About cameronf

cameronf · 2019-03-21

I'm having trouble reading/writing to internal flash on an STM32H743XI. For a while I've been erasing/programming sectors of internal flash from a custom bootloader without issue but I somehow got the chip into a state now where 4 sectors can no lon...

cameronf · 2019-08-05

If you plan on eventually writing a custom bootloader for this board you could prioritize that and use that as your primary way of flashing the external FLASH. That's what I've done in the past because I wasn't sure what options there were for custo...

cameronf · 2019-07-31

Are you calling invalidate() for the TextArea as well?Can you breakpoint in your code to see what's in mainScreenDateMonthTextBuffer to see if that get's overwritten somewhere?

cameronf · 2019-07-11

It probably was another unhandled IRQ triggering but when you end up in the Default_Handler your debugger will say it's the WWDG_IRQHandler in the call stack. If you don't have a HardFault_Handler defined that seems like the most likely culprit. If...

cameronf · 2019-07-10

Are you calling __HAL_RCC_CRC_CLK_ENABLE() anywhere? This needs to get enabled before starting the touchgfx task or it will crash. I think having the debugger attached powers some clocks depending on options so could possibly mask the problem of no...

cameronf · 2019-07-10

Don't have any touchgfx specific ideas but have another longshot idea.Do you have any memory buffers declared as byte arrays but that would get used with 32-bit aligned access? Normally when the mcu does 32bit aligned access on a non-32bit aligned a...

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STM32H7 Internal Flash Error

Re: Programming external QSPI flash on a custom Board

Re: code on simulator and on board have different behaviour

Re: WWDG_IRQHandler during screen change

Re: Startup problem

Re: Startup problem