Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [tcp-ip]

TCP/IP is the suite of protocols used by the Internet and in many other networked systems. Please ensure questions fit within the scope of the site and do not relate to general protocol or networking questions.

80 questions
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What is a good microcontroller for Ethernet applications?

What is a good microcontroller for doing Ethernet applications? Or do I just need a good Ethernet library to connect with an Ethernet MAC/PHY?
Robert Deml
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Why is wired Ethernet losing its speed advantage over wireless?

This has been bugging me for a while now. I did a couple wireless transmission courses back in my university days and it's a known fact that wireless transmission is hard. Partly because it's a shared channel, physical objects can be in the way, air…
Francois
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12
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4 answers

SSL from a Microcontroller

I am wanting make an embedded device that can communicate with a web-server in a secure fashion. My preference would be for it to use standard SSL so the web-server views my device similar to a web browser. Are there any prebuit libraries for the…
Kellenjb
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1 answer

AT Commands to transmit data through TCP/IP stack with LTE network

I need to design an embedded sotfware that will drive a LTE cellular device (like u-Blox TOBY L2 Series) and its TCP/IP stack to transmit some data toward a distant server. I'm waiting for the device to be delivered at work. For now, I use a GPRS…
Bikemat
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Wiznet W5100 vs. Microchip ENCx24J600

What are pros and cons using Wiznet W5100 or Microchip EncX24J600? It's a bit complicated to explain. My question is about the performance of Microchip TCP stack vs Wiznet TCP/IP core on the chip. Also about the costs ($$). For example: With Wiznet,…
Daniel Grillo
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3 answers

Smallest PIC which the TCP/IP stack can be implemented

What is the smallest (size) PIC with internal oscillator available which the TCP/IP stack can be implemented (and used) successfully? Also, what is the smallest (size) PIC with internal oscillator and Ethernet stack implemented?
Frederico Schardong
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6
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1 answer

How does the TCP/IP stack interact with Wifi components?

I'm trying to transition beyond Arduino and I'm trying to learn how to use an RTOS (like FreeRTOS) to connect to the web via Wifi. It seems that FreeRTOS and ZentriOS and other RTOS supply TCP/IP stacks. Correct me if I'm wrong but It seems to me…
Inc1982
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1 answer

TCP/IP stack in Verilog

I am about to write a TCP/IP stack in Verilog. I would have thought this was a relatively common thing, and that implementations would readily be available online. The obvious Google search for a TCP/IP implementation in Verilog does not point to…
Randomblue
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3 answers

Wireless Sensor to Internet

Looking for a low cost implementation to post ambient temperature readings from a sensor to servers via a COTS router. 1) Have a temperature sensor connected to a micro controller which sends data via a Wifi Module with a TCP/IP Stack to servers 2)…
Peter Mah
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Posting to php server using SIM900 GPRS with AT commands

I am using a SIMCOM SIM900 GSM/GPRS module in an embedded hardware application. Rather than sending device data to a server by SMS (what I've been doing so far) I want to switch and start using GPRS to post data to a server with a PHP script I've…
LShaver
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3
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Working with PIC to send data to server

I'm currently working with the flyport from OpenPicus, it has 24FJ256GA106 PIC processor in it and I was looking for the best way to send information from the flyport to a server. I want to know how can I send this data? In a packet form to the…
JGood
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Using Temac Core - XIilinx Virtex 5 board

I intend to send data packets from my PC to a Virtex-5 board over ethernet cable. I found three ways to achieve this -- 1. Use the Microblaze processor core, using the EDK and SDK tools. (However, It will use a lot of device resources) 2.…
mac93
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Modbus TCP illegal packet (CRC) time-out problem in gateway

I am connecting a Modbus gateway to an RTU acquisition system. I am using a MOXA Gateway MB3480 with a RS485 (2 wires) connector. The thing is that I can't read the data all the time; I receive a time-out error. My settings: Port in RTU slave mode,…
Developing Electronics
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Sourcing for low power stepper motor driver assembly. Which is best cost and host software wise?

For small batch production I am looking for small low cost product. Need it to be network controlled (Ethernet TCP/IP) with open documentation. The current is about 1..2..3 Ampere, voltage 24..48V. Also nice to have just 1..4 axes and DIN rail…
user924
2
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0 answers

STM32 ethernet and TCP issues with firmware 1.27.0 and cubeide (probably at sending messages)

I would like to use the TCP/IP protocol (with LwIP, HAL library, without freeRTOS) in a project but I face some portability issues. I'm starting with TCP echo client example as in chapter 6.1.1 of UM1713 document. I used the 1.26.2 version of STM32…
Damien LUCAS
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