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

Question

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.

jameskim · Answer

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

jameskim · Answer

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.

jameskim · Answer

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