Speed Led Behavior
Ethernet Chips
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Ethernet Chips
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RE: Speed Led Behavior
by lawrence WIZnet ·
Hi, Helio.
when I checked W5100 Schemetic, it supports the speed led.
But W5500 has differences, when I checked W5500 Schemetic, W5500 supports ACRLED, LINKLED, not SPDLED.
I guess that is why you are in confuse.
You can find it with wizwiki.net/wiki/doku.php?id=pro … fschematic .
Thank you,
Lawrence
RE: Speed Led Behavior
by helio ·
Hi Lawrence,
Thanks for the feeback. So I´m still confuse. Please check the shematics you send me. What´s the pin 24 function. Is it not the same in W5100 ?
RE: Speed Led Behavior
by lawrence WIZnet ·
Hi, there
WIZwiki-W7500 is not perfectly the same with W5500.
It has some differences, reg names, porting,…
You can check schemetic with wizwiki.net/wiki/lib/exe/fetch.p … 150401.pdf.
And also there are all documents about W7500 (wizwiki.net/wiki/doku.php?id=pro … 7500:start).
I hope it will help you.
Thank you.
RE: Speed Led Behavior
by helio ·
Hi Lawrence,
I found the point we were confused.
Using W5100 the led pin stays in highlevel (led is OFF on our board) when there is no network connected to ethernet interface.
Otherwise, using W5500 the led pin stays in low level (led is ON on our board) when there is no network connected to ethernet interface.
The chips have diferent behavior in this subject.
Thanks again
Helio
RE: Speed Led Behavior
by kevinlee ·
Hi! Helio,
Please note that the W5500’s PHY is different from W5100’s PHY.
So, the SPDLED signal may operates differently.
Please let us know If the SPDLED indication can be a problem.
For example the LED signal is directly used as some control signal for other systems, etc.
Thank you,
Kevin
RE: Speed Led Behavior
by helio ·
Hi Kevin,
In our project the speed led is used only on yelow led of the RJ45 connector. As today a very few networks use 10 Mbits speed, our costumer see this led the checked if network is connected. Using W5500 this led stays ON regardless the network cable is connected or not. This is not a big problem. We need to change the device manual and post a FAQ with this new behavior.
Anyway, thanks for the interest,
Helio