2381525_en-US

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S32k328 HSE DomainID

Hello, NXP Technical Team

I am writing to inquire about accurately verifying the S32k328 Domain ID.

I am currently using an S32k328 board and HSE Firmware.

- Setup Environment:

I am using the HSE Firmware image s32k358_hse_fw_1.14.0_2.40.0_pb230807.bin.

I am currently in a multi-core state and using RM module(only use XRDC).

- Question:

In the HSE FW RM, the S32k328 Domain ID is set to 2 as shown in the attachment.

dpsdprtmvl_1-1781577003974.png

However, in the S32k328 Block Diagram within the S32k3xx RM, the HSE is set to MDAC3, and the DID (Domain ID) of MDAC3 is output as 3.

dpsdprtmvl_2-1781577150058.png

(1) Register Verification Code:

uint32_t mda[8];

mda[0] = IP_XRDC->MDA_W0_0_DFMT0;

mda[1] = IP_XRDC->MDA_W0_1_DFMT1;

mda[2] = IP_XRDC->MDA_W0_2_DFMT1;

mda[3] = IP_XRDC->MDA_W0_3_DFMT0;

mda[4] = IP_XRDC->MDA_W0_4_DFMT0;

mda[5] = IP_XRDC->MDA_W0_5_DFMT1;

mda[6] = IP_XRDC->MDA_W0_6_DFMT0;

mda[7] = IP_XRDC->MDA_W0_7_DFMT1;

UART_Print("--- MDA Locks ---\n");

for (uint32_t i = 0; i < 8; i++)

{

uint32_t vld = (mda[i] >> 31) & 1U;

uint32_t lk1 = (mda[i] >> 30) & 1U;

uint32_t did = mda[i] & 0x3U;

UART_Print("MDA%lu=0x%lx VLD=%lu DID=%lu LK1=%lu %s\n",(unsigned long)i, (unsigned long)mda[i],(unsigned long)vld, (unsigned long)did, (unsigned long)lk1,lk1 ? "(LOCKED)" : "");

}

(2) Register Value:

MDA0=0x80000000 VLD=1 DID=0 LK1=0
MDA1=0x20000000 VLD=0 DID=0 LK1=0
MDA2=0x20000000 VLD=0 DID=0 LK1=0
MDA3=0xc0000003 VLD=1 DID=3 LK1=1 (LOCKED)
MDA4=0x80000001 VLD=1 DID=1 LK1=0
MDA5=0x20000000 VLD=0 DID=0 LK1=0

What is the correct S32k328 Domain ID?

Re: S32k328 HSE DomainID

Hi @dpsdprtmvl

S32K328 has four domains 0-3 and HSE is always assigned to highest available domain – to domain 3 in this case:

lukaszadrapa_0-1781608491449.png

This is hardwired and it cannot be changed.

The Table 136 is little bit confusing because it shows only main derivatives, not all sub-derivatives. That means:

S32K32x in the second row stands for S32K322 and S32K324.

S32K35x in the third row stands for S32K358, S32K356, S32K348, S32K338, S32K328 and S32K37x and S32K39x derivatives.

Regards,

Lukas