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433MHz / 2.4GHz communications with Netduino/Netduino Plus

netduino netduino plus 433Mhz 2.4GHz

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#21 Homey

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Posted 24 October 2014 - 05:50 PM

I have contacted Nordic on this issue (more later on that) but it seems the issue is on the transmitter. Here is a dump of the status register showing that MaxRetries is getting hit every other transmission at the start and end of every IRQ event firing.

Writing: 1 A5-A5-0C-00-00-FF
IRQ Start - Status: DataReady: False, DataSent: True, ResendLimitReached: False, TxFull: False, RxEmpty: True, DataPipe: 7, DataPipeNotUsed: False
Tx Data Sent Successfully
IRQ End - Status: DataReady: False, DataSent: False, ResendLimitReached: False, TxFull: False, RxEmpty: True, DataPipe: 7, DataPipeNotUsed: False
=====================
Writing: 2 A5-A5-0C-00-01-FF
IRQ Start - Status: DataReady: False, DataSent: False, ResendLimitReached: True, TxFull: False, RxEmpty: True, DataPipe: 7, DataPipeNotUsed: False
Send Failed - Resend Limit Reached - Flushing Tx Buffers
Tx Data Not Sent - Failed
IRQ End - Status: DataReady: False, DataSent: False, ResendLimitReached: False, TxFull: False, RxEmpty: True, DataPipe: 7, DataPipeNotUsed: False
=====================
Writing: 3 A5-A5-0C-00-02-FF
IRQ Start - Status: DataReady: False, DataSent: True, ResendLimitReached: False, TxFull: False, RxEmpty: True, DataPipe: 7, DataPipeNotUsed: False
Tx Data Sent Successfully
IRQ End - Status: DataReady: False, DataSent: False, ResendLimitReached: False, TxFull: False, RxEmpty: True, DataPipe: 7, DataPipeNotUsed: False
=====================
Writing: 4 A5-A5-0C-00-03-FF
IRQ Start - Status: DataReady: False, DataSent: False, ResendLimitReached: True, TxFull: False, RxEmpty: True, DataPipe: 7, DataPipeNotUsed: False
Send Failed - Resend Limit Reached - Flushing Tx Buffers
Tx Data Not Sent - Failed
IRQ End - Status: DataReady: False, DataSent: False, ResendLimitReached: False, TxFull: False, RxEmpty: True, DataPipe: 7, DataPipeNotUsed: False
=====================

Homey

#22 ShVerni

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Posted 24 October 2014 - 09:05 PM

That is strange, looks like you've gone deeper into this than I ever have, so I don't think I can be of much help. Still, I'd be curious to hear if you figure out what the problem is, or what Nordic has to say.







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