topic HSE data reflected in memory only after multiple soft resets in S32K

HSE data reflected in memory only after multiple soft resets

abdul_rahiman_csg — Sun, 11 Jan 2026 15:55:20 GMT

Steps followed:
1. Provide the HSE ELF file (containing HSE data bytes programmed at HSE memory locations) to Cyclone image creator
2. Create a Cyclone .sap file to enable and program HSE.
3. Flash the .sap file on the S32K312 board using the Cyclone debugger via JTAG.
4. Perform a power cycle.
5. Load the workspace and verify HSE data in memory.
6. Perform multiple soft resets via the debugger.

Observed behavior:
• After the initial power cycle, the HSE data is not immediately reflected in memory.
• The HSE data becomes visible in memory only after multiple soft resets. (Issue)
• Also tried allowing with delay, still the same behavior

Question:
• Why are multiple soft resets required for the HSE data to be reflected in memory?
• Is there a recommended workaround (e.g.,reset sequence, or configuration change)?

Re: HSE data reflected in memory only after multiple soft resets

lukaszadrapa — Mon, 12 Jan 2026 06:31:45 GMT

Hi @abdul_rahiman_csg

First of all, could you please explain what do you mean by "Provide the HSE ELF file (containing HSE data bytes programmed at HSE memory locations)"?

When HSE firmware is installed, only HSE has exclusive access rights to HSE secure memory (HSE firmware, HSE data). Secure memory is removed from memory map and user can't access it at all.

Regards,

Lukas

Re: HSE data reflected in memory only after multiple soft resets

abdul_rahiman_csg — Mon, 12 Jan 2026 09:05:07 GMT

This ELF contains HSE data programmed in the address ranges
0x004D2000–0x004D2060 and
0x1B000000–0x1B000360

Re: HSE data reflected in memory only after multiple soft resets

lukaszadrapa — Tue, 13 Jan 2026 07:54:05 GMT

Hi @abdul_rahiman_csg

This does not make sense from microcontroller point of view. It seems to be related to tools. Could you try to discuss this with Pemicro directly?

https://www.pemicro.com/support/index.cfm

Regards,

Lukas