How can I connect an external Ethernet module as a second Ethernet port to stm32mp157d-dk1 board? Is there any available ethernet module to use with stm32mp157d-dk1 board?
The project I am working on requires two ethernet ports. I want to add an additional ethernet port to the stm32mp157d-dk1 board.
Add one using SPI interface. For example using w5500 IC
Related
Is it possible to connect the Ethernet port (of a Raspberry Pi) directly to a Modbus TCP RJ45 port (such that the devices can talk to each other)? Or is this not possible without a converter?
I am unsure if this is the correct forum, but I believe this should not be specific to the Raspberry pi.
Short answer - Yes... But....
As per the comments this is possible but there are a few things you will need to do (i.e. some configuration will be needed).
I think it's worth nothing that "Modbus TCP RJ45 port" is not really a meaningful term. Modbus is an application layer protocol; this depends upon a number of underlying layers:
Transport layer - TCP
Network layer - IP
Datalink Layer - Ethernet
Physical Layer - Ethernet cable with RJ45 connectors
You don't need to understand this in detail; the point is that before ModbusTCP will work you need to have a working TCP network (which all Modbus-TCP devices will support; generally via an RJ45 Ethernet connection). As such a better question probably is "If I run a CAT-5 cable between a Raspberry Pi and another device (Modbus TCP unit) will I be able to connect via TCP?" (a lot more people know about TCP/IP networking than Modbus!).
The first thing to consider is Ethernet. Running a cable directly between two older devices will often not work because they needed a crossover cable. Almost all modern equipment (including the Pi) supports Auto MDI-X which means the cable will just work. You can also connect the units via a switch (and doing this removes the need for Auto MDI-X).
Next you need to consider the IP layer. When you connect your Pi to your home network it will (usually!) be given an IP address by a DHCP service (usually running on your router). If you are connecting the Pi directly to the device then there will be no DHCP service so you will need to manually assign IP addresses to the devices (and ensure the subnet is correctly configured). A common way to check if an IP connection is working is to use the ping command.
With the lower layers working ModbusTCP will generally 'just work'. Many ModbusTCP devices also offer a browser based configuration and checking that you can access that is a good way to confirm that the network link is working.
One further question is probably "should I do this"; it's OK to hook things up this way to make some quick changes. However generally you will want the Pi to access other network resources so connecting everything to a router (home router will work; for remote devices a cell router is often used). You can either give the Modbus unit a static IP manually or use the routers configuration pages to assign it a static DHCP lease (otherwise it's IP might change from time to time).
I have installed ethernet driver but Ethernet is not showing up in Measurement set up. Also when I load blf files with ethernet log, software prompts for register bus Ethernet
You need to set ethernet in Hardware-> channel usage
Add Eth network in simulation setup
Configure eth in Simulation-> TCP/Ip stack
Configure ETH hardware
In measurement setup you can add for example ETH trace
I am trying to configure the minimum I can to get my Nucleo-F429ZI to respond to a ping
Using CubeMX, I enable ethernet in MII mode and assign a unique MAC address.
In Middleware I enable LwIP (no RTOS, no DHCP) I set an IP of 192.168.1.55, 255.255.255.0, 192.168.1.1.
I enable ICMP, UDP and TCP.
I build in TrueStudio and run, but no response to a ping from my linux box on the same network.
In main.c I see
MX_LWIP_Init(); which call lwip_init() with the address mask and gw I configured.
In lwip.c
I see my IP, mask and gw initialized correctly followed by lwip_init();
I try to ping from my linux box (same network) but get "host not found"
What am I missing???
in Nucleo-F429ZI the Ethernet physical chips is LAN8742A-CZ-TR that you should configure Ethernet media (your micro mac) in RMII mode, FOR MII interface you need RXD[3:0] and TXD[3:0] between your media level and physical level , but if you look at LAN8742A-CZ-TR datasheet or Nucleo-F429ZI schematic you found that between your physical and media you just have RXD[1:0] and TXD[1:0] pins that is RMII standard interface
your problem can occur according several reasons,
check your media config
check connection and look at links led on your eth connector
check auto negotiation process between your Linux box and phy
CubeMX default RMII pinout and Nucleo-F429ZI pinouts are different. You must change the following pins for achieving communication via ethernet.
PB11 -> PG11 (RMII_TX_EN)
PB12 -> PG13 (RMII_TX_D1)
Also, PHY address is should set to 0 in ETH settings.
I am new with u-boot and uclinux ,
How can i add one more ethernet mac interface in u-boot.
As seen at startup of u-boot in only one interface comes
Net: eth driver init
M2S_MAC
I want two add one more so that i can have one more ip address i.e. eth1
I have read following question
Can u-boot support more than one ethernet port?
where i got that eth_current_changed() and eth_set_current() in net/eth.c has to change
but it doesn't defines ,how to add a interface . i have got the driver for the new mac interface also.
Yes, multiple ethernet devices are well supported. The exact details will depend on what board you're working from and the driver in question, or if you're trying to have different distinct drivers registered.
I have 2 TP-Link routers with OpenWRT installed. Two routers are connected by WDS bridging system. How can I send file from one router to another from ssh session? Please, suggest me how I can do that.
Thanks.
1.create a virtual interface and configure ip;
2.bridge virtual interface to wireless interface faceļ¼
3.use scp or other tools