topic Re: Difference between S32K3 Flashdrivers in S32K

Difference between S32K3 Flashdrivers

FelixR — Thu, 04 Jul 2024 09:27:27 GMT

Hello there smart people,

can someone explain to me or hand me some references what are the difference between the flash drivers which are provided by the RTD package? I did see that there is the C40 Driver, the MemAcc and the Fee Drivers. Now I am a bit confused what are the benefits and drawbacks of those drivers.

My usecase would be a bootloader where I want to adress the C-Flash from a "logical" addresspace to a "physical" addressspace continously with datapackages and use the D-Flash for metrics and failure tracking.

Which of those driver would fit the best for this?

Re: Difference between S32K3 Flashdrivers

Julián_AragónM — Thu, 04 Jul 2024 18:03:28 GMT

Hi @FelixR,

Depending on which AUTOSAR version you are trying to use, the flash driver changes.

For example, you can see included in the SW32K3_S32M27x_RTD_4.4_4.0.0_P20 the driver Fls_TS_T40D34M40I0R0. On the other hand, SW32K3_S32M27x_RTD_R21-11_4.0.0_P19 includes the Mem_43_INFLS_TS_T40D34M40I0R0 driver.

This is because in Autosar R21-11, the Fls Driver has been replaced by Mem_InFls/Mem_ExFls. You can refer to the official Specification of Memory Access from AUTOSAR.

The C40 driver is a non-AUTOSAR IP layer. You can refer to the 02: S32K3xx Real-Time Drivers (RTD) training.

You can look at AN13388 Memories Guide for some guidelines.

Best regards,
Julián

Re: Difference between S32K3 Flashdrivers

FelixR — Thu, 11 Jul 2024 09:29:29 GMT

Thank you verry much Julián!