topic Re: S32G3 bootconfig through serial EEPROM in S32G

S32G3 bootconfig through serial EEPROM

piaochunri — Thu, 26 Sep 2024 10:50:46 GMT

Hi experts,

About S32G3 bootconfig through serial EEPROM how can I obtain current bootconfigwords and fix it. Thank you!

Re: S32G3 bootconfig through serial EEPROM

alejandro_e — Thu, 26 Sep 2024 22:47:28 GMT

I’m assuming you are using the RDB3 board. Then the 32 bits (0 – 31) you see in the excel file represent the 4 dip switches present in your board:

You can check the schematic to see the order of the bytes [page 32, S32G-VNP-RDB3, SPF-53060.pdf] available in deseing files section of the S32G-VNP-RDB3 product page:

You can check the User Guide to learn more about the different switch configurations [Starting in page 3, Chapter 3, S32G-VNP-RDB3 Switch Setting, S32G-VNP-RDB3 User Guide, Rev. 1.0, 03/2023] available in de documentation section of the S32G-VNP-RDB3 product page:

Let me know if this information solved your question.

Re: S32G3 bootconfig through serial EEPROM

piaochunri — Fri, 27 Sep 2024 00:49:21 GMT

We are debugging a self-developed board with S32G399A. And our board only supports bootconfig through serial RCON not through parallel RCON. I want to known how can I set it.I have tried some commands during u-boot step.But I am not sure it is useful.

Re: S32G3 bootconfig through serial EEPROM

alejandro_e — Fri, 27 Sep 2024 22:27:30 GMT

Hello @piaochunri,

To be able to boot from SerialRCON I recommend you check AN13456 [page 6, S32G3 Boot Process, Rev. 1, 02/2023]

You can also get more information in the S32G3 reference manual [page 1319, S32G3 Reference Manual, Rev. 4, 02/202]:

This means the 32bits used as boot configurations need to be already present in the EEPROM.

If it's possible I can recommend using EEPROM AT24C01C-XPD-T, which is used in the EVB3-Board which supports S32G3 chips.

Let me know if this information solved your question

Re: S32G3 bootconfig through serial EEPROM

piaochunri — Sun, 29 Sep 2024 06:04:40 GMT

Thank you!Yes,I have read these documents.We are debugging a self-developed board of S32G399A. The designed scheme of boot mode is referred S32G-VNP-RDB3(RCON12 and RCON13).I also referred the link HOWTO: Program Serial RCON using S32 Debug Probe S32G2xx - NXP Community to debug the EEPROM.But it stopped during initialization.My A core bsp version is 40.0.

I used S32 debug probe.Is it necessary to connect the debugger to my laptop through ethernet or USB connection is ok?The info of probe is as follows. And I runned the python script.It resulted in error.What should I do?Thank you!

Re: S32G3 bootconfig through serial EEPROM

piaochunri — Sun, 29 Sep 2024 07:33:32 GMT

Yes.We are debugging a self-developed board of S32G399A.The scheme of boot mode part is referred to S32-VNP-RDB3. I was debugging Acore and the version of bsp is 40.0.And I followed the link HOWTO: Program Serial RCON using S32 Debug Probe S32G2xx - NXP Community t o debug it.

But when I runned the python script it could not pass the initialization whether I inserted the SD card or not.The result seems the same. What should I do?Thank you!

Re: S32G3 bootconfig through serial EEPROM

piaochunri — Mon, 30 Sep 2024 06:53:47 GMT

I have sovled the problem after I set the host name of s32g debug probe and I can config the EEPROM now. Thank you!

Re: S32G3 bootconfig through serial EEPROM

alejandro_e — Mon, 30 Sep 2024 17:25:16 GMT

I'm glad to know you were able to solve the problem! Thanks for marking the answer as accepted.

Re: S32G3 bootconfig through serial EEPROM

alejandro_e — Tue, 15 Oct 2024 19:27:09 GMT

Hello @piaochunri,

Sorry for the late response, once you select a correct answer the topic is marked as closed and I stop receiving notifications. Please create a new post with your new problem as it is not completely related to the original post so one of my teammates or myself can help you.

Sorry again for the late response