DP83848I: DP83848I Response

alikaan

Part Number: DP83848I

Hi there,

I'm using the DP83848I for my MCU ethernet application. I'm getting timeout response from command screen, but ACT and LINK LEDs active. What should I check first ?

Thanks!

over 4 years ago

0 Lucas Wolter over 4 years ago

TI__Mastermind 27980 points

Hi Ali,

You can try reading registers 0x0, 0x1, 0x10, and 0x11. Is RX_CLK active and what is the frequency? Is CLKOUT active and what is its frequency?

Thanks,

Lucas

All information in this correspondence and in any related correspondence is provided “as is” and “with all faults”, and it is subject to TI’s Important Notice (http://www.ti.com/corp/docs/legal/important-notice.shtml).

0 alikaan over 4 years ago in reply to Lucas Wolter

Expert 2315 points

Hi Lucas,

We succesfully read the registers. When I remove the ethernet transformer, I can ping the MCU but with transformer I couldn't ping the MCU. Could you please check the schematic of the magnetic side ?

Thanks!

0 Lucas Wolter over 4 years ago in reply to alikaan

TI__Mastermind 27980 points

Hi Ali,

We're looking into your question and will get back to you by Thursday.

Thanks,

Lucas

+1 Lucas Wolter over 4 years ago in reply to Lucas Wolter

TI__Mastermind 27980 points

Hi Ali,

You can try replacing the ferrite beads with 0 ohm resistors and see if this helps. Can you please provide the values for the registers I listed above?

Thanks,

Lucas

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DP83848I: DP83848I Response