TM4C1294KCPDT: Why TM4C1294 Ethernet Connections Intermittent?

user5317876

Problem: Mastermodule _ 11_CPU1&2 ETH.pdfWhy TM4C1294 Ethernet Connections Intermittent?
1、TM4C1294 reset is high, clock 25MHz is ok;
2、Ethernet Network transformer is replaced;
At present, it is impossible to locate where the problem lies.
What else might cause the problem?

Thanks & Best Regards,
Alex

over 7 years ago

0 user5317876 over 7 years ago

Prodigy 210 points

Supplementary Notes：
TM4C1294 is also replaced;

Thanks & Best Regards,
Alex

0 Bob Crosby over 7 years ago in reply to user5317876

TI__Guru 72500 points

I am sorry, but I am not able to diagnose the problem from the information you have provided. You appear to be looking at hardware issues and not software. Is this a single unit from a production line with known good software that is failing? In case you have not seen it, here is a link to the TM4C129x Family System Design Guidelines.

http://www.ti.com/lit/an/spma056/spma056.pdf

0 user5317876 over 7 years ago in reply to Bob Crosby

Prodigy 210 points

Thanks Bob Crosby.
As you said, this is a single board from the production line, this problem is solved, It is due to poor welding of TM4C1294.

Thanks & Best Regards,
Alex

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TM4C1294KCPDT: Why TM4C1294 Ethernet Connections Intermittent?