Eth_43_GMAC on S32K344

[won0020]

Hello,
I use S32K3-T-BOX, MCAL RTD 2.0.0 22_03, Eth_InternalLoopback example and PE micro multilink.

I added configuration for all necessary pins according to SCH-50735.pdf and disable Loopback mode. I also added a loop with a delay for cyclic Eth_transmit and flashing the U37 LED to check the run.

After Debug_FLASH everything works as expected and the T-BOX sends ethernet message cyclically, the problem occurs after turning the T-BOX off and on. LED U37 flashes to indicate software is running, but the Ethernet message is not being sent. It occurs to me that the multilink is doing some initialization that doesn't happen after the device is restarted, but I don't know how to solve this problem.

If anyone has a solution, I would appreciate any advice.

Regards
won0020

[PavelL]

Hi @won0020 ,

Jumper S1 needs to be set to OFF to enable NVM boot for SJA1110.

Best regards,

Pavel

[won0020]

Hi,
S1 is off, LED U36 also flashes green.

[PavelL · Accepted solution]

Hi @won0020 ,

have you programmed both FLASHs - S32k3 and Flash attached to SJA1110?

You also start with the lwip demo - please refer to S32K3 Automotive Telematics Box (T-Box) lwIP Example Guide Training Presentation - refer to slide 15 where small workarounds are described.

Best regards,

Pavel

[won0020]

Thank you very much, osif delay solved my problem.