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Re: [uracoli-devel] radio_set_state(): how long to wait?
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From: |
uracolix |
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Subject: |
Re: [uracoli-devel] radio_set_state(): how long to wait? |
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Date: |
Mon, 30 Nov 2009 05:54:00 +0100 |
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User-agent: |
KMail/1.9.9 |
> I agree, the CSMA backoff times can get very long, up to
> (2^8 -1) * 20 * 0.4ms * CSMA_RETRY ~ 2s * CSMA_RETRY
> ... no way for any blocking function here.
Typo, 400us is the byte duration, 50 us is the symbol time for BPSK20,
20 Symbols is the CSMA backoff period, so the worstcase backoff time is:
(2^8 -1) * 20 * 50us * CSMA_RETRY ~ 255ms * CSMA_RETRY, for the
µC this is also a long time.