Hi Matt, The boards I mentioned are pre-assembled, ready to use boards -- that way, you can focus on software, and have confidence that the hardware is working fine. In fact, when in doubt, you could re-flash with known- good-working hex files just to verify your hardware is still OK.
The 3.3v regulator for the ENC chip needs to have ample current capability - I'd suggest a 300mA regulator, but that is just from memory. Check the datasheets and errata. TCP/IP doesn't require large packets - I think the minimum size for IP is 576 bytes, and TCP can negotiate the packet size during the initial connection handshake. A typical ethernet packet will be around 1532 bytes, but I've gotten by with less than 1024 bytes on some projects. Note that IP is lossy, so you could end up 'dropping' some incoming packets, but that is no big deal, other than throughput will be reduced. William ps: I think Stef did some JAL work with the ENC chip some years ago. Might be worth a look-see. I've got one of those ENC modules here, but I never hooked it up since I started using the 18F67J60 board. On Sep 4, 12:34 pm, mattschinkel <[email protected]> wrote: > I'd rather start with this ENC chip since I know for sure that I'll > have working hardware. All PIC's with internal Ethernet are SMD, I > don't have much experience with SMD. If there is a pre-build ethernet > board with Ethernet in PIC, I may try it. Anyways, I'm currently > buying some parts to practice SMD. > > Why would SPI be a problem? > > I'll use a good 5v supply, and a 3.3v voltage regulator, that should > give enough power right? > > I think I may be finished with SLIP now. I don't see much point in > using it any further. I guess TCP/IP requires 8kb buffer but SLIP > buffer size is only 1006 (according to RFC 1005). It was great to use > at first, but now I think I'll try to get ICMP to work over Ethernet > and go on from there. > > Matt. -- You received this message because you are subscribed to the Google Groups "jallib" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jallib?hl=en.
