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BigBrick · 2024-07-31

Hi.I am absolute noob with stm32 and i am currently trying to connect GY-GPS6MV2 module to RobotDyn STM32 Mini(STM32F103C8T6). I have connected GPS module to pins and set up USART1 in asyncronous mode. I have done everethyng according to official ex...

BigBrick · 2024-08-01

Thank you, setting BOOT0 jumper to low fixed it.

BigBrick · 2024-08-01

I ckecked memory during after reset:This is why i have invalid SP/MSP. But where does this value come from?

BigBrick · 2024-08-01

I checked memory with STM32CubeProgrammer0x20005000 is correct value for _estack and 0x080006f9 is address of ResetHandlerSo this should mean, that chip should start directly at Reset_Handler without any prior bootloader and msp/sp values should be 0...

BigBrick · 2024-08-01

Is there any way to look at bootloader code that CubeIDE loads into my STM?

BigBrick · 2024-08-01

I set up breakpoint at the start of startup_stm32f103c8tx.s and the value of SP is 0x200001fc. Shouldn't it be equal to 0x20005000 as defined in .symtab 20005000 0 NOTYPE GLOBAL DEFAULT 1 _estack? Is anything called prior to startup_stm32f103c8tx.s? ...

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Global variable overlaps with stack.

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