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MCU & Boards

W5300 / Strange ARP response during UDP communication

안녕하세요 W5300 으로 UDP 통신중 문제가 발생하여 문의를 드립니다. 기본적으로 통신연결과 데이터는 잘 동작하는데 가끔 ARP가 생기면서 응답할때 간간히 문제가 생깁니다.문제될 시 의 아래의 캡쳐를 남깁니다. PC -> 장비로 데이터를 보내며 ARP응답을 잘 하게 되면 계속 통신이 되는데 잘못된 데이터가 오면 잠깐 ( 몇초에서 수십초 가량) 통신이 끈기게 됩니다.  

MCU & Boards

Reprogram W7500P

Have a 950-W7500P-S2E chip that has been programmed with a bin file.  Is it possible to program over the top of this file?  How is this done?Thanks in advance

MCU & Boards

Unable to Flash W7500P, Write Protected

Hello,I've run into an issue with the W7500P while flashing firmware. To start off I am unable to share the entire source code or schematic, but I can share sections of the source code and the schematic itself is functionally identical to the published reference schematic on the Wiznet GitHub; with the exception of GPIO pins being fanned out to headers, but these are unpopulated while I am testing…

Ethernet Chips

W5500을 사용하는 중 PHY Link에 문제가 발생하고 있습니다.

현재 W5500을 이용하여 보드를 설계하였고 일반적인 동작은 크게 문제가 없습니다.다만 간헐적으로 부팅이 필요한 네트웍 장비와 제가 설계한 보드에 전원이 동시 투여 되었을 때피지컬 링크가 활성화되지 않습니다. 정확히는 네트웍 장비의 RJ45소켓의 링크에 불이 들어오지 않습니다.보통은 네트웍 장비가 부팅이 끝나면 피지컬 링크가 활성화 되고 통신이 문제없이 이루어지는데문제가 발생하면 제 보드 상에서 주기적으로 PHYLINK를 확인해 봤을 때 PHY_LINK_ON과PHY_LINK_OFF를 왔다갔다 합니다. LINK_ON에서 LINK_OFF는 약 5초, LINK_OFF에서 LINK_ON은 약 10초 정도 걸리는 것 같습니다.  이로 봤을 때 W5500과의 SPI통신은문제가 없는 것으로 보…

MCU & Boards

W7500P PHY Unable to Link

Hello,I am working on a board based around the Wiznet W7500P, I'm using the standard peripheral library from the Wiznet GitHub. With a design functionally identical to the reference schematic. Recently one of my units fails to establish a link with a connected ethernet cable, the same firmware and hardware succeed on an identical unit. This behavior persists between soft resets of the PHY, to…

MCU & Boards

W55RP20-EVB-Pico Ethernet - GPIO 관련 질문.

안녕하세요,현재 W55RP20-EVB-PICO 를 사용해서 프로젝트를 진행중입니다. 현재 프로젝트 성격상 가용 가능한 GPIO 핀들을 거의 다 사용해야 하는 상황인데 Ethernet 을 사용하면 (Ethernet 관련 코드를 사용하지 않았을 때는 문제 발생 안 함) GPIO 0, 1, 4 의 세팅을 Ethernet 라이브러리가 가져가 버리는 듯 합니다. 물론, 이는 GPIO세팅을 다시 하면 되찾을 수 있기는 한데, Ethernet 도 계속 사용해야 하므로 지속적으로 GPIO핀의 상황을 체크해야 해서 조금 거추장스럽습니다. 이게 과연 의도한 현상인지 아니면 Ethernet 드라이버 관련 버그인지 알고 싶습니다. 

Ethernet Chips

W6100 TCP Retransmission

Wireshark로 Packet을 분석해  보니 문제점이 있어서 문의를 합니다.1.Hardware 구성 STM32F103 + W6100 을 사용하여 TCP 통신을 하고 있습니다.W6100-EVB 회로구성과  같게 하였고, STM32F103 FSMC_BUS Driver를 사용했습니다.2. 통신 조건  PC(win11,client Mode,IP:192.168.1.100) <-> W6100(Server mode,IP:192.168.1.2 Port:2000)3. 정상 Packet 일 경우: client에서 요청데이터를 Server로 전송 후, 바로 Server에서 client로  응답데이터 전송4. Retransmission 발생  …

Ethernet Chips

W5500 communication failure

Hello, I connected  W5500 with STM32F401, and hang up with issues.     I am using http server. Issue: LAN cable to W5500 communication failure. PC is sending handshake packets but W5500 is not respondingObservations1.) W5500 with STM32 is working fine              SPI is working fine(read the version register   it is 04)  …

Serial-to-Ethernet & ConfigTool

W55RP20 SPI INT NOT GETTING TRIGGERED IN S2E

I am using W55PR20 EVB BOARD CONNECTED TO MCU AND USING SPI INTERFACE TO CONNECT TO W55PRO. USING STANDARD S2E RELEASE 1.23 FROM WEBSITE. i am able to see DEBUG MESSAGE COMING PROPERLY TO W55PR20 and the same is not coming to SPI. All options are explored , seeing SPI INT not getting triggered at all.  Need hlep.

