About ccvelandres

ccvelandres · 2019-07-24

I am encountering a consistent hard fault (CFSR.IMPRECISERR with HFSR.FORCED bit set) on my program with FreeRTOS v10. I can fully reproduce the fault everytime and same conditions so I'm sure this can be fixed. Just need to know what causes it.Speci...

ccvelandres · 2019-07-28

> ... Especially what you mean with "dynamically allocated".Just a hypothetical situation where the buffer is dynamically allocated and also the other buffer getting overwritten is dynamically allocated in the heap. How would you catch instances of b...

ccvelandres · 2019-07-25

Found the cause! Turns out one of the libraries I'm using was using a static buffer at 0x2000DAD0 to 0x2000DB34 (size 100 bytes). And it was having a buffer overflow which then causes to overwrite the hspi1 struct. Increasing the size of the buffer f...

ccvelandres · 2019-07-25

I managed to catch the time when the fault was just about to occur and I found the cause. Danish was right. hspi->Instance was zero everytime the fault occurs. And as JW pointed out, the cause was a STR instruction.The address 0x2000DB34 contains th...

ccvelandres · 2019-07-25

Sorry, this is my first time diagnosing hard faults. Also, I'm not knowledgeable on assembly instructions yet. I turned off the write buffering, and now it's precise fault and the BFARVALID bit is set. BFAR -> 0x00000004On disassembly, just before th...

ccvelandres · 2019-07-25

Okay, I found the register. Its at 0xE000 E008. But I don't know how to modify the register..

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STM32f303 Imprecise data access error (debugging hard faults)

Re: STM32f303 Imprecise data access error (debugging hard faults)

Re: STM32f303 Imprecise data access error (debugging hard faults)

Re: STM32f303 Imprecise data access error (debugging hard faults)

Re: STM32f303 Imprecise data access error (debugging hard faults)

Re: STM32f303 Imprecise data access error (debugging hard faults)