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How many external interrupts does the stm32f0 have?
The STM32F0 has more than 30 interrupts which depend on the STM32F0 device line. Each interrupt corresponds with a physical address (interrupt vector) which is simply used to indicate the position of the interrupt handler so that it can jump correctly.
The User button on the STM32F0 kit was connected to PA0 as follow: Obviously, EXTI0 is the one we need. Besides, EXTI0 and EXTI1 share the same interrupt handler (vector EXTI0 1 in the vector table) so just need to make sure that you check which one is triggered inside the handler (not mentioned in the video).
Where can I find the vector table in stm32f0?
The vector table can be found in the STM32F0 reference manual (p. 218). The NVIC has the ability to handle interrupts with different priorities as seen from the table above, the smaller number the priority column is, the higher priority it is.
Which is firmware is generated from stm32cubemx?
The firmware is based on generated code from STM32CubeMX using low-level (LL) libraries, compiled in SW4STM32, initialising only the basic system clock / systick and setting all GPIO pins to analogue (floating / High Z). The pseudo-code of the entire thing is as follows – standard init purely as-generated by CubeMX:
What happens when I jump to application ( STM32 )?
The best I can do once I JumpToApplication () is see what addresses the debugger stops at when I pause/step into. I am able to flash a program into Partition A (@address 0x8060000) and verify it with a CRC check.
Why does my debugger not trigger systick interrupt?
Populating a new bare PCB with just the micro, its associated smoothing/decoupling caps, and BMP/SWD (debug/ICP) header the SysTick interrupt would not fire and breakpoints set in the debugger would not trigger (setting break main would never trigger!).
Can a stm32f0 detect only one edge?
You can change to detect only one edge as well depend on your input signal. It’s your turn ! Now, simple exercise for you. You can try using the button and EXTI to control 2 LEDs on the kit. When you press the button, the green LED will blink slowly, let’s say 2 seconds delay and the blue LED blinks faster at 0.2s.