STM8 Development

This is documentation for project developing STM8 using Arduino IDE and stm8flash

Preparation

Hardware
- STM8S103F3P6 Mini Dev Board
- ST-Link V2

Software

Arduino IDE for STM8 Board - sduino : https://github.com/tenbaht/sduino

This open source project to make Arduino IDE can compile a code for STM8

stm8flash : https://github.com/vdudouyt/stm8flash

The open source program for uploading hex file into STM8

Wiring

STM8 --- ST-Link V2
3.3v --- 3.3v
SWMI --- SWIM
GND  --- GND
NRST --- RST

Arduino IDE - sduino

Start the Arduino-IDE. In File->Preferences, Settings tab, enter

https://github.com/tenbaht/sduino/raw/master/package_sduino_stm8_index.json

as an Additional Boards Manager URL.

Open Tools->Board:...->Boards Manager
Find Sduino by typing 'sd' into the search line
Click on the list entry
Click on Install

Now you should find a new entry STM8S Boards in the list at Tools->Board:...

Choose STM8S103F3 Breakout Board from the list
open the standard Blink example from File->Examples->01. Basics->Blink
compile it by hitting Verify

stm8flash

only for Linux Ubuntu Download stm8flash and depedencies

$ git clone https://github.com/vdudouyt/stm8flash.git

$ sudo apt-get install libusb-1.0-0-dev

Compile and Install stm8flash Tool

$ cd stm8flash

$ make

$ sudo make install

Create 99-stlinkv2.rules

$ sudo gedit /etc/udev/rules.d/99-stlinkv2.rules

and copy this into the file

# stm32 discovery boards, with onboard st/linkv2
# ie, STM32L, STM32F4.
# STM32VL has st/linkv1, which is quite different

SUBSYSTEMS=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="3748", \
    MODE:="0666", \
    SYMLINK+="stlinkv2_%n"

SUBSYSTEMS=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="374b", \
    KERNEL!="sd*", KERNEL!="sg*", KERNEL!="tty*", SUBSYSTEM!="bsg", \
    MODE:="0666", \
    SYMLINK+="stlinkv2_%n"

SUBSYSTEMS=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="374b", \
    KERNEL=="sd*", MODE:="0666", \
    SYMLINK+="stlinkv2_disk"

SUBSYSTEMS=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="374b", \
    KERNEL=="sg*", MODE:="0666", \
    SYMLINK+="stlinkv2_raw_scsi"

SUBSYSTEMS=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="374b", \
    SUBSYSTEM=="bsg", MODE:="0666", \
    SYMLINK+="stlinkv2_block_scsi"

SUBSYSTEMS=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="374b", \
    KERNEL=="tty*", MODE:="0666", \
    SYMLINK+="stlinkv2_console"

# If you share your linux system with other users, or just don't like the
# idea of write permission for everybody, you can replace MODE:="0666" with
# OWNER:="yourusername" to create the device owned by you, or with
# GROUP:="somegroupname" and control access using standard unix groups.

The last step is

$ echo 'SUBSYSTEM=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="3748", MODE="0666"' | sudo tee /etc/udev/rules.d/99-stlinkv2.ruleS > /dev/null

Unlocking a write protected MCU

$ stm8flash -cstlinkv2 -pstm8s103?3 -u

Command for uploading the hex file into STM8

$ stm8flash -c stlinkv2 -p stm8s103f3 -s flash -w /tmp/arduino_build_10931/Blink.ino.hex

where /tmp/arduino_build_10931/Blink.ino.hex is the location of compiled file using Arduino IDE

Example

List of example

1. LCD 16x2