_LIBDIR   := $(addprefix $(SDK_BASE)/,$(SDK_LIBDIR))
SDK_INCDIR   := $(addprefix -I$(SDK_BASE)/,$(SDK_INCDIR))

SRC      := $(foreach sdir,$(SRC_DIR),$(wildcard $(sdir)/*.c))
OBJ      := $(patsubst %.c,$(BUILD_BASE)/%.o,$(SRC))
LIBS      := $(addprefix -l,$(LIBS))
APP_AR      := $(addprefix $(BUILD_BASE)/,$(TARGET)_app.a)
TARGET_OUT   := $(addprefix $(BUILD_BASE)/,$(TARGET).out)

LD_SCRIPT   := $(addprefix -T$(SDK_BASE)/$(SDK_LDDIR)/,$(LD_SCRIPT))

INCDIR   := $(addprefix -I,$(SRC_DIR))
EXTRA_INCDIR   := $(addprefix -I,$(EXTRA_INCDIR))
MODULE_INCDIR   := $(addsuffix /include,$(INCDIR))

FW_FILE_1   := $(addprefix $(FW_BASE)/,$(FW_FILE_1_ADDR).bin)
FW_FILE_2   := $(addprefix $(FW_BASE)/,$(FW_FILE_2_ADDR).bin)

V ?= $(VERBOSE)
ifeq ("$(V)","1")
Q :=
vecho := @true
else
Q := @
vecho := @echo
endif

vpath %.c $(SRC_DIR)

define compile-objects
$1/%.o: %.c
   $(vecho) "CC $$<"
   $(Q) $(CC) $(INCDIR) $(MODULE_INCDIR) $(EXTRA_INCDIR) $(SDK_INCDIR) $(CFLAGS) -c $$< -o $$@
endef

.PHONY: all checkdirs flash clean

all: checkdirs $(TARGET_OUT) $(FW_FILE_1) $(FW_FILE_2)

$(FW_BASE)/%.bin: $(TARGET_OUT) | $(FW_BASE)
   $(vecho) "FW $(FW_BASE)/"
   $(Q) $(ESPTOOL) elf2image -o $(FW_BASE)/ $(TARGET_OUT)

$(TARGET_OUT): $(APP_AR)
   $(vecho) "LD $@"
   $(Q) $(LD) -L$(SDK_LIBDIR) $(LD_SCRIPT) $(LDFLAGS) -Wl,--start-group $(LIBS) $(APP_AR) -Wl,--end-group -o $@

$(APP_AR): $(OBJ)
   $(vecho) "AR $@"
   $(Q) $(AR) cru $@ $^

checkdirs: $(BUILD_DIR) $(FW_BASE)

$(BUILD_DIR):
   $(Q) mkdir -p $@

$(FW_BASE):
   $(Q) mkdir -p $@

flash: $(FW_FILE_1) $(FW_FILE_2)
   $(ESPTOOL) --port $(ESPPORT) write_flash $(FW_FILE_1_ADDR) $(FW_FILE_1) $(FW_FILE_2_ADDR) $(FW_FILE_2)

clean:
   $(Q) rm -rf $(FW_BASE) $(BUILD_BASE)

$(foreach bdir,$(BUILD_DIR),$(eval $(call compile-objects,$(bdir))))

THANK YOU!

I hope you can help me out!

Greetings

Posted: **Sun Feb 19, 2017 6:55 am**

Hello Again!

I've finaly set up the open-sdk and modified my Makefile till the point that it will nearly work for my project.
Now i got (hopefully) only one problem to solve:

The linker told me, that there is an undefined reference to os_zalloc() Function..
I have absolutely no idea why this happens..

So here is my new (modified) Makefile:

Code: Select all

# Makefile for ESP8266 projects
#
# Thanks to:
# - zarya
# - Jeroen Domburg (Sprite_tm)
# - Christian Klippel (mamalala)
# - Tommie Gannert (tommie)
#
# Changelog:
# - 2014-10-06: Changed the variables to include the header file directory
# - 2014-10-06: Added global var for the Xtensa tool root
# - 2014-11-23: Updated for SDK 0.9.3
# - 2014-12-25: Replaced esptool by esptool.py

# Output directors to store intermediate compiled files
# relative to the project directory
BUILD_BASE   = build
FW_BASE      = firmware

# base directory for the compiler
XTENSA_TOOLS_ROOT ?= /home/tony/esp8266/esp-open-sdk/xtensa-lx106-elf/bin

# base directory of the ESP8266 SDK package, absolute
SDK_BASE   ?= /home/tony/esp8266/esp-open-sdk/ESP8266_NONOS_SDK_V2.0.0_16_08_10


# esptool.py path and port
ESPTOOL      ?= /home/tony/esp8266/esp-open-sdk/esptool/esptool.py
ESPPORT      ?= /dev/ttyUSB0

# name for the target project
TARGET      = app

# which modules (subdirectories) of the project to include in compiling
MODULES      = driver user
EXTRA_INCDIR    = include

# libraries used in this project, mainly provided by the SDK
LIBS      = c gcc hal pp phy net80211 lwip wpa main upgrade pwm

# compiler flags using during compilation of source files
CFLAGS      = -Os -g -O2 -Wpointer-arith -Wundef -Werror -Wl,-EL -fno-inline-functions -nostdlib -mlongcalls -mtext-section-literals  -D__ets__ -DICACHE_FLASH

