Arduino for STM32

one thing to try is to press and hold reset when you flash the sketch over st-link, this is called 'connect under reset'. If the tool chain is properly installed, sometimes that will override the write protection. flash a simple sketch such as to blink the led, so that you know if after all it is wo...

For beginners, it is much easier to simply follow the getting started guide https://github.com/stm32duino/Arduino_Core_STM32/wiki/Getting-Started and to use a supported board on the STM core page. https://github.com/stm32duino/Arduino_Core_STM32 it is also suggested to get a chip that has more sram ...

jneymeyer There are some pre-requisites The first place to visit is the stm32duino wiki - which is hosted in Github instead of here. https://github.com/stm32duino/Arduino_Core_STM32/wiki Among that is the getting started guide https://github.com/stm32duino/Arduino_Core_STM32/wiki/Getting-Started Th...

if you bought it from e.g. weact
https://github.com/WeActStudio/MiniSTM32H7xx
you may need to contact them

there could be more than a few vendors, hence, it may not after all be weact, you may like to check from where you bought the board from

officially u'd need to get a stm32f103c{b,B}t6, that one has 128 k per specs, c8 is 64k per specs. So if you think you literally have 128k memory, you can try a variant for 128k e.g. maple mini. The details are actually in the ld script, check in there in the variant. Alternatively, get something li...

try something like a stm32 f4xx (e.g. stm32f401 / f411 ) board, those has the FPU, but that it is for floats only.

other things to try are to move the computation codes into loop() and only use the ISR callback to simply count cycles, e.g. increment a global variable.

PC14 OSC32_IN PC15 OSC32_OUT is normally used for a 32 khz crystal for the RTC. it is probably not a good idea to use them as gpio ports. e.g. there is likely a 'not gate' connecting PC14 to PC15 with some extra stuff. that 'not gate' is literally used as an amplifier, given sufficient conditions e,...

The trouble with operating in 32 bits is you need a gcc-none-eabi compiler built for 32 bits. Fortunately, they are there https://developer.arm.com/downloads/-/gnu-rm and not least, you need the full suite of glibs and libs that gcc runs on, along with any libs that the rest of the tools depends on....

dannyf I think the op kind of mentions that stm32g071 timers can do 128 Mhz. it is something quite interesting to explore, that is practically VHF, FM radio frequencies if you noted. in a sense if that is possible, even for that matter use it as an oscillator, mix it with FM radio waves from an ant...

assuming that you are using stm32f103. I think in stm32f103 the timers are 16 bits. but that it has a prescaler which is 16 bits I've not reviewed the codes really. But that keep rm0008 handy as it tells you what is ultimately available in the hardware. https://www.st.com/resource/en/reference_manua...