Wireless MCUのトピックRe: kw36 ecdh crash

kw36 ecdh crash

darkblue — Fri, 10 Nov 2023 07:38:42 GMT

Hi Tech Support

My project is frdmkw36-wireless_examples_bluetooth_ancs_c_freertos, when I call

ECDH_P256_GenerateKeys the program go crash, hardfault. Please see to this issue ,Thanks

Re: kw36 ecdh crash

EduardoZamora — Fri, 10 Nov 2023 17:03:57 GMT

Hello @darkblue

Could you please provide more details on where are you calling this function in your code?

What SDK version are you using?

Any additional information is appreciated.

Regards,
Eduardo.

Re: kw36 ecdh crash

darkblue — Wed, 15 Nov 2023 06:41:28 GMT

the SDK version is 2.2.10, I called the API when I finished initiation

Re: kw36 ecdh crash

EduardoZamora — Wed, 15 Nov 2023 20:32:27 GMT

Hi,

Could you please provide an overview of the modifications you have added to your project? This is so I can try to investigate more on this issue and try to replicate it on my side.

Also, there should be a newer version of the KW36 SDK, you can download it from the MCUXpresso SDK Builder. Please, install the latest SDK version and test your application again.

Regards,
Eduardo.

Re: kw36 ecdh crash

darkblue — Thu, 16 Nov 2023 05:45:00 GMT

Hi @EduardoZamora

I called ECDH_P256_GenerateKeys in gInitializationComplete_c:

And It leads to Hardfault. Turns out it halted at Bi_compare function which I can't find the definition

The outPoint is a ecdhPoint_t structure, and the privateKey is ecdhPrivateKey_t

Re: kw36 ecdh crash

EduardoZamora — Thu, 16 Nov 2023 17:40:04 GMT

Hi,

My apologies, I was not able to replicate this behavior. Is this the only modification you have added to the project? By any chance, are you using a custom board or is it a FRDM-KW36 Development Kit?

I added this modification on my side using frdmkw36_wireless_examples_bluetooth_ancs_c_freertos from KW36 SDK 2.2.10 and FRDM-KW36 board and no hardfault is triggered.

Regards,
Eduardo.