This repository contains source code examples for the ARM Cortex-M3 STM32F103C8T6 microcontroller.

• arm-none-eabi-gcc
• arm-none-eabi-gdb
• arm-none-eabi-newlib
• openocd (>= 0.8.0)
• make

$ make

You can change the default optimization level (-Og) through the OPT flag:

$ make clean
$ make OPT=-O3

Before uploading/flashing/debugging for the first time select the debug adapter:

$ ./dbgcfg
Please chose the debug interface:
[0] ST-LINK/V2
[1] ST-LINK/V2-1
[2] JLINK
[3] CMSIS-DAP
Choice:

After that, your choice will be stored on a local ".interface" file. You can change it at any time by invoking the dbgcfg script again.

To flash the microcontroller:

$ make flash

$ make clean

$ make bin

$ make hex

You can debug with gdb you can invoke the debug script (tui mode) or invoke gdb directly:

$ arm-none-eabi-gdb *.elf -x gdbcmd

If you have PyCortexMDebug installed you can invoke gdb with python:

$ arm-none-eabi-gdb *.elf -x pygdbcmd

This will make inspecting microcontroller's registers and bit fields much more convenient.