STM32F4

• Using the stm32f407-discovery board.
• Making PID Controller

Current Status

• stm32f407_gpio.h complete (now can be used !!).
• stm32f407_usart.h complete (now can be used !!).
• stm32f407_adc.h complete (now can be used !!).
• stm32f407_dac.h complete (now can be used !!).
• light.c complete.
• ADC complete.
• USART complete.
• DAC complete.

Under Development:

• PID controller : the next thing after DAC

Prequistes

• To flash code on board - openocd
• Arm 32 bit compiler - arm-none-eabi-gcc
• nostdlib
• For checking code and debugging - readelf
• For debugging - gdb, lldb (for mac)
• For usart - qemu

Using the Library

Caution: while using library global variables can't be used.

• While using the library main() function has to be replaced by start()

int start() {                   // has to be always int
  ...
}

Running the Code !

1. To compile light.c:

$ make compile_light

2. To compile adc.c:

$ make compile_adc

3. To compile usart.c:

$ make compile_usart

4. To compile dac.c:

$ make compile_dac

5. To flash the code onto the board:

$ make run

6. To debug:

$ make debug

7. To analyze(recheck) the code and see the memory (readelf):

$ make read

8. To clean (clear object files):

$ make clean

References

RM0090 Reference manual

Lisence

MIT