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xujianningkp

TM4C1294XL Connected Launchpad Ethernet Port Pins

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Hi folks,

 

Does any one know which pins of the Connected Launchpad are using for the ethernet port? Based on the pin layout that provided by energia I could guess the ethernet is using SPI(4) but I want to know exactly where are these pins located. Thanks if you can give me some ideas :)

 

http://energia.nu/Guide_ConnectedLaunchPad.html

 

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The TM4C1294NCPDT features a MAC/PHY. The communication to the MAC is through registers directly. There are no physical pins involved other than the pins connected to the Ethernet transformer but these are dedicated pins and not GPIO's/SPI.

 

I see, thanks :)  one more question. From the energia pin layout, it has SPI(1), SPI(2), SPI(3), and SPI(5). so where are the pins for SPI(4)??

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@@xujianningkp

 

TM4C1294NCPDT datasheet says it only has 4 SSI interfaces.

 

http://www.ti.com/lit/ds/symlink/tm4c1294ncpdt.pdf (datasheet) lists all the pins and functions, and indeed it lists SSI2, SSI3, SSI0, SSI1 as does the User Guide for the LaunchPad, http://www.ti.com/lit/ug/spmu365a/spmu365a.pdf.

 

Leads me to belive SPI5 is a typo.

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There are a couple of bugs in some of the TI Connected LaunchPad SPI pinout documentation. You will be able to figure it out by cross-referencing documents.

 

Bob Rice

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