STM32 NUCLEO-F767ZI with TOPPERS OS

This demo uses the STM32 NUCLEO-F767ZI board running the TOPPERS OS to communicate with Azure IoT Central via MQTT.

This demo requires the following projects

TOPPERS Project: https://dev.toppers.jp/trac_user/contrib/browser/azure_iot_hub_f767zi/trunk

IDE environment: https://code.visualstudio.com Download the compilation environment

MSYS2: https://www.msys2.org
$ pacman ?Syu
$ pacman ?Su
$ pacman -S make

ARM Compiler:
https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-rm/downloads
gcc-arm-none-eabi-10-2020-q4-major-win32.exe

Select the [Extensions] icon [Ctl+Shift+X] in VSCODE C/C++ for Visual Studio Code Coretex-Debug Installation When you are ready, follow the steps below to create the environment

1. Put wolfmqtt under "trunk-473/" as follows
   trunk-473/wolfMQTT-master
2. Put wolfssl under "trunk-473/" as follows(For example, if you want to replace it with the latest version)
   trunk-473/wolfssl
3. VSCODE menu
   [File]->[Add Folder to WorkSpace...]
   wolfMQTT-master/IDE/F767ZI-TOPPERS
4. .c_cpp_properties.json
   "compilerPath": "/Applications/ARM/bin/arm-none-eabi-gcc",
   Specify the path where you installed your arm-none-eabi-gcc

trunk-473/Makefile Add
LIBWOLFMQTT = wolfMQTT-master/IDE/F767ZI-TOPPERS/Debug/libwolfmqtt.a
$(LIBWOLFMQTT):
$(MAKE) -j -C wolfMQTT-master/IDE/F767ZI-TOPPERS all

$(ASP_ELF): $(LIBKERNEL) $(LIBWOLFSSL) $(LIBZLIB) $(LIBAZURE_IOT_SDK)
Change
$(ASP_ELF): $(LIBKERNEL) $(LIBWOLFSSL) $(LIBWOLFMQTT) $(LIBZLIB) $(LIBAZURE_IOT_SDK)

Add
refresh:
rm -f $(LIBWOLFMQTT)
clean:
$(MAKE) -j -C wolfMQTT-master/IDE/F767ZI-TOPPERS clean
realclean:
$(MAKE) -j -C wolfMQTT-master/IDE/F767ZI-TOPPERS clean

trunk-473/Makefile/app_iothub_client/Debug/Makefile
Add
INCLUDES += -I$(SRCDIR)/../wolfMQTT-master/IDE/F767ZI-TOPPERS
$(SRCDIR)/../wolfMQTT-master/IDE/F767ZI-TOPPERS/Debug/libwolfmqtt.a
INCLUDES += -I$(SRCDIR)/../wolfMQTT-master/IDE/F767ZI-TOPPERS

trunk-473/wolfssl-4.7.0/user_settings.h
#ifndef HAVE_LIBZ
#define HAVE_LIBZ
#endif
delete

trunk-473/wolfssl-4.7.0/Makefile
Add
C_FLAGS += -D_USE_LONG_TIME_T
CXX_FLAGS += -D_USE_LONG_TIME_T

Change the stack size asp_baseplatform/monitor/monitor.h #define MONITOR_STACK_SIZE 2046 to 4096

app_iothub_client/src/command.c Add extern int Wolf_MQTT_main(int argc, char **argv);

app_iothub_client/src/command.c {"IOT", iothub_client_main}, Change iothub_client_main to Wolf_MQTT_main

Build VSCODE Menu [Terminal]->[Run Task]->[build all]

Writing to the board [Terminal]->[Run Task]->[write app]

Terminal settings
https://ja.osdn.net/projects/ttssh2/
Install Tera Term
Serial setting of COM3(If it is not in COM3, please check it in system)
Setup speed 115200

Wait for a while to get the time from NTP
Sun Dec 12 14:52:18 2021

Input the following
mon>device iot

Communication will be started.