Ethernet Chips

다중 칩 설계하여 소켓을 8개 이상 확장 사용하여 구성 가능한가요?

RJ45 커넥터는 1개로 사용하고 MCU에서 WIZNET IC 3개를 제어해서 24개 소켓통신을  하도록 구성하려 합니다. 이런식 구성이 가능한지, 해당 어플리케이션 노트 같은 설계 자료가 있는지  문의 드립니다.

Serial-to-Ethernet & ConfigTool

WIZ750SR-100 Configuration Issue with Firmware 1.4.x

Hello,I have been using the WIZ750SR-100 for several years, and everything works correctly with firmware versions earlier than 1.3.3.The latest batch of boards came with firmware version 1.4.2 (I also tested version 1.4.5). As soon as I use the configuration tool (v1.6.2.3) to modify the settings, the board stops working (no longer discover-able or ping-able) and the blue LED no longer turns on.I…

Ethernet Chips

Inquiry About an Embedded 10GbE Ethernet Switch IC

looking for an embedded Ethernet Switch IC (not a standalone switch or networking equipment) that can be integrated directly onto their PCB.The main requirements are as follows:5 to 10 Ethernet ports10 Gigabit Ethernet (10GbE)Ethernet switch chipset/ASIC for PCB integrationIndustrial applicationCould you please let us know if you have a product in your portfolio that meets these requirements?If yo…

Ethernet Chips

Clarification on WIZ120SR Obsolescence, MCU Replacement, and Firmware Support

Dear Team,We would like to seek clarification regarding the current status and long-term support of the WIZ120SR module.Kindly confirm whether the WIZ120SR has been declared obsolete and if its manufacturing has been discontinued.Additionally, please clarify whether technical support for this module is still being provided.We are extensively using the WIZ120SR in our systems, and it is expected to…

Ethernet Chips

Error in Wiznet 5500 Schematic?

I note the Receive center tap pin on your Wiznet W5500-Pico-POE reference is tied to +3.3V.  On wiz850io_sch_v100.schdoc  reference designes it is tied to ground via a .1uf cap.  Does it matter?  I am working on building a custom board with the W5500 using a TRJ4284AHNL magjack with POE.    

IO Modules

Proper way to change an IP address (W5500)

We are using a W5500 chip and the ioLibrary:https://github.com/wiznet/iolibrary_driverI am trying to figure out the steps needed to change the IP address on a working device, without requiring a reboot.My code is based on the Wiznet examples, with wrappers made to pull network values from our configuration EEPROM and apply them:wizchip_setnetinfo (&S_netinfo);We then have code for the http and…

IO Modules

W5500 IO Library hanging (no PING) - using http and snmp server code

We use an W5500 chip. We have software from the github:Wiznet/ioLibrary_Driver: ioLibrary_Driver can be used for the application design of WIZnet TCP/IP chips as W5500, W5300, W5200, W5100, W5100S, W6100, W6300.I blink a heartbeat LED in our main loop. It continues to operate, but sometimes the Ethernet stops responding to PINGs, or serving HTTP requests or SNMP requests.Our main loop is making ca…

Serial-to-Ethernet & ConfigTool

WIZ750SR-TTL looses connection

Hi, I have a WIZ750SR-TTL used to convert a UART Modbus signal to an Ethernet one, so I can communicate with a Safety PLC that has only Ethernet.The thing is that I lose the communication around once a day, I've tried to remove the gateway and DNS (since I do not need to connect to the internet), I've tried to lower the retransmission test, I've tried to enable keepalive. I've managed to increase…

Ethernet Chips

W5500 Implementation With External Transformer

I have some questions regarding the integration of the W5500 with an external transformer (without PoE).I've seen the WIZnet reference designs for the W5500 with both an integrated transformer in the MagJack and with an external transformer. However, I've noticed that the resistors for the differential pair termination impedance of the MDI Rx cable change from 49.9 Ohms (in the MagJack) to 82 Ohms…

Ethernet Chips

Are the W5500 products we have original or fake ?

Could one of the W5500 chips shown in the attached image be fake?The unstable devices were purchased from local distributors between 2020 and 2023, and all of them have the same markings and appearance. The stable devices use W5500 chips purchased directly from DigiKey, as shown on the right side of the attached image.

Ethernet Chips

W5500 Ethernet Link Failure on Some Units – Temperature Dependent, Fixed by Lowering Series Resistor

Some of our devices in the field have been reported to experience Ethernet connectivity issues. After recalling the affected units for investigation, we obtained the following findings:We would appreciate your support in identifying the root cause(s) of this issue.Devices that fail to establish an Ethernet connection start operating normally after being warmed up. While some units work at room tem…