topic Re: What are the differences between FTFC and FTFM? in S32K

What are the differences between FTFC and FTFM?

reymor — Fri, 05 Jan 2024 10:55:36 GMT

Hi,

We know that:

FTFC is available for S32K1XX series
FTFM is available only for S32K14xW series

Apart from that, are there any functional differences?

We are using the emulated eeprom in both S32K144 and S32K144W and it seems that the same code snippet work in S32K144 and not in S32K144W. We use kind of

FLASH_DRV_EEEWrite(&flashSSDConfig, (uint32_t)(flashSSDConfig.EERAMBase), size, data)

After that, we saw that EERAMBase address has the right data.

The error occurs at the moment that we are trying to retrive the information from EERAMBase address.

This code works in S32K144 but not in S32K144W in which it arises an exception.

uint8_t * src=(uint8_t *) flashSSDConfig.EERAMBase; for (i = 0; i < n; i++) { dst[i] = src[i]; }

However, if we change `uint8_t` to `uint32_t` it works.

We are not sure if we need to read this with aligment to 32bits in FTFM.

Thanks in advance,

Re: What are the differences between FTFC and FTFM?

Julián_AragónM — Tue, 09 Jan 2024 20:23:10 GMT

Hi @reymor,

I hope you are doing well!

Designing an application for shared used between different devices is not recommended.

The flash memory modules are different implementations of the driver for the different devices. The error you are showing is likely due to the differences in the devices. Could you please share some additional information on what packages and versions are being used?

Just as a note, the SDK 3.x.x does not support S32K14xW MCU and the SDK 4.x.x available in S32DS 3.4 does.

Best regards,
Julián

回复： What are the differences between FTFC and FTFM?

346500452 — Wed, 10 Jan 2024 09:16:18 GMT

W系列，是4字节对齐。

Re: What are the differences between FTFC and FTFM?

reymor — Wed, 10 Jan 2024 09:19:57 GMT

Hello @Julián_AragónM

Thanks for you answer. For S32K144W we are using S32DS3.3 with RTM_4.0.1

Best regards,