We are porting a board from W5100 to W5500 chip. The new board using W5500 has the following behavior with respect the to speed led:
When the board is powered the led is ON (speed led = low) with no cable attached to RJ45. When we reset the W5500 the led became OFF. When the reset is removed the led turns ON again before any command. The W5100 turns the speed led ON only when we connect the cable and the network speed is 100 MBit.
Any point we missed ?
Could you give us some directions?
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 .
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.
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.