PIC or xbee times out after Tx 504 bytes


Closed Thread
Results 1 to 7 of 7

Hybrid View

  1. #1
    Join Date
    Jan 2009
    Posts
    17


    Did you find this post helpful? Yes | No

    Default

    finally got the setup to work.

    can't say for sure what exactly what was causing the problem. reflashed all the xbee's to their default and reset a few parameters and all is working fine.

    code was fine and the pic's were fine.

  2. #2
    Join Date
    Nov 2003
    Location
    Greece
    Posts
    4,170


    Did you find this post helpful? Yes | No

    Default

    From a very preliminary test I did, the receiver of the XBees is very susceptible to saturation. I had to move the modules 10-15 meters away to work properly. I know this seems irrelevant ot your case but just keep it in mind.

    Ioannis

    P.S. Are you going to make a ZigBee network?

  3. #3
    Join Date
    Jan 2009
    Posts
    17


    Did you find this post helpful? Yes | No

    Default

    the distance factor could have been an issue and one to keep in mind. thanks.

    i have the xbp24-zb's for another project for a ZB network.

    this current one is using the "802.15.4 series I" xbee's.

    i wonder if there is a config parameter that helps with the saturation issue for short distances? would you know?

  4. #4
    Join Date
    Nov 2003
    Location
    Greece
    Posts
    4,170


    Did you find this post helpful? Yes | No

    Default

    Just drop the RF power to the minimum. But ifdistance is less that 5 meters the receivers are saturated again.

    Ioannis

  5. #5
    Join Date
    Jan 2009
    Posts
    17


    Did you find this post helpful? Yes | No

    Default

    0= -10dBm
    1= -6dBm
    2= -4dBM
    3= -2dBm
    4= 0dBm

    so with these 802.15.4 series I, lowest would be -10dBm, yes?

    good to know, thx

  6. #6
    Join Date
    Nov 2003
    Location
    Greece
    Posts
    4,170


    Did you find this post helpful? Yes | No

    Default

    Yes, that's right

    Ioannis

Similar Threads

  1. Replies: 67
    Last Post: - 8th December 2009, 03:27
  2. How to receive stream of bytes using PIC USART
    By unifoxz in forum mel PIC BASIC Pro
    Replies: 34
    Last Post: - 20th June 2009, 11:38
  3. pic to pic ir link versus wired link : help please anyone
    By xnihilo in forum mel PIC BASIC Pro
    Replies: 13
    Last Post: - 30th May 2008, 22:01
  4. PIC Basic PRO 16F877 USART Interrupt TX
    By BigH in forum Serial
    Replies: 8
    Last Post: - 10th January 2006, 00:26
  5. Serial Pic to Pic using HSER
    By Chadhammer in forum mel PIC BASIC Pro
    Replies: 5
    Last Post: - 12th March 2005, 00:14

Members who have read this thread : 0

You do not have permission to view the list of names.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts