Development

Requirements to Compile STMBL Firmware

• gcc-arm-none-eabi-gcc https://launchpad.net/gcc-arm-embedded/+download
• stlink https://github.com/texane/stlink
• dfu-util
• For windows: STM32 virtual COMport: http://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-utilities/stsw-stm32102.html

Linux/Mac? Add your username to the dialout group to be able to access the com ports. If you have used the Arduino IDE before, this is probably already set:

sudo usermod -a -G dialout username

Linux udev rules:

SUBSYSTEM=="usb", ACTION!="add", GOTO="objdev_rules_end"
#stmbl
ATTR{idVendor}=="0483", ATTR{idProduct}=="5740", ENV{ID_MM_DEVICE_IGNORE}="1", GROUP="users", MODE="0666"
#ST USB bootloader
ATTR{idVendor}=="0483", ATTR{idProduct}=="df11", GROUP="users", MODE="0666"
LABEL="objdev_rules_end"

if you get AT commands showing up in servoterm: http://www.pezzino.ch/stm32f3-discovery-usb-virtual-com-port/

Flashing STMBL Hardware

STMBL has a USB bootloader on both controllers to flash new firmware. This requires dfu-util to be installed.

Flashing the LV side with dfu-util can be invoked by make btburn. If dfu-util detects multiple targets, make sure to connect only one STMBL board. The bootloader should be entered automatically. If not, adjust the printf statement in the btburn target to your device.

Flashing the HV side can be done with make -f stm32f303/Makefile btburn. There is a bug with the F3 processor on the HV side where you probably have to plug cycle the USB connection a couple of times to successfully enter the bootloader when flashing with dfu-util.

When the firmware is corrupted, or to flash the f1 micro controller on the high voltage side of older STMBL v3, you need to flash via SWD (serial wire debug).

The bootloader can also entered by shorting DIO to GND.

Using SWD

SWD requires an st-link programmer which can be found on ebay, or on any STM Discovery board. Install stlink: https://github.com/texane/stlink

Flash via SWD:

make boot_flash for the stm32f405 bootloader
make hv_flash for the stm32f103 main app (high voltage side)

For v4 boards, flashing via SWD:

• For the STM32 F4 (low voltage):
  make flash
  `make -f bootloader/Makefile flash
  
• For the STM32 F3 (high voltage):
  make -f stm32f303/Makefile flash
make -f f3dfu/Makefile flash
  

JP1 and JP7 are the SWD headers for the f1 and f4 respectively.

To use an stm32f4 discovery as an stlink programmer:

• remove both jumpers from CN3 on the discovery board
• connect pin 2,3,4,5 of the SWD connector to CLK,GND,DIO,RST on the STMBL board
• make burn

Branches

master

Mostly new stuff, should always work.

newstuff

Experimental new stuff, not guaranteed to always work.

motsim

Simulation and PID stuff, may be broken at any time.

new_hal

New hal component format

new_scope

New terminal software using wxMathPlot. experimental.

troller

f1 firmware development for the troller.