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 Posted: Apr 19, 2012 - 07:40 AM |
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Joined: Mar 13, 2012
Posts: 21
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Hi. I'm some troubles with pairing. I'm using AT86RF231 with a non atmel µ and perfomance test tal example.
First, when i'm using the timeout values of 50ms for Tx and 200ms to wait for Rx, i can't reach the pairing menu. When i try to use 200ms for Tx and 50ms for Rx, i quickly (in less than 10 trials) see the message "Peer device found".
However the local node is in 'Pairing_rsp_rec'. And the remote node stays in 'Wait_for_pair_conf' and never receives pairing response (and never display he's acting as a reflector).
My local node sends the pairing request and goes to tal_state TAL_AUTO and then TAL_DONE but the tx_done_handling() is not called before the send_pairing_conf(). (so pairing conf is not sent because the tal is not idle...)
any idea that could help?
thank you |
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Posted: Apr 19, 2012 - 11:21 AM |
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Joined: Sep 29, 2010
Posts: 113
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| You mentioned using a non-atmel micro, so are you sure the timers, etc. work fine on your platform? |
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Posted: Apr 19, 2012 - 03:55 PM |
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Joined: Mar 13, 2012
Posts: 21
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Maybe my timers are not working so well.
What would i see if i toggle a pin everytime tx_done_handling is called during pairing........?
I think i would see a signal at PAIR_REQUEST_SEND_INTERVAL_IN_MICRO_SEC period (which in the example is 50 ms) and nothing else on the local node.
I think on the remote node i would see a signal at maximum PAIR_RESPONSE_TIMEOUT_IN_MICRO_SEC (200ms in the example) |
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Posted: Apr 20, 2012 - 03:03 PM |
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Joined: Sep 29, 2010
Posts: 113
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| Hmm, how about this - from main, try calling pal_timer_start with some known timeout. In the expiry handler callback, toggle a pin and restart the same timer with the same timeout. Run the code after commenting out all tasks except pal_task in the main while() loop. Probe the pin to see if you are getting the expected period. |
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Posted: Apr 20, 2012 - 03:03 PM |
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Joined: Mar 13, 2012
Posts: 21
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| My local node never goes into the RX mode, i've check and the CMD_RX_AACK_ON is set after a TX_ARET so it should be working. On my remote node i'm in CMD_RX_AACK_ON most of the time and it receives everything. |
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Posted: Apr 27, 2012 - 08:58 AM |
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Joined: Mar 13, 2012
Posts: 21
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I've set just one send in pairing request
I'm watching if the remote node answers everytime and else why he's staying silent.
3 cases occur,
first, a Tx frame of 700µs is sent and the remote node send back a peer response
second , a Tx frame of 400µs is sent and the remote node keep silent
third, two Tx frames of 700µs separeted by ~2ms are sent and the Tx mode keep silent. I think i resolved third by putting TAL_MAXFRAMERETRIES_DEFAULT to (0x00) but this can't stay like that for eternity i guess.
What should be the normal lenght (µs) of a Tx Peer Request?
How can the lenght of a Peer request could change? (or what is the lenght (µs) of a Peer confirm?)
My IRQ pin on the Tx node stays 20ms high after Tx, is this could be something normal (after BUSY_TX_ARET) ?
Thank you for answers |
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Posted: Apr 27, 2012 - 01:36 PM |
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Joined: Jun 17, 2008
Posts: 456
Location: Meissen, Germany
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The length of the frame is not enough to debug this issue.
If you have a spare node with a serial interface remaining,
you could make it a sniffer and analyze the content of the frame. |
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Posted: Apr 27, 2012 - 01:42 PM |
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Joined: Mar 13, 2012
Posts: 21
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| Yes, i've been advised of this already. I've ordered a raven usb and will receive it soon. |
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Posted: Jun 22, 2012 - 02:13 PM |
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Joined: Mar 13, 2012
Posts: 21
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Hi,
just to give some news,
i received the raven usb stick and download the code into it (by the way the usb programming moed is not working), i used avr to program it. Then i installed it as network connection and used the java consol to control it and wireshark to see frames. I'm just starting to see frames. |
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Posted: Jun 26, 2012 - 08:59 AM |
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Joined: Mar 13, 2012
Posts: 21
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I've got one question,
i've looked several times to find the demo board of the atmel mac on distributors sites but i couldn't find. The part i'm using is AT86RF231_AT91SAM3S4B_SAM3_RFEK01. Where can i find this board? I would like to have it to be able to dissociate hardware issues from the software issues. |
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Posted: Jun 26, 2012 - 12:12 PM |
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Joined: Jun 15, 2008
Posts: 1779
Location: North Carolina USA
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Posted: Jun 26, 2012 - 01:27 PM |
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Joined: Mar 13, 2012
Posts: 21
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| Thank you, i'm already aware. That's what i'm using as a sniffer. It's with an AT86RF230 and not RF231. I would like to find a card where i can download the code made for AT86RF231_AT91SAM3S4B_SAM3_RFEK01 without changing anything. |
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