BARE METAL EMBEDDED BOARD TESTING

- simple rtos program to run 4 leds on board at specific delays each task having equal priority with printf(semihosting) functionality

- USAGE : To test stm32f4Discovery board (can test other boards as well)

- Running program on board

I) Connecting with openocd and gdb server on Ubuntu/Linux

• clone the repository
• install arm gcc toolchain and openocd : " sudo apt-get install gcc-arm-none-eabi binutils-arm-none-eabi gdb-arm-none-eabi openocd "
• confirm arm toolchain and openocd installation from follwoing command: "arm-none-eabi-gcc --version && openocd --version"
• connect your board (stm32f4 discovery board) : confirm the board detection from command : "lsusb" (this will show stlink)
• run the command : "make" (it will create the final.elf file and connect board with openocd)
• open new terminal (leave that terminal as it is) from the same directory and run command : "arm-none-eabi-gdb" (this will open gdb console)
• (inside gdb console)
• run the following command to connect with board via openocd : "target remote localhost:3333"
• run the command to reset and reintialize the board : "monitor reset init"
• run the command to flash the final.elf file on to the board : "monitor flash write_image erase final.elf"
• run the command to enable arm semihosting and see the printf statements on openocd console: "monitor arm semihosting enable"
• run the command to reset the board to get the board in debiggung mode : "monitor reset"
• run the command to stop debugging and resume the program : "monitor resume"
• run the command to halt the program and enter into debugging mode : "monitor halt"
• run the command to shutdown the connection of board with openocd: "monitor shutdown"

II) Connecting with openocd and telnet server on Ubuntu/Linux

• clone the repository
• install arm gcc toolchain, openocd and telnet: "sudo apt-get install gcc-arm-none-eabi binutils-arm-none-eabi gdb-arm-none-eabi openocd telnet"
• confirm arm toolchain and openocd installation from follwoing command: "arm-none-eabi-gcc --version && openocd --version"
• connect your board (stm32f4 discovery board) : confirm the board detection from command : "lsusb" (this will show stlink)
• run the command : "make" (it will create the final.elf file and connect board with openocd)
• open new terminal (leave that terminal as it is) from the same directory and run command : "telnet localhost 4444" (this will open telnet console connected with openocd)
• (inside telnet console)
• run the command to reset and reintialize the board : "reset init"
• run the command to flash the final.elf file on to the board : "flash write_image erase final.elf"
• run the command to enable arm semihosting and see the printf statements on openocd console: "arm semihosting enable"
• run the command to reset the board to get the board in debiggung mode : "reset"
• run the command to stop debugging and resume the program : "resume"
• run the command to halt the program and enter into debugging mode : "halt"
• run the command to shutdown the connection of board with openocd: "shutdown"

For more information go through the Makefile and programs to understand them better.

Other than stm32f4discovery boards can be tested just replace the stm32f4discovery.cfg file path with you board.cfg file which supports openocd

to find other boards cfg file On Ubuntu go to /usr/share/openocd/boards/