AM335x pinmux for LCD, NAND, Ethernet conflicts

shannon mackey

We're developing a project based on the TI General Purpose AM335EVM that needs LCD, Ethernet, and NAND flash. But, using the Pinmux utility, I haven't been able to select these three interfaces without conflict. I've attached my pinmux.dat file, with two pins remaining conflicted.

Any ideas on resolving the conflicts?

PinMuxDesignState_AM335x-h92.dat

over 13 years ago

0 Biser Gatchev-XID over 13 years ago

TI__Guru**** 393215 points

Hi Shannon,

From what I see you have selected the PRU-ICSS/MII1 signals instead of the 3-port switch (GEMAC-CPSW) signals for Ethernet. Please note that the PRU module supports only Industial Ethernet protocols. If you select the GEMAC-CPSW GMII1 mode and reduce MMC0 to 4 data pins you should be able to resolve. Just check out the EVM schematics carefully - all processor pins have their pinmux options listed there.

Best Regards

Biser

0 shannon mackey over 13 years ago in reply to Biser Gatchev-XID

Prodigy 200 points

Thanks a heap! Now I'm on the right track.

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AM335x pinmux for LCD, NAND, Ethernet conflicts