# linker flags used to generate the main object file
LDFLAGS      = -nostdlib -Wl,--no-check-sections -u call_user_start -Wl,-static

# linker script used for the above linkier step
LD_SCRIPT   = eagle.app.v6.ld

# various paths from the SDK used in this project
SDK_LIBDIR   = lib
SDK_LDDIR   = ld
SDK_INCDIR   = include include/json

# we create two different files for uploading into the flash
# these are the names and options to generate them
FW_FILE_1_ADDR   = 0x00000
FW_FILE_2_ADDR   = 0x40000

# select which tools to use as compiler, librarian and linker
CC      := $(XTENSA_TOOLS_ROOT)/xtensa-lx106-elf-gcc
AR      := $(XTENSA_TOOLS_ROOT)/xtensa-lx106-elf-ar
LD      := $(XTENSA_TOOLS_ROOT)/xtensa-lx106-elf-gcc



####
#### no user configurable options below here
####
SRC_DIR      := $(MODULES)
BUILD_DIR   := $(addprefix $(BUILD_BASE)/,$(MODULES))

SDK_LIBDIR   := $(addprefix $(SDK_BASE)/,$(SDK_LIBDIR))
SDK_INCDIR   := $(addprefix -I$(SDK_BASE)/,$(SDK_INCDIR))

SRC      := $(foreach sdir,$(SRC_DIR),$(wildcard $(sdir)/*.c))
OBJ      := $(patsubst %.c,$(BUILD_BASE)/%.o,$(SRC))
LIBS      := $(addprefix -l,$(LIBS))
APP_AR      := $(addprefix $(BUILD_BASE)/,$(TARGET)_app.a)
TARGET_OUT   := $(addprefix $(BUILD_BASE)/,$(TARGET).out)

LD_SCRIPT   := $(addprefix -T$(SDK_BASE)/$(SDK_LDDIR)/,$(LD_SCRIPT))

INCDIR   := $(addprefix -I,$(SRC_DIR))
EXTRA_INCDIR   := $(addprefix -I,$(EXTRA_INCDIR))
MODULE_INCDIR   := $(addsuffix /include,$(INCDIR))

FW_FILE_1   := $(addprefix $(FW_BASE)/,$(FW_FILE_1_ADDR).bin)
FW_FILE_2   := $(addprefix $(FW_BASE)/,$(FW_FILE_2_ADDR).bin)

V ?= $(VERBOSE)
ifeq ("$(V)","1")
Q :=
vecho := @true
else
Q := @
vecho := @echo
endif

vpath %.c $(SRC_DIR)

define compile-objects
$1/%.o: %.c
   $(vecho) "CC $$<"
   $(Q) $(CC) $(INCDIR) $(MODULE_INCDIR) $(EXTRA_INCDIR) $(SDK_INCDIR) $(CFLAGS) -c $$< -o $$@
endef

.PHONY: all checkdirs flash clean

all: checkdirs $(TARGET_OUT) $(FW_FILE_1) $(FW_FILE_2)

$(FW_BASE)/%.bin: $(TARGET_OUT) | $(FW_BASE)
   $(vecho) "FW $(FW_BASE)/"
   $(Q) $(ESPTOOL) elf2image -o $(FW_BASE)/ $(TARGET_OUT)

$(TARGET_OUT): $(APP_AR)
   $(vecho) "LD $@"
   $(Q) $(LD) -L$(SDK_LIBDIR) $(LD_SCRIPT) $(LDFLAGS) -Wl,--start-group $(LIBS) $(APP_AR) -Wl,--end-group -o $@

$(APP_AR): $(OBJ)
   $(vecho) "AR $@"
   $(Q) $(AR) cru $@ $^

checkdirs: $(BUILD_DIR) $(FW_BASE)

$(BUILD_DIR):
   $(Q) mkdir -p $@

$(FW_BASE):
   $(Q) mkdir -p $@

flash: $(FW_FILE_1) $(FW_FILE_2)
   $(ESPTOOL) --port $(ESPPORT) write_flash $(FW_FILE_1_ADDR) $(FW_FILE_1) $(FW_FILE_2_ADDR) $(FW_FILE_2)

clean:
   $(Q) rm -rf $(FW_BASE) $(BUILD_BASE)

$(foreach bdir,$(BUILD_DIR),$(eval $(call compile-objects,$(bdir))))

and the Error-Message from the Linker:

tony@aspire-tob:~/../00_software$ make
CC user/user_main.c
AR build/app_app.a
LD build/app.out
build/app_app.a(user_main.o): In function `user_init':
/home/tony/git/KIttyH0me/00_software/user/user_main.c:95: undefined reference to `os_zalloc'
/home/tony/git/KIttyH0me/00_software/user/user_main.c:101: undefined reference to `os_zalloc'
/home/tony/git/KIttyH0me/00_software/user/user_main.c:101: undefined reference to `os_zalloc'
collect2: error: ld returned 1 exit status
Makefile:117: recipe for target 'build/app.out' failed
make: *** [build/app.out] Error 1

I've allready double-checked the paths in the Makefile.

I've included:

Code: Select all

#include "ets_sys.h"
#include "osapi.h"
#include "gpio.h"
#include "os_type.h"
#include "user_config.h"
#include "user_interface.h"
#include "espconn.h"
#include "uart.h"

Any idea what goes wrong?

Thanks Again,
Tony

ESP8266 Community Forum

Problems setting up a Custom-Makefile

Problems setting up a Custom-Makefile

Re: Problems setting up a Custom-Makefile