S32KのトピックRe: csec error bits

csec error bits

fan1234 — Thu, 26 Mar 2026 07:50:29 GMT

Hi,

meet some problem when using CSEC with s32k144 , when does csec driver

1. return ERC_GENERAL_ERROR (operating "Resetting Flash to the Factory State")

2. return ERC_KEY_EMPTY, seems key not loaded, what's the possible reason?

BR!

Re: csec error bits

Senlent — Fri, 27 Mar 2026 01:40:50 GMT

Hi@fan1234

Before resetting Flash to the Factory State, you should ensure that the CSEc module has loaded the key.

Judging from your error messages, it seems you haven't loaded the key to CSEc or there was an error during the key loading process.

Re: csec error bits

fan1234 — Fri, 27 Mar 2026 05:27:32 GMT

my sequence is , load the key after Configure Csec Module, and trigger a software reset. the Csec seems enabled(by check FCNFG bit), what will cause the error during key loading process?

Re: csec error bits

Senlent — Fri, 27 Mar 2026 06:55:54 GMT

Hi@fan1234

Do you have a test project? I cannot give specific possible reasons.