Pic with ethernet capabilitie?

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CyberMomo

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pic ethernet

Hello world,
Let me describe you what i want to do.
I have one portable pc connected to my desktop pc with wireless wifi. I use my laptob to drive my desktop pc. I can shutdown my desktop pc from my laptop but i can't start-it from my laptop. I want ( woud'like) to make a little cicuit conected in ethernet to my acces point who can start my desktop.

How i can do this? I must use algo with TCP/IP stack? I see some example from microchip but if you have somme experience


It's hard to me to explain my problem in english, sorry for this inconveniance.
 

Hello CyberMomo,

please use the search function of the forum (**broken link removed**) and look for "pic ethernet" with the option "Search for all terms". You will find a lot of useful stuff, e.g. **broken link removed**

By,
cube007
 

You can use any ethernet controller e.g. Microchip's ENC28J60 in combination with any microcontroller which supports SPI e.g. PIC16F877.
 

Microchip also make a microcontroller with a ethernet controler module built in.
You will find application notes at Microchip.
 

You don't need a special circuit. You just need to implement Wake-on LAN, which is easy to write in any language that allows you to send UDP packets or something similar. I wrote a little program in C and I think it worked on the first try. Here's a page:

https://en.wikipedia.org/wiki/Wake-on-LAN

The basic idea is to send a specially formatted packet, which the network card on the "sleeping" machine looks for. It matches against its MAC address. If the packet validates, it wakes up the PC and you're back in business. It's up to you how to shut it down again.
 

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