[From QnA] WIZ108SR HW rev1.1 and FW v2.20 HW_TRIG Bug?


#1

I am testing the Wiz108sr hardware version 1.1 with firmware version 2.20.

The wiz108sr is configured as a TCP client connecting to a server with a static address. The wiz108sr is also configured with a static address.

Once a connection is established, HW_TRIG goes low indicating there is a connection. Once a connection is established, the wiz108sr functions fine. However, if the connection is broken, ( for example the Ethernet cable is disconnected) then HW_TRIG stays low, falsely indicating the connection is established. HW_TRIG seems to stay low until the wiz108sr is rebooted.
My understanding is that HW_TRIG should go high once the connection is broken (closed) and this does not happen.


#2

Dear customer,

Currently, Do you use wiz108sr EVB?
If yes, Try to test again without Wiz108sr EVB.
Because if you use wiz108sr EVB, H/W trig pin will operate by switch of EVB.
And when power off, the default value H/W trig is high.
Thanks,
WIZnet


#3

Thank you for your reply.
I started with EVB, but now I am using it directly and looking at the output of the HW_TRIG pin directly. Once connection is established the HW_TRIG goes low. However, if you unplug the eithernet cable which should close the connection, the HW_TRIG stays low it does not recognize the loss of connection.


#4

Dear customer,

When wiz108sr started with EVB, HW_TRIG pin value is setting up by switch value of EVB.
Therefore you should use without EVB(Serial included) for correct measure of HW_TRIG pin value.
thanks,
WIznet