LeafLabs Garden

A place to share, learn, and grow...

1. 

   poslathian
   LeafLabs

   dsgamermike, alternatively to porting over a TCP stack for an ethernet shield, you might also consider using one of these ethernet->serial converter boards, like those from wiz-net (unless you were already talking about one of those)

   For example: http://www.arduino.cc/en/Main/ArduinoEthernetShield uses a wiznet chip, an ethernet->serial converter WITH an onboard TCP stack. These are super easy to talk to and do most of the work for you. Even if you cant get the "ethernet library" (which you probably can port fairly swiftly) running, to talk to these shields is really just writing some commands over serial to turn them on, configure the network, and then send data over serial. very straightforward.

   Posted 4 years ago #
2. 

   dsgamermike
   Member

   Thanks poslathian! Yes, I do have the Arduino Ethernet shield (Wiznet5100) Do you have a guide, or examples that I could use to start this board up?
   I'm not very knowledgeable in writing library's, but I have used the Arduino and made a project that is too big for it to handle, thus why I bough the maple.

   Posted 4 years ago #
3. 

   robodude666
   Member

   The Ethernet Shield really should work with little effort adapting the official Arduino library. The only thing you'd have to change is some specifics related to the communication.. If they use Serial.print, you use Serial2.print, etc. Otherwise, it should more or less "just work."

   Posted 4 years ago #
4. 

   dsgamermike
   Member

   The problem is that I do not know what I am looking at when I open up the Ethernet library. I am asking for someone to port that library for me :)

   Posted 4 years ago #
5. 

   robodude666
   Member

   Here's a quick project I put together with the Ethernet library I found in my (somewhat old) Arduino install:

   http://www.mediafire.com/?fpivainhjpiavfi

   It appears the Arduino Ethernet shield uses SPI instead of Serial. I defined a HardwareSPI instance called SPI, modified the SS related code to use D10 as the select pin using wirish, added some stdint header includes, and that's about it. It compiles. I haven't tested if the library works, as I don't have an Ethernet Shield, but it does compile...

   -robodude666

   Posted 4 years ago #
6. 

   dsgamermike
   Member

   No dice, I don't know the initialization procedure, but it seems to fail to obtain an ip, I can not ping it.

   Posted 4 years ago #
7. 

   crenn
   Moderator

   I'll admit I haven't been working on this recently due to other commitments which should be ending late tonight. I'm wondering if the library changed in the Arduino libraries since I last touched it which would make it easier to port. Rest assured, this is on my todo list.

   Posted 4 years ago #
8. 

   robodude666
   Member

   The problem most likely relates to this block of code from the W5100 driver:

   void W5100Class::read_data(SOCKET s, volatile uint8_t *src, volatile uint8_t *dst, uint16_t len)
   {
     uint16_t size;
     uint16_t src_mask;
     uint16_t src_ptr;
   
     src_mask = (uint16_t)src & RMASK;
     src_ptr = RBASE[s] + src_mask;
   
     if( (src_mask + len) > RSIZE )
     {
       size = RSIZE - src_mask;
       read(src_ptr, (uint8_t *)dst, size);
       dst += size;
       read(RBASE[s], (uint8_t *) dst, len - size);
     }
     else
       read(src_ptr, (uint8_t *) dst, len);
   }

   The CodeSourcery compiler has issues with this line:

   src_mask = (uint16_t)src & RMASK;

   It doesn't like casting a pointer to a uint8_t as a uint16_t and doing a binary operation on it. I converted it to:

   src_mask = (uint16_t)*src & RMASK;

   in my port, but I doubt it yields the same result.

   Without the shield itself for testing, I can't really say what's going wrong.

   As for crenn, yes.. The code has changed A LOT compared to the version in your github repo. Might be worth porting the latest version. As for your errors you've experienced here, libmaple doesn't implement a Streaming functionality like Arduino does. You can simply make Client inherent from Print, if you don't want streaming functionality. If you want Streaming support, add the Streaming library header to the project, include it in Client.cpp. You'll still need to change Client to inherent from Print, however.

   -robodude666

   Posted 4 years ago #
9. 

   mrichard
   Member

   Bump.

   Has anyone made any significant progress with the ethernetShield library port? I have both the shield and a maple and am available to test anything you want me to.

   -mattattack

   Posted 4 years ago #
10. 

    x893
    Member

    I use combo IO shield for Ethernet based on ENC28J60.
    Easy ported library from Arduino.
    Also i use library from here http://www.olimex.com/dev/enc28j60-h.html

    I never try ZG2102 (WiFi) because i havn't it :)

    First pcb in this post http://akb77.com/g/stm32/new-dev-pcb/

    Posted 4 years ago #
11. 

    mikep
    Member

    Hello x893,
    Did you port the original Arduino library, or a library for the ENC28J60 shield. I have 3 of these shields and have used them with Arduino. Now I would like to use it with Maple. Would it be possible to share the basic library with us?
    Thanks,
    Mike

    Posted 4 years ago #
12. 

    crenn
    Moderator

    mrichard, I haven't touched it recently due to the need for some input capture. I do intend to finish it off soon though. I apologise for the slow progress, I'll post in here as soon as I believe it should work, however I don't have the shield that I can use to test the library.

    Posted 4 years ago #
13. 

    mrichard
    Member

    Crenn, if I were to get an ethernet shield to you, would that help you figure out a solution for library support of the ethernetShield and the maple?

    Posted 4 years ago #
14. 

    crenn
    Moderator

    Possibly, but I'll give shot at fixing up the library tonight and post it here. I have 11 hours to kill on a trip.

    Posted 4 years ago #
15. 

    Albrektson
    Member

    Any updates? How was your trip, Crenn? ;)
    Did someone supply you with an ethernet shield for further study? I'd be happy to wire some money to cover the expense of a shield if that would help get things going! Just check you local retailer for the cost and send me your paypal account-details + how much you need and I'll wire the money instantly!

    Posted 4 years ago #

RSS feed for this topic

Reply »

You must log in to post.