S32KのトピックRe: decices selection when debugging s32k314

decices selection when debugging s32k314

luhaiou — Fri, 19 Apr 2024 06:13:39 GMT

When I choose NXP s32K3 series device with cyclone and IAR IDE,I found 3 types and what are their differences

s32k314,

s32k314-EMU,

s32k314-SECUREBOOT

Re: decices selection when debugging s32k314

VaneB — Fri, 19 Apr 2024 19:13:56 GMT

Hi @luhaiou

S32K314: during debug entry a hard reset is toggled. Default target.

S32K314-EMU: is no longer available in the latest versions.

S32K314-SECUREBOOT: used when JTAG protection is set or secure boot. Prevents to clear the authentication when enters to debug.

B.R.

VaneB

Re: decices selection when debugging s32k314

luhaiou — Mon, 22 Apr 2024 03:26:31 GMT

Now that I've turned on the secure boot feature, I still have S32K314 selected and nxp_s32k341_1x32x256k_hse_enabled.arp selected when debugging.

I didn't choose S32K314-SECUREBOOT, it still debugs normally, is it necessary to choose S32K314-SECUREBOOT?

Re: decices selection when debugging s32k314

VaneB — Mon, 22 Apr 2024 18:20:06 GMT

Hi @luhaiou

The S32K3xx device with HSE firmware installed does not necessarily need secure debugger authentication. When installing HSE, the device is initially in lifecycle CUST_DEL, which has debug access open. It is not until advancing the life cycle that secure debugging is required.