KV Store fault exception

[razario (Anton Zinchenko)]

I get a code from official sample KVStore - API references and tutorials | Mbed OS 6 Documentation

I rise first function

and it crush

– MbedOS Fault Handler –

++ MbedOS Error Info ++
Error Status: 0x80FF013D Code: 317 Module: 255
Error Message: Fault exception
Location: 0x8000DA8
Error Value: 0x24002794
Current Thread: main Id: 0x24004508 Entry: 0x8011CB1 StackSize: 0x1000 StackMem: 0x24001510 SP: 0x240022A8
For more info, visit: mbedos-error
– MbedOS Error Info –

[JohnnyK (Jan Kamidra)]

Hello,

I tried current example of KVStore (MbedStudio 1.4, NucleoF429ZI, MbedOS 6.9) and no errors

So probably some configuration or a bug specific to your target or family H7, I don’t know.

BR, Jan

[YSI]

Hello razario,

I hope this post can help you.

NVStore API is deprecated, please use KVStore

Hello, Since mbed-os-5.15, when using NVStore, you have a warning: this API is obsolete. Please use KVStore instead. Well, I try to use the KVStore example which is actually the same example as the global KVStore API. I successfully use LPC1768, K64F and L432KC cards with NVStore but none with KVStore. I have simplified the example as much as possible with just : printf("kv_reset -> %d\n", err_code(kv_reset("/kv/"))); The error code depends on the cards, but nobody can reset KVStore. Error…

[JohnnyK (Jan Kamidra)]

Hello YSI,

good point but that is already set.

BR, Jan

[YSI]

Hello Johnny,

Sorry i forgot to check default set for this target.
I also test KVStore example (MbedStudio 1.4, NucleoH743ZI2, MbedOS 6.9) and no errors.

So it isn’t a bug specific to this target.

Best regards,
YSI