S32148 EVB Evaluation Board Ethernet Question

[Elec_Eng]

Hi,

I have developed a project implementing ethernet using the S32148 EVB evaluation board and S32 Design Studio with the ADTJA1101 Automotive Ethernet Adaptor Card. The project was adapted from the example 'enet_loopback' project.

Everything is working great and we are looking to order a batch of S32 Microprocessors and start turning our own PCB.

The problem is, when ordering I have some confusion over the part numbers.

The EVAL board has a FS32K148HAMLU Microprocessor. According to the datasheet the 'A' means that it has CANFD, FlexIO, Security.

The part that I can get is FS32K148UJT0VLUT. The 'J' means that it has 'Ethernet, Serial Audio, CAN FD, FlexIO, Security.

So my question is - It seems that the EVAL board does not have a native Ethernet interface and I'm guessing uses the standard on-board UART to communicate with the Ethernet daughter card through the edge connector?

If this is correct, what would I have to do to use my existing project code with the FS32K148UJ Microprocesssor that has a native Ethernet module built in?

Would S32 Development Studio handle this or are there some things that I need to consider before purchasing the 'J' spec. part.

Any advice would be welcome.

Thanks.

[VaneB]

Hi @Elec_Eng 

The evaluation board comes with a prototype. So, the part number printed in the MCU does not necessarily match the features it has. 

The recommendation is to order the MCU according to the ordering information provided in section 3.2 of the S32K1xx Data Sheet and verify the existence of the part number in the  S32K1xx_Orderable_Part_Number_List.xlsx attached with the Datasheet. 

B.R.

VaneB

[Elec_Eng]

Hi,

Thanks for the reply.

Would you be able to clarify the difference between the two orderable part number variations?

FS32K148HAMLU Microprocessor. According to the datasheet the 'A' means that it has CANFD, FlexIO, Security.

FS32K148UJT0VLUT. The 'J' means that it has 'Ethernet, Serial Audio, CAN FD, FlexIO, Security.

Is there any difference in the way that I have to interface with the two variations to use Ethernet?

[VaneB]

Hi @Elec_Eng 

Ordering Option 2 from the part number provides optional features that your MCU could have. In this case, the S32K148 variants with the letters E, J, or G have ethernet. Therefore, if you are looking for the same functionality of the EVB with which you tested the ethernet example, your choice must have one of these letters in Ordering option 2.

[Elec_Eng]

OK, that makes sense.

Many Thanks.