No answer from W7500P

Pio · October 22, 2018, 12:02pm

Hi everybody.

I am using the W7500P-S2E on a self developed Board.
I got a problem with the RS232->Ethernet Signal.

Receiving from the Ethernet:
Received Data goes trough on the U_TXD0 (PA13/Pin43). It is functional and an other RS232 Device gets the Data. Works fine.

Sending back on the U_RXD0 (PA14/Pin44) is correctly but from there… nothing on the Ethernet. Stays dead silent. -> The signal comes correctly on the W7500P Pin44.

Best Regards
Pio

Pio · October 22, 2018, 12:51pm

Additional:

It had Firmware Version 1.1.0.

I tried to update the version to 1.2.4 with the WIZnet tool 0.5.5 Beta

Bin: WIZ750SRv124.bin (App only)

Cant find it anymore. Still have one backup platine with the old same behavior.

Best Regards
Pio

irina_kim · October 23, 2018, 11:57pm

Hi Pio,

For products prior to firmware version 1.1.2, the latest firmware can not be used immediately due to a change in the firmware update mechanism applied to version 1.2.0.
(Refer to https://wizwiki.net/wiki/doku.php?id=products:wiz750sr:download:start)

Please refer to the following link: WIZ750SR Recovery User Guide

Pio · October 25, 2018, 7:37am

Hi eric,

regardless of the version.
Is it necessary to update the firmware to get rid of the bug I posted?
Is there a known bug?

irina_kim · October 25, 2018, 11:41pm

Hi Pio.

No cases similar to yours have ever been reported.
If you post the hardware design, such as the schematic or gerber file of your board, we will review it and give you the results.

Pio · October 26, 2018, 8:53am

Hi eric,

is there a way to send you the schematic on private?

Best Regards
Pio

irina_kim · October 28, 2018, 11:41pm

Hi Pio.
Yes. Please use the message of the forum to send the hardware design to me.

Pio · October 29, 2018, 8:23am

Hi eric.

Sry I am not allowed to send you a private message here.
Maybe an email address?

Best Regards
Pio

irina_kim · October 30, 2018, 12:11am

Hi Pio.

Ok. Please mail me directly.
We will contact you after review.

eric@wiznet.io

Pio · November 1, 2018, 9:26am

Hey eric.

Thanks for the help.
It was just the missing connection between Pin14 and Pin23.

In total it was my fault using the wrong version of the datasheet. I used v1.0 instead of v1.2.
Also thanks for the fast contact and support via email.

Best Regards
Pio